Podcasts about t dxd

Play Episode Listen Later Apr 7, 2025 36:57

Featuring a slide presentation and related discussion from Dr Adrienne G Waks, including the following topics: Updated analyses from key studies of the 21-gene Recurrence Score® for localized ER-positive breast cancer (29:30) Four-year landmark analysis of the NATALEE trial of adjuvant ribociclib with nonsteroidal aromatase inhibitor for localized breast cancer (9:49) The PADMA trial of palbociclib with endocrine therapy compared to chemotherapy induction followed by endocrine therapy maintenance for hormone receptor (HR)-positive, HER2-negative metastatic breast cancer (mBC) (11:25) Imlunestrant with or without abemaciclib for metastatic ER-positive mBC (13:18) TROP2-directed antibody-drug conjugates (ADCs) datopotamab deruxtecan and sacituzumab tirumotecan for HR-positive/HER2-negative mBC (17:50) Recent analyses from the DESTINY-Breast06 trial of trastuzumab deruxtecan (T-DXd) after endocrine therapy for HR-positive, HER2-low or HER2-ultralow mBC (21:09) The ICARUS-BREAST01 Phase II trial of the HER3-targeted ADC patritumab deruxtecan for HR-positive/HER2-negative mBC (26:02) Updates from neoadjuvant/adjuvant trials of pembrolizumab (KEYNOTE-522) and atezolizumab (NSABP B-59/GBG 96-GeparDouze) for localized triple-negative breast cancer (TNBC) (27:36) Ten-year update of the OlympiA trial of adjuvant olaparib for patients with germline BRCA1/2-mutated HER2-negative localized breast cancer (31:23) Exploratory analysis of patients who did or did not receive prior PD-1/PD-L1 inhibition in the Phase III OptiTROP-Breast01 study of sacituzumab tirumotecan versus chemotherapy for previously treated advanced TNBC (32:56) CNS efficacy of T-DXd (DESTINY-Breast12 trial) and outcomes with palbociclib combined with anti-HER2 therapy (AFT-38 PATINA trial) for HER2-positive mBC (34:04) CME information and select publications

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Oncologist On-Call: Thoughts on the Current Treatment Landscape for First-line Management of HER2-Positive mBC

CCO Oncology Podcast

Play Episode Listen Later Mar 25, 2025 14:42

In this episode, listen to Stephanie L. Graff, MD, FACP, FASCO; and Laura M. Spring, MD, share their clinical insights and takeaways regarding the current treatment landscape for first-line treatment of patients with HER2-positive metastatic breast cancer including:Data from multicenter, single-arm, phase IIIb/IV DESTINY-Breast12 evaluating trastuzumab deruxtecan (T-DXd) in patients with advanced HER2-positive metastatic breast cancer and 2 or fewer previous therapiesTreatment sequencing and preferred treatment options in patients with brain metastasesResults from phase III PATINA trial of trastuzumab, pertuzumab, plus endocrine therapy with or without palbociclib in hormone-receptor positive/HER2-positive metastatic breast cancerThoughts on the use of T-DXd earlier in the treatment paradigm in light of recent results from the PATINA trial and highly anticipated results from the DESTINY-Breast09 trialProgram faculty:Stephanie L. Graff, MD, FACP, FASCODirector of Breast Oncology, Brown University HealthCo-Lead, Breast Cancer Translational Disease Research GroupLegorreta Cancer Center at Brown UniversityAssociate Professor of MedicineWarren Alpert Medical School of Brown UniversityProvidence, Rhode IslandLaura M. Spring, MDBreast Medical OncologistMass General Hospital Cancer CenterHarvard Medical SchoolBoston, Massachusetts Resources:To access the patient cases associated with this podcast discussion, please visit the program page and register for an upcoming webinar on this topic.

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S12 Ep19: FDA Approval Insights: T-DXd in HER2-Low/-Ultralow Metastatic Breast Cancer: With Aditya Bardia, MD, MPH, FASCO

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Play Episode Listen Later Feb 27, 2025 7:20

In today's episode, we had the pleasure of speaking with Aditya Bardia, MD, MPH, FASCO, about the FDA approval of fam-trastuzumab deruxtecan-nxki (T-DXd; Enhertu) for the treatment of adult patients with unresectable or metastatic, hormone receptor–positive, HER2-low or -ultralow breast cancer, as determined by an FDA-approved test, that has progressed on at least 1 endocrine therapy in the metastatic setting. Dr Bardia serves as a professor in the Department of Medicine in the Division of Hematology/Oncology and is the director of Translational Research Integration at the UCLA Health Jonsson Comprehensive Cancer Center. In our exclusive interview, Dr Bardia discussed the significance of this approval, findings from the pivotal DESTINY-Breast06 trial (NCT04494425), and what this new indication for T-DXd means for the future of HER2 testing in breast cancer.

How to Treat Hormone Receptor Positive Cancer - Latest Advancements and Current Standard of Care in 2025

Play Episode Listen Later Feb 24, 2025 20:56

Welcome to the Oncology Brothers podcast! In this episode, Drs. Rahul and Rohit Gosain are joined by Dr. Kevin Kalinsky, a leading breast medical oncologist and director of the breast cancer program at the Winship Cancer Institute of Emory University. Join us as we dive deep into the complexities of hormone receptor-positive breast cancer treatment. We discuss the latest advancements in treatment algorithms, including the use of OncotypeDX in premenopausal versus postmenopausal women, the role of ovarian function suppression, and the implications of new approvals like Inavolisib and CDK4-6 inhibitors. Key topics covered in this episode: •⁠ ⁠The significance of recurrence scores in dictating adjuvant chemotherapy •⁠ ⁠The ongoing OFSET trial and its potential impact on treatment decisions •⁠ ⁠Insights into the use of genomic assays like MammaPrint and RS-Clin •⁠ ⁠The evolving landscape of treatment options for locally advanced and metastatic breast cancer •⁠ ⁠The latest on PARP inhibitors, T-DXd, and other novel therapies Whether you're a medical professional or someone interested in the latest in oncology, this episode is packed with valuable insights and clinical pearls. Don't forget to subscribe for more discussions on cancer treatment, FDA approvals, and conference highlights! YouTube: https://youtu.be/_icBN3J3Bc0 Follow us on social media: •⁠ ⁠X/Twitter: https://twitter.com/oncbrothers •⁠ ⁠Instagram: https://www.instagram.com/oncbrothers #OncologyBrothers #HR+ #breastcancer #HormoneReceptorPositiveCancer #oncbrothers #Podcast

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How to Treat HER2+ Breast Cancer - Discussion with Dr. Sarah Sammons

Play Episode Listen Later Feb 17, 2025 22:39

In this episode of the Oncology Brothers podcast, Drs. Rohit and Rahul Gosain welcome Dr. Sarah Sammons from Dana-Farber Cancer Institute to discuss the treatment landscape for HER2-positive breast cancer. Building on their previous discussions about triple-negative breast cancer, Drs. Gosain and Sammons dive deep into the treatment algorithms for early-stage, locally advanced, and metastatic HER2-positive breast cancer. Key topics include: •⁠ ⁠Treatment paradigms for early-stage HER2-positive breast cancer, including the APT trial and considerations for neoadjuvant therapy. •⁠ ⁠The standard of care for locally advanced disease with TCHP and managing associated toxicities. •⁠ ⁠Insights into the latest data from the PATINA trial and its implications for metastatic HER2-positive patients. •⁠ ⁠Discussion on the use of T-DXd and other treatment options in the second and third-line settings, especially for patients with brain metastases. Join us for an informative conversation filled with clinical pearls and practical insights that can help guide treatment decisions in HER2-positive breast cancer. Don't forget to like, subscribe, and check out our other episodes in the treatment algorithm series! #OncologyBrothers #HER2Positive #BreastCancer #BreastCancerTreatment #CancerPodcast #DanaFarber YouTube: https://youtu.be/_y0xSxJTptw Follow us on social media: •⁠ ⁠X/Twitter: https://twitter.com/oncbrothers •⁠ ⁠Instagram: https://www.instagram.com/oncbrothers

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HER2-Low and HER2-Ultralow Breast Cancer — A Roundtable Discussion on Current and Future Management Strategies

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Play Episode Listen Later Feb 14, 2025 121:57

Featuring slide presentations and related discussion from Dr Joyce O'Shaughnessy, Dr Mark Pegram and Prof Peter Schmid, including the following topics: Strategies to Identify Patients with HER2-Low and HER2-Ultralow Breast Cancer (0:00) Case: A woman in her mid 50s initially presenting with ER-positive, HER2 IHC 1+ locally advanced breast cancer who experiences progression to HER2 0 metastatic disease (20:53) Case: A woman in her early 60s with ER-positive, HER2 IHC 1+ metastatic breast cancer (mBC) who experiences disease progression 8 months after starting first-line CDK4/6 and aromatase inhibitor (29:14) Expanding the Spectrum of Targeted Therapy (38:52) Case: A woman in her early 60s with HR-positive, HER2 IHC 1+ mBC who receives fifth-line T-DXd resulting in stable disease (1:04:13) Case: A woman in her early 50s with progressive HR-positive, HER2 IHC 0 mBC and an ESR1 mutation who has ultralow HER2 expression on rebiopsy of new liver lesions (1:12:35) Identification and Management of Adverse Events with T-DXd (1:20:27) Case: A woman in her late 40s with HR-positive, HER2 IHC 2+ mBC who experienced persistent low-grade nausea with T-DXd that resolved with olanzapine (1:34:02) Case: A woman in her early 60s with ER-positive, HER2 2+ mBC who received T-DXd resulting in fatigue and asymptomatic interstitial lung disease (1:48:58) CME information and select publications

How to Treat Triple Negative Breast Cancer - Discussion with Dr. Virginia Kaklamani

Play Episode Listen Later Feb 10, 2025 16:50

Welcome to the Oncology Brothers podcast! In this episode, hosts Drs. Rahul and Rohit Gosain are joined by Dr. Virginia Kaklamani from the UTHealth San Antonio MD Anderson Cancer Center to discuss the latest advances in the treatment of triple negative breast cancer (TNBC) as we kick off 2025. •⁠ ⁠The treatment paradigms for early-stage TNBC, including the role Sacituzumab and radiation therapy. •⁠ ⁠Insights from the SABCS 2024 conference, focusing on the keynote 522 regimen and its implications for neoadjuvant treatment. •⁠ ⁠The management of locally advanced and metastatic TNBC, including the use of immunotherapy and the importance of PD-L1 testing. •⁠ ⁠Strategies for managing toxicities associated with treatments like sacituzumab and T-DXd. Whether you're a healthcare professional or someone interested in the latest in oncology, this episode provides valuable insights into the evolving landscape of breast cancer treatment. Don't forget to like, subscribe, and hit the notification bell for more updates from the Oncology Brothers! Key Takeaways: •⁠ ⁠Current standard of care for locally advanced TNBC. •⁠ ⁠The significance of chemotherapy and immunotherapy in treatment plans. •⁠ ⁠Managing toxicities in metastatic disease. Stay tuned for more discussions on treatment algorithms, FDA approvals, and clinical pearls in oncology! YouTube: https://youtu.be/GfROoYPVb_8 Follow us on social media: •⁠ ⁠X/Twitter: https://twitter.com/oncbrothers •⁠ ⁠Instagram: https://www.instagram.com/oncbrothers

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SABCS 2024 Highlights - DESTINY-Breast06, DESTINY-Breast12, PATINA with Dr. Sara Tolaney

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Play Episode Listen Later Jan 17, 2025 23:36

Join us for another insightful episode of the Oncology Brothers podcast as we dive into the latest breakthroughs in breast cancer research from the San Antonio Breast Cancer Symposium 2024. In this episode, hosts Drs. Rahul and Rohit Gosain are joined by Dr. Sara Tolaney from Dana-Farber Cancer Institute to discuss three pivotal studies: 1.⁠ ⁠DESTINY-Breast06 - An update on the efficacy of T-DXd in HER2 low and ultra-low breast cancer patients, highlighting its potential to change treatment paradigms for endocrine refractory disease. 2.⁠ ⁠DESTINY-Breast12 - Exploring the robust intracranial activity of T-DXd in patients with brain metastases and its impact on quality of life. 3.⁠ ⁠PATINA Trial - A groundbreaking study on the use of CDK4-6 inhibitors in combination with trastuzumab and pertuzumab for ER-positive, HER2-positive breast cancer, showcasing impressive progression-free survival rates. Tune in as we unpack the implications of these studies for clinical practice and discuss the future of breast cancer treatment. Don't forget to like, subscribe, and hit the notification bell for more updates on oncology research and treatment strategies! Follow us on social media: •⁠ ⁠X/Twitter: https://twitter.com/oncbrothers •⁠ ⁠Instagram: https://www.instagram.com/oncbrothers For more information, visit our website: OncologyBrothers.com #OncologyBrothers #BreastCancer #SABCS2024 #TDXD #PATINA #CancerResearch #Podcast

S1 Ep144: SABCS 2024 Data Show ‘Great Steps Forward' in Breast Cancer Care

Play Episode Listen Later Jan 13, 2025 41:02

Following the 2024 San Antonio Breast Cancer Symposium (SABCS), Paolo Tarantino, MD, and Matteo Lambertini, MD, PhD, co-hosted a live X Space with CancerNetwork® and spoke about updated trial findings that may impact the breast cancer treatment paradigm. Tarantino is a clinical research fellow at Dana-Farber Cancer Institute and Harvard Medical School. Lambertini is an associate professor and consultant in medical oncology at the University of Genova – IRCCS Policlinico San Martino Hospital in Genova, Italy. Tarantino and Lambertini highlighted data from various studies that investigators presented at the Symposium, which included results on the use of treatment modalities such as antibody drug conjugates and CDK4/6 inhibitors. Some presentations of interest included the following: · Phase 3 DESTINY-Breast06 Trial (NCT04494425) o Patients with hormone receptor (HR)–positive, HER2-low or HER2-ultralow metastatic breast cancer were assigned to receive fam-trastuzumab deruxtecan-nxki (T-DXd; Enhertu) or physician's choice of therapy. o Treatment with T-DXd improved progression-free survival (PFS) among patients with a time to progression on frontline endocrine therapy of less than 6 months (HR, 0.38; 95% CI, 0.25-0.59), 6 to 12 months (HR, 0.69; 95% CI, 0.43-1.12), and more than 12 months (HR, 0.67; 95% CI, 0.51-0.88). o PFS improved with T-DXd regardless of disease burden. · Phase 3 EMBER-3 Trial (NCT04975308) o Investigators evaluated 3 treatment arms—imlunestrant (LY3484356) monotherapy, fulvestrant (Faslodex) or exemestane (Aromasin), and imlunestrant in combination with abemaciclib (Verzenio)—among patients with estrogen receptor (ER)–positive, HER2-negative advanced breast cancer. o Across the overall population, imlunestrant monotherapy improved PFS compared with standard endocrine therapy (HR, 0.87; 95% CI, 0.72-1.04; P = .12). o Imlunestrant plus abemaciclib also showed a PFS improvement vs endocrine therapy across the overall population (HR, 0.57; 95% CI, 0.44-0.73; P

S11 Ep48: DESTINY-Breast06 Data Demonstrate the Role of T-DXd in HER2-Low and -Ultralow Breast Cancer: With Chandler Park, MD; and Guiseppe Curigliano, MD, PhD

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Play Episode Listen Later Jan 1, 2025 18:33

In this episode of Oncology Unplugged, a podcast series from MedNews Week, host Chandler Park, MD, a medical oncologist at the Norton Cancer Institute in Louisville, Kentucky, was joined by Guiseppe Curigliano, MD, PhD, a full professor of medical oncology at the University of Milan, as well as the director of the Early Drug Development Division and co-chair for the Experimental Therapeutics Program at the European Institute of Oncology in Italy. In this exclusive interview, Drs Park and Curigliano discussed the potential future role of artificial intelligence across oncology disciplines; how advances in precision medicine will help improve patient care; the significance of seeing early research with fam-trastuzumab deruxtecan-nxki (T-DXd; Enhertu) evolve into the present era, where the agent is FDA approved for the treatment of patients with HER2-positive solid tumors. They also discussed their insights on data from the phase 3 DESTINY-Breast06 trial (NCT04494425) investigating T-DXd in patients with HER2-low or -ultralow, hormone receptor–positive, metastatic breast cancer.

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Enhertu for HER2-Low and -Ultralow Metastatic Breast Cancer

Breastcancer.org Podcast

Play Episode Listen Later Dec 12, 2024 7:16

At the 2024 San Antonio Breast Cancer Symposium, Dr. Aditya Bardia, director of the Breast Oncology Program and Translational Research Integration at the UCLA Health Jonsson Comprehensive Cancer Center, presented results from the DESTINY-Breast06 study, showing that Enhertu (chemical name: fam-trastuzumab deruxtecan-nxki), also called T-DXd, was better than chemotherapy for metastatic, hormone receptor-positive, HER2-low or -ultralow breast cancer that grew after one or more hormonal therapy medicines. Listen to the episode to hear Dr. Bardia explain: results of the study what HER2-low and -ultralow breast cancer is whether people diagnosed with metastatic hormone receptor-positive, HER2-negative breast cancer should have additional HER2 testing

S11 Ep40: T-DXd Steadily Transforms the NSCLC Treatment Paradigm: With Misako Nagasaka, MD, PhD

Play Episode Listen Later Dec 10, 2024 10:29

In today's episode, supported by Daiichi Sankyo, we had the pleasure of speaking with Misako Nagasaka, MD, PhD, about the use of fam-trastuzumab deruxtecan-nxki (T-DXd; Enhertu) in patients with non–small cell lung cancer (NSCLC). Dr Nagasaka is an associate professor in the Division of Hematology and Oncology and the Division of Medicine at the University of California Irvine School of Medicine. In our exclusive interview, Dr Nagasaka discussed key findings from the phase 2 DESTINY-PanTumor02 (NCT04482309) and DESTINY-Lung01 (NCT03505710) trials that led to the FDA approval of T-DXd for patients with unresectable or metastatic HER2-positive solid tumors, including those with NSCLC; where next-generation sequencing fits into her clinical practice; and the current role of T-DXd in lung cancer management.

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S11 Ep37: Trastuzumab Deruxtecan Advances HER2+ Gynecologic Cancer Care: With Susana M. Campos, MD, MPH

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Play Episode Listen Later Nov 21, 2024 7:59

OncLive On Air is a podcast from OncLive®, which provides oncology professionals with the resources and information they need to provide the best patient care. In both digital and print formats, OncLive covers every angle of oncology practice, from new technology to treatment advances to important regulatory decisions. In today's episode, we had the pleasure of speaking with Susana M. Campos, MD, MPH, about the role of fam-trastuzumab deruxtecan-nxki (T-DXd; Enhertu) in patients with HER2-positive gynecologic cancers. Dr Campos is the clinical director and the director of Educational Initiatives in the Division of Gynecologic Oncology at Dana-Farber Cancer Institute, as well as an assistant professor of medicine at Harvard Medical School in Boston, Massachusetts. In our exclusive interview, Dr Campos discussed the clinical implications of findings from the gynecologic cancer cohorts of the phase 2 DESTINY-PanTumor02 trial (NCT04482309).

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What is the latest on Cloud-Based AI Endoscopy?

PVRoundup Podcast

Play Episode Listen Later Sep 19, 2024 5:21

Our first story highlights Odin Medical's FDA clearance for a cloud-based AI tool for detecting colorectal polyps during colonoscopies. The second story addresses updated estimates of atrial fibrillation (AF) prevalence in the U.S., revealing a significant increase in diagnosed cases, especially among younger, hypertensive, and diabetic patients. Finally, we explore new data on the the efficacy of Trastuzumab deruxtecan (T-DXd) in treating HER2+ metastatic breast cancer.

Breast Cancer | Oncology Today with Dr Neil Love: Integrating Antibody-Drug Conjugates into the Management of HR-Positive and Triple-Negative Metastatic Breast Cancer

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Play Episode Listen Later Aug 16, 2024 54:03

Featuring perspectives from Dr Sara A Hurvitz, including the following topics: Case: A woman in her late 40s who received treatment for triple-negative breast cancer develops lung metastases 2 years later (0:00) Clinical trials investigating TROP2-targeting antibody-drug conjugates (13:28) Identifying and targeting HER2 in HER2 low-expressing disease (21:17) Case: A woman in her early 50s who received treatment for Stage I breast cancer later develops multiple lesions similar to the original cancer (29:00) Thresholds of HER2 expression and the efficacy of trastuzumab deruxtecan (T-DXd) (34:01) Case: A woman in her late 50s receiving T-DXd for HER2-low metastatic breast cancer develops asymptomatic ground glass infiltrates in the lung (39:19) Novel ADC strategies under investigation (48:22) CME information and select publications

DESTINY-Breast06 and A-BRAVE: Advances in Breast Cancer Research

Play Episode Listen Later Aug 8, 2024 15:12

Dr. Allison Zibelli and Dr. Erika Hamilton discuss the results of the DESTINY-Breast06 trial in HR+, HER2-low and HER2-ultralow metastatic breast cancer and the A-BRAVE trial in early triple-negative breast cancer, the results of which were both presented at the 2024 ASCO Annual Meeting. TRANSCRIPT Dr. Allison Zibelli: Hello, I'm Dr. Allison Zibelli, your guest host of the ASCO Daily News Podcast. I'm an associate professor of medicine and breast medical oncologist at the Sidney Kimmel Cancer Center of Jefferson Health in Philadelphia. My guest today is Dr. Erika Hamilton, a medical oncologist and director of breast cancer research at the Sarah Cannon Research Institute. We'll be discussing the DESTINY-Breast06 trial, which showed a progression-free advantage with the antibody-drug conjugate trastuzumab deruxtecan (T-DXd) compared to chemotherapy in hormone receptor-positive HER2-low or HER2-ultralow metastatic breast cancer. We'll address the implications of this study for the community, including the importance of expanding pathology assessments to include all established subgroups with HER2 expression, and the promise of expanding eligibility for antibody-drug conjugates. We'll also highlight advances in triple-negative breast cancer, focusing on the A-BRAVE trial, the first study reporting data on an immune checkpoint inhibitor avelumab in patients with triple-negative breast cancer with invasive residual disease after neoadjuvant chemotherapy. Our full disclosures are available in the transcript of this episode. Erika, it's great to have you on the podcast today. Dr. Erika Hamilton: Thanks so much, Allison. Happy to join. Dr. Allison Zibelli: Antibody-drug conjugates are rapidly changing the treatment landscape in breast cancer. The data from the DESTINY-Breast06 trial suggests that trastuzumab deruxtecan may become a preferred first-line treatment option for most patients with HER2-low or HER2-ultralow metastatic breast cancer after progression on endocrine therapy. First, could you remind our listeners, what's the definition of HER2-ultralow and what were the findings of this trial? Dr. Erika Hamilton: Yeah, those are fantastic questions. Ultralow really has never been talked about before. Ultralow is part of a subset of the IHC zeros. So it's those patients that have HER2-tumor staining that's less than 10% and incomplete but isn't absolutely zero. It's even below that +1 or +2 IHC that we have classified as HER2-low. Now, I think what's important to remember about D-B06, if you recall, D-B04 (DESTINY-Breast04) was our trial looking at HER2-low, is that D-B06 now included HER2-low as well as this HER2-ultralow category that you asked about. And it also moved trastuzumab deruxtecan up into the frontline. If you recall, D-B04 was after 1 line of cytotoxic therapy. So now this is really after exhausting endocrine therapy before patients have received other chemotherapy. And what we saw was an improvement in progression-free survival that was pretty significant: 13.2 months versus 8.1 months, it was a hazard ratio of 0.62. And you can ask yourself, “well, was it mainly those HER2-low patients that kind of drove that benefit? What about the ultralow category?” And when we look at ultralow, it was no different: 13.2 months versus 8.3 months, hazard ratio, again, highly significant. So I think it's really encouraging data and gives us some information about using this drug earlier for our patients with hormone receptor-positive but HER2-negative disease. Dr. Allison Zibelli: I thought this study was really interesting because it's a patient population that I find very difficult to treat, the hormone receptor-positive metastatic patient that's not responding to endocrine therapy anymore. But it's important to mention that T-DXd resulted in more serious toxicities compared to traditional chemotherapy in this study. So how do you choose which patients to offer this to? Dr. Erika Hamilton: Yeah, those are both great points. So you're right, this is after endocrine therapy. And in fact, about 85% of these patients had received at least 2 prior lines of endocrine therapy. So I have some people kind of asking, “Well, if endocrine therapy really isn't benefiting everyone in the second-line setting post-CDK, should we just move to the ADCs?” And, no, probably we should really make sure that we're exhausting endocrine therapies for those patients that are going to benefit. And once we determine somebody has endocrine-resistant disease, that's when we would think about switching. In terms of the side effects, I think you're right. It's mainly ILD that's probably the more serious side effect that we worry about a little bit with trastuzumab deruxtecan. The good news is, through multiple trials, we've gotten a little bit better at managing this. We've pretty much all but eliminated any fatal cases of ILD, definitely less than 1% now. ILD rates, depending on what study you look for, kind of ranges in that 10% to 15% range. Any grade ILD on D-B06 was 11.3%. So really kind of making sure that we look for ILD at scans, making sure that patients are educated to tell us about any new pulmonary symptoms: cough, exertional dyspnea, shortness of breath at rest, etc. But I think the most common side effects that we really deal with on a daily basis with trastuzumab deruxtecan, luckily, is nausea, which we've gotten better at managing with the 2- or 3-drug antiemetic regimen, and probably a little bit of fatigue as well. Dr. Allison Zibelli: Thank you. So, I think for most people in the community, the sticking point here will be expanding pathology assessments to include all of the subgroups, including the ultralow. Most patients in the community are not testing for HER2-low and HER2-ultralow now. Dr. Erika Hamilton: Historically, we kind of all did HER2 IHC, right? And then as FISH became available, there were a lot of institutions that moved to FISH and maybe didn't have IHC anymore. And now, at least in my institution, we do both. But I think it's a very important point that you made that IHC was really designed to pick out those patients that have HER2-high, the 3 pluses or the FISH amplified cases. It was not to tell the difference between a 1+ or a 2+ or a 0 that's not quite a 0 and a 1+. So I think you're right. I think this is tough. I probably have a little bit more of an interesting take on this than some people will. But data from ASCO, not this year but in 2023, there was actually a pretty eloquent study presented where they looked at serial biopsies in patients, and essentially, if you got up to 4 or 5 biopsies, you were guaranteed to have a HER2-low result. Now, this didn't even include ultralow, which is even easier. If we know we include ultralow, we're really talking about probably 85% to 90% of our patients now that have some HER2 expression. But if we biopsy enough, we're guaranteed to get a HER2 low. And so I think the question really is, if we know IHC wasn't really designed to pick out these ultralows, and we know kind of greater than 90% of patients are going to have some expression, did we kind of develop this drug a little bit backwards? Because we thought we understood HER2, and the reality is this drug is a little bit more like a sacituzumab govitecan, where we don't test for the TROP2. Should we really be kind of serial biopsying these patients or should maybe most patients have access to at least trying this drug? Dr. Allison Zibelli: So I don't think that most of my patients will really be happy to sign up for serial biopsies. Dr. Erika Hamilton: Agreed. Dr. Allison Zibelli: Do we have any emerging technologies for detecting low levels of HER2? You talked about how the IHC test isn't really designed to detect low levels of HER2. Do you think newer detection techniques such as immunofluorescence will make a difference, or will we have liquid biopsy testing for this? Dr. Erika Hamilton: Yeah, I think liquid biopsy may be a little bit hard, just because some of those circulating tumor cells are more of a mesenchymal-type phenotype and don't necessarily express all of the same receptors. Normally, if they're cytokeratin-positive, they do, but certainly there is a lot out there looking at more sensitive measures. You mentioned immunofluorescence, there are some even more quantitative measures looking at lower levels of HER2. I definitely think there will be. I guess, ultimately, with even the IHC zeros that are the less than 10% incomplete staining, having a PFS that was absolutely no different than the HER2 low, I guess the question is, how low can we really go? We know that even the IHC zeros doesn't mean that there's no HER2 expression on the cell surface. It just means that maybe there's a couple of thousand as opposed to 10,000 or 100,000 copies of HER2. And so it really appears that perhaps this drug really is wedded to having a lot of HER2 expression. So ultimately, I wonder how much we're going to have to use those tests, especially with what we know about tumor heterogeneity. We know that if we biopsy 1 lesion in the liver, biopsy a lymph node, or even another lesion in the liver, that the HER2 results can have some heterogeneity. And so ultimately, my guess is that most people have some HER2 expression on their breast cancer cells. Dr. Allison Zibelli: So maybe we're going to be using this for everybody in the future. Dr. Erika Hamilton: It certainly seems like we keep peeling back the onion and including more and more patients into the category that are eligible to receive this. I agree. Dr. Allison Zibelli: Let's move on to triple-negative breast cancer, namely the A-BRAVE trial. This was an interesting trial for patients that did not get neoadjuvant immunotherapy and testing 2 groups. The first group was those with residual disease after neoadjuvant conventional chemotherapy. The second group was people with high-risk disease identified upfront that had upfront surgery. The study found that adjuvant avelumab did not improve disease-free survival versus observation, which was the study's primary endpoint. But interestingly, there was a significant improvement in 3-year overall survival and distant disease-free survival. Can you give us your thoughts on that? Dr. Erika Hamilton: Yeah, I think this study was really interesting. Right now, the standard for our patients with larger or node-positive triple-negative cancers is KEYNOTE-522. It's a pretty tough regimen. It's kind of 2 sequential uses of 2 chemotherapies, so 4 chemotherapy agents total with pembrolizumab. But you're right, this study looked at those that had residual disease after neoadjuvant that didn't include immunotherapy, or those patients that didn't get neoadjuvant therapy, went to surgery, and then were receiving chemotherapy on the back end. I'm going to give you the numbers, because you're right. The 3-year disease-free survival rates were not statistically significant. It was 68.3% among those that had avelumab, 63.2% with those that had observation only. So the difference was 5.1% in favor of avelumab, but it wasn't statistically significant. A p value of 0.1, essentially. But when we looked at the 3-year overall survival rates, we saw the same pattern, those patients with the avelumab doing better, but it was 84.8% overall survival and not, unfortunately, dying, versus 76.3%. So the magnitude of benefit there was 8.5%, so about 3% higher than we saw for disease-free survival, and this was statistically significant. So is this going to change practice for most patients? I probably don't think so. I think for our patients that have larger tumors that's recognized upfront or have node positivity, we're probably going to want to use neoadjuvant chemo. Being able to get a PCR is very prognostic for our patients and enables us to offer things on the back end, such as PARP inhibitors or further chemotherapy of a different type of chemotherapy. But for our patients that go to surgery and maybe the extent of their disease just isn't recognized initially, this could be an option. Dr. Allison Zibelli: I agree. I think this will be a really useful regimen for patients where we get the surprise lymph node that we weren't expecting, or somebody who comes to us, maybe without seeing the medical oncologist, who got upfront surgery. So I thought this was really interesting. What kind of translational studies do you think we're going to do to try and understand which patients would benefit from avelumab? Dr. Erika Hamilton: Yeah, I think that's a great question, and honestly, it's a question that we haven't really answered in the neoadjuvant setting either. Immunotherapy in breast cancer is just a little bit different than it is in some other diseases. We have a benefit for those patients that are PD-L1 positive in the first line. We really haven't seen benefit for metastatic outside of first line. And then in neoadjuvant, it was among all comers. We don't have to test for PD-L1. And now we have this avelumab data from A-BRAVE. I think the question is, is there's probably a subset of patients that are really getting benefit and a subset that aren't. And I don't know that PD-L1 testing is the right test. We know a lot of people are looking at TILs, so kind of lymphocytes that are infiltrating the tumor, a variety of other kind of immunologic markers. But my guess is that eventually we're going to get smart enough to tease out who actually needs the immunotherapy versus who isn't going to benefit. But we're not quite there yet. Dr. Allison Zibelli: Thank you, Erika, for sharing your valuable insights with us on the ASCO Daily News Podcast today. Dr. Erika Hamilton: Thanks so much for having me. Dr. Allison Zibelli: And thank you to our listeners for joining us. You'll find the links to all the abstracts discussed today in the transcript of this episode. Finally, if you like this podcast and you value our insights, please take a moment to rate, review, and subscribe wherever you get your podcasts. It really helps other people to find us. So thank you very much for listening today. Disclaimer: The purpose of this podcast is to educate and to inform. This is not a substitute for professional medical care and is not intended for use in the diagnosis or treatment of individual conditions. Guests on this podcast express their own opinions, experience, and conclusions. Guest statements on the podcast do not express the opinions of ASCO. The mention of any product, service, organization, activity, or therapy should not be construed as an ASCO endorsement. Find out more about today's speakers: Dr. Allison Zibelli Dr. Erika Hamilton @ErikaHamilton9 Follow ASCO on social media: @ASCO on Twitter   ASCO on Facebook   ASCO on LinkedIn   Disclosures: Dr. Allison Zibelli: None Disclosed Dr. Erika Hamilton: Consulting or Advisory Role (Inst): Pfizer, Genentech/Roche, Lilly, Daiichi Sankyo, Mersana, AstraZeneca, Novartis, Ellipses Pharma, Olema Pharmaceuticals, Stemline Therapeutics, Tubulis, Verascity Science, Theratechnologies, Accutar Biotechnology, Entos, Fosun Pharma, Gilead Sciences, Jazz Pharmaceuticals, Medical Pharma Services, Hosun Pharma, Zentalis Pharmaceuticals, Jefferies, Tempus Labs, Arvinas, Circle Pharma, Janssen, Johnson and Johnson Research Funding (Inst): AstraZeneca, Hutchison MediPharma, OncoMed, MedImmune, Stem CentRx, Genentech/Roche, Curis, Verastem, Zymeworks, Syndax, Lycera, Rgenix, Novartis, Millenium, TapImmune, Inc., Lilly, Pfizer, Lilly, Pfizer, Tesaro, Boehringer Ingelheim, H3 Biomedicine, Radius Health, Acerta Pharma, Macrogenics, Abbvie, Immunomedics, Fujifilm, eFFECTOR Therapeutics, Merus, Nucana, Regeneron, Leap Therapeutics, Taiho Pharmaceuticals, EMD Serono, Daiichi Sankyo, ArQule, Syros Pharmaceuticals, Clovis Oncology, CytomX Therapeutics, InventisBio, Deciphera, Sermonix Pharmaceuticals, Zenith Epigentics, Arvinas, Harpoon, Black Diamond, Orinove, Molecular Templates, Seattle Genetics, Compugen, GI Therapeutics, Karyopharm Therapeutics, Dana-Farber Cancer Hospital, Shattuck Labs, PharmaMar, Olema Pharmaceuticals, Immunogen, Plexxikon, Amgen, Akesobio Australia, ADC Therapeutics, AtlasMedx, Aravive, Ellipses Pharma, Incyte, MabSpace Biosciences, ORIC Pharmaceuticals, Pieris Pharmaceuticals, Pieris Pharmaceuticals, Pionyr, Repetoire Immune Medicines, Treadwell Therapeutics, Accutar Biotech, Artios, Bliss Biopharmaceutical, Cascadian Therapeutics, Dantari, Duality Biologics, Elucida Oncology, Infinity Pharmaceuticals, Relay Therapeutics, Tolmar, Torque, BeiGene, Context Therapeutics, K-Group Beta, Kind Pharmaceuticals, Loxo Oncology, Oncothyreon, Orum Therapeutics, Prelude Therapeutics, Profound Bio, Cullinan Oncology, Bristol-Myers Squib, Eisai, Fochon Pharmaceuticals, Gilead Sciences, Inspirna, Myriad Genetics, Silverback Therapeutics, Stemline Therapeutics

