Podcasts about ctdna

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Play Episode Listen Later Feb 18, 2026 27:46

JCO PO author Dr. Foldi at UPMC Hillman Cancer Center and University of Pittsburgh School of Medicine shares insights into the JCO PO article, "Personalized Circulating Tumor DNA Testing for Detection of Progression and Treatment Response Monitoring in Patients With Metastatic Invasive Lobular Carcinoma of the Breast." Host Dr. Rafeh Naqash and Dr. Foldi discuss how serial ctDNA testing in patients with mILC is feasible and may enable personalized surveillance and real-time therapeutic monitoring. TRANSCRIPT Dr. Rafeh Naqash: Hello, and welcome to JCO Precision Oncology Conversations, where we bring you engaging conversations with authors of clinically relevant and highly significant JCO PO articles. I am your host, Dr. Rafeh Naqash, podcast editor for JCO Precision Oncology and Associate Professor at the OU Health Stephenson Cancer Center at the University of Oklahoma. Today, we are thrilled to be joined by Dr. Julia Foldi, Assistant Professor of Medicine in the Division of Hematology-Oncology at University of Pittsburgh School of Medicine and the Magee-Womens Hospital of the UPMC. She is also the lead and corresponding author of the JCO Precision Oncology article entitled "Personalized Circulating Tumor DNA Testing for Detection of Progression and Treatment Response Monitoring in Patients with Metastatic Invasive Lobular Carcinoma of the Breast." At the time of this recording, our guest's disclosures will be linked in the transcript. Julia, welcome to our podcast, and thank you for joining us today. Dr. Julia Foldi: Thank you so much for having me. It is a pleasure. Dr. Rafeh Naqash: Again, your manuscript and project address a few interesting things, so we will start with the basics, since we have a broad audience that comprises trainees, community oncologists, and obviously precision medicine experts as well. So, let us start with invasive lobular breast carcinoma. I have been out of fellowship for several years now, and I do not know much about invasive lobular carcinoma. Could you tell us what it is, what some of the genomic characteristics are, why it is different, and why it is important to have a different way to understand disease biology and track disease status with this type of breast cancer? Dr. Julia Foldi: Yes, thank you for that question. It is really important to frame this study. So, lobular breast cancers, which we shorten to ILC, are the second most common histologic subtype of breast cancer after ductal breast cancers. ILC makes up about 10 to 15 percent of all breast cancers, so it is relatively rare, but in the big scheme of things, because breast cancer is so common, this represents actually over 40,000 new diagnoses a year in the US of lobular breast cancers. What is unique about ILC is it is characterized by loss of an adhesion molecule, E-cadherin. It is encoded by the CDH1 gene. What it does is these tumors tend to form discohesive, single-file patterns and infiltrate into the tumor stroma, as opposed to ductal cancers, which generally form more cohesive masses. As we generally explain to patients, ductal cancers tend to form lumps, while lobular cancers often are not palpable because they infiltrate into the stroma. This creates several challenges, particularly when it comes to imaging. In the diagnostic setting, we know that mammograms and ultrasounds have less sensitivity to detect lobular versus ductal breast cancer. When it comes to the metastatic setting, conventional imaging techniques like CT scans have less sensitivity to detect lobular lesions often. One other unique characteristic of ILC is that these tumors tend to have lower proliferation rates. Because our glucose-based PET scans depend on glucose uptake of proliferating cells, often these tumors also are not avid on conventional FDG-PET scans. It is a challenge for us to monitor these patients as they go through treatment. If you think about the metastatic setting, we start a new treatment, we image people every three to four cycles, about every three months, and we combine the imaging results with clinical assessment and tumor markers to decide if the treatment is working. But if your imaging is not reliable, sometimes even at diagnosis, to really detect these tumors, then really, how are we following these patients? This is really the unique challenge in the metastatic setting in patients with lobular breast cancer: we cannot rely on the imaging to tell if patients are responding to treatment. This is where liquid biopsies are really, really important, and as the field is growing up and we have better and better technologies, lobular breast cancer is going to be a field where they are going to play an important role. Dr. Rafeh Naqash: Thank you for that easy-to-understand background. The second aspect that I would like to have some context on, to help the audience understand why you did what you did, is ctDNA, tumor informed and non-informed. Could you tell us what these subtypes of liquid biopsies are and why you chose a tumor informed assay for your study? Dr. Julia Foldi: Yes, it is really important to understand these differences. As you mentioned, there are two main platforms for liquid biopsy assays, circulating tumor DNA assays. I think what is more commonly used in the metastatic setting are non-tumor informed assays, or agnostic assays. These are generally next-generation sequencing-based assays that a lot of companies offer, like Guardant, Tempus, Caris, and FoundationOne. These do not require tumor tissue; they just require a blood sample, a plasma sample, essentially. The next-generation sequencing is done on cell-free DNA that is extracted from the plasma, and it is looking for any cell-free DNA and essentially, figuring out what part of the cell-free DNA comes from the tumor is done through a bioinformatics approach. Most of these assays are panel tests for cancer-associated mutations that we know either have therapeutic significance or biologic significance. So, the results we receive from these tests generally read out specific mutations in oncogenic genes, or sometimes things like fusions where we have specific targeted drugs. Some of the newer assays can also read out tumor fraction; for example, the newest generation Guardant assay that is methylation-based, they can also quantify tumor fraction. But the disadvantage of the tumor agnostic approach is that it is a little bit less sensitive. Opposed to that, we have our tumor informed tests, and these require tumor tissue. Essentially, the tumor is sequenced; this can either be whole exome or whole genome sequencing. The newer generation assays are now using whole genome sequencing of the tumor tissue, and a personalized, patient-specific panel of alterations is essentially barcoded on that tumor tissue. This can be either structural variants or it can be mutations, but generally, these are not driver mutations, but sort of things that are present in the tumor tissue that tend to stay unchanged over time. For each particular patient, a personalized assay, if you want to call it a fingerprint or barcode, is created, and then that is what then is used to test the plasma sample. Essentially, you are looking for that specific cancer in the blood, that barcode or fingerprint in the blood. Because of this, this is a much more sensitive way of looking for ctDNA, and obviously, this detects only that particular tumor that was sequenced originally. So, it is much more sensitive and specific to that tumor that was sequenced. You can argue for both approaches in different settings. We use them in different settings because they give us different information. The tumor agnostic approach gives us mutations, which can be used to determine what the next best therapy to use is, while the tumor informed assay is more sensitive, but it is not going to give us information on therapeutic targets. However, it is quantified, and we can follow it over time to see how it changes. We think