philadelphia fish brave pfizer keynote advances astrazeneca pcr janssen novartis millenium immunotherapy asco torque amgen jefferies black diamond fujifilm abbvie regeneron harpoon her2 pfs boehringer ingelheim gilead sciences parp cdk adcs breast cancer research pd l1 ihc ild curis jefferson health eisai tils asco annual meeting daiichi sankyo jazz pharmaceuticals myriad genetics incyte emd serono medimmune seattle genetics artios pharmamar erika hamilton t dxd sidney kimmel cancer center compugen tesaro arvinas transcript dr inspirna arqule sermonix pharmaceuticals syros pharmaceuticals effector therapeutics acerta pharma

Chairperson Perspective: Precision Payloads: Exploring ADC-Directed Therapies in HER2-Mutant and Overexpressing Lung Cancer

ReachMD CME

Play Episode Listen Later Jul 19, 2024

CME credits: 0.50 Valid until: 19-07-2025 Claim your CME credit at https://reachmd.com/programs/cme/chairperson-perspective-precision-payloads-exploring-adc-directed-therapies-in-her2-mutant-and-overexpressing-lung-cancer/16609/ Alterations in ERBB2, the gene encoding HER2, have been recognized as drivers in the development of NSCLC. Therefore, HER2 is an actionable biomarker that has emerged in NSCLC diagnosis and treatment. HER2 mutations activate the HER2 signaling pathway, which facilitates oncogenic transformation and increases tumor proliferation. Although practice guidelines recommend molecular testing to identify alterations, the interpretation of tests and application of testing results to treatment decisions remain areas of educational need. Despite HER2 testing and targeted therapies changing the treatment practices for other solid tumors, the previous standard of care for NSCLC has resulted in persistently low 5-year survival rates in contrast to the high rates of survival for breast cancer. However, successful targeting of HER2-activating mutations in advanced NSCLC has now been achieved through the use of antibody-drug conjugates (ADCs) such as trastuzumab deruxtecan (T-DXd). By effectively targeting HER2-activating mutations, ADCs have emerged as a promising treatment approach for advanced NSCLC. In this educational activity, the expert faculty Chairperson will summarize relevant and timely information on NSCLC with HER2-mutant or overexpressing alterations and highlight the use of HER2-directed ADCs in NSCLC. The Chairperson will also provide their perspectives on the top key takeaways and why they are …=

directed precision mutant chairperson therapies cme lung cancer rmd alterations her2 nsclc adcs reachmd cme/ce oncology and hematology erbb2 t dxd axis medical education

HER2-low and HER2-zero in Breast Cancer Between Prognosis, Prediction and Entity

Oncotarget

Play Episode Listen Later Jul 16, 2024 2:41

BUFFALO, NY- July 16, 2024 – A new #editorial paper was #published in Oncotarget's Volume 15 on June 20, 2024, entitled, “HER2-low and HER2-zero in breast cancer between prognosis, prediction and entity.” In this new editorial, researchers Marcus Schmidt, Hans-Anton Lehr, and Katrin Almstedt from the University Medical Center of Johannes Gutenberg University discuss HER2 in breast cancer. HER2 is a well-established prognostic and predictive factor in breast cancer, which is associated with a poor prognosis but also offers the chance of improved survival when treated with targeted therapies based on the monoclonal antibody trastuzumab, both in advanced (hazard ratio (HR) 0.82, 95% confidence interval (CI) 0.71 to 0.94, P = 0.004) and in early (HR 0.66, 95% CI 0.57 to 0.77, P < 0.00001) stages. The American Society of Clinical Oncology (ASCO)/College of American Pathologists (CAP) defines HER2-positivity as either 3+ by immunohistochemistry (IHC) or 2+ with amplification by in situ hybridization (ISH). Yet, the vast majority of breast tumors are considered HER2- negative (IHC 0 or 1+ or 2+ without amplification) by these criteria, and it has until recently been accepted that HER2-negative tumors do not benefit from trastuzumab based therapy. “Now, results of randomized trials with trastuzumab-based antibody-drug conjugates (ADCs) such as trastuzumab deruxtecan (T-DXd) have fundamentally challenged this long-held view.” DOI - https://doi.org/10.18632/oncotarget.28598 Correspondence to - Marcus Schmidt - marcus.schmidt@unimedizin-mainz.de Video short - https://www.youtube.com/watch?v=4ROlLZo82uY Sign up for free Altmetric alerts about this article - https://oncotarget.altmetric.com/details/email_updates?id=10.18632%2Foncotarget.28598 Subscribe for free publication alerts from Oncotarget - https://www.oncotarget.com/subscribe/ Keywords - cancer, breast cancer, HER2, HER2-low, prognostic, predictive About Oncotarget Oncotarget (a primarily oncology-focused, peer-reviewed, open access journal) aims to maximize research impact through insightful peer-review; eliminate borders between specialties by linking different fields of oncology, cancer research and biomedical sciences; and foster application of basic and clinical science. Oncotarget is indexed and archived by PubMed/Medline, PubMed Central, Scopus, EMBASE, META (Chan Zuckerberg Initiative) (2018-2022), and Dimensions (Digital Science). To learn more about Oncotarget, please visit https://www.oncotarget.com and connect with us: Facebook - https://www.facebook.com/Oncotarget/ X - https://twitter.com/oncotarget Instagram - https://www.instagram.com/oncotargetjrnl/ YouTube - https://www.youtube.com/@OncotargetJournal LinkedIn - https://www.linkedin.com/company/oncotarget Pinterest - https://www.pinterest.com/oncotarget/ Reddit - https://www.reddit.com/user/Oncotarget/ Spotify - https://open.spotify.com/show/0gRwT6BqYWJzxzmjPJwtVh MEDIA@IMPACTJOURNALS.COM

predictions reddit buffalo breast cancer american society entity doi ish prognosis her2 adcs ihc university medical center scopus altmetric t dxd embase oncotarget

Top ASCO24 Abstracts That Could Revolutionize Oncology

Play Episode Listen Later Jun 26, 2024 27:33

Drs. John Sweetenham and Angela DeMichele discuss potentially ground-breaking abstracts in breast and lung cancer as well as notable research on artificial intelligence and its impact on cancer care, all of which were featured at the 2024 ASCO Annual Meeting. TRANSCRIPT Dr. John Sweetenham: Hello, I'm Dr. John Sweetenham from UT Southwestern's Harold C. Simmons Comprehensive Cancer Center and host of the ASCO Daily News Podcast. My guest today is Dr. Angela DeMichele, the Marianne and Robert McDonald Professor in Breast Cancer Research and co-leader of the Breast Cancer Program at the University of Pennsylvania's Abramson Cancer Center. Dr. DeMichele also served as the chair of the 2024 ASCO Annual Meeting Scientific Program. Today, she'll be sharing her reflections on the Annual Meeting and we'll be highlighting some advances and innovations that are addressing unmet needs and accelerating progress in oncology. Our full disclosures are available in the transcript of this episode. Dr. DeMichele, congratulations on a very robust and highly successful program at ASCO24, and thanks for joining us on the podcast today. Dr. Angela DeMichele: Well, thanks so much for having me, Dr. Sweetenham. It's a pleasure to be here. Dr. John Sweetenham: The presidential theme of the Annual Meeting this year was the "The Art and Science of Cancer Care: From Comfort to Cure." And this was certainly reflected throughout the meeting in Chicago that welcomed more than 40,000 attendees from across the globe. I know our listeners will be interested to hear some of your own reflections from the meeting now that we're on the other side of it, so to spea Dr. Angela DeMichele: Yes. Well, I will say that playing this role in the annual meeting really was a highlight of my career, and I feel so fortunate to have had the opportunity to do it. We had over 200 sessions, and in many, if not all of these sessions, we really tried to make sure that there was a case that really sort of grounded the session to really help people understand: you're going to hear about science, but how are you going to apply that? Who is the patient for whom this science really is important? We had over 7,000 abstracts submitted, and our 25 tracks and their chairs really pulled through to find really the best science that we could present this year. I think what you saw really was a representation of that across the board: incredible advances in lung cancer, breast cancer, melanoma, GI cancers; also really cutting-edge technologies: AI, as we'll talk about in a little while circulating markers like ctDNA, new drug development, new classes of drugs. So it was really an exciting meeting. I mean, some highlights for me, I would say, were certainly the Plenary, and we can talk a little bit about that. Also, we had a fantastic ASCO/AACR Joint Session on “Drugging the “Undruggable Target: Successes, Challenges, and the Road Ahead.” And, if any of the listeners have not had a chance to hear this, it's really worth going in and watching this because it really brought together three amazing speakers who talked about the successes in KRAS, and then really, how are we using that success in learning how to target KRAS to now targeting a variety of other previously thought to be undruggable targets. I learned so much. And there's really both the academic and the pharma perspective there. So I'd really encourage watching this session. The other session that I really thought was terrific was one that I was honored to chair, which was a fireside chat (“How and Where Will Public Investment Accelerate Progress in Oncology? A Discussion with the NIH and NCI Directors”) with both Dr. Monica Bertagnolli, who is the director of the NIH, and Dr. Kim Rathmell, who's now the director of the NCI. And boy, I'll tell you, these two incredibly smart, thoughtful, insightful women; it was a great conversation. They were really understanding of the challenges we face conducting research, practicing medicine. And maybe different from leadership at the NIH in the past, they've really taken the approach to say that everything they do is focused on the patient, and they don't limit themselves to just research or just science, that everything that the NIH does, and particularly the NCI does, really has to be focused on making sure we can give patients the best possible care. And I think they're being very thoughtful about building important infrastructure that's going to take us into the future, incorporating AI, incorporating new clinical trial approaches that are going to make it faster and easier to conduct clinical trials and to get the results that we need sooner. So just a few of the highlights, I think, from some really interesting sessions. Dr. John Sweetenham: It certainly was an extremely enriching and impactful ASCO24. And I think that the overall theme of the meeting was extremely well reflected in the content with this amazing mix of really, truly impactful science, along with a great deal of patient-centered healthcare delivery science to accompany it. So, I completely agree with you about that. There was a lot, of course, to take in over the five days of the meeting, but I'm sure that our listeners would be very interested to hear about one or two abstracts that really stood out for you this year. Dr. Angela DeMichele: Sure. I'm a breast cancer specialist, so I can't help but feel that the late breaking abstract, the DESTINY-Breast06 trial, was really important for the field of breast cancer. So just briefly, this is a study of the antibody drug conjugate T-DxD, trastuzumab deruxtecan. This is a drug that is actually now approved in metastatic breast cancer, really effective in HER2-positive disease. But the question that this trial was trying to answer is, can this drug, which is built with the herceptin antibody against HER2, then linked to a chemotherapeutic molecule, can this work even in the setting of very, very low HER2 expression on a tumor? I think this is an incredibly important question in the field of antibody drug conjugates, of which there are now many across diseases, is how much of the target do you really need to have on the surface of the tumor? We had seen previously HER2 overexpressing tumors respond really well to this drug. HER2 tumors that have an intermediate level of expression were tested in the DP04 trial, and we saw that even those 2+ intermediate tumors responded well to this drug. The DP06 trial that was presented at ASCO was looking at this group of patients that have even less HER2 on the surface. So we typically measure HER2 by immunohistochemistry as 0, 1+, 2+, or 3+. And this was looking at patients whose tumors were over 0, but were at 1+ or below, so low and ultra-low. And it turned out that compared to treatment of physician's choice, the drug really had quite a lot of activity, even in these patients who have very little HER2 on their tumors, really showing progression-free survival benefits in the HER2-low and HER2-ultra-low groups that were appreciable on the order of about 5 months, additional progression free survival hazard ratios around 0.6, so really demonstrating that utilizing an antibody drug conjugate, where you've got very little target, can still be a way to get that drug to a tumor. And I think it'll remain to be seen whether other ADCs can have activity at very low levels of IHC expression of whatever target they're designed against. I think one of the tricky things here for implementing this in breast cancer will be how do pathologists actually identify the tumors that are ultra-low because it's not something that we typically do. And so we'll go through a period, I think, of adjustment here of really trying to understand how to measure this. And there are a bunch of new technologies that I think will do a better job of detecting low levels of the protein on the surface of the tumor because the current IHC test really isn't designed to do that. It was only designed to be focused on finding the tumors that had high levels. So we have some newer technologies with immunofluorescence, for example, that can really get down to very low levels. And I think this is going to be a whole new area of ADCs, target detection – how low can you go to still see activity? So I thought that this was an important abstract for many reasons. I will just say the second area that I was really particularly impressed with and had a big impact on me were the two lung cancer abstracts that were presented in the Plenary, the LAURA trial (LBA4) and the ADRIATIC trial (LBA5). And I think, I've been in the field of oncology for 30 years now, and when I started in the late ‘90s, lung cancer was a disease for which we had very few treatments. If we didn't catch it early and surgery wasn't possible for non-small cell lung cancer, really, it was a horrible prognosis. So we knew this year was the 20th anniversary of the discovery of EGFR as a subtype of lung cancer. That was really, I think, a turning point in the field of non-small cell lung cancer – finding a target. And now seeing the LAURA trial show that osimertinib really had such an enormous impact on progression-free survival amongst these patients who had EGFR-positive non-small cell lung cancer, progression-free survival hazard ratio of 0.16; there was a standing ovation. And one of the really big privileges of being the Scientific Program Chair is getting to moderate the Plenary Session, and it's a really amazing experience to be standing up there or sitting there while the presenter is getting a standing ovation. But this was well deserved because of the impact this is having on patients with EGFR positive lung cancer. And it was similar with the ADRIATIC trial, which looked at the benefits of adding immunotherapy in limited-stage small-cell lung cancer. Again, a disease that treatment has not changed in 30 years, and so the addition of durvalumab to the standard backbone of chemotherapy for small cell lung cancer had its survival advantage. These patients are living longer and it was really an impressive improvement. And I think it really underscores just the revolution that has happened in lung cancer between targeted therapy and immunotherapy has completely changed the prognosis for patients with this disease. So to me, these were really landmark reports that came out at ASCO that really showed us how far we've come in oncology. Dr. John Sweetenham: Yeah, absolutely. I think that, as you mentioned, those results are truly remarkable, and they reflect extraordinary advances in science. I think we see that both in terms of the therapeutic arena, but also, I think we've started to see it in other areas as well, like symptom control, remote patient monitoring, and so on and so forth, where some of the newer virtual technologies are really having major impacts as well. Dr. Angela DeMichele: Yes, we really wanted to have a focus on artificial intelligence in this meeting, because it's having such an enormous impact on our field in everything from care delivery to diagnostics. I'd love to hear what you thought was the most interesting, because there really was just new data across the board presented. Dr. John Sweetenham: I've actually chosen 3 abstracts which I thought were particularly interesting for a couple of reasons, really. They're all based on virtual health interventions, and I think they're interesting in really reflecting the theme of the meeting, in that they are extremely advanced technology involved in the virtual platforms, a couple of which are artificial intelligence, but very impactful to patients at the same time in terms of remote symptom control, in terms of addressing disparities, and in one case, even influencing survival. So I thought these were three really interesting abstracts that I'll walk the listeners through very quickly. The first of these was a study, Abstract 1500 (“National implementation of an AI-based virtual dietician for patients with cancer”) which looked at an artificial intelligence-based virtual dietitian for patients with cancer. This is based on the fact that we know nutritional status to be a key driver of patient experience and of cancer outcomes. And as the authors of the presentation noted, 80% of patients look for nutritional support, but many of them don't get it. And that's primarily a workforce issue. And I think that's an important thematic point as well, that these new technologies can help us to address some of the workforce issues we have in oncology. So this was an AI-based platform developed by experts in nutrition and cancer patients, based on peer reviewed literature, and a major effort in terms of getting all of these data up together. And they developed an artificial intelligence platform, which was predominantly text message based. And this platform was called INA. And as this is developing as a platform, there's a machine learning component to it as well. So in theory, it's going to get better and better and better over time. And what they did in their study was they looked at little over 3,000 patients across the entire country who were suffering from various types of cancer, GU, breast, gynecological malignancy, GI and lung. And most of them had advanced-stage disease, and many of them had nutritional challenges. For example, almost 60% of them were either overweight or obese by BMI. And the patients were entered into a text exchange with the AI platform, which would give them advice on what they should eat, what they shouldn't eat. It would push various guidance and tips to them, it would develop personalized recipes for them, and it would even develop menu plans for the patients. And what's really interesting about this is that the level of engagement from the patients was very high, with almost 70% of patients actually texting questions to this platform. About 80% of the patients completed all of the surveys, and the average time that patients interacted with the platform was almost nine months, so this was remarkable levels of engagement, high levels of patient satisfaction. And although at this point, I think it's very early and somewhat subjective, there was certainly a very positive kind of vibe from patients. Nearly 50% have used the recommended recipes. More than 80% of them thought that their symptoms improved while they were using this platform. So I think as a kind of an assistant for remote management of patients, it's really remarkable. And the fact that the level of engagement was so high also means that for those patients, it's been very impactful. The second one, this was Abstract 100 (“AI virtual patient navigation to promote re-engagement of U.S. inner city patients nonadherent with colonoscopy appointments: A quality improvement initiative”) looked again at an AI-based platform, which in this case was used in an underserved population to address healthcare disparities. This is a study from New York which was looking at colorectal cancer screening disparities amongst an underserved population, where historically they've used skilled patient navigators to address compliance with screening programs, in this case specifically for colorectal cancer. And they noticed in the background to this study that in their previous experience in 2022, almost 60% of patients either canceled or no-showed for colonoscopy appointments. And because of this and because of the high burden of patients that this group has, they decided to take an AI-based virtual patient navigator called MyEleanor and introduce this into their colorectal cancer screening quality improvement. And so they introduced this platform in April of 2023 through to the end of the year, and their plan was to target reengagements of around 2,500 patients who had been non adherent with colonoscopy appointments in a previous year. And so the platform MyEleanor would call the patients to discuss rescheduling, it would assess their barriers to uptake, it would offer live transfer to somebody to schedule for them, and then it would go on closer to the point of the colonoscopy to call the patients and give them advice about their prep. And it was very nuanced. The platform would speak in both English and Spanish versions. It could detect nuances in the patient's voice, which might then trigger it to refer the patient to a live agent rather than the AI platform. So, very sophisticated technology. And what was most interesting about this, I think, was that over the eight months of the study, around 60% of patients actually engaged with this platform, with almost 60% of that group, or 33% overall, accepting a live transfer and then going on to scheduling, so that the completion rate for the no show patients went from 10% prior to the introduction of this platform to 19% after it was introduced. So [this is] another example, I think, of something which addresses a workforce problem and also addresses a major disparity within cancer care at the moment by harnessing these new technologies. And I think, again, a great interaction of very, very high-level science with things that make a real difference to our patients. So, Dr. DeMichele, those are a couple of examples, I think, of early data which really are beginning to show us the potential and signal the impact that artificial intelligence is going to have for our patients in oncology. I wonder, do you have any thoughts right now of where you see the biggest impact of artificial intelligence; let's say not in 20 years from now, but maybe in the next year or two? Dr. Angela DeMichele: Well, I think that those were two excellent examples. A really important feature of AI is really easing the workload on physicians. And what I hope will happen is that we'll be able to use AI in the very near future as a partner to really offload some of the quite time-consuming tasks, like charting, documentation, that really take us away from face-to-face interaction with patients. I think this has been a very difficult period where we move to electronic medical records, which are great for many reasons, but have really added to the burden to physicians in all of the extra documentation. So that's one way, I think, that we will hope to really be able to harness this. I think the other thing these abstracts indicate is that patients are very willing to interact with these AI chatbots in a way that I think, as you pointed out, the engagement was so high. I think that's because they trust us to make sure that what we're doing is still going to be overseen by physicians, that the information is going to get to us, and that they're going to be guided. And so I think that in areas where we can do outreach to patients, reminders, this is already happening with mammograms and other sorts of screening, where it's automated to make sure you're giving reminders to patients about things that they need to do for some of their basic health maintenance. But here, really providing important information – counseling that can be done by one of these chatbots in a way that is compassionate, informative and does not feel robotic to patients. And then I was really impressed with, in the abstract on the screening colonoscopy, the ability of the AI instrument to really hear nuances in the patient's responses that could direct them directly to a care provider, to a clinician, if they thought that there might be some problem the patient was experiencing. So again, this could be something that could be useful in triaging phone calls that are coming in from patients or our portals that just feel like they are full of messages, no matter how hard you try to clear them all out, to get to them all. Could we begin to use AI to triage some of the more mundane questions that don't require a clinician to answer so that we can really focus on the things that are important, the things that are life threatening or severe, and make sure that we're getting to patients sooner? So there's just a few ways I really hope it'll help us. Dr. John Sweetenham: Yeah, absolutely. I think we're just scratching the surface. And interestingly enough, in my newsfeed this morning through email, I have an email that reads, “Should AI pick immunotherapy combinations?” So we'll see where that goes, and maybe one day it will. Who knows? Dr. Angela DeMichele There was a great study presented at ASCO about that very thing, and I think that is still early, but I could envision a situation where I could ask an AI instrument to tell me all of the data around something that I want to know about for a patient that could deliver all of the data to me in real time in the clinic to be able to help me make decisions, help me quote data to patients. I think in that way it could be very, very helpful. But it'll still need the physicians to be putting the data into context and thinking about how to apply it to the individual person. Dr. John Sweetenham: Absolutely, yes. And so just to round off, the final abstract that caught my eye, which I think kind of expands on a theme that we saw at an ASCO meeting two or three years ago around the impact of [oncology] care at home, and this was Abstract 1503 (“Acute care and overall survival results of a randomized trial of a virtual health intervention during routine cancer treatment”). So, a virtual platform but not AI in this case. And this was a study that looked at the use of an Integrative Medicine at Home virtual mind-body fitness program. And this was a platform that was used to look at hospital admission and acute care of patients who used it, and also looked at survival, interestingly enough. So what was done in this study was a small, randomized study which looked at the use of virtual live mind, body and fitness classes, and compared this in a randomized fashion to what they called enhanced usual care, which essentially consisted of giving the patients, making available to the patients, some pre-recorded online meditation resources that they could use. And this was applied to a number of patients with various malignancies, including melanoma, lung, gynecologic, head and neck cancers, all of whom were on systemic therapy and all of whom were reporting significant fatigue. This was a small study; 128 patients were randomized in this study. And what was very interesting, to cut to the chase here, is that the patients who had the virtual mind-body program, compared with the control group, actually were less likely to be hospitalized, the difference there being 6.3% versus 19.1%, respectively. They spent fewer days in the hospital. And remarkably, the overall survival was 24.3 months median for patients in the usual care arm and wasn't reached in those patients who were on the virtual mind-body fitness class platform. So very preliminary data, certainly are going to need more confirmation, but another example of how it appears that many of these non-pharmacological interventions have the potential to improve meaningful endpoints, including hospital stays and, remarkably, even survival. So again, I think that that is very consistent with the theme of this year's meeting, and I found that particularly interesting, too. I think our time is up, so I want to thank you, Dr. DeMichele, for sharing your insights with us today on the ASCO Daily News Podcast. We really appreciate it. And once again, I want to congratulate you on what was really a truly remarkable ASCO this year. Dr. Angela DeMichele: Well, thanks so much for having me. It's been a tremendous pleasure to be with you today. Dr. John Sweetenham: And thank you to our listeners for joining us today. You'll find links to the abstracts discussed today in a transcript of this episode. Finally, if you value the insights that you hear on the ASCO Daily News Podcast, please take a moment to rate, review, and subscribe wherever you get your podcasts. Disclaimer: The purpose of this podcast is to educate and to inform. This is not a substitute for professional medical care and is not intended for use in the diagnosis or treatment of individual conditions. Guests on this podcast express their own opinions, experience, and conclusions. Guest statements on the podcast do not express the opinions of ASCO. The mention of any product, service, organization, activity, or therapy should not be construed as an ASCO endorsement. Follow ASCO on social media:   @ASCO on Twitter   ASCO on Facebook   ASCO on LinkedIn   Disclosures:  Dr. John Sweetenham:  Consulting or Advisory Role: EMA Wellness  Dr. Angela DeMichele: Consulting or Advisory Role (an immediate family member): Pfizer Research Funding (Inst.): Pfizer, Genentech, Novartis, Inviata/NeoGenomics

new york university chicago art english ai science challenges home spanish pennsylvania national cure pfizer gi drs gu bmi nih abstract integrative medicine acute oncology revolutionize road ahead annual meetings novartis asco genentech plenary adriatic her2 egfr kras nci drugging abstracts ut southwestern adcs breast cancer research ihc plenary session asco annual meeting ctdna abramson cancer center t dxd breast cancer program transcript dr angela demichele

Urothelial Bladder Cancer | Oncology Today with Dr Neil Love: Clinical Update on the Current Management of Advanced Urothelial Bladder Cancer'

Play Episode Listen Later Jun 18, 2024 83:27

Featuring perspectives from Dr Petros Grivas, including the following topics: Collaboration between urologists and medical oncologists for the management of urothelial bladder cancer (UBC) (0:00) Evolution of treatment modalities for non-muscle-invasive bladder cancer (NMIBC) (11:16) Perspective on recurrence mechanisms of NMIBC (22:21) Potential implications of circulating tumor DNA-based research in the management of bladder cancer (25:27) Importance of collaborative care for patients with bladder cancer (42:02) Frequency of HER2 expression and approach to HER2 testing for metastatic UBC (mUBC); activity of trastuzumab deruxtecan (T-DXd) in HER2-positive solid tumors (46:57) Monitoring and management of T-DXd-associated side effects (1:00:47) Efficacy and ongoing investigation of the HER2-targeted antibody-drug conjugate disitamab vedotin; other promising agents and strategies under investigation for mUBC (1:07:32) Results from the Phase III PROOF 302 trial of infigratinib versus placebo for patients with high-risk resected UBC with an FGFR3 genomic alteration (1:11:22) Potential association between intravesical bacillus Calmette-Guérin administration and lower risk of being diagnosed with Alzheimer's disease in patients with bladder cancer; feasibility of internet-based, patient-driven germline genetic testing (1:16:12) CME information and select publications

S1 Ep114: Applying Updated Breast Cancer Findings From ASCO to Clinical Practice

Play Episode Listen Later Jun 17, 2024 31:19

Following the 2024 American Society of Clinical Oncology (ASCO) Annual Meeting, Neil M. Iyengar, MD, and Paolo Tarantino, MD, co-hosted a live X Space with CancerNetwork® and discussed the latest trial updates that may impact clinical practice in the breast cancer field. Iyengar is an associate attending physician at Memorial Sloan Kettering Cancer Center and a co-editor-in-chief of ONCOLOGY®. Tarantino is a clinical research fellow at Dana-Farber Cancer Institute and Harvard Medical School. Iyengar and Tarantino discussed data regarding several trials and studies presented at the meeting. These presentations included: · Phase 3 DESTINY-Breast06 Trial (NCT04494425)1 o Investigators evaluated treatment with trastuzumab deruxtecan (T-DXd; Enhertu) compared with investigator's choice of chemotherapy among patients with hormone receptor (HR)–positive, HER2-low or HER2-ultralow metastatic breast cancer. o The median progression-free survival (PFS) was 13.2 months with T-DXd compared with 8.1 months in patients who received chemotherapy across the HER2-low population (HR, 0.62; 95% CI, 0.51-0.74; P

Charlie Swanton: A Master Class on Cancer

Ground Truths

Play Episode Listen Later Jun 14, 2024 55:38

The most enthralling conversation I've ever had with anyone on cancer. It's with Charlie Swanton who is a senior group leader at the Francis Crick Institute, the Royal Society Napier Professor in Cancer and medical oncologist at University College London, co-director of Cancer Research UK.Video snippet from our conversation. Full videos of all Ground Truths podcasts can be seen on YouTube here. The audios are also available on Apple and Spotify.Transcript with audio links and many external linksEric Topol (00:07):Well, hello, this is Eric Topol with Ground Truths, and I am really fortunate today to connect us with Charlie Swanton, who is if not the most prolific researcher in the space of oncology and medicine, and he's right up there. Charlie is a physician scientist who is an oncologist at Francis Crick and he heads up the lung cancer area there. So Charlie, welcome.Charles Swanton (00:40):Thank you, Eric. Nice to meet you.Learning from a FailureEric Topol (00:43):Well, it really is a treat because I've been reading your papers and they're diverse. They're not just on cancer. Could be connecting things like air pollution, it could be Covid, it could be AI, all sorts of things. And it's really quite extraordinary. So I thought I'd start out with a really interesting short paper you wrote towards the end of last year to give a sense about you. It was called Turning a failing PhD around. And that's good because it's kind of historical anchoring. Before we get into some of your latest contributions, maybe can you tell us about that story about what you went through with your PhD?Charles Swanton (01:26):Yeah, well thank you, Eric. I got into research quite early. I did what you in the US would call the MD PhD program. So in my twenties I started a PhD in a molecular biology lab at what was then called the Imperial Cancer Research Fund, which was the sort of the mecca for DNA tumor viruses, if you like. It was really the place to go if you wanted to study how DNA tumor viruses worked, and many of the components of the cell cycle were discovered there in the 80s and 90s. Of course, Paul Nurse was the director of the institute at the time who discovered cdc2, the archetypal regulator of the cell cycle that led to his Nobel Prize. So it was a very exciting place to work, but my PhD wasn't going terribly well. And sort of 18, 19 months into my PhD, I was summoned for my midterm reports and it was not materializing rapidly enough.(02:25):And I sat down with my graduate student supervisors who were very kind, very generous, but basically said, Charlie, this isn't going well, is it? You've got two choices. You can either go back to medical school or change PhD projects. What do you want to do? And I said, well, I can't go back to medical school because I'm now two years behind. So instead I think what I'll do is I'll change PhD projects. And they asked me what I'd like to do. And back then we didn't know how p21, the CDK inhibitor bound to cyclin D, and I said, that's what I want to understand how these proteins interact biochemically. And they said, how are you going to do that? And I said, I'm not too sure, but maybe we'll try yeast two-hybrid screen and a mutagenesis screen. And that didn't work either. And in the end, something remarkable happened.(03:14):My PhD boss, Nic Jones, who's a great guy, still is, retired though now, but a phenomenal scientist. He put me in touch with a colleague who actually works next door to me now at the Francis Crick Institute called Neil McDonald, a structural biologist. And they had just solved, well, the community had just solved the structure. Pavletich just solved the structure of cyclin A CDK2. And so, Neil could show me this beautiful image of the crystal structure in 3D of cyclin A, and we could mirror cyclin D onto it and find the surface residue. So I spent the whole of my summer holiday mutating every surface exposed acid on cyclin D to an alanine until I found one that failed to interact with p21, but could still bind the CDK. And that little breakthrough, very little breakthrough led to this discovery that I had where the viral cyclins encoded by Kaposi sarcoma herpes virus, very similar to cyclin D, except in this one region that I had found interactive with a CDK inhibitor protein p21.(04:17):And so, I asked my boss, what do you think about the possibility this cyclin could have evolved from cyclin D but now mutated its surface residues in a specific area so that it can't be inhibited by any of the control proteins in the mammalian cell cycle? He said, it's a great idea, Charlie, give it a shot. And it worked. And then six months later, we got a Nature paper. And that for me was like, I cannot tell you how exciting, not the Nature paper so much as the discovery that you were the first person in the world to ever see this beautiful aspect of evolutionary biology at play and how this cyclin had adapted to just drive the cell cycle without being inhibited. For me, just, I mean, it was like a dream come true, and I never experienced anything like it before, and I guess it's sizes the equivalent to me of a class A drug. You get such a buzz out of it and over the years you sort of long for that to happen again. And occasionally it does, and it's just a wonderful profession.Eric Topol (05:20):Well, I thought that it was such a great story because here you were about to fail. I mean literally fail, and you really were able to turn it around and it should give hope to everybody working in science out there that they could just be right around the corner from a significant discovery.Charles Swanton (05:36):I think what doesn't break you makes you stronger. You just got to plow on if you love it enough, you'll find a way forward eventually, I hope.Tracing the Evolution of Cancer (TRACERx)Eric Topol (05:44):Yeah, no question about that. Now, some of your recent contributions, I mean, it's just amazing to me. I just try to keep up with the literature just keeping up with you.Charles Swanton (05:58):Eric, it's sweet of you. The first thing to say is it's not just me. This is a big community of lung cancer researchers we have thanks to Cancer Research UK funded around TRACERx and the lung cancer center. Every one of my papers has three corresponding authors, multiple co-first authors that all contribute in this multidisciplinary team to the sort of series of small incremental discoveries. And it's absolutely not just me. I've got an amazing team of scientists who I work with and learn from, so it's sweet to give me the credit.Eric Topol (06:30):I think what you're saying is really important. It is a team, but I think what I see through it all is that you're an inspiration to the team. You pull people together from all over the world on these projects and it's pretty extraordinary, so that's what I would say.Charles Swanton (06:49):The lung community, Eric, the lung cancer community is just unbelievably conducive to collaboration and advancing understanding of the disease together. It's just such a privilege to be working in this field. I know that sounds terribly corny, but it is true. I don't think I recall a single email to anybody where I've asked if we can collaborate where they've said, no, everybody wants to help. Everybody wants to work together on this challenge. It's just such an amazing field to be working in.Eric Topol (07:19):Yeah. Well I was going to ask you about that. And of course you could have restricted your efforts or focused on different cancers. What made you land in lung cancer? Not that that's only part of what you're working on, but that being the main thing, what drew you to that area?Charles Swanton (07:39):So I think the answer to your question is back in 2008 when I was looking for a niche, back then it was lung cancer was just on the brink of becoming an exciting place to work, but back then nobody wanted to work in that field. So there was a chair position in thoracic oncology and precision medicine open at University College London Hospital that had been open, as I understand it for two years. And I don't think anybody had applied. So I applied and because I was the only one, I got it and the rest is history.(08:16):And of course that was right at the time when the IPASS draft from Tony Mok was published and was just a bit after when the poster child of EGFR TKIs and EGFR mutant lung cancer had finally proven that if you segregate that population of patients with EGFR activating mutation, they do incredibly well on an EGFR inhibitor. And that was sort of the solid tumor poster child along with Herceptin of precision medicine, I think. And you saw the data at ASCO this week of Lorlatinib in re-arranged lung cancer. Patients are living way beyond five years now, and people are actually talking about this disease being more like CML. I mean, it's extraordinary the progress that's been made in the last two decades in my short career.Eric Topol (09:02):Actually, I do want to have you put that in perspective because it's really important what you just mentioned. I was going to ask you about this ASCO study with the AKT subgroup. So the cancer landscape of the lung has changed so much from what used to be a disease of cigarette smoking to now one of, I guess adenocarcinoma, non-small cell carcinoma, not related to cigarettes. We're going to talk about air pollution in a minute. This group that had, as you say, 60 month, five year plus survival versus what the standard therapy was a year plus is so extraordinary. But is that just a small subgroup within small cell lung cancer?Charles Swanton (09:48):Yes, it is, unfortunately. It's just a small subgroup. In our practice, probably less than 1% of all presentations often in never smokers, often in female, never smokers. So it is still in the UK at least a minority subset of adenocarcinomas, but it's still, as you rightly say, a minority of patients that we can make a big difference to with a drug that's pretty well tolerated, crosses the blood-brain barrier and prevents central nervous system relapse and progression. It really is an extraordinary breakthrough, I think. But that said, we're also seeing advances in smoking associated lung cancer with a high mutational burden with checkpoint inhibitor therapy, particularly in the neoadjuvant setting now prior to surgery. That's really, really impressive indeed. And adjuvant checkpoint inhibitor therapies as well as in the metastatic setting are absolutely improving survival times and outcomes now in a way that we couldn't have dreamt of 15 years ago. We've got much more than just platinum-based chemo is basically the bottom line now.Revving Up ImmunotherapyEric Topol (10:56):Right, right. Well that actually gets a natural question about immunotherapy also is one of the moving parts actually just amazing to me how that's really, it's almost like we're just scratching the surface of immunotherapy now with checkpoint inhibitors because the more we get the immune system revved up, the more we're seeing results, whether it's with vaccines or CAR-T, I mean it seems like we're just at the early stages of getting the immune system where it needs to be to tackle the cancer. What's your thought about that?Charles Swanton (11:32):I think you're absolutely right. We are, we're at the beginning of a very long journey thanks to Jim Allison and Honjo. We've got CTLA4 and PD-1/PDL-1 axis to target that's made a dramatic difference across multiple solid tumor types including melanoma and lung cancer. But undoubtedly, there are other targets we've seen LAG-3 and melanoma and then we're seeing new ways, as you rightly put it to mobilize the immune system to target cancers. And that can be done through vaccine based approaches where you stimulate the immune system against the patient's specific mutations in their cancer or adoptive T-cell therapies where you take the T-cells out of the tumor, you prime them against the mutations found in the tumor, you expand them and then give them back to the patient. And colleagues in the US, Steve Rosenberg and John Haanen in the Netherlands have done a remarkable job there in the context of melanoma, we're not a million miles away from European approvals and academic initiated manufacturing of T-cells for patients in national health systems like in the Netherlands.(12:50):John Haanen's work is remarkable in that regard. And then there are really spectacular ways of altering T-cells to be able to either migrate to the tumor or to target specific tumor antigens. You mentioned CAR-T cell therapies in the context of acute leukemia, really extraordinary developments there. And myeloma and diffuse large B-cell lymphoma as well as even in solid tumors are showing efficacy. And I really am very excited about the future of what we call biological therapies, be it vaccines, an antibody drug conjugates and T-cell therapies. I think cancer is a constantly adapting evolutionary force to be reckoned with what better system to combat it than our evolving immune system. It strikes me as being a future solution to many of these refractory cancers we still find difficult to treat.Eric Topol (13:48):Yeah, your point is an interesting parallel how the SARS-CoV-2 virus is constantly mutating and becoming more evasive as is the tumor in a person and the fact that we can try to amp up the immune system with these various means that you just were reviewing. You mentioned the other category that's very hot right now, which is the antibody drug conjugates. Could you explain a bit about how they work and why you think this is an important part of the future for cancer?Antibody-Drug ConjugatesCharles Swanton (14:26):That's a great question. So one of the challenges with chemotherapy, as you know, is the normal tissue toxicity. So for instance, neutropenia, hair loss, bowel dysfunction, diarrhea, epithelial damage, essentially as you know, cytotoxics affect rapidly dividing tissues, so bone marrow, epithelial tissues. And because until relatively recently we had no way of targeting chemotherapy patients experienced side effects associated with them. So over the last decade or so, pioneers in this field have brought together this idea of biological therapies linked with chemotherapy through a biological linker. And so one poster chart of that would be the drug T-DXd, which is essentially Herceptin linked to a chemotherapy drug. And this is just the most extraordinary drug that obviously binds the HER2 receptor, but brings the chemotherapy and proximity of the tumor. The idea being the more drug you can get into the tumor and the less you're releasing into normal tissue, the more on tumor cytotoxicity you'll have and the less off tumor on target normal tissue side effects you'll have. And to a large extent, that's being shown to be the case. That doesn't mean they're completely toxicity free, they're not. And one of the side effects associated with these drugs is pneumonitis.(16:03):But that said, the efficacy is simply extraordinary. And for example, we're having to rewrite the rule books if you like, I think. I mean I'm not a breast cancer physician, I used to be a long time ago, but back in the past in the early 2000s, there was HER2 positive breast cancer and that's it. Now they're talking about HER2 low, HER2 ultra-low, all of which seem to in their own way be sensitive to T-DXd, albeit to a lower extent than HER2 positive disease. But the point is that there doesn't seem to be HER2 completely zero tumor group in breast cancer. And even the HER2-0 seem to benefit from T-DXd to an extent. And the question is why? And I think what people are thinking now is it's a combination of very low cell service expression of HER2 that's undetectable by conventional methods like immunohistochemistry, but also something exquisitely specific about the way in which HER2 is mobilized on the membrane and taken back into the cell. That seems to be specific to the breast cancer cell but not normal tissue. So in other words, the antibody drug conjugate binds the tumor cell, it's thought the whole receptor's internalized into the endosome, and that's where the toxicity then happens. And it's something to do with the endosomal trafficking with the low level expression and internalization of the receptor. That may well be the reason why these HER2 low tumors are so sensitive to this beautiful technology.Eric Topol (17:38):Now I mean it is an amazing technology in all these years where we just were basically indiscriminately trying to kill cells and hoping that the cancer would succumb. And now you're finding whether you want to call it a carry or vector or Trojan horse, whatever you want to call it, but do you see that analogy of the HER2 receptor that's going to be seen across the board in other cancers?Charles Swanton (18:02):That's the big question, Eric. I think, and have we just lucked out with T-DXd, will we find other T-DXd like ADCs targeting other proteins? I mean there are a lot of ADCs being developed against a lot of different cell surface proteins, and I think the jury's still out. I'm confident we will, but we have to bear in mind that biology is a fickle friend and there may be something here related to the internalization of the receptor in breast cancer that makes this disease so exquisitely sensitive. So I think we just don't know yet. I'm reasonably confident that we will find other targets that are as profoundly sensitive as HER2 positive breast cancer, but time will tell.Cancer, A Systemic DiseaseEric Topol (18:49):Right. Now along these lines, well the recent paper that you had in Cell, called embracing cancer complexity, which we've talking about a bit, in fact it's kind of those two words go together awfully well, but hallmarks of systemic disease, this was a masterful review, as you say with the team that you led. But can you tell us about what's your main perspective about this systemic disease? I mean obviously there's been the cancer is like cardiovascular and cancers like this or that, but here you really brought it together with systemic illness. What can you say about that?Charles Swanton (19:42):Well, thanks for the question first of all, Eric. So a lot of this comes from some of my medical experience of treating cancer and thinking to myself over the years, molecular biology has had a major footprint on advances in treating the disease undoubtedly. But there are still aspects of medicine where molecular biology has had very little impact, and often that is in areas of suffering in patients with advanced disease and cancer related to things like cancer cachexia, thrombophilia. What is the reason why patients die blood clots? What is the reason patients die of cancer at all? Even a simple question like that, we don't always know the answer to, on death certificates, we write metastatic disease as a cause of cancer death, but we have patients who die with often limited disease burden and no obvious proximal cause of death sometimes. And that's very perplexing, and we need to understand that process better.(20:41):And we need to understand aspects like cancer pain, for example, circadian rhythms affect biological sensitivity of cancer cells to drugs and what have you. Thinking about cancer rather than just sort of a single group of chaotically proliferating cells to a vision of cancer interacting both locally within a microenvironment but more distantly across organs and how organs communicate with the cancer through neuronal networks, for example, I think is going to be the next big challenge by setting the field over the next decade or two. And I think then thinking about more broadly what I mean by embracing complexity, I think some of that relates to the limitations of the model systems we use, trying to understand inter-organ crosstalk, some of the things you cover in your beautiful Twitter reviews. (←Ground Truths link) I remember recently you highlighted four publications that looked at central nervous system, immune cell crosstalk or central nervous system microbiome crosstalk. It's this sort of long range interaction between organs, between the central nervous system and the immune system and the cancer that I'm hugely interested in because I really think there are vital clues there that will unlock new targets that will enable us to control cancers more effectively if we just understood these complex networks better and had more sophisticated animal model systems to be able to interpret these interactions.Eric Topol (22:11):No, it's so important what you're bringing out, the mysteries that still we have to deal with cancer, why patients have all these issues or dying without really knowing what's happened no less, as you say, these new connects that are being discovered at a remarkable pace, as you mentioned, that ground truths. And also, for example, when I spoke with Michelle Monje, she's amazing on the cancer, where hijacking the brain cells and just pretty extraordinary things. Now that gets me to another line of work of yours. I mean there are many, but the issue of evolution of the tumor, and if you could put that in context, a hot area that's helping us elucidate these mechanisms is known as spatial omics or spatial biology. This whole idea of being able to get the spatial temporal progression through single cell sequencing and single cell nuclei, all the single cell omics. So if you could kind of take us through what have we learned with this technique and spatial omics that now has changed or illuminated our understanding of how cancer evolves?Charles Swanton (23:37):Yeah, great question. Well, I mean I think it helps us sort of rewind a bit and think about evolution in general. Genetic selection brought about by diverse environments and environmental pressures that force evolution, genetic evolution, and speciation down certain evolutionary roots. And I think one can think about cancers in a similar way. They start from a single cell and we can trace the evolutionary paths of cancers by single cell analysis as well as bulk sequencing of spatially separated tumor regions to be able to reconstruct their subclones. And that's taught us to some extent, what are the early events in tumor evolution? What are the biological mechanisms driving branched evolution? How does genome instability begin in tumors? And we found through TRACERx work, whole genome doubling is a major route through to driving chromosome instability along with mutagenic enzymes like APOBEC that drive both mutations and chromosomal instability.(24:44):And then that leads to a sort of adaptive radiation in a sense, not dissimilar to I guess the Cambrian explosion of evolutionary opportunity upon which natural selection can act. And that's when you start to see the hallmarks of immune evasion like loss of HLA, the immune recognition molecules that bind the neoantigens or even loss of the neoantigens altogether or mutation of beta 2 microglobulin that allow the tumor cells to now evolve below the radar, so to speak. But you allude to the sort of spatial technologies that allow us to start to interpret the microenvironments as well. And that then tells us what the evolutionary pressures are upon the tumor. And we're learning from those spatial technologies that these environments are incredibly diverse, actually interestingly seem to be converging on one important aspect I'd like to talk to you a little bit more about, which is the myeloid axis, which is these neutrophils, macrophages, et cetera, that seem to be associated with poor outcome and that will perhaps talk about pollution in a minute.(25:51):But I think they're creating a sort of chronic inflammatory response that allows these early nascent tumor cells to start to initiate into frankly tumor invasive cells and start to grow. And so, what we're seeing from these spatial technologies in lung cancer is that T-cells, predatory T-cells, force tumors to lose their HLA molecules and what have you to evade the immune system. But for reasons we don't understand, high neutrophil infiltration seems to be associated with poor outcome, poor metastasis free survival. And actually, those same neutrophils we've recently found actually even tracked to the metastasis sites of metastasis. So it's almost like this sort of symbiosis between the myeloid cells and the tumor cells in their biology and growth and progression of the tumor cells.Eric Topol (26:46):Yeah, I mean this white cell story, this seems to be getting legs and is relatively new, was this cracked because of the ability to do this type of work to in the past everything was, oh, it's cancer's heterogeneous and now we're getting pinpoint definition of what's going on.Charles Swanton (27:04):I think it's certainly contributed, but it's like everything in science, Eric, when you look back, there's evidence in the literature for pretty much everything we've ever discovered. You just need to put the pieces together. And I mean one example would be the neutrophil lymphocyte ratio in the blood as a hallmark of outcome in cancers and to checkpoint inhibitor blockade, maybe this begins to explain it, high neutrophils, immune suppressive environment, high neutrophils, high macrophages, high immune suppression, less benefit from checkpoint inhibitor therapy, whereas you want lymphocyte. So I think there are biomedical medical insights that help inform the biology we do in the lab that have been known for decades or more. And certainly the myeloid M2 axis in macrophages and what have you was known about way before these spatial technologies really came to fruition, I think.The Impact of Air PollutionEric Topol (28:01):Yeah. Well you touched on this about air pollution and that's another dimension of the work that you and your team have done. As you well know, there was a recent global burden of disease paper in the Lancet, which has now said that air pollution with particulate matter 2.5 less is the leading cause of the burden of disease in the world now.Charles Swanton (28:32):What did you think of that, Eric?Eric Topol (28:34):I mean, I was blown away. Totally blown away. And this is an era you've really worked on. So can you put it in perspective?Charles Swanton (28:42):Yeah. So we got into this because patients of mine, and many of my colleagues would ask the same question, I've never smoked doctor, I'm healthy. I'm in my mid 50s though they're often female and I've got lung cancer. Why is that doctor? I've had a good diet, I exercise, et cetera. And we didn't really have a very good answer for that, and I don't want to pretend for a minute we solved the whole problem. I think hopefully we've contributed to a little bit of understanding of why this may happen. But that aside, we knew that there were risk factors associated with lung cancer that included air pollution, radon exposure, of course, germline genetics, we mustn't forget very important germline variation. And I think there is evidence that all of them are associated with lung cancer risk in different ways. But we wanted to look at air pollution, particularly because there was an awful lot of evidence, several meta-analysis of over half a million individuals showing very convincingly with highly significant results that increasing PM 2.5 micron particulate levels were associated with increased risk of lung cancer.(29:59):To put that into perspective, where you are on the west coast of the US, it's relatively unpolluted. You would be talking about maybe five micrograms per meter cubed of PM2.5 in a place like San Diego or Western California, assuming there aren't any forest fires of course. And we estimate that that would translate to about, we think it's about one extra case of never smoking lung cancer per hundred thousand of the population per year per one microgram per meter cube rise in the pollution levels. So if you go to Beijing for example, on a bad day, the air pollution levels could be upwards of a hundred micrograms per meter cubed because there are so many coal fired power stations in China partly. And there I think the risk is considerably higher. And that's certainly what we've seen in the meta-analyses in our limited and relatively crude epidemiological analyses to be the case.(30:59):So I think the association was pretty certain, we were very confident from people's prior publications this was important. But of course, association is not causation. So we took a number of animal models and showed that you could promote lung cancer formation in four different oncogene driven lung cancer models. And then the question is how, does air pollution stimulate mutations, which is what I initially thought it would do or something else. It turns out we don't see a significant increase in exogenous like C to A carcinogenic mutations. So that made us put our thinking caps on. And I said to you earlier, often all these discoveries have been made before. Well, Berenblum in 1947, first postulated that actually tumors are initiated through a two-step process, which we now know involves a sort of pre initiated cell with a mutation in that in itself is not sufficient to cause cancer.(31:58):But on top of that you need an inflammatory stimulus. So the question was then, well, okay, is inflammation working here? And we found that there was an interleukin-1 beta axis. And what happens is that the macrophages come into the lung on pollution exposure, engulf phagocytose the air pollutants, and we think what's happening is the air pollutants are puncturing membranes in the lung. That's what we think is happening. And interleukin-1 beta preformed IL-1 beta is being released into the extracellular matrix and then stimulating pre-initiated cells stem cells like the AT2 cells with an activating EGFR mutation to form a tumor. But the EGFR mutation alone is not sufficient to form tumors. It's only when you have the interleukin-1 beta and the activated mutation that a tumor can start.(32:49):And we found that if we sequence normal lung tissue in a healthy adult 60-year-old adult, we will find about half of biopsies will have an activating KRAS mutation in normal tissue, and about 15% will have an activating mutation in EGFR in histologically normal tissue with nerve and of cancer. In fact, my friend and colleague who's a co-author on the paper, James DeGregori, who you should speak to in Colorado, fascinating evolutionary cancer biologists estimates that in a healthy 60-year-old, there are a hundred billion cells in your body that harbor an oncogenic mutation. So that tells you that at the cellular level, cancer is an incredibly rare event and almost never happens. I mean, our lifetime risk of cancer is perhaps one in two. You covered that beautiful pancreas paper recently where they estimated that there may be 80 to 100 KRAS mutations in a normal adult pancreas, and yet our lifetime risk of pancreas cancer is one in 70. So this tells you that oncogenic mutations are rarely sufficient to drive cancer, so something else must be happening. And in the context of air pollution associated lung cancer, we think that's inflammation driven by these white cells, these myeloid cells, the macrophages.Cancer BiomarkersEric Topol (34:06):No, it makes a lot of sense. And this, you mentioned the pancreas paper and also what's going in the lung, and it seems like we have this burden of all you need is a tipping point and air pollution seems to qualify, and you seem to be really in the process of icing the mechanism. And like I would've thought it was just mutagenic and it's not so simple, right? But that gets me to this is such an important aspect of cancer, the fact that we harbor these kind of preconditions. And would you think that cancer takes decades to actually manifest most cancers, or do we really have an opportunity here to be able to track whether it's through blood or other biomarkers? Another area you've worked on a lot whereby let's say you could define people at risk for polygenic risk scores or various cancers or genome sequencing for predisposition genes, whatever, and you could monitor in the future over the course of those high-risk people, whether they were starting to manifest microscopic malignancy. Do you have any thoughts about how long it takes for the average person to actually manifest a typical cancer?Charles Swanton (35:28):That's a cracking question, and the answer is we've got some clues in various cancers. Peter Campbell would be a good person to speak to. He estimates that some of the earliest steps in renal cancer can occur in adolescence. We've had patients who gave up smoking 30 or so years ago where we can still see the clonal smoking mutations in the trunk of the tumor's evolutionary tree. So the initial footprints of the cancer are made 30 years before the cancer presents. That driver mutation itself may also be a KRAS mutation in a smoking cigarette context, G12C mutation. And those mutations can precede the diagnosis of the disease by decades. So the earliest steps in cancer evolution can occur, we think can precede diagnoses by a long time. So to your point, your question which is, is there an opportunity to intervene? I'm hugely optimistic about this actually, this idea of molecular cancer prevention.An Anti-Inflammatory Drug Reduces Fatal Cancer and Lung Cancer(36:41):How can we use data coming out of various studies in the pancreas, mesothelioma, lung, et cetera to understand the inflammatory responses? I don't think we can do very much about the mutations. The mutations unfortunately are a natural consequence of aging. You and I just sitting here talking for an hour will have accumulated multiple mutations in our bodies over that period, I'm afraid and there's no escaping it. And right now there's not much we can do to eradicate those mutant clones. So if we take that as almost an intractable problem, measuring them is hard enough, eradicating them is even harder. And then we go back to Berenblum in 1947 who said, you need an inflammatory stimulus. Well, could we do something about the inflammation and dampen down the inflammation? And of course, this is why we got so excited about IL-1 beta because of the CANTOS trial, which you may remember in 2017 from Ridker and colleagues showed that anti IL-1 beta used as a mechanism of preventing cardiovascular events was associated with a really impressive dose dependent reduction in new lung cancer primaries.(37:49):Really a beautiful example of cancer prevention in action. And that data weren't just a coincidence. The FDA mandated Novartis to collect the solid tumor data and the P-values are 0.001. I mean it's very highly significant dose dependent reduction in lung cancer incidents associated with anti IL-1 beta. So I think that's really the first clue in my mind that something can be done about this problem. And actually they had five years of follow-up, Eric. So that's something about that intervening period where you can treat and then over time see a reduction in new lung cancers forming. So I definitely think there's a window of opportunity here.Eric Topol (38:31):Well, what you're bringing up is fascinating here because this trial, which was a cardiology trial to try to reduce heart attacks, finds a reduction in cancer, and it's been lost. It's been buried. I mean, no one's using this therapy to prevent cancer between ratcheting up the immune system or decreasing inflammation. We have opportunities that we're not even attempting. Are there any trials that are trying to do this sort of thing?Charles Swanton (39:02):So this is the fundamental problem. Nobody wants to invest in prevention because essentially you are dealing with well individuals. It's like the vaccine challenge all over again. And the problem is you never know who you are benefiting. There's no economic model for it. So pharma just won't touch prevention with a barge pole right now. And that's the problem. There's no economic model for it. And yet the community, all my academic colleagues are crying out saying, this has got to be possible. This has got to be possible. So CRUK are putting together a group of like-minded individuals to see if we can do something here and we're gradually making progress, but it is tough.Eric Topol (39:43):And it's interesting that you bring that up because for GRAIL, one of the multicenter cancer early detection companies, they raised billions of dollars. And in fact, their largest trial is ongoing in the UK, but they haven't really focused on high-risk people. They just took anybody over age 50 or that sort of thing. But that's the only foray to try to reboot how we or make an early microscopic diagnosis of cancer and track people differently. And there's an opportunity there. You've written quite a bit on you and colleagues of the blood markers being able to find a cancer where well before, in fact, I was going to ask you about that is, do you think there's people that are not just having all these mutations every minute, every hour, but that are starting to have the early seeds of cancer, but because their immune system then subsequently kicks in that they basically kind of quash it for that period of time?Charles Swanton (40:47):Yeah, I do think that, I mean, the very fact that we see these sort of footprints in the tumor genome of immune evasion tells you that the immune system's having a very profound predatory effect on evolving tumors. So I do think it's very likely that there are tumors occurring that are suppressed by the immune system. There is a clear signature, a signal of negative selection in tumors where clones have been purified during their evolution by the immune system. So I think there's pretty strong evidence for that now. Obviously, it's very difficult to prove something existed when it doesn't now exist, but there absolutely is evidence for that. I think it raises the interesting question of immune system recognizes mutations and our bodies are replete with mutations as we were just discussing. Why is it that we're not just a sort of epithelial lining of autoimmunity with T-cells and immune cells everywhere? And I think what the clever thing about the immune system is it's evolved to target antigens only when they get above a certain burden. Otherwise, I think our epithelial lining, our skin, our guts, all of our tissues will be just full of T-cells eating away our normal clones.(42:09):These have to get to a certain size for antigen to be presented at a certain level for the immune system to recognize it. And it's only then that you get the immune predation occurring.Forever Chemicals and Microplastics Eric Topol (42:20):Yeah, well, I mean this is opportunities galore here. I also wanted to extend the air pollution story a bit. Obviously, we talked about particulate matter and there's ozone and nitric NO2, and there's all sorts of other air pollutants, but then there's also in the air and water these forever chemicals PFAS for abbreviation, and they seem to be incriminated like air pollution. Can you comment about that?Charles Swanton (42:55):Well, I can comment only insofar as to say I'm worried about the situation. Indeed, I'm worried about microplastics actually, and you actually cover that story as well in the New England Journal, the association of microplastics with plaque rupture and atheroma. And indeed, just as in parenthesis, I wanted to just quickly say we currently think the same mechanisms that are driving lung cancer are probably responsible for atheroma and possibly even neurodegenerative disease. And essentially it all comes down to the macrophages and the microglia becoming clogged up with these pollutants or environmental particulars and releasing chronic inflammatory mediators that ultimately lead to disease. And IL-1 beta being one of those in atheroma and probably IL-6 and TNF in neurodegenerative disease and what have you. But I think this issue that you rightly bring up of what is in our environment and how does it cause pathology is really something that epidemiologists have spent a lot of time focusing on.(43:56):But actually in terms of trying to move from association to causation, we've been, I would argue a little bit slow biologically in trying to understand these issues. And I think that is a concern. I mean, to give you an example, Allan Balmain, who works at UCSF quite close to you, published a paper in 2020 showing that 17 out of 20 environmental carcinogens IARC carcinogens class one carcinogens cause tumors in rodent models without driving mutations. So if you take that to a logical conclusion, in my mind, what worries me is that many of the sort of carcinogen assays are based on driving mutagenesis genome instability. But if many carcinogen aren't driving DNA mutagenesis but are still driving cancer, how are they doing it? And do we actually have the right assays to interpret safety of new chemical matter that's being introduced into our environment, these long-lived particles that we're breathing in plastics, pollutants, you name it, until we have the right biological assays, deeming something to be safe I think is tricky.Eric Topol (45:11):Absolutely. And I share your concerns on the nanoplastic microplastic story, as you well know, not only have they been seen in arteries that are inflamed and in blood clots and in various tissues, have they been seen so far or even looked for within tumor tissue?Charles Swanton (45:33):Good question. I'm not sure they have. I need to check. What I can tell you is we've been doing some experiments in the lab with fluorescent microplastics, 2.5 micron microplastics given inhaled microplastics. We find them in every mouse organ a week after. And these pollutants even get through into the brain through the olfactory bulb we think.Charles Swanton (45:57):Permeate every tissue, Eric.Eric Topol (45:59):Yeah, no, this is scary because here we are, we have these potentially ingenious ways to prevent cancer in the future, but we're chasing our tails by not doing anything to deal with our environment.Charles Swanton (46:11):I think that's right. I totally agree. Yeah.Eric Topol (46:15):So I mean, I can talk to you for the rest of the day, but I do want to end up with a topic that we have mutual interest in, which is AI. And also along with that, when you mentioned about aging, I'd like to get your views on these two, how do you see AI fitting into the future of cancer? And then the more general topic is, can we actually at some point modulate the biologic aging process with or without help with from AI? So those are two very dense questions, but maybe you can take us through them.Charles Swanton (46:57):How long have we got?Eric Topol (46:59):Just however long you have.A.I. and CancerCharles Swanton (47:02):AI and cancer. Well, AI and medicine actually in general, whether it's biomedical research or medical care, has just infinite potential. And I'm very, very excited about it. I think what excites me about AI is it's almost the infinite possibilities to work across scale. Some of the challenges we raised in the Cell review that you mentioned, tackling, embracing complexity are perfectly suited for an AI problem. Nonlinear data working, for instance in our fields with CT imaging, MRI imaging, clinical outcome data, blood parameters, genomics, transcriptomes and proteomes and trying to relate this all into something that's understandable that relates to risk of disease or potential identification of a new drug target, for example. There are numerous publications that you and others have covered that allude to the incredible possibilities there that are leading to, for instance, the new identification of drug targets. I mean, Eli Van Allen's published some beautiful work here and in the context of prostate cancer with MDM4 and FGF receptor molecules being intimately related to disease biology.(48:18):But then it's not just that, not just drug target identification, it's also going all the way through to the clinic through drug discovery. It's how you get these small molecules to interact with oncogenic proteins and to inhibit them. And there are some really spectacular developments going on in, for instance, time resolved cryo-electron microscopy, where in combination with modeling and quantum computing and what have you, you can start to find pockets emerging in mutant proteins, but not the wild type ones that are druggable. And then you can use sort of synthetic AI driven libraries to find small molecules that will be predicted to bind these transiently emerging pockets. So it's almost like AI is primed to help at every stage in scientific investigation from the bench all the way through to the bedside. And there are examples all the way through there in the literature that you and others have covered in the last few years. So I could not be more excited about that.Eric Topol (49:29):I couldn't agree with you more. And I think when we get to multimodal AI at the individual level across all their risks for conditions in their future, I hope someday will fulfill that fantasy of primary prevention. And that is getting me to this point that I touched on because I do think they interact to some degree AI and then will we ever be able to have an impact on aging? Most people conflate this because what we've been talking about throughout the hour has been age-related diseases, that is cancer, for example, and cardiovascular and neurodegenerative, which is different than changing aging per se, body wide aging. Do you think we'll ever changed body wide aging?Charles Swanton (50:18):Wow, what a question. Well, if you'd asked me 10 years ago, 15 years ago, do you think we'll ever cure melanoma in my lifetime, I'd have said definitely not. And now look where we are. Half of patients with melanoma, advanced melanoma, even with brain metastasis curd with combination checkpoint therapy. So I never say never in biology anymore. It always comes back to bite you and prove you wrong. So I think it's perfectly possible.Charles Swanton (50:49):We have ways to slow down the aging process. I guess the question is what will be the consequences of that?Eric Topol (50:55):That's what I was going to ask you, because all these things like epigenetic reprogramming and senolytic drugs, and they seem to at least pose some risk for cancer.Charles Swanton (51:09):That's the problem. This is an evolutionary phenomenon. It's a sort of biological response to the onslaught of these malignant cells that are potentially occurring every day in our normal tissue. And so, by tackling one problem, do we create another? And I think that's going to be the big challenge over the next 50 years.Eric Topol (51:31):Yeah, and I think your point about the multi-decade challenge, because if you can promote healthy aging without any risk of cancer, that would be great. But if the tradeoff is close, it's not going to be very favorable. That seems to be the main liability of modulation aging through many of the, there's many shots on goal here, of course, as you well know. But they do seem to pose that risk in general.Charles Swanton (51:58):I think that's right. I think the other thing is, I still find, I don't know if you agree with me, but it is an immense conundrum. What is the underlying molecular basis for somatic aging, for aging of normal tissues? And it may be multifactorial, it may not be just one answer to that question. And different tissues may age in different ways. I don't know. It's a fascinating area of biology, but I think it really needs to be studied more because as you say, it underpins all of these diseases we've been talking about today, cardiovascular, neurodegeneration, cancer, you name it. We absolutely have to understand this. And actually, the more I work in cancer, the more I feel like actually what I'm working on is aging.(52:48):And this is something that James DeGregori and I have discussed a lot. There's an observation that in medicine around patients with alpha-1 antitrypsin deficiency who are at higher risk of lung cancer, but they're also at high risk of COPD, and we know the associations of chronic obstructive pulmonary disease with lung cancer risk. And one of the theories that James had, and I think this is a beautiful idea, actually, is as our tissues age, and COPD is a reflection of aging, to some extent gone wrong. And as our tissues age, they become less good at controlling the expansion of these premalignant clones, harboring, harboring oncogenic mutations in normal tissue. And as those premalignant clones expand, the substrate for evolution also expands. So there's more likely to be a second and third hit genetically. So it may be by disrupting the extracellular matrices through inflammation that triggers COPD through alpha-1 antitrypsin deficiency or smoking, et cetera, you are less effectively controlling these emergent clones that just expand with age, which I think is a fascinating idea actually.Eric Topol (54:01):It really is. Well, I want to tell you, Charlie, this has been the most fascinating, exhilarating discussion I've ever had on cancer. I mean, really, I am indebted to you because not just all the work you've done, but your ability to really express it, articulate it in a way that hopefully everyone can understand who's listening or reading the transcript. So we'll keep following what you're doing because you're doing a lot of stuff. I can't thank you enough for joining me today, and you've given me lots of things to think about. I hope the people that are listening or reading feel the same way. I mean, this has been so mind bending in many respects. We're indebted to you.Charles Swanton (54:49):Well, we all love reading your Twitter feeds. Keep them coming. It helps us keep a broader view of medicine and biological research, not just cancer, which is why I love it so much.******************************************The Ground Truths newsletters and podcasts are all free, open-access, without ads.Please share this post/podcast with your friends and network if you found it informativeVoluntary paid subscriptions all go to support Scripps Research. Many thanks for that—they greatly helped fund our summer internship programs for 2023 and 2024.Thanks to my producer Jessica Nguyen and Sinjun Balabanoff tor audio and video support at Scripps Research.Note: you can select preferences to receive emails about newsletters, podcasts, or all I don't want to bother you with an email for content that you're not interested in. Get full access to Ground Truths at erictopol.substack.com/subscribe

ASCO 2024

OncoPharm

Play Episode Listen Later Jun 6, 2024 25:08

Lots and lots of updates from the past weekend's ASCO annual meeting. 1. ADRIATIC (consolidation durvalumab in limited stage SCLC) 2. NADINA (neoadjuvant Nivo/Ipi in stage III melanoma) 3. *NICHE-2 (neoadjuvant Nivo/Ipi in dMMR colon cancer) 4. CheckMate 8HW (Nivo/Ipi in dMMR metastatic colon cancer) 5. TRANSMET (liver transplantation in colon cancer with liver mets) 6. Eposec (FLOT > CROSS in adenocarcinoma of the esophagus) 7. LAURA (forever osimertinib in stage III EGFR-mutated NSCLC post-chemoRT) 8. CROWN (5 year update of lorlatinib in ALK+ NSCLC) 9. Destiny Breast-06 (T-DXd vs. chemo in HER-2 low and "ultra" low MBC who haven't received chemo in metastatic setting) 10. ASC4FIRST (Asciminib first line in CML. Funny title, amirite?)

cross funny crown niche asco mbc adriatic nsclc cml sclc nadina dmmr t dxd

Gastrointestinal Cancers | Oncology Today with Dr Neil Love: Role of HER2-Directed Therapy in the Treatment of HER2-Expressing Gastrointestinal Cancers — Part 2 of a Special 3-Part Edition

therapy cancer treatments evolving directed activity oncology molecular cme crc gastrointestinal her2 neil love t dxd

Play Episode Listen Later Apr 16, 2024 37:10

Featuring an interview with Dr Kanwal Raghav, including the following topics: Activity and tolerability of trastuzumab deruxtecan (T-DXd) in patients with HER2-expressing colorectal cancer (CRC) (0:00) Case: A woman in her mid 50s with multiregimen-refractory metastatic CRC receives T-DXd on a clinical trial (11:19) Case: A woman in her early 60s with advanced intrahepatic cholangiocarcinoma receives zanidatamab on a clinical trial (18:11) Molecular pathways and mechanisms of HER2 in cancer; clinical implications and future directions for gastrointestinal cancers (20:33) Evolving paradigm surrounding HER2 and other oncogene-addicted targets (29:32) CME information and select publications

Gastrointestinal Cancers | Oncology Today with Dr Neil Love: Role of HER2-Directed Therapy in the Treatment of HER2-Expressing Gastrointestinal Cancers — Part 2 of a Special 3-Part Edition (Companion Faculty Lecture)

annual conferences nejm her2 neuro oncology hopa t dxd

Play Episode Listen Later Apr 16, 2024 32:57

Featuring a slide presentation and related discussion from Dr Kanwal Raghav, including the following topics: Prevalence of HER2 alterations among patients with advanced gastrointestinal tumors beyond gastroesophageal cancer (0:00) Dual HER2 inhibition in the treatment of HER2-amplified colorectal cancer (CRC) (4:56) Efficacy and tolerability of the antibody-drug conjugate trastuzumab deruxtecan (T-DXd) for patients with HER2-expressing metastatic CRC (8:52) Activity and safety of the novel bispecific antibody zanidatamab for previously treated HER2-amplified biliary tract cancer (BTC) (14:11) Key findings with tucatinib/trastuzumab for previously treated HER2-positive BTC (21:56) Antitumor activity observed with T-DXd in patients with BTC with HER2 mutations in the Phase II DESTINY-PanTumor02 trial (23:39) CME information and select publications

therapy cancer treatments directed activity faculty lecture companion oncology btc efficacy prevalence cme crc gastrointestinal her2 neil love antitumor t dxd

HOPA '24, Site Agnositc T-DXd, & ALINA

OncoPharm

Play Episode Listen Later Apr 11, 2024 14:10

What I learned (or relearned?) at HOPA's 2024 Annual Conference: updates in Neuro Oncology, fedratinib toxicity, and bispecific antibodies in multiple myeloma. Also, fam-trastuzumab deruxtecan (T-DXd) garnered a site-agnostic approval for HER2 amplified solid tumors. Finally, the ALINA study, adjuvant alectinib in ALK+ NSCLC, was published in this week's NEJM.

ADCs in Breast Cancer: Sequencing, Resistance, and Managing Toxicity

Play Episode Listen Later Feb 15, 2024 30:14

Drs. Hope Rugo and Sara Tolaney discuss the promise of antibody-drug conjugates (ADCs) in the treatment of breast cancer, highlighting key trials that shed light on matching the right ADC to the right patient in the right setting. They also explore how combinations and sequencing of ADCs can augment their efficacy, the mechanisms of resistance, and the future potential of biomarkers to predict patient response. TRANSCRIPT Dr. Hope Rugo: Hello, I'm Dr. Hope Rugo, your guest host of the ASCO Daily News Podcast today. I'm a professor of medicine and director of breast oncology and clinical trials education at the University of California, San Francisco's Comprehensive Cancer Center. Antibody-drug conjugates, or ADCs, are rapidly changing the treatment landscape for patients with breast cancer. ADCs consist of antibodies that target tumor-specific antigens on the cell surface, chemical linkers, and cytotoxic payloads that can act powerfully to kill cancer cells. On today's episode, we'll be discussing advances in research to match the right ADC to the right patients and in the right setting. We'll also talk about the next steps, assessing how combinations and sequencing of ADCs can augment their efficacy, improve options for patients, and identify biomarkers in the future to predict how patients will respond so that we can match the right treatment to the right patient and their tumor. We need to gain a better understanding of the mechanisms of resistance that occur upfront as well as under the pressure of treatment. Joining me for this important discussion is Dr. Sara Tolaney. Dr. Tolaney is an associate professor of medicine at Harvard Medical School, associate director of the Susan Smith Center for Women's Cancer, and chief of the Division of Breast Oncology at the Dana-Farber Cancer Institute in Boston. You'll find our full disclosures in the transcript of this episode and disclosures of all guests on the podcast are available at asco.org/DNpod. Dr. Tolaney, we're delighted to have you on the podcast today. Thanks for being here. Dr. Sara Tolaney: Thank you so much for having me. I'm looking forward to the discussion. Dr. Hope Rugo: Great! So, we'll move forward, and because we're friends and colleagues, I'm going to refer to you as Sara, and I'm Hope, since we'll dispense with formalities in our discussion. A lot of the talks that we give about ADCs start out with “a revolution in breast cancer therapy.” And indeed, this is a really exciting time with ADCs as treatment for breast cancer, and we're rapidly moving these agents into earlier disease settings. Can you tell us a little bit about the possibilities and challenges of using ADCs for the treatment of breast cancer today? Dr. Sara Tolaney: It's interesting that you say antibody-drug conjugates as revolutionizing outcomes of breast cancer, which I think is true. But on the flip side, I think it's also bringing up a lot of questions about how to use them, when to use them, and how to manage side effects. So there are a lot of good strengths for these antibody-drug conjugates, but a lot of unknowns that we're still trying to figure out. We had an older antibody-drug conjugate T-DM1 that we were all very familiar with that for years had been a treatment that we used very commonly in metastatic disease and now even use in early breast cancer, and I think has changed outcomes for patients. But over time, we've been able to develop newer antibody-drug conjugates as the technology has really evolved so that these agents now are able to deliver a lot of chemotherapy into a cancer cell. We're seeing very high drug-to-antibody ratios, and we're also seeing that these drugs can function via bystander effect, whereas T-DM1, for example, was not able to do that. But our newer ADCs, like sacituzumab govitecan or trastuzumab deruxtecan, are agents that do allow chemotherapy to get into that cancer cell, but also to get into neighboring cells. And I think the technology evolution in being able to build these so-called next-generation ADCs has allowed for really unprecedented efficacy that we've not seen before. And it's also allowed us to develop these drugs in a way that's been different. Originally, we were developing T-DM1 to turn off HER2 signaling and to deliver chemotherapy into a HER2 cell. At least that's what we thought originally. And now we're really evolving so that we can just find a tiny bit of protein on a cancer cell and use it as a target, really in a subtype-agnostic way. And I think it's just a different way of thinking about how to use these agents to really deliver a lot of chemotherapy into cancer cells and have very robust efficacy. Dr. Hope Rugo: Yes, it is fascinating that some of the suppositions that we made with the first ADC don't seem to really hold true as well. And maybe they hold true in varying levels for the different ADCs. For example, this bystander effect is thought to allow us to target cells that have very low expression of the receptor that can be internalized even lower than our ability to detect these receptors by immunohistochemistry. And maybe we'll talk about that in a little bit. But first, you mentioned already sacituzumab and trastuzumab deruxtecan, the ADCs that are currently approved for breast cancer. But can you tell us a little more about those ADCs and the key trials that have led to approval of these targeted agents? Dr. Sara Tolaney: Yes, I think when we first saw the data that came out with T-DXd and DESTINY-Breast01, I think my jaw dropped because I had never seen a waterfall plot like that. This was a single-arm study that looked at T-DXd in patients with very heavily pretreated metastatic HER2-positive breast cancer and saw very high response rates of over 60% and a clinical benefit rate of almost 98%, meaning that almost every single patient who got the drug and had a median of six prior lines of therapy had reduction in tumor size. And that's unreal. I think it was revolutionary in the sense that we had never seen that kind of activity in such a pretreated population. The agent was studied in other registration trials, DESTINY-Breast03, which looked at T-DXd and compared it head to head with T-DM1 in a predominantly second-line metastatic HER2-positive population, and here, again, unprecedented results. I've never seen a p value like that or a hazard ratio of, again unreal, of a little under 0.3 and seeing a 28-month PFS with T-DXd relative to just a little under 7 months PFS with T-DM1. We have never seen patients with metastatic HER2-positive breast cancer have a PFS that long. Even in CLEOPATRA, it's a little under 19 months in the first-line setting, where people were predominantly naïve to HER2-directed therapies. This, again, is really changing outcomes for patients. But then, I think, when we go to the next step, we studied T-DXd in patients with HER2-positive breast cancer and it had again these unprecedented results. But there was some early data suggesting that it could even work in tumors that weren't truly HER2-positive but what we call HER2-low, meaning that they weren't HER2/3+, they weren't HER2-0 but they were 1+ to 2+ and not FISH amplified. And so even with a little bit of protein there, they were seeing activity in the early phase studies and so it led to DESTINY-Breast04, which compared T-DXd to chemotherapy of physician's choice in people who had had one or two prior lines of chemotherapy in the metastatic setting. It was predominantly geared to look at outcomes in hormone receptor-positive breast cancer. But there was a small group of 58 patients with triple-negative disease that were also included in that trial. And here again, a very unprecedented outcome seeing a response rate of about 50%, which, again, we never see in pretreated hormone receptor-positive disease. And a PFS of 10 months, and again, these are people who already had one or two prior lines of chemotherapy. So it's, again, really changing outcomes. And so now I think it leads us to a lot of other questions that we are addressing in trials - can this drug work even if the tumor has maybe no HER2 expression, what about HER2-0, what about HER2-ultra low, meaning a little bit of staining but not quite 1+. And so these are questions that I think we will need to address and there are studies that will help us address that. On the flip side, we saw sacituzumab govitecan get developed in breast cancer. Initially, we saw very impressive results from a single arm study of sacituzumab in metastatic triple-negative disease where we saw response rates of a little over 30%. These are patients who were very heavily pretreated with metastatic triple negative breast cancer where, unfortunately, response rates end up being in a 5% range so it was a home run in that setting. So that led to the ASCENT trial, which compared sacituzumab govitecan to treatment of physician's choice therapy and that study really enrolled people who were, in essence, second line and beyond in the metastatic triple-negative setting and showed almost triple progression free survival, in essence, doubled overall survival. So again, very robust efficacy leading to confirming its approval. And then we saw data from TROPiCS-02, which looked at sacituzumab in metastatic hormone receptor-positive disease and also showed improvements in both progression free and overall survival. And this was in pre-treated populations of 2 to 4 prior lines of chemotherapy. These agents, again, have established robust efficacy, and so now the idea is can we move these drugs earlier in development into earlier line settings and can we even move these agents into the early disease setting and potentially cure more patients? So hopefully, we'll figure out ways to make that happen. Dr. Hope Rugo: Yeah, that was a great summary of this exciting data. And I think we really got an idea of what waterfall plots could tell us from DESTINY-Breast01 where you could count the number of patients whose cancers grew with therapy on one hand. It's been a huge advance. I think it's where we get this “revolution” even in patients with a median of 4 lines of prior chemo, and, in the ASCENT trial, we were able to see this improvement and survival in the hardest-treated subset of metastatic breast cancer triple negative disease. And then the remarkable data in HER2-positive and HER2-low breast cancer hormone receptor positive disease. We're really covering all of the subset of breast cancers. When we introduce new therapies though, and of course, our interest is moving them earlier as lines of therapy in the metastatic setting, we really have to think about the adverse events and how those are going to affect their patients, and balancing the risk benefit ratio. Obviously when the benefit is so huge, we're more thinking about how do we proactively manage these side effects, educate our patients, use prophylaxis when possible. Can you share with us some of your insights on management strategies for toxicities? Dr. Sara Tolaney: You bring up a very good point, and I will say the ADCs were designed with the idea being that we could deliver a ton of chemotherapy into a cancer cell. So obviously, my hope had been that we weren't going to see a lot of chemotherapy-like side effects because the goal was to try to spare normal cells of these side effects. But unfortunately, we do see that these agents do have real toxicities, and I think that is an important message. So, for example, with sacituzumab, for people who have hair going into it, they will lose their hair during the course of treatment, and so that's important to make patients aware of. It can lower blood counts, and about 50% of patients who are on sacituzumab will end up needing growth factor support while they're on treatment. So, that is again something that needs to be monitored and managed. But usually, we're pretty good at managing neutropenia, and with the growth factor support, I find that it actually works really well. Another thing with sacituzumab is the potential risk of diarrhea, but most of the diarrhea is low-grade diarrhea. It's rare that you get someone who has high-grade diarrhea with sacituzumab. Usually, I find it works to just instruct patients to use loperamide as needed. And again, usually that works well. And certainly when needed, dose modification can also help with these side effects and so it is important to keep in mind that this is another option. With T-DXd, one thing that we do have to keep in mind as an unusual side effect is the potential risk of interstitial lung disease. We see that in about 10% to 15% of patients getting T-DXd. That is something that we do have to be very mindful of. For the most part it is low-grade ILD. But there are rare occasions where there have been deaths from ILD. And we're seeing with some of the newer trials, the death rate is usually under 1%, but it is a real potential risk. And so it is really important to counsel patients when getting T-DXd about this potential side effect, that way they are good about communicating with you if they get any new symptoms, such as shortness of breath or dry cough, to get you aware of it and can work it up and get imaging certainly if that occurs. And then I think the management for ILD is a little unique and a little different truthfully than the way we manage pneumonitis from other drugs. Normally, when I am treating patients who develop pneumonitis, even if it is mildly symptomatic, we often will hold treatment, give steroids, and rechallenge them when it gets better. But with T-DXd, if anyone develops symptomatic pneumonitis, you actually have to permanently discontinue the T-DXd per the guidelines because we just don't know the safety of being able to rechallenge that patient once that pneumonitis resolves. For grade 1 ILD, meaning someone who has, for example, ground glass changes seen on imaging but doesn't have any symptoms, you have to hold the drug and wait until those imaging findings resolve and then you can restart. I usually do treat grade 1 ILD patients with steroids with the hope being that maybe it will allow for the pneumonitis to resolve more quickly, although in truth I don't know if that's the case. I have just taken that approach because I don't like leaving patients off the drug for too long if not needed. Again, I typically treat them with steroids, reimage in three to four weeks, and see if I'm able to restart. If they resolve within 28 days, you can restart at the same dose. If it takes longer to resolve, you need to dose modify. And then I think the other big thing with T-DXd is to know that it is categorized as a highly emetogenic agent. Most of us are using three-drug prophylaxis, which I think works really well. It is also important to realize that there can be some delayed nausea, which is a little unusual with some of our other agents. And so to warn patients about that and I find that use of olanzapine or ondansetron for the delayed nausea tends to work pretty well. Hope, do you have any pearls for us? Obviously, you are very experienced in using these agents; are there any things you would recommend for the management of ADCs? Dr. Hope Rugo: Yes, it's such a great question and an important area because, particularly as we are using these agents earlier, we really need to have strategies for both how long to continue as well as manage the toxicities. I agree with the nausea, olanzapine has been really a great addition, and using a triplet as initial premedication makes a big difference for T-DXd and other deruxtecan ADCs that are in the pipeline. And then I think that the ILD issue, we're really learning more about the risk factors as well as retreatment. And hopefully, we'll have more data this year at ESMO Breast and maybe ASCO on retreatment for grade 1. We certainly now do not have any data on the safety of retreatment for grade 2, so that is really not accepted now. For sacituzumab, I think the interesting area is the metabolism and the impact. So with neutropenia, as we move the drug earlier, it's easier and easier to manage, we see less severe neutropenia. We can give growth factors, which we are all good at in oncology. But I think the question about managing diarrhea and who is at risk still exists. Understanding pharmacogenomics and UGT1A1 is an interesting area where patients who have diarrhea could be tested to see if they are poor metabolizers which affects a little under 10% of the overall population. Because in that group, you could give less drug and get the same benefit with less toxicity. So I think this is all very interesting. It is important for providers and patients to be educated so that we can manage this appropriately. And I think you gave an excellent overview. We have new agents in the pipeline also and maybe we'll talk about those next, and then we'll talk a little bit about sequencing and resistance, as well as the unmet need for brain metastases. So lots of areas to talk about. There are a number of TROP-2 ADCs that are in the pipeline, and one that has presented phase III data, datopotamab deruxtecan. But other studies are being developed with new TROP-2 ADCs as well. But then there are a huge number of ADCs there with new targets, for example, immune effector targets, and new payloads, even immunotherapy and two different payloads or bispecific antibodies. And then there is interest in combining ADCs with immunotherapy and PARP inhibitors. We saw data in bladder cancer, I think it was bladder cancer, with combined 2 different ADCs at ESMO in 2023. So a lot of new approaches. How are we going to manage this moving forward? And where do you think we are going to position some of these next sort of "me-too" drugs? Dr. Sara Tolaney: It's an excellent question, and you're right, the field is exploding with new antibody- drug conjugates. So, it's going to leave us with this conundrum of what to do. And you brought up the really interesting example of the fact that we have an approved TROP-2 ADC, we have as sacituzumab govitecan, and for example, we've recently seen some really exciting data come out from TROPION-Breast01 looking at another TROP-2 ADC, datopotamab deruxtecan or Dato-DXd where that ADC performed better than chemotherapy in a head-to-head trial in terms of progression-free survival in a hormone receptor-positive population. Then there's another TROP-2 ADC, moving forward in development moving to phase III that Merck is developing MK-2870. All three of these ADCs are targeting TROP-2 and have a TOPO 1 payload. So, it leaves you with the question of how do you think about that? Is there going to be a role for using serial TROP-2 ADCs? Could one work after the other, even when they have very similar payloads? How are we going to incorporate them? How do you pick one over the other? So, it is going to be tricky for us as we get more and more of these agents. I think we're all excited about seeing ADCs that may have different targets and different payloads, where maybe we will see that sequential utilization will have robust efficacy if we swap things out. Again, we don't have data here yet, but I think there are other agents in development. For example, you could think of like, disitamab vedotin targets HER2 and has an MMAE payload. So, could it be that someone progresses on T-DXd for HER2-low, but then could go on to disitamab vedotin? How will that work? So, we have a lot to learn, but it's really nice to have so many options. Dr. Hope Rugo: Yeah, it'll be interesting to see whether or not we select the ADC based on a rational understanding of the tumor and the patient, or whether it's simply what's easier to give and has the right toxicity for that patient. So, that sort of brings us to our next topic, which is how are we going to sequence these agents? How are we going to understand the mechanisms of ADC resistance? At San Antonio in 2023, we saw a presentation where there was a top-alteration, and the patient had a really long response to a top-directed ADC, or an agent that carried a topoisomerase inhibitor. And that really struck me that we're going to see these alterations. There was a fresh autopsy study that suggested that the alterations may be different in different organ sites of disease. How are we going to figure this out? Dr. Sara Tolaney: Yeah, I also was really puzzled to see those data from San Antonio where we've sort of simplified ADC resistance in our heads to say, well, maybe someone becomes resistant because they lose target expression, or maybe someone becomes resistant because they've developed resistance to the payload, kind of like the way we think of someone developing resistance to getting chemotherapy. But obviously, it's probably far more complex than that. With these ADCs, they need to be able to internalize the ADC and could there be mechanisms of resistance related to the internalization process? So, I think there are lots of potential areas where resistance could be occurring. I think, we don't understand it very well. We've seen patients, for example, who have responded. This is just anecdotal, but we have data, for example looking at, Dato-DXd in the phase 1 triple-negative study where there were some patients who responded despite having progressed on sacituzumab. Well, why is that? You would think if it's target resistance or payload resistance, it would be the same target and a very similar payload. So, why would those drugs work one after the other? And that's why I think we just don't understand this well enough at this point in time. So, it's clearly an area where more research is needed because it does have significant implications on how we think about using these drugs sequentially. We will need to understand these resistance mechanisms because there do seem to be some rare patients who benefit from these sequencing strategies and then others who don't. So, it would be nice to be able to figure this out and hopefully in the future, we'll be able to test patients and know what drugs to give them. But I think we're far off from that, unfortunately, right now. Dr. Hope Rugo: Yeah, it does seem to be a relatively elusive approach, and I think, in part, it's due to the heterogeneity of cancer. And maybe, as we're better and better at analyzing tumor cells in the blood, which are a rare group, and ctDNA, which, of course, we do now to look for mutations, maybe that'll be an approach that we'll be able to take. And also, of course, moving the drugs earlier into the disease setting with less heterogeneity and mechanisms of resistance might help as well. I was fascinated by the fact that although the PFS to the first ADC seems to be overall much greater than the PFS to the second ADC, when you sequence them, there are a few patients who have a longer PFS with the second, even if these are just sacituzumab T-DXd sequencing in various directions. So, it's clearly very complex. And right now, I think we're just sequencing and we don't really know how to do it. We just choose what we think is best for that patient first and go on to the next one later, which is interesting. And one of the choices might be treating brain metastases, which of course remains a huge unmet need. And if we could find effective treatment for brain metastases, maybe we could also prevent them in some patients more. What do we know about the central nervous system (CNS) penetration of ADCs and the clinical results? Dr. Sara Tolaney: At first, we were not optimistic that these drugs would have activity in the brain because we thought that these were very large agents that probably couldn't penetrate into the blood-brain barrier. But in fact, I think we were all very excited to see that there is actually data suggesting that these drugs can actually have robust efficacy in the CNS in patients who have active brain metastases. And so what we've seen so far is data with trastuzumab deruxtecan or T-DXd, there have been some trials that have been done, including studies like DEBRA and TUXEDO, which have looked at T-DXd in patients who have active brain metastases and are showing very robust response rates within the CNS. So, we're seeing intracranial response rates on the order of 40% to 50%. And clinically, this is what we're seeing as well. These are smaller studies and there's a larger trial, DESTINY-Breast12, which will hopefully validate the robust efficacy in the CNS with T-DXd. So, again, it's really nice to see this. To your point, though, one area that I'm curious about, as you were alluding to, is will these drugs be able to prevent CNS disease? And I think that is a very different question because here the blood-brain barrier is not intact when patients have progressive brain metastases, and so these ADCs are causing robust activity. But if you look, for example, and I'll be curious to see what happens, DESTINY-Breast05 is looking at T-DXd in the post preoperative setting for patients who have residual disease and comparing it to T-DM1. And unfortunately, we saw that T-DM1 was not able to prevent brain metastases when looking at data from KATHERINE, where in fact, rates of CNS as the first site of recurrence were similar with T-DM1 and trastuzumab. So, now we'll be interested to see, will it be any different with T-DXd? Will T-DXd be able to have any role in prevention? I think we haven't seen anything like that with ADCs to date, so that would be a paradigm shift in our way of thinking. Right now, there are strategies being taken from a prevention standpoint of trying to add a tyrosine kinase inhibitor in that early-stage setting, such as what is being done in the COMPASS-RD trying to add tucatinib to T-DM1 to see if that would do it. But again, we really need to understand, again, how these drugs work, particularly when the blood-brain barrier may not be intact. But again, very exciting data with T-DXd in an ongoing trial, actually through SWOG looking at sacituzumab for patients with CNS disease. And we've seen some preliminary data with sacituzumab showing that it actually does penetrate into the brain when they've looked at drug levels in the tumor in the brain, comparing it to plasma, it actually looks similar. So, we know it's getting in there and we'll have more robust efficacy data, hopefully coming soon. Dr. Hope Rugo: Yeah, that was a great summary of that data. It's been exciting also to see some responses in patients with leptomeningeal disease as well, where we've really been struggling with anything that works for more than a few weeks or months at the most. So I'm holding out great hope that we're going to see a big difference because even though TDM-1 had some efficacy, it was nothing like what we're seeing with T-DXd. So we'll see. And the same with sacituzumab with triple negative disease, where sometimes brain metastases can be an isolated site of recurrence, even in patients who have a pathologic complete response. So it has been a big challenge. So I think that what we've learned from you is a lot about the mechanisms and the data about these new ADCs, the tremendous hope that these are bringing to our patients, but also the really exciting new approaches with new payloads, new targets of drugs that are in development, as well as potentially some different ADCs that have the same target and similar mechanisms of action of this payload. Really fascinating to hear about this, the future work on sequencing, on mechanisms of resistance, and on brain metastases. We have, of course, 2 prospective trials that we'll be looking at sequencing, one with T-DXd and Dato-DXd, and one registry trial with T-DXd and sacituzumab govitecan in the US. So that's also going to, I think, provide us with some important information. We could talk for a long time about this, but I just wonder if you have any closing comments to sum up your thoughts. Dr. Sara Tolaney: I think you did a great job leading us through thinking about ADCs, and I think it'll be really interesting to see what happens in the future. While again, these agents have become a standard for us for patients with metastatic disease, I'm going to be curious to see how everything evolves and to see if we'll be able to substitute chemotherapy with ADCs in early disease settings and change outcomes. Will we be able to have novel combinations? Will we be able to sequence these drugs one after another? Will we actually have biomarker predictors to help us sort out which drug to give when? So, still a lot to learn, but clearly a very exciting field right now. Dr. Hope Rugo: Indeed. Sara, thank you for sharing your valuable insights with us today on the ASCO Daily News Podcast on your great work to develop novel therapies for breast cancer. It's always a pleasure to talk to you, and even greater to work with you on the future progress of treatment for breast cancer. Dr. Sara Tolaney: Thank you so much, Hope. Again, really nice to always discuss these data with you. I always learn a lot, so thank you. Dr. Hope Rugo: Thank you. And thank you to our listeners for joining us today. You'll find a link to all of the studies discussed today in the transcript of this episode. Finally, if you value the insights that you hear on the ASCO Daily News Podcast, please take a moment to rate, review, and subscribe wherever you get your podcasts. Disclaimer: The purpose of this podcast is to educate and inform. This is not a substitute for professional medical care and is not intended for use in the diagnosis or treatment of individual conditions. Guests on this podcast express their own opinions, experiences, and conclusions. Guest statements on the podcast do not express the opinions of ASCO. The mention of a product, service, organization, activity, or therapy should not be construed as an ASCO endorsement. Follow today's speakers: Dr. Hope Rugo @hoperugo Dr. Sara Tolaney @stolaney1 Follow ASCO on social media: @ASCO on Twitter ASCO on Facebook ASCO on LinkedIn Disclosures: Dr. Hope Rugo: Consulting or Advisory Role: Napo Pharmaceuticals, Puma Biotechnology, Mylan, Eisai, Daiichi Sankyo Research Funding (Inst.): OBI Pharma, Pfizer, Novartis, Lilly, Genentech, Merck, Daiichi Sankyo, Sermonix Pharmaceuticals, AstraZeneca, Gilead Sciences, Astellas Pharma, Talho Oncology, Veru, GlaxoSmithKline, Hoffmann-LaRoche AG/Genentech, Inc, Stemline Therapeutics Travel, Accommodations, Expenses: Merck, AstraZeneca Dr. Sara Tolaney: Consulting or Advisory Role: Novartis, Pfizer, Merck, AstraZeneca, Genentech, Eisai, Sanofi, Bristol-Myers Squibb, Seattle Genetics, CytomX Therapeutics, Daiichi Sankyo, Immunomedics/Gilead, BeyondSpring Pharmaceuticals, OncXerna Therapeutics, Zymeworks, Zentalis, Blueprint Medicines, Reveal Genomics, ARC Therapeutics, Umoja Biopharma, Menarini/Stemline, Aadi Bio, Artio Biopharmaceuticals, Incyte Corp, Zetagen, Bayer, Infinity Therapeutics, Jazz Pharmaceuticals, Natera, Tango Therapeutics, Systimmune, eFFECTOR Therapeutics, Hengrui Pharmaceutical (USA), Sumitovant Biopharma Research Funding (Inst.): Genentech/Roche, Merck, Exelixis, Pfizer, Lilly, Novartis, Bristol-Myers Squibb, Eisai, AstraZeneca, NanoString Technologies, Seattle Genetics, OncoPep, Gilead Travel, Accommodations, Expenses: Eli Lilly, Sanofi, Gilead Sciences

Unlocking the Potential of HER2-Targeted Therapy: Breakthroughs in NSCLC Therapeutic Approaches

ReachMD CME

Play Episode Listen Later Feb 9, 2024

CME credits: 0.25 Valid until: 28-02-2025 Claim your CME credit at https://reachmd.com/programs/cme/unlocking-the-potential-of-her2-targeted-therapy-breakthroughs-in-nsclc-therapeutic-approaches/16213/ Dr. Helena Yu of Memorial Sloan Kettering Cancer Center presents an insightful overview of HER2 targeted therapy in non-small cell lung cancer (NSCLC), emphasizing the critical role of broad molecular profiling in ensuring effective treatment, particularly for the 2-4% of NSCLC patients with HER2 mutations. Dr. Yu highlights the effectiveness of newer antibody–drug conjugates (ADCs) such as trastuzumab deruxtecan (T-DXd) for NSCLC with HER2 mutations, while also detailing identification and management of potential side effects. Through a patient engagement vignette, she underscores the importance of aligning treatment choices with patient and clinician goals, highlighting shared decision-making in managing HER2-mutant NSCLC.=

unlocking approaches breakthroughs therapeutic yu cme rmd memorial sloan kettering cancer center her2 targeted therapy nsclc adcs reachmd cme/ce oncology and hematology t dxd pathology and lab medicine prova education pathology and laboratory medicine

S1 Ep92: Managing CDK4/6 Inhibitor, ADC Toxicity in Metastatic Breast Cancer

university california san francisco managing mph toxicity np donahue aes inhibitor metastatic breast cancer adcs cdk4 oncology nursing society enhertu t dxd

Play Episode Listen Later Jan 15, 2024 22:10

In a conversation with CancerNetwork®, Sarah Donahue, MPH, NP, discussed strategies for managing adverse effects (AEs) associated with different drug classes for patients with metastatic breast cancer, ranging from antibody drug conjugates (ADCs) to CDK4/6 inhibitors. With respect to ADCs, Donahue, a nurse practitioner at University of California, San Francisco, and member of the Oncology Nursing Society, highlighted common AEs following treatment with trastuzumab deruxtecan (T-DXd; Enhertu) and sacituzumab govitecan-hziy (Trodelvy). In particular, she spoke about the necessity of managing nausea associated with T-DXd by helping patients schedule doses with antiemetic drugs, as well as mitigating fatigue and improving quality of life in the process. For those who are treated with sacituzumab govitecan, Donahue spoke about mitigating abdominal cramping at her infusion center and administering loperamide to help patients manage acute diarrhea. Donahue also discussed her methods for managing toxicity related to CDK4/6 inhibitors including palbociclib (Ibrance), ribociclib (Kisqali), and abemaciclib (Verzenios). Among patients with hormone receptor (HR)–positive breast cancer, treatment with palbociclib and ribociclib, when given in combination with hormonal therapy, may result in fatigue, hot flashes, and arthralgia. According to Donahue, encouraging patients to exercise often may combat fatigue while mitigating arthralgia associated with an aromatase inhibitor. Moreover, she stated that loperamide may help manage potential diarrhea following treatment with abemaciclib. Overall, Donahue underscored the importance of keeping patients on treatments with CDK4/6 inhibitors and other treatments by being communicative with them regarding the potential to alleviate AEs. She suggested that such openness may give patients the confidence to ask providers for guidance on how to manage their disease. “The main thing that I find most helpful for my patients is to explain the potential [adverse] effects, explain that there's something that we can do about them—that we can intervene. If they reach out to us sooner, we can help them more,” Donahue concluded. “I hope that the providers who are listening to this now can help to empower their patients to reach out and to ask for advice. That's the best thing that they can do to keep them on these medications longer. They can work well; we can show that in studies. But if we can't keep [patients] on the medications, then what are we doing?”

S1 Ep91: HER2CLIMB-02 Trial Shows ‘Interesting Data' in HER2+ Breast Cancer

Play Episode Listen Later Jan 9, 2024 12:33

In a recent conversation with CancerNetwork®, Sara A. Hurvitz, MD, FACP, senior vice president and director of the Clinical Research Division at Fred Hutch Cancer Center and head of the Division of Hematology and Oncology at the University of Washington Department of Medicine, discussed new treatment options for patients with metastatic HER2-positive breast cancer. In the discussion, Hurvitz highlighted findings from the phase 3 HER2CLIMB-02 trial (NCT03975647), which assessed the efficacy and safety of tucatinib (Tukysa) plus ado-trastuzumab emtansine (Kadcyla; T-DM1) in patients with HER2-positive breast cancer, specifically those with brain metastases. Patients enrolled in this trial experienced a significant improvement in progression-free survival (PFS) with the tucatinib-based regimen. Data presented at the 2023 San Antonio Breast Cancer Symposium (SABCS) highlighted that the median time to disease progression or death was 9.5 months (95% CI, 7.4-10.9) and 7.4 months (95% CI, 5.6-8.1 in the experimental arm and placebo arm, respectively (HR, 0.76; 95% CI, 0.61-0.95; P = .0163). In patients with brain metastases, the median time to disease progression or death was 7.8 months (95% CI, 6.7-10.0) and 5.7 months (95% CI, 4.6-7.5) in the experimental arm and placebo arm, respectively (HR, 0.64; 95% CI, 0.46-0.89). Investigators reported that toxicity in the experimental arm was generally manageable and reversible. “This was a study that only enrolled patients who were naive to trastuzumab deruxtecan [T-DXd; Enhertu],” Huvitz said. “We know that T-DXd has substantial improvements in PFS and survival, so having so many patients receive this [agent] after progression is certainly going to impact our ability to observe survival differences. About 15% of patients in each arm also went on to receive tucatinib. These are pretty exciting results for our patients, especially those with brain metastases. This study did enroll, as I said, patients with brain metastases, who comprised 44% or so of the entire population enrolled in this study. These are interesting data, and we'll see if this regimen is ultimately approved.” Reference Hurvitz SA, Loi S, O'Shaughnessy J, et al. HER2CLIMB-02: randomized, double-blind phase 3 trial of tucatinib and trastuzumab emtansine for previously treated HER2-positive metastatic breast cancer. Presented at the 2023 San Antonio Breast Cancer Symposium; December 5-9, 2023; San Antonio, TX. Session GS01-10.

university data medicine trial patients md tx san antonio breast cancer investigators oncology hematology her2 pfs washington department san antonio breast cancer symposium enhertu t dxd t dm1 clinical research division kadcyla

Gynecologic Cancers | Oncology Today with Dr Neil Love: Role of HER2-Directed Therapy in the Treatment of HER2-Expressing Gynecologic Cancers — Part 1 of a Special 3-Part Edition

therapy treatments directed crohn oncology prevalence cme incidence her2 ihc ild gynecologic cancers trastuzumab neil love t dxd

Play Episode Listen Later Dec 20, 2023 65:22

Featuring an interview with Dr David M O'Malley, including the following topics: Prevalence of HER2 positivity among various gynecologic cancer subtypes; current testing recommendations (0:00) Trastuzumab and other HER2-targeted therapies as a component of treatment for HER2-positive gynecologic cancers (15:17) Key efficacy outcomes achieved with trastuzumab deruxtecan (T-DXd) among patients with advanced ovarian, endometrial and cervical cancers in the DESTINY-PanTumor02 study (18:05) Incidence of interstitial lung disease (ILD) and other toxicities with T-DXd in the DESTINY-PanTumor02 trial; strategies to manage ILD associated with HER2-directed antibody-drug conjugates (27:59) Case: A woman in her mid-60s with HER2-low (IHC 1+) recurrent uterine carcinosarcoma receives T-DXd on a clinical trial (34:26) Case: A woman in her mid-70s with recurrent uterine serous cancer and history of Crohn's disease (51:05) Case: A woman in her mid-60s with Stage IIIC primary uterine serous cancer receives carboplatin/paclitaxel/trastuzumab followed by maintenance trastuzumab with no evidence of disease 4 years later (56:50) CME information and select publications

S1 Ep88: Joleen Hubbard, MD, Highlights The “Exciting Space” Of Metastatic CRC

Oncology for the Inquisitive Mind

Play Episode Listen Later Dec 11, 2023 9:03

In a recent discussion with CancerNetwork®, Joleen Hubbard, MD, research collaborator with Mayo Clinic and deputy director for clinical research at Allina Health Cancer Institute in Minneapolis, Minnesota, discussed new opportunities for patients with colorectal cancer (CRC). In the discussion, Hubbard highlighted the potential of trastuzumab deruxtecan-nxki (Enhertu; T-DXd) in patients with HER2-expressing metastatic CRC based on studies including the phase 2 DESTINY-CRC01 trial (NCT03384940), which assessed the efficacy and safety of the agent in those who progressed after 2 or more prior regimens.1 These trials may play a role in continuing HER2 inhibition downstream after the FDA approval of trastuzumab (Herceptin) plus tucatinib (Tukysa) in patients with metastatic HER2-positive CRC.2 Hubbard also discussed the phase 3 MOUNTAINEER-03 study (NCT03043313) and its effects in the CRC space.3 This trial assessed the safety and efficacy of frontline tucatinib and trastuzumab in patients with treatment-refractory, RAS wild-type, HER2-positive metastatic CRC. Primary endpoints for this analysis showed a clinically meaningful overall response rate of 38.1% and a median duration of response of 12.4 months. Additionally, the treatment combination was well tolerated. She said she is “optimistic” that moving HER2-directed therapy to the first-line setting, as seen in the MOUNTAINEER-03 study, may help outcomes for patients with metastatic CRC. “It's a very exciting space,” Hubbard said. “Because it's only 5% to 8% of patients [who have CRC], it may not get as much attention, but there's 150,000 new cases of [CRC] diagnosed each year. So, 5% to 8% of that is a large number of patients [whom] we need to be looking at, studying, and potentially impact with these treatments.” References Yoshino T, Di Bartolomeo M, Raghav K, et al. Final results of DESTINY-CRC01 investigating trastuzumab deruxtecan in patients with HER2-expressing metastatic colorectal cancer. Nat Commun. 2023;14(1):1-13. doi:10.1038/s41467-023-38032-4 Seagen announces FDA accelerated approval of Tukysa (tucatinib) in combination with trastuzumab for people with previously treated RAS wild-type, HER2-positive metastatic colorectal cancer. News release. FDA. January 19, 2023. Accessed December 6, 2023. https://bwnews.pr/3Xpzbqn Bekaii-Saab TS, Van Cutsem E, Tabernero J, et al. MOUNTAINEER-03: phase 3 study of tucatinib, trastuzumab, and mFOLFOX6 as first-line treatment in HER2+ metastatic colorectal cancer—Trial in progress. J Clin Oncol. Published online January 24, 2023. doi:10.1200/jco.2023.41.4_suppl.tps261

space news minnesota trial md minneapolis exciting fda primary published mayo clinic hubbard ras mountaineer crc metastatic her2 herceptin nat commun enhertu j clin oncol t dxd

69. ESMO 2023 - Metastatic Breast Cancer

Play Episode Listen Later Oct 24, 2023 31:49

Michael and Josh continue their examination of the crème-de-la-crème of the European Society of Medical Oncology conference of 2023. Today they focus on metastatic breast cancer, with a particular focus on antibody-drug conjugates (ADCs). T-Dxd, Dato-Dxd and trastuzumab duocarmazine are just three of the many novel agents in this space, and likely represent part of the future (and the present) of medical oncology. How effective are these treatments? Will the final results of the TULIP study blossom like its namesake? Will T-Dxd fulfil its DESTINY and become a treatment option for HER-2 low advanced breast cancer? Will Dato-Dxd assist in making cancer BEGON(IA)? For more excellent puns and the answers to these questions and more, listen on!Studies discussed in this episode. Subscription may be requiredTrastuzumab deruxtecan (T-DXd) versus treatment of physician's choice (TPC) in patients (pts) with HER2-low unresectable and/or metastatic breast cancer (mBC): Updated survival results of the randomized, phase III DESTINY-Breast04 study https://esmocongress.esmo.org/esmo/esmo2023/en-GB/presentation/637914Datopotamab deruxtecan (Dato-DXd) + durvalumab (D) as first-line (1L) treatment for unresectable locally advanced/metastatic triple-negative breast cancer (a/mTNBC): Updated results from BEGONIA, a phase Ib/II study https://esmocongress.esmo.org/esmo/esmo2023/en-GB/presentation/637972Trastuzumab duocarmazine versus physician's choice therapy in pre-treated HER2-positive metastatic breast cancer: Final results of the phase III TULIP trial https://esmocongress.esmo.org/esmo/esmo2023/en-GB/presentation/637983First results of the SOLTI-1903 HOPE's patient-centric molecular screening program in advanced breast cancer https://esmocongress.esmo.org/esmo/esmo2023/en-GB/presentation/637984For more episodes, resources and blog posts, visit www.inquisitiveonc.comPlease find us on Twitter @InquisitiveOnc!If you want us to look at a specific trial or subject, email us at inquisitiveonc@gmail.comArt courtesy of Taryn SilverMusic courtesy of Music Unlimited: https://pixabay.com/users/music_unlimited-27600023/Disclaimer: This podcast is for educational purposes only. If you are unwell, seek medical advice. Hosted on Acast. See acast.com/privacy for more information.

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Trastuzumab Deruxtecan Benefits Patients with HER2-Low Metastatic Breast Cancer Irrespective of ER Expression

Oncology Times - OT Broadcasts from the iPad Archives

Play Episode Listen Later Aug 22, 2023 11:43

Although T-DXd had already been licensed for use in all categories of HER2 positivity, including patients with so-called HER2-low tumors (defined as having immunohistochemical score of 1+ or 2+ with non-amplified in-situ hybridization), doubts have remained about the effectiveness of this antibody drug conjugate in the subset of such patients who also have low expression of the estrogen receptor, ER (having ER expression from 1-10%). At the ESMO Breast Cancer 2023 conference a sub-study analysis of the DESTINY-Breast04 Phase III study was reported that specifically addressed this topic. OncTimesTalk reporter, Peter Goodwin, asked David Cameron, MD, about his group’s findings on the effectiveness of T-DXd in ER-low metastatic breast cancer, and about the context and overall potential of using antibody drug conjugates in breast cancer. Cameron is Professor of Oncology at Edinburgh University and a joint lead for the Edinburgh Experimental Cancer Medicine Centre.

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HER2 Testing in Breast Cancer: ASCO-CAP Guideline Update

ASCO Guidelines Podcast Series

Play Episode Listen Later Jun 7, 2023 24:56

Dr. Antonio Wolff and Dr. Kim Allison discuss the latest ASCO-CAP guideline update on HER2 testing in breast cancer. This guideline update affirms previous recommendations, and provides commentary based on data from the DESTINY-Breast04 trial. Dr. Wolff and Dr. Allison review the questions from the oncology and pathology community raised by these results, and provide commentary on patients with HER2 IHC 1+ and 2+ and ISH-negative metastatic breast cancer. Read the guideline update, "Human Epidermal Growth Factor Receptor 2 Testing in Breast Cancer: ASCO-CAP Guideline Update" at www.asco.org/breast-cancer-guidelines. TRANSCRIPT This guideline, clinical tools, and resources are available at www.asco.org/breast-cancer-guidelines. Read the full text of the guideline and review authors' disclosures of potential conflicts of interest disclosures in the Journal of Clinical Oncology, https://ascopubs.org/doi/10.1200/JCO.22.02864 Brittany Harvey: Hello and welcome to the ASCO Guidelines Podcast, one of ASCO's podcasts delivering timely information to keep you up to date on the latest changes, challenges, and advances in oncology. You can find all the shows, including this one, at asco.org/podcasts. My name is Brittany Harvey, and today I am interviewing Dr. Antonio Wolff from Johns Hopkins Sidney Kimmel Comprehensive Cancer Center and Dr. Kim Allison from Stanford University School of Medicine, co-chairs on ‘Human Epidermal Growth Factor Receptor 2 Testing in Breast Cancer: ASCO-CAP Guideline Update'. Thank you for being here, Dr. Wolff and Dr. Allison. Dr. Antonio Wolff: Thank you. Dr. Kim Allison: Thanks for having us. Brittany Harvey: Then, before we discuss this guideline, I'd like to note that ASCO takes great care in developing its guidelines and ensuring that the ASCO conflict of interest policy is followed for each guideline. The disclosures of potential conflicts of interest for the full guideline panel, including our guests on this episode today, are available online with the publication of the guideline and the Journal of Clinical Oncology, linked in the show notes. So now jumping into the content, to start us off, Dr. Wolff, what prompted the update expert panel to revisit the 2018 ASCO-CAP recommendations on HER2 testing and breast cancer, and what is the scope of this update? Dr. Antonio Wolff: Thank you, Brittany. We appreciate the opportunity of being with you today, and it's great to be here with my colleague, Dr. Kim Allison, as well. What triggered this informatory update was the release from data in trial DESTINY-Breast04, which tested the antibody-drug conjugate trastuzumab deruxtecan in patients who in the past would have been considered to have HER2-negative disease. This ADC, trastuzumab deruxtecan, has a topoisomerase inhibitor payload that is linked to the antibody trastuzumab. And in the past, from all the previous data we had, trastuzumab alone, or in combination with chemotherapy, or as part of another antibody-drug conjugate T-DM1 was essentially active in patients with HER2-positive disease, which is traditionally defined as having overexpression of the HER2 protein, which almost by default is a result of gene amplification of the HER2 gene. And what data from initial studies appear to suggest is that patients who would not be traditionally considered HER2-overexpressed or HER2-amplified were potentially benefiting or having evidence of clinical activity against this disease in the study of metastatic disease. And this was a randomized clinical trial for patients with metastatic breast cancer whose tumors were centrally determined to have IHC 1+ or IHC 2+ expression and would not have been called HER2-positive, would not have been called HER2-overexpressed. And for the tumors that were HER2 2+, they also had to have absence of gene amplification by an in-situ hybridization assay. And what was very interesting is that there was a meaningful, clinically significant improvement in survival for that patient population. And that has some clinicians to begin asking whether there is a different subset of patients who would have in the past been called as having HER2-negative disease that now could potentially be a candidate for this drug. And is there a difference between these patients and patients who, in the past, would have been called as HER2-negative on the basis of IHC 0? And so what complicated things for us a little bit is that patients with IHC 0 were not eligible for this trial. And what is left unanswered by this clinical trial is whether all patients who don't have HER2 protein overexpression or HER2 gene amplification would potentially have benefited from this drug. Kim? Dr. Kim Allison: Yeah, agree. I think the main impetus for the update was the exciting results from the DESTINY-Breast04 trial and the questions then that the pathology community and the oncology community had about whether this should change HER2 testing guidelines. Brittany Harvey: I appreciate that background on what prompted the panel to revisit this guideline. So then, Dr. Allison, how did the panel come to the conclusion that the previous recommendations are current and valid? Dr. Kim Allison: Right. So, as Antonio mentioned, the whole reason HER2 testing was first initiated was HER2-targeted therapies that showed response in the overexpressed or amplified tested population. And so guidelines have really been fine-tuned and crafted around distinguishing the HER2-positive for over-expression and amplification from negative. And this trial really questioned that in that maybe we can target lower levels of the HER2 protein, but this assay really wasn't designed for that. So we looked at the data from the trial and some of the limited other data that's out there and really came to the conclusion that, look, everyone in DESTINY-Breast04 benefited. The whole population benefited, whether you were 1+ or 2+. And because 0s were excluded from the trial, we don't know if they benefited. So we thought it was premature to create a new category, a new result category, and change our current reporting to a HER2-low category, mainly because we don't know that there's a new predictive threshold for response to treatment. So essentially, what we've got is a trial that showed great benefit but didn't create a new biomarker that is predictive or prognostic. Instead, it repurposed this older test as a trial entry criteria. And so now we're kind of stuck with 1+ or 2+ ISH negative as their trial entry criteria that gives you eligibility for trastuzumab deruxtecan. So essentially, we reaffirmed our prior recommendations with acknowledgment that what these categories: positive, equivocal, and negative, refer to is for protein overexpression or gene amplification and that we should continue to use the same scoring criteria, 1+, 2+, 0, and interpretation as were used in DESTINY-Breast04 for their clinical trial criteria. But awareness is important. Dr. Antonio Wolff: Yeah, the other thing that I would add, Brittany, I think we need to go back to what was the purpose of HER2 testing back in 1998 when we identified the survival benefit from trastuzumab in metastatic disease. And then, in 2005, when we had evidence of adjuvant benefit in improving disease-free and then overall survival for patients with early-stage disease. And the immunochemistry assays at that time were developed to differentiate between patients who had HER2 overexpressing disease or HER2 gene amplified disease versus not. At that moment, it was clearly identified that patients were considered as having HER2-positive disease that defined a biological entity, a tumor subtype, a group of patients who had worse prognoses in the absence of therapy. But then when they were treated with, for instance, chemotherapy with anthracyclines at that time, but then with HER2 targeted therapies with antibodies, these patients that otherwise would have a poor prognosis now were having an improved outcome. HER2 was a marker of poor prognosis but also a marker of a good chance of deriving clinical benefit, so there was a predictive benefit. And everything else, IHC 0, 1 or 2+, ISH-negative, there has been no evidence that targeting the HER2 pathway was clinically important. Or even more meaningful, there was no evidence that these patients have– within the subset of patients that don't have HER2 positive or overexpressing disease - there has been no evidence that those patients have a different outcome based on low levels of expression of HER2. A couple of years ago, in terms of trastuzumab, the NSABP reported findings in the data from NSABP B-47 where the antibody trastuzumab was added to chemotherapy to patients who were considered to have low levels of IHC expression, and in that case, was IHC 1+ or IHC 2+ gene non-amplified. And that settled the issue for sure, that there was absolutely no benefit in the adjuvant setting from the addition of trastuzumab. So we know that there's something different going on here. We know that if you now combine trastuzumab with a specific payload, in this case, the drug deruxtecan, which is a topoisomerase inhibitor, we are potentially targeting the HER2 protein. But these are tumors that are not considered HER2 addicted. These are not tumors whose biology is dependent on the HER2 pathway, so this is simply a better drug delivery. And in this sense, data and evidence from Michael Press, a pathologist at USC that has done some seminal work with HER2 and HER2 testing, he once proposed that the vast majority of breast cancers have some level of HER2 present. And a lot of what is considered IHC 0 is an artifact related to suppression of the detection of the HER2 protein. So there's a chance that the tumors that are truly HER2 negative or HER2 0 are going to be a very small proportion. And IHC assays were never optimized to measure very low levels of HER2. They just don't have the dynamic range for that. And then, from a clinical standpoint, there is no evidence that different levels of HER2 when, in the absence of overexpression, identify groups of patients that have disease that have a different biologic behavior. And I think, as Dr. Allison just mentioned, we don't have any evidence from the DESTINY-Breast04 trial that there is a differential benefit between IHC 1+ versus IHC 2+, ISH-negative. Those patients appear to equally benefit from therapy. Brittany Harvey: Understood. That context is helpful in understanding this updated guideline. So then you've both mentioned the category of patients who are HER2 IHC 1+ and 2+, and ISH-negative. So, Dr. Allison, this article includes a special commentary on those patients, those with HER2 IHC 1+ or 2+, and ISH-negative metastatic breast cancer. What are the essential points of this commentary? Dr. Kim Allison: Yeah. So some of them we've brought up already that this test for HER2 IHC wasn't really designed to detect the low levels of protein expression that may be present in some breast cancers, including the all-important issue that the IHC 0s may not be truly null for HER2, that we may just not be sensitive enough to detect it, or there may be fixation and ischemia, time issues that are very subtle and create a false negative result, essentially by IHC that, and that in addition to not being necessarily predictive or prognostic, the 0 versus 1+ threshold, which really is a threshold that hasn't been tested yet. But since eligibility for trastuzumab deruxtecan essentially now hinges around that 0 versus 1+ threshold, since these were clinical trial entry criteria, what can pathologists do to make best practice efforts to distinguish 0 from 1+? Because we felt like we should make some helpful recommendations, at least since this does appear to be a current status point that pathologists are going to be struggling with in practice. So the points we come up with in that commentary are to follow best practices, like making sure you're using the standardized ASCO-CAP Guidelines criteria. Making sure you pay attention to pre-analytic conditions of the tissue sample and that you're using controls with a range of protein expression, including 1+, to help ensure you've got an assay that's really looking at the right limit of detection since that has shifted somewhat in this instance. And then for interpretation side, for pathologists to be sure to look on high power, so discriminating at 40x when you're trying to score a 0 versus 1+ stain since that's now relevant, you're going to need to go on high power and really distinguish from those two. And then, consider a second pathologist review in borderline or challenging cases or perhaps using additional tools. There's some additional tools online. There are learning sets that are out there to help with that distinction. Dr. Antonio Wolff: What I would add to that is that I think, and Kim, I'm thinking of the pathologist now getting phone calls from oncologists saying, “Hey, Doctor Pathologist, you report this cancer as being IHC 0, and are you sure that this is truly IHC 0?” And I think we need to be careful not to put pathologists in an unfair situation. And I think we also need to be careful based on our behavior as oncologists that we could almost cause the extinction of the diagnosis of IHC 0 if pathologists feel somehow compelled to “try to help the oncologists” and potentially call a tumor that they would otherwise have called IHC 0, that they call that tumor IHC 1+. And I think the reason for being cautious, as Kim mentioned, is these assays were not optimized for the ability to truly distinguish between IHC 0 and 1+. And we do not know if tumors that are IHC 0 clinically behave differently from tumors IHC 1+. Right now, that does not appear to be the case. And I think to a degree, we are being forced, based on the decision by the study sponsors to launch a study that excluded patients of IHC 0. We are left, I often say, twisting ourselves into pretzels, trying to come up with a way to discriminate between IHC 0 and 1+ simply because of the eligibility of the clinical trial and now the resulting FDA label for the study. Because it is plausible that what if patients who had tumors that were IHC 0 had been included in this clinical trial? And what if we had determined that those patients also benefited from this new exciting antibody-drug conjugate? In that case, we would not be talking about creating new categories of HER2 low versus HER2 “ultra-low” and HER2 0, HER2 null. Because essentially, we would have identified a new clinical use for this exciting antibody-drug conjugate for patients who have tumors that are HER2 not overexpressed and HER2 not amplified. So, in fact, it is entirely plausible that the population of patients that could benefit from this antibody may go well above the original intent of DESTINY-Breast04. We just don't have the evidence at this point to say that those patients who would be called IHC 0 don't benefit. It's just that they were not included in the clinical trial. Brittany Harvey: Well, your points there from both of you lead nicely into my next question, in that you've talked a little bit about how this impacts both oncologists and pathologists. So, Dr. Wolff, what does this guideline and commentary mean for both clinicians and patients with breast cancer? Dr. Antonio Wolff: So I think what I would try to reassure oncologists, pathologists, and also patients and their caregivers and loved ones, over the last 20 years, I think we have seen a meaningful improvement in the quality of HER2 testing. And I think pathologists and oncologists recognize that breast cancer biomarkers, in general, in the past, were used purely for prognostic reasons or to complement anatomic pathology from a diagnostic standpoint. But now, many of these assays, especially ER and HER2, are used as the sole determinant of therapy selection in a binary fashion. If you are positive for ER, you can be a candidate for ER-targeted therapy. If you're positive for HER2, you may be a candidate for HER2-targeted therapy. And I think even though the current generation of IHCs were not equipped to make a differentiation between very low levels of HER2 expression from potentially no levels of HER2 expression, with all the limitations we just said, I think pathologists are today doing a very good job. They understand the importance of the work they do in helping us clinicians take care of patients in the clinic. As I often joke, pathologists are wearing the stethoscope with us. So I think we need to be kind to pathologists and not put them under the microscope, if you will, pun intended, or putting a lot of pressure on them. And I think I tend to trust the quality of the work they do. I think there are two things that I would like to see happening. Number one, I would love to see the study sponsor allowing investigators to use a new generation of assays that are more quantitative to be able to back on DESTINY-Breast04 and test specimens of the patients that were triggered on the trial and see if there is a differential benefit in the observed outcomes of patients treated with trastuzumab deruxtecan according to levels of HER2, but that can be measured using a truly quantitative assay. And there are a lot of new assays out there. And I think the sponsors, they do have an obligation to all the patients who are participating in the trial to allow those things to happen. And the second piece is obviously to develop assays that are more quantitative than a traditional IHC. And Kim, along these lines, a question that often comes up is what to do with patients who may have had a previous test that was IHC 0. And what should we, I guess, recommend to clinicians that they do with this situation? Dr. Kim Allison: Yeah, I think this is a common question, and because of the unreliability of a 0 versus 1+ result, and we do see them change when you look at metastatic, or core versus primary surgical excision, 0 versus 1+ results shift around much more so than you'd expect if this was a true biologic difference. So I would look at a spectrum of samples across the metastatic progression. So if any of them are not 0, I think that's a result worth looking at. And considering that either there's heterogeneity there potentially or the 0s were false negatives and not consistent over time, so I would test the metastatic sample again. If you have a new sample, if that's 0, I would still consider treating based on a prior 1+ result or a different sample that's metastatic. Dr. Antonio Wolff: Yeah, the one thing that I haven't done yet is actually for patients who have had– Let's say, that I have a primary term that was IHC 0, and then, they had, unfortunately, metastatic disease, and the diagnostic tissue that confirmed that they had metastatic disease also tested IHC 0. And now they are– unfortunately, disease has progressed after first or second-line therapy, be it anti-estrogen if they had ER-positive disease or chemotherapy if they had ER-negative disease. What I have not done is to request a new biopsy exclusively for the purpose of doing another HER2 test because in case the tumor had changed expression from 0 to 1+. Because what we don't know because of the variability, etc., Dr. Allison was just describing whether that change is real or not. Again, it's really unfortunate that patients who were IHC 0 were not allowed for this study. There are other studies taking place right now looking at tumors that are more than IHC 0 and less than IHC 1+; that's DESTINY-Breast06. And those patients are being called by the study sponsor as “ultra-low”. Although I am not a pathologist, but I have no idea how a pathologist can truly try using immunohistochemistry today; really reliably differentiate between it's not 0, it's not 1+, it's in between. I am just concerned that I think we may be asking or putting pathologists in a hard spot, asking them to do something with an assay that was not designed to perform that way. Dr. Kim Allison: Even if we could get the interpretation perfect, to have digital tools to help us with interpretation, I think at that low level, IHC is just really sensitive to pre-analytics and analytic factors that are subtle. Even having a slide that's been sitting unstained for a week or so might change a 1+ to a 0 result. So it really is sensitive, maybe too sensitive, to those kinds of factors. Brittany Harvey: Absolutely. Well, thank you both for those insights on what's facing clinicians and patients and the commonly asked questions today. So then we've spent a lot of time talking about what's happened recently in this field. But, Dr. Allison, what are the ongoing developments and outstanding questions you're all facing regarding HER2 testing and breast cancer? Dr. Kim Allison: Yeah. I mean, I think we've covered some of those. Is IHC 0 truly 0? Would it be responsive to T-DXd or other antibody-drug conjugates targeting HER2? And so if that is relevant, then there's a lot of work looking at maybe more sensitive or quantitative assays that are really designed to detect those lower levels of expression, unlike the current assays. And then digital image analysis to standardize interpretation if they are leading to differences. And then new standards to help us calibrate. Brittany Harvey: Great. Well, I want to thank you both so much for all of your work to review and update this guideline on HER2 testing in breast cancer. And thank you for your time today, Dr. Wolff and Dr. Allison. Dr. Kim Allison: Thanks for having us. Dr. Antonio Wolff: Our pleasure. It's fun. Thank you. Brittany Harvey: And thank you to all of our listeners for tuning in to the ASCO Guidelines podcast. To read the full guideline update, go to www.asco.org/breast-cancer-guidelines. You can also find many of our guidelines and interactive resources in the free ASCO Guidelines app available in the Apple App Store or the Google Play Store. If you have enjoyed what you've heard today, please rate and review the podcast and be sure to subscribe, so you never miss an episode. The purpose of this podcast is to educate and to inform. This is not a substitute for professional medical care and is not intended for use in the diagnosis or treatment of individual conditions. Guests on this podcast express their own opinions, experience, and conclusions. Guest statements on the podcast do not express the opinions of ASCO. The mention of any product, service, organization, activity, or therapy should not be construed as an ASCO endorsement.

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Cobertura ScienceLink ASCO'23: Highlights día 4

ScienceLink

Play Episode Listen Later Jun 6, 2023 18:02

El Dr. Homero Fuentes de la Peña, oncólogo médico, presidente de ProOncavi A.C. en Baja California, México, nos habla sobre lo más destacado en el Congreso Anual ASCO 2023 del día 4, resaltando los siguientes estudios: Cáncer de próstata La priorización y secuenciación del tratamiento para el cáncer de próstata avanzado se ha convertido en un tema de gran importancia debido a la amplia gama de terapias y estrategias disponibles actualmente. En los siguientes temas se explora la forma de establecer prioridades y determinar el orden de administración de estas opciones terapéuticas, con un enfoque especial en las enfermedades hormonosensibles y la terapia basada en biomarcadores: Cuando más es más: Intensificación del tratamiento para el cáncer de próstata hormonosensible. Cuando menos es más: Reduciendo la exposición a la terapia sistémica para el cáncer de próstata hormonosensible. Momento de la inhibición de PARP para el cáncer de próstata con defectos en la reparación por recombinación homóloga. Cáncer de mama SONIA: Estudio fase III, aleatorizado, que evaluó a pacientes pre y posmenopáusicas con cáncer de mama avanzado RH+/HER2- que no habían recibido tratamiento previo, para recibir terapia con un inhibidor de aromatasa no esteroideo (IANE) + iCDK4/6 seguido de fulvestrant (F) al progresar o IANE seguido de F + iCDK4/6 al progresar. La elección entre los iCDK4/6 disponibles (abemaciclib, palbociclib, ribociclib) fueron un factor de estratificación y quedó a discreción del médico tratante. El objetivo primario fue el tiempo desde la aleatorización hasta la segunda progresión objetiva de la enfermedad o la muerte. Los objetivos secundarios incluyeron la supervivencia global (SG), la seguridad, la calidad de vida y la rentabilidad. TROPiCS-02: Estudio fase III, aleatorizado, que evaluó el uso de sacituzumab govitecán vs. el tratamiento a elección del médico (capecitabina, eribulina, vinorelbina o gemcitabina) en pacientes con cáncer de mama irresecable, localmente avanzado o metastásico, RH+/HER2-con un estado funcional ECOG de 0 o 1, que fracasaron al menos dos regímenes de quimioterapia anteriores. El objetivo primario fue la supervivencia libre de progresión de acuerdo con los criterios RECIST v1.1 mediante una revisión central independiente ciega y el objetivo secundario fue la SG. Eficacia de trastuzumab deruxtecán (T-DXd) en una paciente con cáncer de mama HER2+ con hipertensión intracraneal aguda por metástasis cerebrales: Efecto clínicamente significativo de T-DXd para tratar la invasión sintomática del sistema nervioso central en una mujer de 47 años diagnosticada con carcinoma ductal invasivo cT2 en junio de 2019. Fecha de grabación: 05 de junio de 2023. Todos los comentarios emitidos por los participantes son a título personal y no reflejan la opinión de ScienceLink u otros. Se deberá revisar las indicaciones aprobadas en el país para cada uno de los tratamientos y medicamentos comentados. Las opiniones vertidas en este programa son responsabilidad de los participantes o entrevistados, ScienceLink las ha incluido con fines educativos. Este material está dirigido a profesionales de la salud exclusivamente.

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HER2-Low Breast Cancer—Diagnostic Challenges and Opportunities for Insights from Ongoing Studies: A Podcast

Adis Journal Podcasts

Play Episode Listen Later May 3, 2023 28:16

In this podcast, Aditya Bardia from the Massachusetts General Hospital, Harvard Medical School in Boston, and Giuseppe Viale from the Department of Pathology and Laboratory Medicine at the European Institute of Oncology in Milan discuss HER2-low breast cancer, including the implications of the recent US FDA and EU approval of trastuzumab deruxtecan (T-DXd) for use in patients with HER2-low breast cancer, the new challenges that this development presents, and ongoing research that will help refine and define HER2-low patient identification. This podcast is published open access in Targeted Oncology and is fully citeable. You can access the original published podcast article through the Targeted Oncology website and by using this link: https://link.springer.com/article/10.1007/s11523-023-00964-8. All conflicts of interest can be found online. Open Access This podcast is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License, which permits any non-commercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The material in this podcast is included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by-nc/4.0/.

challenges opportunities european union studies ongoing breast cancer harvard medical school diagnostic oncology pathologies massachusetts general hospital international license her2 european institute us fda laboratory medicine aditya bardia t dxd

Meet The Professor: Optimizing the Management of ER-Positive and Triple-Negative Breast Cancer — Part 3

professor management positive md optimizing keynote breast cancer cns cme idc her2 triple negative breast cancer ihc t dxd

Play Episode Listen Later Apr 27, 2023 60:29

Featuring perspectives from Dr Sara A Hurvitz, including the following topics: Introduction: Antibody-Drug Conjugates in Breast Cancer (0:00) Case: A premenopausal woman in her late 40s with 0.8-cm ER/PR-positive, HER2-negative invasive ductal carcinoma (IDC) with 2 positive nodes and an Oncotype DX® Recurrence Score® (RS) of 9 — Ranju Gupta, MD (13:59) Case: A premenopausal woman in her early 40s with 5-cm ER/PR-positive, HER2-negative Grade I IDC — Nick Leasure, MD (17:43) Case: A woman in her early 70s with ER/PR-positive, HER2-low (IHC 1+) metastatic IDC receiving T-DXd with mixed response — Gigi Chen, MD (38:38) Case: A woman in her late 40s with multicentric triple-negative breast cancer with a gBRCA1 mutation who receives treatment per KEYNOTE-522 and achieves a complete remission with neoadjuvant treatment — Zanetta S Lamar, MD (44:27) Case: A premenopausal woman in her early 50s with bilateral ER/PR-positive, HER2-negative, IDC with PALB2 mutation and multiple, bilateral positive nodes — William R Mitchell, MD (46:44) Case: A woman in her mid 30s who is 18 weeks pregnant and is diagnosed with ER/PR-positive, HER2-negative IDC and an Oncotype DX RS of 17 — Alan B Astrow, MD (50:48) Case: A woman in her late 40s with ER/PR-positive, HER2-negative metastatic breast cancer with NTRK mutation and CNS involvement who receives entrectinib — Rahul Gosain, MD (52:55) Case: A woman in her early 60s with ER/PR-positive, HER2-negative metaplastic breast cancer with an Oncotype DX RS of 51 who has received an adjuvant aromatase inhibitor for 16 years — Rajalaxmi McKenna, MD (56:04) CME information and select publications

Breast Cancer | Oncology Today with Dr Neil Love: HER2-Positive Metastatic Breast Cancer

vision positive screenings optimal oncology akt cme mbc gastric her2 metastatic breast cancer neil love t dxd

Play Episode Listen Later Jan 26, 2023 46:50

Featuring an interview with Professor Giuseppe Curigliano, including the following topics: Vision for treating and curing HER2-positive metastatic breast cancer (mBC) in the future (0:00) Optimal treatment of HER2-positive mBC with brain metastases (7:42) Screening for and management of T-DXd-related interstitial lung disease (17:32) Gastric toxicities associated with the tucatinib/trastuzumab/capecitabine regimen and with T-DXd; differences in the toxicity profiles of these therapies between patients with HER2-positive and HER2-low breast cancer (23:50) Approach to endocrine therapy for triple-positive disease; emerging data with the AKT inhibitor capivasertib (28:43) Case: A woman in her mid 40s with a family history of breast cancer and upper limb soft tissue sarcoma who presents with a right breast lump and axillary adenopathy on self-examination (35:44) CME information and select publications

HER2-Positive Breast Cancer | What Clinicians Want to Know: Addressing Current Questions and Controversies in the Management of HER2-Positive Breast Cancer

YOU The Owners Manual Radio Show

Play Episode Listen Later Dec 22, 2022 130:31

Featuring perspectives from Drs Erika Hamilton, Sara Hurvitz, Ian Krop, Shanu Modi and Sara Tolaney, including the following topics: Optimizing the Management of Localized HER2-Positive Breast Cancer Introduction (0:00) Case: A woman in her mid 60s with pulmonary hypertension and triple-positive, node-positive infiltrating ductal carcinoma (IDC) after neoadjuvant TCHP and clinical complete remission — Susmitha Apuri, MD (4:31) Case: A woman in her early 60s with a 1.7-cm, triple-positive, clinically node-negative IDC — Ranju Gupta, MD (10:05) Dr Tolaney presentation (18:44) Current Considerations in the Treatment of HER2-Positive Metastatic Breast Cancer (mBC) Case: A woman in her early 60s with an 8-cm, ER-negative, PR-positive, HER2-positive IDC and positive nodes bilaterally after neoadjuvant TCHP and bilateral mastectomies with no residual disease — Henna Malik, MD (31:12) Case: A woman in her late 50s with Stage IIIA, ER/PR-negative, HER2-positive, node-positive IDC with residual disease after neoadjuvant TCHP and mastectomy — Laila Agrawal, MD ()35:29 Dr Krop presentation (42:56) Management of HER2-Positive Breast Cancer with CNS Metastases Case: A woman in her early 90s with “mild” dementia and ER/PR-negative, HER2 IHC 1+ IDC with symptomatic chest wall recurrence after neoadjuvant paclitaxel/trastuzumab and lumpectomy — Alan B Astrow, MD (54:54) Case: A woman in her late 40s with a triple-positive multifocal IDC with a gBRCA2 mutation and HER2-negative axillary nodes after neoadjuvant TCHP and bilateral mastectomies with significant response in the breast but 49 positive nodes — Zanetta S Lamar, MD (1:00:01) Dr Hamilton presentation (1:06:51) Recent Appreciation of HER2 Low as a Unique Disease Subset; Future Directions in the Management of HER2-Positive and HER2-Low Breast Cancer Cases: A premenopausal woman in her late 30s with a triple-positive IDC who develops brain metastases while receiving THP; A woman in her late 60s with an ER/PR-negative, HER2-positive IDC who develops brain metastases after first-line THP and second-line T-DM1 — Kelly Yap, MD & Rohit Gosain, MD (1:20:46) Case: A woman in her mid 60s with ER/PR-negative, HER2-positive mBC treated with paclitaxel/trastuzumab, then T-DXd on progression — Joanna Metzner-Sadurski, MD (1:29:40) Dr Modi presentation (1:40:51) Incidence and Management of Adverse Events Associated with HER2-Targeted Therapy Case: A woman in her early 60s with recurrent triple-positive mBC whose disease converts to HER2-negative, PIK3CA-positive at the time of progression — Dhatri Kodali, MD (2:01:10) Dr Hurvitz presentation (2:05:08) CME information and select publications

pr management er positive current md hamilton treatments addressing optimizing breast cancer controversies clinicians modi want to know cme idc incidence future directions mbc her2 krop thp pik3ca sara hurvitz t dxd tchp stage iiia

EP 1120B - Prompt Recognition & Treatment Found Effective for Lung Disease Patients Who Receive New Drug

Play Episode Listen Later Nov 1, 2022

A diagnosis of lung cancer used to be a diagnosis of death. Not anymore.Lung disease caused by a new drug for cancers—including metastatic or advanced breast cancer—can be effectively treated using approaches that focus on early detection and prompt management, according to a study published in ESMO Open in August 2022.Using data from nine clinical trials, this study provides one of the most comprehensive analyses of interstitial lung disease diagnosis and treatment in patients who received an antibody-drug conjugate known as T-DXd, from a class of drugs designed as a targeted therapy for treating cancers.The retrospective review examined 1,150 heavily pre-treated patients with breast, lung, gastric, colorectal, or other cancers across nine studies treated with T-DXd, also known as ENHERTU®.Senior author Charles Powell, MD, MBA, joins us today to discuss the findings. He is the Professor of Medicine and System Division Chief for Pulmonary, Critical Care, and Sleep Medicine at the Icahn School of Medicine at Mount Sinai in New York and the Medical Director of Respiratory Therapy at Mount Sinai Hospital. He also directs research programs focused on the early detection of lung interstitial disease and airway disease.

EP 1120B - Prompt Recognition & Treatment Found Effective for Lung Disease Patients Who ...

YOU The Owners Manual Radio Show

Play Episode Listen Later Nov 1, 2022

A diagnosis of lung cancer used to be a diagnosis of death. Not anymore.A diagnosis of lung cancer used to be a diagnosis of death. Not anymore.Lung disease caused by a new drug for cancers—including metastatic or advanced breast cancer—can be effectively treated using approaches that focus on early detection and prompt management, according to a study published in ESMO Open in August 2022.Using data from nine clinical trials, this study provides one of the most comprehensive analyses of interstitial lung disease diagnosis and treatment in patients who received an antibody-drug conjugate known as T-DXd, from a class of drugs designed as a targeted therapy for treating cancers.The retrospective review examined 1,150 heavily pre-treated patients with breast, lung, gastric, colorectal, or other cancers across nine studies treated with T-DXd, also known as ENHERTU®.Senior author Charles Powell, MD, MBA, joins us today to discuss the findings. He is the Professor of Medicine and System Division Chief for Pulmonary, Critical Care, and Sleep Medicine at the Icahn School of Medicine at Mount Sinai in New York and the Medical Director of Respiratory Therapy at Mount Sinai Hospital. He also directs research programs focused on the early detection of lung interstitial disease and airway disease.

EP 1120B - Prompt Recognition & Treatment Found Effective for Lung Disease Patients Who ...

RadioMD (All Shows)

Play Episode Listen Later Nov 1, 2022

#236_Vídeo-MOC_VOL 13 Nº25 | Trastuzumabe deruxtecana em Câncer de Mama - Estudo DESTINY-Breast03

MOC Brasil

Play Episode Listen Later Oct 10, 2022 9:07

A eficácia demonstrada pelo conjugado de anticorpo-medicamento trastuzumabe deruxtecana (T-DXd) no tratamento do câncer de mama avançado HER-2 positivo em diferentes estudos tem provocado mudanças profundas no manejo dos pacientes com essa doença no cenário da segunda linha de tratamento. Confira neste episódio uma discussão, com a Dra. Debora de Melo Gagliato e o Dr. Antonio C. Buzaid, sobre pontos importantes que merecem atenção na prática clínica quando no uso deste medicamento. Assista ao Vídeo-MOC, com a revisão completa. mocbrasil.com/blog/videos-moc/vol13num25/

mama dra confira estudo assista v deo moc t dxd

GI CONNECT Update from ESMO 2022 Ep 2: upper GI cancer highlights

COR2ED Medical Education

Play Episode Listen Later Sep 27, 2022 21:28

COR2ED Medical Education: This second GI CONNECT podcast episode, covers the highlights on gastroesophageal cancer from ESMO 2022. Dr Sam Klempner (Massachusetts General Hospital, Boston, USA) and Dr Yelena Janjigian (Memorial Sloan Kettering Cancer Center, New York, USA) discuss a number of key posters and oral presentations from the meeting and their implications for clinical practice. The experts start by covering a number of first line studies. First of all, they discuss a study from Dr. Janjigian’s research group which investigated regorafenib with nivolumab and FOLFOX in HER2 negative oesophagastric cancer. They then discuss LEAP-015 which investigated first-line lenvatinib plus pembrolizumab plus chemotherapy in advanced/metastatic gastroesophageal adenocarcinoma (GEA). Dr. Klempner then covers one of his posters from ESMO 2022 on the DisTinGuish trial which looked at DKN-01 and tislelizumab plus chemotherapy as first-line investigational therapy in GEA. Later they discuss MOONLIGHT which investigated FOLFOX plus nivolumab and ipilimumab versus FOLFOX induction followed by nivolumab and ipilimumab in patients with previously untreated advanced or metastatic gastric or gastroesophageal junction (GEJ) adenocarcinoma. Later in the podcast, they cover a number of second line studies, including the PRODIGE 59 - DURIGAST trial which evaluated FOLFIRI plus durvalumab and FOLFIRI plus durvalumab plus tremelimumab in second line treatment of patients with advanced gastric or GEJ adenocarcinoma. Finally they discuss DESTINY-Gastric02 which followed on from DESTINY-Gastric01 in Asian patients and was undertaken to evaluate T-DXd in Western patients with HER2+ unresectable/metastatic gastric/GEJ cancer who progressed on or after trastuzumab-containing regimen.

united states new york western cancer asian leap moonlight distinguish gea her2 prodige klempner esmo upper gi folfox janjigian t dxd folfiri dkn

A Game-Changing Cancer Drug Gives Stage 4 Breast Cancer Patients New Hope

Cancer Straight Talk From MSK

Play Episode Listen Later Aug 26, 2022 14:01

For nearly half of all breast cancer patients – those with low levels of the HER2 protein – targeted treatment options have always been limited. Palliative chemo has been the standard of care in stage 4 metastatic patients – until now. In this episode, Dr. Diane Reidy-Lagunes talks with Dr. Shanu Modi, the lead researcher of a groundbreaking MSK trial that proved a drug that combines an antibody with a chemotherapy – trastuzumab deruxtecan (T-DXd) – can control cancer cells and extend survival in stage 4 HER2-low breast cancer patients. With a fresh FDA approval, T-DXd is now being tested on other cancers and changing the way oncologists treat their patients.See omnystudio.com/listener for privacy information.

stage drug fda breast cancer new hope game changing cancer patients palliative msk her2 t dxd

Gynecologic Cancers | Oncology Today with Dr Neil Love: Advances in Gynecologic Cancers from the 2022 ASCO Annual Meeting

Play Episode Listen Later Aug 16, 2022 45:38

Featuring an interview with Dr Brian Slomovitz, including the following topics: Comparative efficacy and safety of commercially available PARP inhibitors for ovarian cancer (OC) (0:00) Patient- and disease-specific considerations in the selection and sequencing of treatment for OC with BRCA mutations (11:39) Mechanism of action of mirvetuximab soravtansine; recent efficacy and safety data with mirvetuximab for platinum-resistant OC from the SORAYA trial (15:13) Potential integration of mirvetuximab soravtansine into the treatment algorithm for platinum-resistant OC; emerging data with niraparib/dostarlimab and adavosertib for OC (20:23) Ongoing clinical trials evaluating tumor treating fields and upifitamab rilsodotin for OC (24:57) Recent follow-up data with pembrolizumab/bevacizumab/chemotherapy for metastatic cervical cancer (CC) from the KEYNOTE-826 trial (27:30) Efficacy and safety data with lenvatinib/pembrolizumab from the KEYNOTE-775 trial for endometrial cancer (EC); benefit of lenvatinib/pembrolizumab in subsequent lines of therapy (32:13) Updated data with dostarlimab for microsatellite instability (MSI)-high EC; ongoing clinical trials evaluating immunotherapy versus chemotherapy alone for MSI-high EC (35:47) HER2-low data with T-DXd for breast cancer and its potential role in therapy for EC; emerging role of mTOR inhibitors; ongoing investigations and unmet needs in OC, CC and EC (40:01) CME information and select publications

Trastuzumab - Deruxtecan (T-DXd) With Lyudmila Bazhenova And Julien Mazieres

Lung Cancer Considered

Play Episode Listen Later Aug 12, 2022 37:32

On the heels of accelerated approval by the US FDA, Dr. Stephen Liu discusses trastuzumab-deruxtecan (T-DXd) with medical oncologists and clinical investigators, Dr. Lyudmila Bazhenova, from the University of California, San Diego, and Dr. Julian Mazieres, from Toulouse University Hospital. T-DXd is an antibody-drug conjugate now approved for the treatment of HER2-mutant NSCLC, and in this episode, its design, efficacy, and safety are reviewed.

university california san diego her2 us fda nsclc trastuzumab lyudmila t dxd

Breast Cancer | Oncology Today with Dr Neil Love: Recent Updates in the Management of HER2-Low Breast Cancer

Play Episode Listen Later Aug 2, 2022 24:58

Efficacy data with T-DXd from the DESTINY-Breast04 trial for patients with HER2-low breast cancer; incidence and biologic relevance of HER2 mutations in breast cancer (0:00) Current and potential clinical roles for liquid biopsy in breast cancer; cardiac toxicity with T-DXd in the DESTINY-Breast04 trial (6:10) Safety profile of T-DXd from the DESTINY-Breast04 trial (11:09) Incidence and management of interstitial lung disease caused by T-DXd (14:54) Disease- and patient-specific factors and other considerations in the sequencing of chemotherapy, antibody-drug conjugates, tyrosine kinase inhibitors, SERDs (selective estrogen receptor degraders) and CDK4/6 inhibitors for breast cancer (21:45) Case: A woman in her early 60s with new lobular Stage II breast cancer 20 years after previous breast cancer on the same side (28:39) Case: A woman in her late 20s with a right breast lump and a strong family history of breast cancer (36:12) Case: A woman in her late 30s presenting with right axillary pain who experiences disease progression on T-DM1 and then receives T-DXd (46:09) Future of novel antibody-drug conjugates alone and in combination with immunotherapy for breast cancer (52:35) CME information and select publications

future management safety current disease breast cancer oncology efficacy cme incidence her2 stage ii cdk4 neil love t dxd t dm1 serds

Breast Cancer | Oncology Today with Dr Neil Love: Recent Updates in HER2-Low Breast Cancer

Play Episode Listen Later Jul 7, 2022 35:30

Featuring an interview with Dr Adam Brufsky, including the following topics: Trastuzumab deruxtecan (T-DXd) for HER2-low breast cancer; recently presented findings from the DESTINY-BREAST04 trial (0:00) Impact of heterogeneous disease on the detection of HER2-low expression in patients with breast cancer (7:48) Case: A woman with low-volume, asymptomatic and nonvisceral ER-positive, HER2-low breast cancer (13:16) Case: A woman with high-volume, symptomatic and visceral HER2-low breast cancer; treating ER-negative, HER2-low disease (18:44) Toxicities associated with T-DXd (25:25) Ongoing trials evaluating T-DXd in earlier lines of therapy (31:28) CME information and select publications

er impact ongoing breast cancer toxicity oncology cme her2 trastuzumab neil love t dxd

Breast Cancer | Oncology Today with Dr Neil Love: Recent Updates in HER2-Low Breast Cancer (Companion Faculty Lecture)

faculty lecture breast cancer companion targeted oncology cme rationale her2 neil love t dxd

Play Episode Listen Later Jul 7, 2022 22:12

Featuring a slide presentation and related discussion from Dr Adam Brufsky, including the following topics: Targeted therapies for HER2-expressing breast cancer (0:00) Rationale for targeting HER2-low breast cancer (6:51) Recent data with T-DXd in advanced HER2-low breast cancer (12:57) CME information and select publications

#108 - DESTINY-Breast04: Trastuzumab Deruxtecan em pacientes com câncer de mama avançado HER2 "Low"

Clinical Papers Podcast

Play Episode Listen Later Jun 28, 2022 32:00

O DESTINY-Breast04 é o primeiro RCT a benefícios clinicamente significativos para pacientes com câncer de mama metastático HER2 low.Como regra geral, pacientes com câncer de mama avançado e baixos níveis de expressão de HER2 (HER2 low) são considerados como HER2-negativos porque as terapias direcionadas a HER2 geralmente se mostram ineficazes nesse cenário. O DESTINY-Breast04 quebra esse paradigma, abrindo as portas para uma nova opção de tratamento para esses pacientes.Com um seguimento mediano de 18,4 meses, o braço T-DXd reduziu em 50% o PFS (9,9 vs 5,1 meses; HR 0,50, IC 95% [0,40, 0,63]; P

mama ic sejam avan sg pacientes anjos rct her2 pfs trastuzumab t dxd

Novel Therapies in GI Oncology at ASCO22

Play Episode Listen Later Jun 27, 2022 15:31

Dr. Rachna Shroff, of the University of Arizona Cancer Center, tells guest host, Dr. Shaalan Beg, of UT Southwestern's Harold C. Simmons Comprehensive Cancer Center and Science 37, about advances in precision medicine for pancreatic cancer featured at the 2022 ASCO Annual Meeting. She also highlights compelling new data from the FOLFOX, FOENIX-CCA2, and HERB trials in hepatocellular carcinoma, cholangiocarcinoma, and biliary tract cancer. TRANSCRIPT Dr. Shaalan Beg: Hello and welcome to the ASCO Daily News podcast. I'm Dr. Shaalan Beg, your guest host of the ASCO Daily News podcast today. I'm an adjunct associate professor at UT Southwestern Simmons Comprehensive Cancer Center and vice president of oncology at Science 37. I'm delighted to welcome Dr. Rachna Shroff, the associate dean for clinical and translational research and the chief of gastrointestinal (GI) medical oncology at the University of Arizona Cancer Center where she's also the interim chief of Hematology-Oncology. Dr. Shroff is also the chair-elect for the Gastrointestinal Cancer Symposium. Today we'll be discussing key abstracts in GI cancer that were featured at the 2022 ASCO Annual Meeting. Our full disclosures are available in the show notes and disclosures of all our guests on the podcast can be found on our transcripts at asco.org/podcasts. Dr. Shroff, thank you for being on the podcast today. Dr. Rachna Shroff: Thank you so much for having me. Dr. Shaalan Beg: Let's begin by reviewing what is new in the realm of precision medicine in GI cancers. One of the diseases where precision medicine has not made adequate inroads is pancreatic cancer. One of the most common mutations in pancreas cancer is KRAS, but there haven't been a lot of treatments that can target the most common forms of KRAS. What did we hear at ASCO22 regarding precision medicine and pancreatic cancer? Dr. Rachna Shroff: I agree, I think that the area of precision oncology is, unfortunately, lagging behind a little bit in pancreatic cancer. But I think as we have gotten better and better with our comprehensive genomic profiling, we are identifying subsets of patients within pancreas cancer who are potentially amenable to targeted therapies. You already mentioned KRAS mutations, and we obviously have a number of inhibitors in development in that space, though, we are still missing that key G12D mutation that we see in pancreas cancer. But what I think was really interesting that came out of ASCO22, was a lot of interest and emphasis on better understanding the KRAS wild-type patients in pancreatic cancer. Now, this is obviously a smaller subset of patients, given that the majority of patients have KRAS mutations. But there was a really interesting abstract, LBA4011, that looked at patients with locally advanced or metastatic pancreatic cancer, who were KRAS wild-type. They actually received gemcitabine in combination with a monoclonal antibody targeting EGFR and nimotuzumab. This was a study that was done entirely in Asia. It involved 92 Chinese patients that were randomly assigned to receive the combination of nimotuzumab with gemcitabine. What was interesting in this study is that the patients were found in the full analysis set to have a significantly longer median overall survival of 10.9 months versus 8.5 months with a hazard ratio of 0.5. So, that of course was intriguing and provocative for sure. Similarly, the other endpoints were also somewhat intriguing in terms of improvements in the median progression-free survival (PFS), etc. And specifically, patients without biliary obstruction had a longer PFS, which was an interesting finding as well. The nimotuzumab overall was pretty well tolerated and not any sort of surprising treatment-related adverse events (TRAEs) were noted. And so, this is definitely a drug that, I think, piques our interest in terms of being able to target patients with KRAS wild-type pancreatic cancer. I think that questions, however, that remain, and I think require further study is really understanding what this drug could do in combination with the chemotherapy combinations that we use more frequently in metastatic pancreatic cancers such as gemcitabine and paclitaxel or 5FU-based regimens like FOLFIRINOX. I think given that it is a relatively well-tolerated drug, it would be a very reasonable thing to investigate this drug further in the KRAS wild-type population with the kind of modern-day chemotherapy regimens that we use. And I think, of course, we all know that it is useful to be able to look at these types of drugs in a more global population. And so, a larger patient set I think would be very useful as well, but at least it tells us that there is a way to think about our KRAS wild-type patients with pancreas cancer and that perhaps we really need to understand and identify those patients' potential for precision oncology. Dr. Shaalan Beg: One of the GI cancers that has been a hotbed for precision medicine is cholangiocarcinoma, a disease that's very close to your heart. What updates did we hear at ASCO22 regarding cholangiocarcinoma and precision medicine? Dr. Rachna Shroff: This space of targeted therapy and cholangiocarcinoma has been incredibly exciting for the last few years and I think drug development has been rapid-fire in that space. The oldest, if you will, target that we've been thinking about for some time is the FGFR2 fusion patient population. And in Abstract 4009 by Dr. Goyal and colleagues, we saw the results of the FOENIX-CCA 2 trial which was looking at an oral FGFR inhibitor (futibatinib) in patients with intrahepatic cholangiocarcinoma, who harbor FGFR2 fusions and gene rearrangements. We had initially seen some of this data presented a few years back, but this was the updated data set. It was a single-arm phase 2 study that involved patients with advanced intrahepatic cholangiocarcinoma who had identified FGFR2 gene fusions, and they received futibatinib daily until progression. This was a traditional single-arm phase 2 study with a primary endpoint of overall response rate. At the final data cut, with a median follow-up of 25 months, there's actually a confirmed overall response rate of 41.7%. And I think that what was really exciting about this is this is a refractory patient population. So, in patients who have refractory cholangiocarcinoma, the other drugs, the non-targeted therapy drugs that we think through, really have response rates more in the single-digit to 10% range and so to have a confirmed overall response (OR) over 40% is truly exciting. The duration of the response was also exciting. This is not just a drug that works briefly, it has a duration of response of 9.5 months. And the mature median overall survival was 20 months. And in a disease which we talk about with the ABC-02 data of GemCis, a median OS in advanced disease of 11.7 months. This is really, really exciting for patients who harbor this fusion or gene rearrangement. We know that that's seen in about 10 to 15% of patients. So, again, we're dealing with a smaller subset, but it clearly demonstrates the need to identify FGFR2 gene fusions, so that we can offer these types of targeted therapies. This was not the first FGFR inhibitor that we have seen data on and in fact, we have 2 drugs already U.S. Food and Drug Administration (FDA) approved. And so, when we look at the common treatment-related adverse events that were identified with the futibatinib, there are really class effects related to FGFR inhibition like hyperphosphatemia, alopecia, dry mouth, nothing that really stood out or that was concerning. And so, I think this final analysis for the FOENIX study really just reaffirms the utility of futibatinib in patients with FGFR2 gene fusions, and the mature OS data, the duration of response, all of this really aligns with the need to identify patients with this alteration so that we can, post-gemcitabine based therapies, offer this targeted therapy or an FGFR inhibitor in general to these patients. I think the other really exciting abstract in the glandular carcinoma or biliary tract cancer space was Abstract 4006. This was the updated data from the HERB trial, which was an investigator-initiated multicenter phase 2 trial looking at trastuzumab deruxtecan (T-DXd) in patients who have HER2 expressing unresectable or recurrent biliary tract cancer. Trastuzumab deruxtecan, I'm sure everybody has been hearing about because it has been incredibly effective in HER2 alterations across a myriad of different disease sites. And so, not wanting to be left out, biliary tract cancers were investigated in this study with patients who had HER2 expression, so, that was HER2-positive IHC3+ or IHC2+/ISH+, and they also looked at HER2-low expressing patients, and [whose disease] were refractory or intolerant to gemcitabine-based therapy with the primary endpoint of overall response rate. So, in the HERB trial, a total of 32 patients were enrolled. 24 of them were HER2-positive and 8 were HER2-low and they all received trastuzumab deruxtecan. When you look at the efficacy data, the confirmed overall response rate in the patients with HER2-positive was 36.4%, which again, as I said, in a refractory patient population is certainly very exciting data. And the overall disease control median, PFS, and median OS were all pretty encouraging in terms of efficacy. What was also kind of intriguing was that there was some efficacy seen even in the patients who are HER2-low. Now, this is, in my opinion, a slightly less exciting amount of efficacy, but still important to note that the overall response rate in HER2-low was 12.5% with a median PFS that was also somewhat exciting at 4.2 months. And so, there is a potential clearly for targeting patients with HER2-high or HER2-positive with trastuzumab deruxtecan, and I think in the patients who are HER2-low, we need to better understand the potential utility. The common treatment-related adverse events that we see were the typical things that we've heard about with trastuzumab deruxtecan, but I think the one thing that was really worth noting was 8 patients or 25% of patients had interstitial lung disease (ILD), which we know is an important identified safety concern for patients who receive trastuzumab deruxtecan, and I think that's a pretty sizable number of 25%, so, I think that's going to really require a little bit more fleshing out for us to understand the safety for these patients. One question that a lot of us have had is whether these are patients who have received gemcitabine, which we know can also cause pneumonitis. And so, I don't know if we're seeing a higher percentage of ILD because of, 'priming' with prior gemcitabine. But regardless, I think this is just proof of principle that again, we need to identify patients with biliary tract cancers that have HER2-positivity because we now have a number of drugs including potentially trastuzamab deruxtecan to target [their disease] with after gemcitabine-based treatments Dr. Shaalan Beg: Absolutely. Any new biomarkers to keep on the radar for our listeners? Dr. Rachna Shroff: I think there are a lot of really exciting targets. One that was talked about and that we saw data on at ASCO [Annual Meeting] was from Abstract 4048, which looked at claudin [18]. Claudin is basically a transmembrane protein that kind of helps maintain the tight junctions between cells. In gastric cancer, in particular, we look at claudin 18 isoform 2, and there are 18.1 and 18.2 gene expressions that have been identified in gastric cancer. So, there was a very comprehensive abstract that was presented of over 1,900 samples that underwent comprehensive profiling by next-generation sequencing. And the patients were identified with claudin 18.1, and 18.2, high versus low. Claudin 18.2 expression was actually detected in 97% of the samples. It's slightly lower with claudin 18.1 at 63%. It's important to note that the primary tumors had higher expression levels than the metastatic tumors, so those were really the tumors in which they did a deeper dive. And in the process of doing this deeper dive, they did a really interesting kind of better understanding of the immune microenvironment and the immune profile in the samples that had claudin expression. And what was identified is that there was an inverse relationship basically between claudin 18.1 and 18.2 expression and correlation with PD-L1 positivity, tumor mutational burden (TMB)-high, M1 macrophages expression, NK cell presence, CD4 positive T-cells, myeloid dendritic cells. And so, there's clearly something between the presence of this claudin expression and the effect it has on the immune microenvironment. I think that's very relevant to keep in mind because as we all know, there's a whole space of drug development focused right now on anti-claudin 18.2 monoclonal antibodies, as well as a target for antibody-drug conjugates (ADC) and cellular therapies with CAR T-cell therapies being developed specifically against claudin 18. And so, understanding the immune microenvironment and the interaction between the claudin expression will be really important as we continue to charge forward in that space. Dr. Shaalan Beg: Absolutely. Very, very exciting. Sticking with the liver pancreas theme, what other studies piqued your interest with regards to hepatocellular carcinoma (HCC)? Dr. Rachna Shroff: It's a really exciting time in HCC. I mean, we actually have drugs that are working in the advanced space. And so, now there's a lot of interest in shifting to looking at preoperative neoadjuvant, and adjuvant approaches and what we can do to improve disease-free survival and overall survival in patients who are able to undergo prior resection. So, Abstract 4013 looked specifically at the efficacy and safety of adjuvant hepatic arterial infusion chemotherapy with FOLFOX. And this was a randomized open-label phase 3 trial. It actually included a total of 315 patients between 5 different centers and patients were randomly assigned to receive either 1 to 2 cycles of adjuvant HAIC FOLFOX (Hepatic Arterial Infusion Chemotherapy FOLFOX) versus just follow up, the control group had no adjuvant treatment, and the primary endpoint was disease-free survival here and in the intention to treat population, there was a significantly improved median disease-free survival at 27 months versus 11 months in the patients who were on the control arm. And there was a protocol analysis, there were a number of other efficacy endpoints including disease-free survival rates at 1, 2, and 3 years. And everything kind of leaned towards and or suggested an improvement with the utility of HAI FOLFOX in patients who undergo complete resection. It should be noted that this included patients specifically who had microvascular invasion on their resection. And so, these are patients who are at higher risk for recurrence as we know. This to me suggests that there could be a role for adjuvant treatment in patients who undergo complete resection with microvascular invasion (MVI). HAI is a very specific technique and it requires a highly skilled center in the placement of HAI pumps. And we're seeing more and more trials across the U.S. as well investigating the role of HAI in advanced disease and in perioperative approaches. And so, I think this is an area of much-needed continued research. There are, of course, a number of ongoing adjuvant studies looking at immunotherapy in the adjuvant setting. And so, it'll be really important to see how those read out and then to try to put all of these in context so that we can better understand local therapy like HAI FOLFOX versus more systemic adjuvant approaches like immunotherapy. Dr. Shaalan Beg: Thank you very much, Dr. Shroff for sharing your valuable insights with us. I really appreciate you taking the time to spend with us and our listeners. Dr. Rachna Shroff: Thanks so much. I enjoyed it. Dr. Shaalan Beg: And thank you to our listeners for your time today. You will find links to the abstracts discussed today in the transcript of this episode. Finally, we'd really like to hear your feedback. If you could please take a moment to rate, review, and subscribe wherever you get your podcasts. Thank you very much! Disclosures: Dr. Shaalan Beg: Employment: Science 37 Consulting or Advisory Role: Ipsen, Array BioPharma, AstraZeneca/MedImmune, Cancer Commons, Legend Biotech, Foundation Medicine Research Funding (Inst.): Bristol-Myers Squibb, AstraZeneca/MedImmune, Merck Serono, Five Prime Therapeutics, MedImmune, Genentech, Immunesensor, Tolero Pharmaceuticals Dr. Rachna Shroff: Consulting or Advisory Role: Exelixis, Merck, QED Therapeutics, Incyte, Astra Zeneca, Taiho Pharmaceutical, Boehringer Ingelheim, SERVIER, Genentech, Basilea Research Funding: Pieris Pharmaceuticals, Taiho Pharmaceutical, Merck, Exelixis, QED Therapeutics, Rafael Pharmaceuticals, Bristol-Myers Squibb, Bayer, Immunovaccine, Seagen, Novocure, Nucana, Loxo/Lilly, Faeth Therapeutics Disclaimer: The purpose of this podcast is to educate and inform. This is not a substitute for professional medical care and is not intended for use in the diagnosis or treatment of individual conditions. Guests on this podcast express their own opinions, experience, and conclusions. Guest statements on the podcast do not express the opinions of ASCO. The mention of any product, service, organization, activity or therapy should not be construed as an ASCO endorsement.

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#108 - DESTINY-Breast04: Trastuzumab Deruxtecan em pacientes com câncer de mama avançado HER2 "Low"

Clinical Papers Podcast

Play Episode Listen Later Jun 24, 2022 32:00

mama ic sejam avan sg pacientes anjos rct her2 pfs trastuzumab t dxd

DESTINY-Breast04 and Other Key Breast Cancer Studies at ASCO22

Physician's Weekly Podcast

Play Episode Listen Later Jun 21, 2022 31:01

Dr. Allison Zibelli, of the Sidney Kimmel Cancer Center – Jefferson Health, and Dr. Hope Rugo, of the Helen Diller Family Comprehensive Cancer Center at the University of California, San Francisco, discuss the practice-changing DESTINY-Breast04 trial as well as novel therapies in metastatic HR+/HER2- breast cancer from the TROPiCS-02 and MAINTAIN studies, all of which were featured at the 2022 ASCO Annual Meeting. TRANSCRIPT Dr. Allison Zibelli: Hello. I'm Dr. Allison Zibelli, your host for the ASCO Daily News Podcast today. I'm a vice-chair and breast medical oncologist at the Sidney Kimmel Cancer Center, Jefferson Health in Philadelphia. My guest today is Dr. Hope Rugo, a professor of medicine and the director of Breast Oncology and Clinical Trials Education at the Helen Diller Family Comprehensive Cancer Center at the University of California, San Francisco. We'll be discussing key advances in breast cancer that were featured at the 2022 ASCO Annual Meeting. Our full disclosures are available in the show notes, and disclosures of all guests on the podcasts can be found on our transcripts at asco.org/podcasts. Hope, it's great to talk to you today. Dr. Hope Rugo: Nice to talk to you, too. Dr. Allison Zibelli: Let's begin with perhaps the most exciting abstract at ASCO this year, which was the DESTINY-Breast04 study, that's LBA3, a randomized phase 3 study of trastuzumab deruxtecan versus treatment of physician's choice in patients with HER2-low, unresectable and/or metastatic breast cancer. What are your thoughts about this study? Dr. Hope Rugo: Well, of course, this is a hugely practice-changing study as was noted in the second-to-last slide by the discussant [Dr.] Pat LoRusso. So, antibody-drug conjugates are really the next step in delivering chemotherapy to cancer cells. The antibody-drug conjugates allow targeted delivery of a toxin to the cancer cell. I think we didn't understand how important this was going to be. These second, sort of, verging on third-generation antibody-drug conjugates use an antibody approach and to then have a new generation of linkers, which allow the drug to be released locally, but to then have drugs which pack a big bang for the buck. So, the way antibody-drug conjugates are constructed, you need to have a drug that actually can't be given as a naked drug because it's too toxic because you're giving just very small amounts of this drug that are delivered directly to the cancer cell. And the other really critical part of this is that the drug-to-antibody ratio of at least the successful and new antibody-drug conjugates (ADC) is quite high in the 7.5 to 8 toxins per antibody. Now, what that's resulted in is really interesting, is that there's a bystander effect. So, the toxin itself can leak out of the cancer cell that it's targeted and kill neighboring cells, but also because of the construct of these antibody-drug conjugates, what's likely happening is even if the cancer cell's a very low expression of the target, really low, you're able to actually get that ADC into the cancer cell to kill the cancer cell. So that may be a big part of the so-called bystander effect. So trastuzumab deruxtecan is biosimilar trastuzumab linked to a topoisomerase inhibitor deruxtecan, and what happened here was that of course, we saw remarkable data in HER2+ disease, unbelievable p-values in DESTINY-Breast03 compared to T-DM1, a first-generation ADC. But in DESTINY-Breast04, we targeted a population of patients largely with hormone receptor-positive disease who had a little expression of HER2, 1 plus or 2 plus by immunohistochemistry and no gene amplification. And this trial, which randomly assigned patients 2:1 and included just 58 patients with triple-negative disease. So in this trial, 480 had hormone receptor-positive breast cancer, a median of 1 line of prior chemotherapy. They were only allowed up to 2. They were refractory to endocrine therapy, a median of 3 lines of endocrine therapy. In the overall patients and in the hormone receptor-positive patients, there was actually a doubling in progression-free survival (PFS). It started very early, and it continued throughout, and at every landmark analysis, T-DXd was better than the treatment of physician choice that patients were randomly assigned to. It's also important when you're thinking about trials like this to think about what the treatment of physician choice was, and it was all chemotherapy regimens we would use. Paclitaxel, nab-paclitaxel, capecitabine, eribulin, or gemcitabine. And, so, I think that that doesn't bring up any questions. When they looked at the hormone receptor-positive group, they saw, if anything, even a bigger benefit overall. Now, the other endpoint of this trial was overall survival, and at this first analysis, they saw an improvement in overall survival that was quite dramatic. The absolute difference was 6.4 months, which is pretty amazing for an overall survival difference. And then they looked at this exploratory endpoint at the 58 patients who were valuable at triple-negative breast cancer, and then that group of patients, also saw an improvement in PFS of 5.6 months, an improvement in overall survival of 9.9 months, very small group, but amazing data. The forest plots are exactly what you want to see, all the dots line up to the left of 1, and overall responses improved. One of the concerns with this drug has been toxicity. The toxicity showed no new toxicity signals, which is really important. Nausea is the biggest issue that we deal with. It's mostly grade 1 and 2, but still something that's important to manage. A little bit of hair loss, not much in the way of bone marrow suppression, which is interesting. Interstitial lung disease (ILD) or pneumonitis continues to be an important issue to follow. 12% of patients had ILD of any grade. Most of it was grade 1 and 2, but 3 patients died, representing 0.8%. So, this really highlights the importance of monitoring and managing pneumonitis. Regardless of that, few patients had a reduced ejection fraction, but again, very, in general, low grade. This is really a new standard of care, and the standing ovation was really due to the fact that all we do is dedicate ourselves to trying to help patients live longer and better with their cancers, and in this trial, we have a huge win that has no qualifications. We can help patients not only control their disease longer but live longer with T-Dxd compared to standard chemotherapy. Dr. Allison Zibelli: So, Hope, I know as a practicing medical oncologist, I find that our metastatic triple-negative patients are often the biggest therapeutic challenges for us. Will they be doing larger studies with these patients that are HER2-low? Dr. Hope Rugo: It's a really good point. About 65% of patients with hormone receptor-positive disease or so-called HER2-low, centrally confirmed in the study. So, a fair number of people, about a quarter, did not have HER2-low disease when they were tested centrally. In the triple-negative population, who really are ER, PR, HER2- by standard definitions, about a third of the patients might have HER2-low disease. So, there's a lot of interest in further exploring that and looking at the patients who have ultra-HER2-low disease, so between and 1 plus a little bit of expression. That's been studied in the hormone receptor-positive population in DESTINY-Breast06. But there's a lot of interesting further defining that triple-negative population, so to speak, they're going to be triple-negative plus now and understanding what the benefit is in that population. So definitely will be looked at more now moving forward. Dr. Allison Zibelli: Thank you. So, let's move on to Abstract 1002. And the results from the phase 1, 2 study of patritumab deruxtecan, a HER3-directed antibody-drug conjugate, and patients with HER3 expressing metastatic breast cancer. What are your thoughts about this study? Dr. Hope Rugo: That's a really interesting, another one of these second- to third-generation antibody-drug conjugates. It's just the antibody, instead of being the usual, sort of, HER2 or TROP2 that we're used to thinking about is directed to HER3, 1 of the HER family of proteins. This is interesting. There's actually been a lot of work trying to target HER3 with naked antibodies with disappointing results, although I have to say most of the studies really didn't push it too far. So, with this antibody drug construct, deruxtecan, which is the same as in T-DXd and another TROP2 ADC Dato-DXd is used. So, I will say they do need to change the toxin in the next generation of ADCs. But they looked at, at first did a dose-finding study which has previously been presented, and then a dose expansion in both hormone receptor-positive HER2-negative disease and triple-negative disease. All the triple-negative patients had HER3 high disease by immunohistochemistry, and the hormone-receptor-positive patients were enrolled in 2 cohorts, HER3 high and HER3 low. And the median number of prior treatment regimens that patients had received in the hormone-receptor-positive group was 6 and 2 for the triple-negative group, but there was a huge range, up to 13 lines of treatment. They only had 14 patients with HER2+ disease. So, it's a little bit hard to know what to do with that patient group, but they were heavily pretreated 5.5 prior lines of therapy. The confirmed overall response rate in the 113 patients with combined HER3 high and low was 30%, very impressive, heavily pretreated patients. For triple-negative disease all HER3 high, it was 23%. Again, very nice. And there were 14 patients with HER2+ disease that also were HER3 high. It was about 43%. So those are nice responses, but we always want to know how durable is that. The duration of response ranged from 6 to over 8 months in those 3 different groups. So, these were quite durable. It wasn't any 2- to 3-month duration of response. So very impressive. And then when they looked to see, did it matter whether you had HER3 expression that was high or low in the hormone-receptor positive group, they actually did see responses in the HER3-low group, some very good responses. Overall, there were less patients in that group, but it does suggest that maybe you would still see responses in the HER3-low group, very impressive. And then 1 really interesting correlative study they did was they looked to see what happened to the HER3 expression on the tumor cell over time, and it went down. So, you treated the HER3 expression in most of the patients just dropped off completely, which is really interesting. It didn't have any association with clinical activity, but it's sort of an interesting correlative endpoint. This is a drug that overall was pretty well tolerated. They saw a similar toxicity to T-DXd with a lot of nauseous, a little bit of alopecia, a little bit more bone marrow suppression than we're used to seeing with T-DXd. So, neutropenia was seen in about 10% of patients at the lower dose and about a quarter of the patients at the higher dose. Overall, pretty well tolerated. Now, interstitial lung disease is a toxicity with this construct, and they saw ILD of 7% but most cases were grade 1 and 2. The other interesting toxicity that's unique to this agent is thrombocytopenia. So, they saw a grade 3 or greater rate of thrombocytopenia of 27% in the lower dose group, and in the larger group that received the higher dose, 39% of grade 3 or greater thrombocytopenia, so platelets less than 100,000. Turns out that when you stop the drug, the platelets do come back, so that's a good thing. Sometimes we saw long-term thrombocytopenia with T-DM1. They didn't see bad toxicity like bleeding, but it is something that needs to be managed with this drug because we're not great at managing thrombocytopenia. In any case, it has fast-track designation for another solid tumor, not breast cancer, and we'll have to see where this fits into our dizzying array of very effective ADCs now. Dr. Allison Zibelli: The practicing medical oncologist is not used to testing for HER3 in our patients with breast cancer. How common is it? Dr. Hope Rugo: HER3 expression is quite common in hormone receptor-positive disease, a little less common in triple-negative breast cancer. So, I think that we would see expression if we were going to be treating patients with this particular approach. Dr. Allison Zibelli: All right. Let's move on to Abstract 507, which reported long-term outcomes of adjuvant denosumab in breast cancer, specifically fracture reduction and survival results from 3,425 patients in a randomized double-blind, placebo-controlled ABCSG-18 trial. What are your thoughts about this study? Dr. Hope Rugo: Well, this trial, this is an update of a study that previously has been presented and published, most recent publication was in Lancet Oncology in 2019, and these patients were randomly assigned to receive denosumab at 60 milligrams, important to note the dose, subcutaneously every 6 months versus placebo every 6 months, and they did get placebo subcutaneous injections. And this treatment continued through their endocrine therapy. They showed a dramatic reduction in fracture rate, and that has been maintained over time. We were really surprised enough to suggest that maybe Austrian people didn't go into the sun, so they got more Vitamin D deficiency, hard to know, but the hazard ratio is 0.5. It's unbelievable the number of fractures, 92 for denosumab but 176 for placebo, a P value of less than .0001. So, this is a real endpoint, treating patients who are receiving endocrine therapy that, in this case, non-steroidal aromatase inhibitor therapy that can increase bone loss, have a reduced fracture rate when they received denosumab. So that is the big take-home message, and a medium follow-up of 8 years. But the secondary endpoints included disease-free survival. They had about 20% disease-free survival events and 8% deaths, and what they saw was really interesting. So, the caveat is that 16% of patients were unblinded at the first analysis and half of them got denosumab, so it messed up their results a little bit, but the disease-free survival was significantly better in patients who received denosumab, and the hazard ratio of 0.83 and the hazard ratio does not cross 1. So that's very interesting, and even overall survival, they looked at 2 other endpoints, bone metastasis-free survival, and overall survival. They also trend towards an improvement with a hazard ratio of 0.8 for both of them. And they didn't actually see toxicity. So, patients' brittle bone fractures and osteonecrosis of the jaw (ONJ) are all concerning, but they really just did not see any risks in this patient population. I think there was 1 patient that had what they thought was a brittle bone fracture. Obviously, they watched the mouth very carefully as well. Really dramatic, and I think it's kind of disappointing that we never had any registration approach in this, and also not well-understood why the D-CARE study did not show a benefit, but I think D-CARE was designed differently. This is a better design to focus on our patients and the specific issues, and I think it's intriguing and should be considered as part of our treatment regimen for patients who are at risk for bone loss and have early-stage breast cancer on an aromatase inhibitor. Dr. Allison Zibelli: I've been using DEXA scans and offering denosumab to my patients on AIs that have osteopenia or osteoporosis. Should we be considering it in women with normal bone mass? Dr. Hope Rugo: I think not yet. Unfortunately, this trial was not immediately powered for cancer outcome, although the data are very encouraging. We don't know what the relationship is to bone loss, and providing an environment that's friendlier for cancer cells. So, do you have to have bone loss in order to have the risk that you're reducing with these agents? Certainly, that's what we've seen with zoledronate. So, I think that we don't have sufficient data to use this simply to treat cancer, but I do think that we should be considering this as an agent to give patients who have bone loss, either when you're starting an aromatase inhibitor or during the course of therapy. I think it's well tolerated, and a subcutaneous injection is not difficult. One of the questions that's come up for people is do you get bone loss that increases your risk of fracture after you stop therapy. But clearly from these updated data, these patients were off therapy. They did not have an increase of fractures and the patients treated with denosumab fared much better, I mean the hazard ratio of 0.5. Dr. Allison Zibelli: Let's move on to TROPiCS-02. That's LBA1001. This is a randomized phase 3 study of sacituzumab govitecan versus treatment of physician's choice in patients with hormone receptor-positive, HER2-negative advanced breast cancer. How do you think this study will impact practice? Dr. Hope Rugo: That's a great question. I presented this data, and I think I presented it on a Saturday, and on Sunday we saw the plenary talk of DESTINY-Breast04. These patients enrolled in TROPiCs-02 had a median number of lines of prior chemo 3 with a range of up to 8 actually, compared to a median number of lines as 1 in the DESTINY-Breast04 population. We included all hormone receptor-positive HER2 negative-advanced breast cancer, not centrally confirmed. They included just the HER2 low subset that was centrally confirmed. Everybody in our study had received prior CDK4/6 inhibitors compared to about 70% in DB04. And then 95% of patients in this trial had visceral mets. So, we did really treat a patient population who had very advanced high risk hormone receptor-positive breast cancer. As you know, we saw an improvement and progression-free survival with a hazard ratio of 0.66 meeting the endpoint. We needed a hazard ratio of 0.7, highly statistically significant P value .0003, but the median difference in PFS was only 1.5 months, and overall survival data is not yet mature. So that's brought up the question about how this drug should be used because there was a big fall off in the first 2 months where patients had rapid disease progression with heavily pretreated chemotherapy-resistant disease. We did landmark analyses and there were big separations in PFS at 6, 9, and 12 months, and 12 months, it was 21% patients free of progression and death at 1 year versus 7% for the TPC arm. So, it was a tripling of patients who were free of progression at one year. I think that's clinically relevant. This drug is associated with more neutropenia. That's the primary issue to manage, and probably half of the patients need growth factors at some point. When we looked at other endpoints response to ratio response, etc., we're better with Sacituzumab. So where does this all fit into our treatment paradigm. I think there's the HER2-low patients who will now receive T-DXd up in the, I hope, second line and not in lieu of endocrine therapy, when they're ready for chemo. But there are patients who don't have HER2-low disease and then there are patients who are going to be in the later line setting. So, I do think it still has a place in the treatment department, receptor-positive metastatic breast cancer. The results show that it was better than chemotherapy, physician choice based on our national and international guidelines, and that's better for our patients to have that option. Overall survival data obviously is looked for with great interest and that will help us put this into the right paradigm. And then I also hope that real world data will help us understand how sequential treatment with these different ADCs will benefit our patients. Dr. Allison Zibelli: This is really exciting. Do you think that we're maybe coming toward the end of conventional chemotherapy, especially for women with HER2-positive disease? Dr. Hope Rugo: I wonder if we are. I think we were interested in T-DM1 for HER2-positive disease early on. We've seen some really nice pathologic complete response data as well as adjuvant data in the attempt trial in patients who had stage I disease. Now that we have these second-, third-generation ADCs, T-DXd, I think this could potentially completely replace our chemotherapy. We still have to deal with alopecia. And I will point out ADCs are still chemotherapy. They're just a much more efficient and effective way of delivering treatment, and we need to be very careful to manage the toxicity. Dr. Allison Zibelli: Next, we're going to talk about the main pain trial that's LBA1004, which is a randomized phase 2 trial of fulvestrant or exemestane with or without ribociclib after progression on anti-estrogen therapy plus cyclin-dependent kinase 4/6 inhibition in patients with unresectable or hormone receptor-positive HER2-negative metastatic breast cancer, in other words CDK4/6 after CDK4/6. What are your takeaways here? Dr. Hope Rugo: First, just amazing that an investigator-initiated trial could do this well and be placebo-controlled. So, kudos to the principal investigator (PI) [Dr.] Kevin Kalinsky. This trial is a small phase 2 trial. A reasonable number, 119 patients were randomly assigned and evaluable patients could have received up to 1 line of prior chemotherapy for metastatic disease. If you had received prior exemestane, you received fulvestrant, if you received prior fulvestrant, you received exemestane, and actually if you looked at the number of patients who had received fulvestrant, it was 99 versus only 20 with exemestane. So important to keep in mind. If you looked at the overall population where the primary endpoint was progression-free survival, the hazard ratio is 0.57, just median PFS of 2.8 months in patients receiving endocrine therapy and placebo and 5.3 months for patients receiving endocrine therapy and ribociclib. So was this ribociclib after ribociclib or ribociclib after something else. 86% of patients had received palbociclib as their prior CDK4/6 inhibitor, and only about 10% to 14% had received prior ribociclib. So, there's a predominance of palbociclib followed by ribociclib. The other thing that's important to keep in mind is how sick this patient population was. Very few had received prior chemotherapy in the less than 10% range, visceral metastases in about 60%. So that's helpful. Only 19% or so had received 2 or more endocrine therapies from metastases. So, most people did this as their second line treatment. The PFS, when you looked at fulvestrant or exemestane, looked like the benefit was relatively similar, but you know you got 20 patients in the exemestane arm. The hazard ratios, looking at the subgroup analyses, all looked pretty similar, and the overall response and clinical benefit rate were better with continuing the cyclin dependent kinases (CDK) inhibitor. There was interesting sub-analysis looking at mutations and how that affected things. And they looked at patients who had ESR1 mutations or had wild-type ESR1. 42% had ESR1 mutations at study entry, very similar to what we've seen. In that group of patients, remember it's only 33 where they had this analysis, they saw a lot of other mutations. So p53, PIK3CA, FGFR, CCND1—those patients did not benefit. Only 33 patients. No benefit at all, very short PFS, about 3 months. The patients who had ESR1 wild type seemed to benefit a lot, 45 patients going from about 3 months to a little over 8 months. So, this is all hypothesis-generating data. I wouldn't run out and use this as your standard of care now because it is small data. But when the patient doesn't have other good options, I certainly would consider switching the CDK and going on, add that to the next line endocrine therapy. It's important to switch the endocrine therapy. I think we really need to look at the ongoing phase 3 trials to give us better evidence basis and understand the impact of mutations and prior therapy on who might benefit from continued CDK inhibitors after progression on a CDK inhibitor. Dr. Allison Zibelli: I think this is a really exciting trial. We all have a lot of patients on palbociclib and letrozole who've been on for 4, 5 years, and would like to continue with this kind of treatment because the side effects are really manageable. So, I look forward to seeing what's coming in the future with the phase 3 trials. So, let's talk about Abstract 1015, which I thought is a great idea. It looks at the quality of life with ribociclib plus aromatase inhibitor versus abemaciclib plus AI as first-line treatment of hormone receptor-positive, HER2-negative advanced breast cancer, assessed via matching adjusted indirect comparison. Could you tell us what matching adjusted indirect comparison is and why you chose this for the study? Dr. Hope Rugo: It's an interesting question. How do you compare across trials? So, matching this kind of make analysis, we'll call it a make analysis for the purposes of this discussion, allows you to match patients and weight based on their characteristics that might affect patient reported outcomes. And that actually is a way of trying to do a fair cross-trial comparison. So basically, take the study population, you match the inclusion and exclusion criteria, and then you weigh the different criteria so that you can try and make a better association. It's the best way we know of comparing across trials. You know, a lot of people ask why we didn't have PALOMA-2 in here, and that's because they used a different patient reported outcome tool. So, you have to use the same patient reported outcome tool in order to compare. So that's why we did this analysis, and it sort of came on the heels of a survey that Fatima Cardoso presented at San Antonio in 2021, where patients identified diarrhea as a symptom they really didn't like more than everything else. And you can imagine, I think we all have that experience in practice, the unexpected nature of diarrhea and the fact that it does limit your activities and, therefore, quality of life are important. In this analysis, interestingly but not surprisingly, ribociclib favored abemaciclib in diarrhea, and there can be associated appetite loss, so ribociclib also favored abemaciclib for appetite loss. And I thought the last one was interesting—fatigue—because I wouldn't have assumed that fatigue would be different. And maybe it's associated with diarrhea. They have these funny arm symptoms that were better. We don't really know why that was, and it's hard to assess again. We're really not clear based on the differences between the drugs. So, there are limitations to the analysis, but I think that it helps us really in individual patients try and match patients' underlying symptoms with the best treatment to offer them the best quality of life as they're being treated in the metastatic setting. Dr. Allison Zibelli: I thought this study was great because it really centered the experience of the patient and the wishes of the patient. You don't see that designed into many clinical trials, the way this was. So, I thought that was a great feature of this study. Dr. Hope Rugo: I will say that all of the 3 studies that looked at CDK inhibitors, all those 3 studies included patient-reported outcomes. That's an important new approach that is really being focused on. Dr. Allison Zibelli: Do you consider the CDK4/6 inhibitors equivalent in efficacy, and could you substitute them to try to get the side effect profile that you want? Dr. Hope Rugo: Well, I think that we saw in the early stage setting that there are differences. Now, across the different trials, there are big differences in patient populations and inclusions as we saw in the PALOMA-2 results that were presented at ASCO [Annual Meeting], whether the patients had prior chemotherapy like in PALOMA-3, whether they had a short disease-free interval, the higher risk patients in PALOMA-2. The PALOMA trials were more broadly inclusive than the other 2 studies, the MONALEESA and MONARCH series of trials. So, we do have to be a little bit careful about comparing apples to oranges, but we have the early-stage results of MONARCH E showing a clinically important difference in outcome whereas the PALLAS and Penelope-B trials didn't. So that sort of puts us into a little bit of a question period. Are these all patient populations or are there differences between the agents? The PFS and the metastatic setting, all the hazard ratios line up. So, in truth, although I know the activity against cyclin-independent kinases are different between agents, we don't still really understand the clinical differences in efficacy, but I think we all are practicing using evidence-based medicine. I wouldn't, for example, substitute a different CDK4/6 inhibitor for abemaciclib in the treatment of early-stage breast cancer. We have to just learn how to manage the diarrhea and use prophylaxis and dose reduce early to manage this and make it tolerable for our patients. And in the metastatic setting, I think we need to follow evidence-based guidelines and use the best data available to decide on the right treatment approach and sequencing for our patients. Dr. Allison Zibelli: Thank you, Hope, for coming on the podcast today. This was a really interesting review of one of the most exciting ASCO [Annual Meetings] I've been to. And thanks for sharing your valuable insights with us and helping us make sense of all this really new exciting data. We really appreciate it. Dr. Hope Rugo: Thank you. And thank you so much for inviting me. Dr. Allison Zibelli: And thank you to our listeners for joining us today. You will find the links to all the abstracts discussed today in the transcript of this episode. Finally, if you value the insights that you hear on the ASCO Daily News Podcast, please take a moment to rate, review, and subscribe wherever you get your podcasts. That really helps other listeners find us. Thank you. Disclosures: Dr. Allison Zibelli: None disclosed. Dr. Hope Rugo: Honoraria: Puma Biotechnology, Mylan, Samsung Bioepis, Chugai Pharma, Blueprint Medicines Consulting or Advisory Role: Napo Pharmaceuticals Research Funding (Inst.): OBI Pharma, Pfizer, Novartis, Lilly, Genentech, Merck, Odonate Therapeutics, Daiichi Sankyo, Sermonix Pharmaceuticals, AstraZeneca, Gilead Sciences, Ayala Pharmaceuticals, Astellas Pharma, Seattle Genetics, Macrogenics, Boehringer Ingelheim, Polyphor Disclaimer: The purpose of this podcast is to educate and to inform. This is not a substitute for professional medical care and is not intended for use in the diagnosis or treatment of individual conditions. Guests on this podcast express their own opinions, experience, and conclusions. Guest statements on the podcast do not express the opinions of ASCO. The mention of any product, service, organization, activity, or therapy should not be construed as an ASCO endorsement.

university california ai pr san francisco philadelphia er studies san antonio maintain pfizer breast cancer vitamin d austrian astrazeneca monarch abstract oncology merck novartis nausea asco genentech tropics adc dexa pallas interstitial tpc her2 pfs boehringer ingelheim gilead sciences cdk adcs mylan ild jefferson health onj asco annual meeting daiichi sankyo cdk4 paclitaxel fgfr her3 breast oncology pik3ca seattle genetics esr1 t dxd sidney kimmel cancer center hope rugo t dm1 transcript dr monaleesa disclosures dr sermonix pharmaceuticals kevin kalinsky

Phase 3 DESTINY-Breast03 Impresses at ASCO 2022

Play Episode Listen Later Jun 7, 2022 18:57

Welcome to this episode of Physician's Weekly podcast. I am your host Dr Rachel Giles, from Medicom Medical Publishers in collaboration with Physician's Weekly. This week, we have 2 really interesting interviews about very different topics. I will start with the second interview. The 2022 American Society of Clinical Oncology (ASCO) Annual Meeting, was held 3 -7 June 2022 in Chicago, IL. One of the most covered topics talked in the hallways and you may have read in newspapers, was about precision treatment in aggressive breast cancer. It all started 24 years ago, when a drug called Herceptin changed how doctors treat breast cancer. Its approval in 1998 made it possible to target the aggressive breast tumors tied to a gene called HER2. Other drugs quickly followed Herceptin and, over the years since, have substantially improved survival for people with the disease.A quarter of a century later, another shift in treatment could be on the horizon. At the American Society of Clinical Oncology meeting, researchers presented results proving that, for the first time, a targeted medicine, called trastuzumab deruxtecan (or T-Dxd for short) can help metastatic breast cancer patients whose tumors express only low levels of HER2. Because many more patients may soon be eligible for treatment with T-Dxd, we focused on a safety follow-up analysis of the randomized phase 3 DESTINY-Breast03 study reinforced the risk-benefit profile of trastuzumab deruxtecan compared with trastuzumab emtansine in patients with HER2-positive unresectable or metastatic breast cancer. We speak with Prof. Guiseppe Curigliano (University of Milan, Italy) to learn the latest results. But first, we speak with Sonya M. Sloan, MD, better known as #OrthoDoc, has established herself as a force to be reckoned with in the male-dominated field of Orthopedic Surgery. Licensed to practice medicine in several states, she travels the country as a locum tenens physician. There's a shortage of doctors in America, and all types of facilities need locum tenens providers to relieve physician burnout, maintain patient satisfaction, and stay fully staffed during busy times, or while searching for a permanent doctor. Furthermore, locum tenens helps more people see a provider and receive care, offsetting the physician shortage in underserved areas—especially rural communities, urban areas with health professional shortages, VA hospitals, and Indian Health Service facilities. A 2021 survey indicated that 72% of healthcare facility managers are seeking locum tenens physicians. This is up from 47% in 2016 and up from 39% in 2012. Physician's Weekly senior editor Martta Kelly interviews Dr. Sloan. Dr. Sloan is the author of a book titled The Rules of Medicine: A Medical Professionals Guide to Success Extra reading: Modi S, Jacot W, Yamashita T, Sohn J, Vidal M, Tokunaga E, Tsurutani J, Ueno NT, Prat A, Chae YS, Lee KS, Niikura N, Park YH, Xu B, Wang X, Gil-Gil M, Li W, Pierga JY, Im SA, Moore HCF, Rugo HS, Yerushalmi R, Zagouri F, Gombos A, Kim SB, Liu Q, Luo T, Saura C, Schmid P, Sun T, Gambhire D, Yung L, Wang Y, Singh J, Vitazka P, Meinhardt G, Harbeck N, Cameron DA. Trastuzumab Deruxtecan in Previously Treated HER2-Low Advanced Breast Cancer. N Engl J Med. 2022 Jun 5. doi: 10.1056/NEJMoa2203690. Epub ahead of print. PMID: 35665782.

america chicago italy md va prof physicians american society epub phase 3 pmid asco orthopedic surgery her2 new england journal of medicine clinical oncology indian health service herceptin t dxd clinical oncology asco annual meeting sonya m sloan

2021 Research Round Up: Brain Tumors and Gastrointestinal Cancers

Cancer.Net Podcasts

Play Episode Listen Later Sep 30, 2021 22:51

ASCO: You're listening to a podcast from Cancer.Net. This cancer information website is produced by the American Society of Clinical Oncology, known as ASCO, the world's leading professional organization for doctors who care for people with cancer. The purpose of this podcast is to educate and to inform. This is not a substitute for professional medical care and is not intended for use in the diagnosis or treatment of individual conditions. Guests on this podcast express their own opinions, experience, and conclusions. The mention of any product, service, organization, activity, or therapy should not be construed as an ASCO endorsement. Cancer research discussed in this podcast is ongoing, so the data described here may change as research progresses. In the Research Round Up series, members of the Cancer.Net Editorial Board discuss the most exciting and practice-changing research in their field and explain what it means for people with cancer. In today's episode, Cancer.Net Associate Editors discuss new research in brain tumors and gastrointestinal cancers presented at the 2021 ASCO Annual Meeting, held virtually June 4-8. First, Dr. Glenn Lesser will discuss new research in 2 types of brain tumors, craniopharyngioma and glioblastoma. Dr. Lesser is the Louise McMichael Miracle Professor and Associate Chief in the section on Hematology and Oncology in the Department of Internal Medicine at Wake Forest University, and is the Director of Medical Neuro-Oncology at the Atrium Health Wake Forest Baptist Comprehensive Cancer Center. He is also the Cancer.Net Associate Editor for central nervous system tumors. View Dr. Lesser's disclosures at Cancer.Net. Dr. Lesser: Hello. My name is Glenn Lesser, and I'm a professor of medical oncology and the Director of Medical Neuro-oncology at the Wake Forest Baptist Comprehensive Cancer Center in Winston-Salem, North Carolina. I'm also the editor of the brain tumor section for ASCO's Cancer.Net. And today, I would like to briefly discuss 2 clinically relevant research studies involving patients with brain tumors that were presented at this year's ASCO's Virtual Scientific Program. I have no disclosures or relationships relevant to the second abstract I'll be discussing today. But by way of full disclosure, I have enrolled patients and I'm a co-investigator on the first study I'll describe. As an introduction to those listeners not familiar with the current treatment options for patients with brain tumors, it's important to remember that patients with primary tumors of the brain have not seen the recent rapid advances in effective treatment strategies that patients with other malignancies have experienced. Thus, those of us who treat these patients really actively await the research results, which are presented and highlighted annually in several of our key national meetings, including ASCO, or the American Society of Clinical Oncology, Annual Meeting, which was, again, held virtually this year in light of the pandemic. I have selected several abstracts whose results, I believe, have immediate clinical relevance and can be used to modify our current standard of care therapies for the subgroups studied. First abstract of interest was the presentation by Dr. Brastianos, who is the principal investigator of the Alliance A071601 study, which is a phase II trial of BRAF/MEK inhibition in patients with a tumor called a newly diagnosed papillary craniopharyngioma. A craniopharyngioma's a very uncommon tumor that can occur in both adults and children. And it typically arises in the region of the optic chiasm, a very important structure related to vision, and the pituitary gland, which is responsible for the production of a variety of hormones or compounds which stimulate other glands in the body to produce key hormones. These tumors often have cystic and solid components. And, as they grow, they compress the optic chiasm and the pituitary gland to produce symptoms, including loss of bilateral peripheral vision. Standard therapy for these lesions has included 1 or more surgeries and treatment with radiation therapy, including both external beam radiation and stereotactic radiosurgery. Although these tumors are generally not felt to be malignant, their continued growth and compression of surrounding structures leads to significant morbidity and symptoms, which dramatically worsen the quality of life of patients who have them and which, rarely, can be fatal. In adults, the most common variant of these tumors is called a papillary craniopharyngioma. And Dr. Brastianos and others have previously shown that these papillary tumors almost always have a driver mutation known as a BRAF V600E mutation. Now, a driver mutation is a specific mutation in the DNA, the instruction manual of the tumor cells, that gives those cells a selective growth advantage and, thus, promotes the cancer's development and spread. In contrast, passenger mutations are mutations that may be present in the cancer cells but don't directly promote their growth or survival. The tumors that contain these driver mutations have the potential to be selectively targeted and effectively controlled by drugs which have been developed against that particular characteristic mutation. So this study builds on earlier case reports showing fairly dramatic regressions of these tumors with the use of agents that have been developed to target the BRAF V600E mutation, which is a characteristic of the more common aggressive melanoma skin cancer. Over the last decade, 3 sets of drugs have been developed and brought to market, which have great efficacy in killing cells with this specific mutation. These drugs include a BRAF inhibitor, which targets the BRAF gene, and a MEK inhibitor, which essentially blocks an escape mechanism that the tumor cells try to use when confronted by the BRAF inhibitor. This is the only example I know of in oncology where giving 2 drugs leads to actually fewer side effects than if only the BRAF inhibitor was given by itself. But this trial had 2 cohorts of patients, 1 where it involves 16 patients with newly diagnosed craniopharyngiomas and a second arm enrolled patients whose craniopharyngioma recurred after radiation plus or minus surgery. The drugs used in this trial were vemurafenib and cobimetinib. And the goal was to give patients at least 4 months of this oral combination therapy. Dr. Brastianos presented the results of the newly diagnosed cohort, or Cohort A, at this year's ASCO. Remarkably, 15 of the 16 treated patients, or 94% of those treated, had a volumetric response, meaning a significant shrinkage of the tumor based on a central, independent review of their brain MRI scans. In fact, the only patient who didn't respond only received 2 days of treatment before they had to stop the medications due to some drug-related toxicity. So not only did these patients respond, but the median reduction in their tumor size was about 91%. And, furthermore, these responses appeared to last a long time, with only 1 patient recurring at the time the data was analyzed for ASCO. The estimated overall survival of the patients on Cohort A at 2 years was 100%, while their estimated progression-free survival at 2 years was 93%. Phenomenal results. These drugs do have a variety of side effects which can occur to someone commonly and may lead to drug discontinuation in as many as a third of patients, although not nearly that many discontinue these drugs due to toxicity on this particular trial. These results, I believe, really establish combination-drug therapy with BRAF and MEK inhibitors as an effective standard-of-care option for selected patients with these newly diagnosed papillary craniopharyngiomas that contain a BRAF mutation. We're anxiously awaiting both longer-term follow-up of this study to determine the durability of these responses as well as the presentation of the results of Cohort B, which treated patients with recurrent disease after radiation. The second study I'd like to highlight was presented in the oral poster session by Dr. Domenech on behalf of her colleagues in the GEINO, the Spanish Neuro-oncology Cooperative Group Trial 14-01. She presented the long-term results of this prospective trial, which randomized patients with newly diagnosed glioblastoma to 6 cycles of adjuvant temozolomide versus continuing the temozolomide for up to 12 monthly cycles of therapy. But since the publication of Dr. Roger Stupp's landmark trial in the New England Journal of Medicine in 2005, the standard therapeutic approach around the world for patients with newly diagnosed glioblastoma has included concurrent radiation and temozolomide chemotherapy for about 6 weeks, so both given at the same time, followed by monthly adjuvant temozolomide for 6 to 12 months with the drug being given for 5 days in a row each month. We have learned much about the molecular subgroups of glioblastoma and the characteristic molecular findings that may predict a given patient's responsiveness to this therapy since this publication. To date, however, clinical trials have not convincingly determined whether the benefits seen by adding chemotherapy to radiation stem from the concurrent phase of therapy, the adjuvant or post-radiation phase of therapy, or the entirety of the concurrent followed by adjuvant temozolomide. Furthermore, although the initial pivotal study described only 6 months of adjuvant monthly temozolomide to patients, many practitioners have felt that, frankly, more is better, particularly with a well-tolerated drug like temozolomide. And many physicians routinely give up to 12, or even more, monthly cycles of the drug. As a result, many clinical trials over the last 15 years have allowed investigators to treat to the duration of their choice. Those in favor of this approach believe that more anti-cancer therapy is better, while those who limit temozolomide to only 6 months cite the increased cost, the increased rate of side effects or toxicities, as well as the mutational stress that prolonged alkylating therapy might put on tumors, which can theoretically lead to a more resistant tumor at the time of recurrence. GEINO 14-01, which enrolled 159 patients, is the only large, prospective attempt to randomize patients to 6 or 12 cycles of adjuvant temozolomide therapy. The presented findings clearly show that adding 6 cycles of temozolomide after the first 6 adjuvant cycles produced no additional benefit in overall survival. With a median follow-up of about 20 months, there was no difference in the percent of patients surviving at 2 years between the arms, nor was there a difference in the percent of long-term survivors defined as survival of at least 30 months from the diagnosis. Patients in the extended therapy arm did experience an increase in hematologic or blood count toxicities in addition to the added cost and additional doctor visits the extended treatment generated. The authors, somewhat respectfully, concluded that the results of this trial should be corroborated in a prospective phase III trial. However, it's unlikely that such a trial will ever be mounted. And these results are likely going to be the best data we have to guide our approach in the future. Although more data will be provided in the full publication of the results of this trial, the presented results indicate that in most patients with newly diagnosed glioblastoma, the standard of care should involve a maximum of 6 months of adjuvant temozolomide chemotherapy. In conclusion, the investigative teams behind both of these studies I've just described are to be commended on their efforts, which provide guidance on how best to care for patients with craniopharyngiomas and newly diagnosed glioblastoma. These studies are also outstanding examples of why well-done clinical trials that carefully test and evaluate the beneficial effects, as well as the toxicities of new cancer treatments, are critical to our goal of optimizing the treatment of our patients with cancer. Thanks so much for listening today. ASCO: Thank you Dr. Lesser. Next, Dr. Jeffrey Meyerhardt will discuss new research in esophageal and colorectal cancer. Dr. Meyerhardt is the Douglas Gray Woodruff Chair in Colorectal Cancer Research, Clinical Director and Senior Physician at the Gastrointestinal Cancer Center at the Dana-Farber Cancer Institute, Deputy Clinical Research Officer at the Dana-Farber Cancer Institute, and Professor of Medicine at Harvard Medical School. He is also the Cancer.Net Associate Editor for gastrointestinal cancers. View Dr. Meyerhardt's disclosures at Cancer.Net. Dr. Meyerhardt: My name is Jeffrey Meyerhardt. I'm a gastrointestinal oncologist at the Dana-Farber Cancer Institute in Boston, Massachusetts. I'm an Associate Editor of Cancer.Net, ASCO's patient information site. Today, I'm going to discuss research on gastrointestinal cancers that were presented at the 2021 ASCO Annual Meeting. I do not have any relationships to disclose related to these studies. I'm going to focus on some studies related to esophageal and gastric cancer as well as studies in colorectal cancer. For esophageal and gastric cancer, we saw a variety of studies for immunotherapy in different settings. I think some important background information in considering esophageal and gastric cancer is that there are similarities and differences between the 2 cancers. Esophageal cancers can be squamous cell or adenocarcinomas. Gastric cancers that'll be discussed here are adenocarcinomas. In between the esophagus and the stomach is the gastroesophageal junction, one of the cancers with increasing incidence overall. They are also typically adenocarcinomas. For non-metastatic disease, the location of disease is treated differently. But for metastatic disease, most standard chemotherapy trials lump all of these sites together and have mixed squamous cell carcinoma and adenocarcinoma of the esophagus together. However, with immunotherapy, there are differences emerging to rethink this concept. While there are challenges in finding reliable markers to determine efficacy of immunotherapy in all cancer types, 2 markers have emerged relevant to gastro and esophageal cancer, PD-L1, or the combined positive score, and tumor mutational burden, which signals immunogenicity of a cancer. While there were a wealth of studies of immunotherapy, 1 study that was noteworthy at this year's ASCO was CheckMate 648. The CheckMate studies have focused on the PD-1 inhibitor nivolumab. Checkmate-648 was a randomized study comparing unresectable advanced, recurrent, or metastatic esophageal squamous cell carcinoma, previously untreated, randomized to 1 of 3 treatments. Nivolumab with 2 standard chemotherapies, 5-FU and cisplatinum, versus nivolumab and ipilimumab, a no-chemotherapy, just-immunotherapy arm, or chemotherapy only with 5-FU and cisplatinum. Nivolumab and ipilimumab was superior to chemotherapy only alone for overall survival and progression-free survival, particularly in patients with PD-L1 scores greater than or equal to 1%. Of note, there are some patients that don't benefit early on, which has been seen in other studies comparing chemotherapy to immunotherapy. There was similar overall and progression-free survival for immunotherapy alone compared to nivolumab, 1 immunotherapy with chemotherapy. More immunotherapy-related toxicities were seen with the combined immunotherapy arm, but more GI toxicities were seen with nivolumab plus chemotherapy. Overall, this study provides a non-chemotherapy option for patients as initial therapy for esophageal squamous cell carcinoma. Turning to colorectal cancers, there are 2 studies that I wanted to highlight. The first study was the DESTINY-CRC01 study. This was a phase II study of trastuzumab deruxtecan, T-DXd, which is an antibody-drug conjugate of humanized anti-HER2 antibody bound to a chemotherapy, a topoisomerase I inhibitor. A phase II study means all patients got the same drug. The study focused on a limited population of metastatic colorectal cancer patients who overexpressed a protein called HER2. As with other cancer types, it is important to have molecular testing of colorectal cancer that may determine certain treatment options for patients. The several molecular features in colorectal cancer that are proven most important in treatment decisions include microsatellite instability, a feature that predicts effectiveness of immunotherapy; KRAS and RAS mutations that the lack of efficacy of a class of drugs called epidermal growth factor inhibitors like cetuximab and panitumumab; BRAF, which has specific drugs that target this mutation; and HER2. HER2 overexpression was first targeted in breast cancer. And there are also overexpressing stomach cancers that benefit from HER2-directed therapy. Approximately 3 to 4 percent of metastatic colorectal cancers overexpressed HER2. The DESTINY trial focused on patients who had progressed on at least 2 prior lines of therapy. So a heavily-pretreated population, 45% of patients with significant overexpression had a response to therapy. And 83% had disease control with a median of greater than half a year. Interestingly, the drug was meaningfully active in patients who had prior HER2-directed therapy. While the drug had some expected toxicities, 9% of patients also experienced something called interstitial lung disease, inflammation of the lungs, which would need to be monitored. However, this drug does show promise in the armamentarium of targeted therapies for metastatic colorectal cancer. The last trial I wanted to focus on is FOCUS4. This trial compared maintenance therapy with capecitabine, an oral form of 5-FU, versus active monitoring for patients with metastatic colorectal cancer. This is a topic that I found so important over the years and have not received as much attention I think it deserves. Fortunately, there are multiple trials in this field. And I think it's important to highlight them when new ones result. The basic principle is that when treating colorectal cancer these days with combinations of different chemotherapies, it is not uncommon to have a patient experience good disease control for prolonged periods of time. Initially, trials for metastatic colorectal cancer decades ago just continued therapy for as long as the disease was controlled for undue toxicities. However, with more effective therapies, there also have been increasing cumulative toxicities that catch up with patients over time. And there has been interest in continuing and considering changing at some point from multiple combination regimens to either maintenance therapy, some people call “chemotherapy light,” or giving a full holiday off therapy. And there have been multiple trials over the years that have looked at these strategies. What is clear from those trials is that patients don't do better just staying on combination therapy. However, maintenance therapy is still chemotherapy. And a key to understand, is that even necessary? Are patients compromising outcomes by taking periods off of treatment? FOCUS4 was a trial in the U.K. that randomized patients with metastatic colorectal cancer whose disease was controlled after 16 weeks of first-line combination therapy. They received either capecitabine with a usual 2 weeks of pills followed by 1-week break--or active monitoring with scans every 8 weeks. While the time till this tumor grew was shorter fully off of chemotherapy, the overall survival was not different between the 2 arms. This lack of overall survival has proven out in other trials. It was recently seen in a meta-analysis published in the Journal of the American Medical Association of Oncology recently. Active monitoring may not be the best option for every patient. But I think it is an important discussion between patients and their oncologists to balance quality of life and continued disease control. Thank you for listening to this brief summary of new research in gastrointestinal cancers from the 2021 ASCO Annual Meeting. ASCO: Thank you, Dr. Meyerhardt. You can find more research from recent scientific meetings at www.cancer.net. And if this podcast was useful, please take a minute to subscribe, rate, and review the show wherever you listen to podcasts. This Cancer.Net podcast is part of the ASCO Podcast Network. This collection of 9 programs offers insight into the world of cancer care, covering a range of educational, inspirational, and scientific content. You can find all 9 shows, including this one, at podcast.asco.org. Cancer.Net is supported by Conquer Cancer, the ASCO Foundation, which funds lifesaving research for every type of cancer, helping patients everywhere. To help fund Cancer.Net and programs like it, donate at CONQUER.ORG/Donate.

Gastrointestinal Cancers | Oncology Today with Dr Neil Love: Key Presentations on Gastrointestinal Cancers from the 2021 ASCO Annual Meeting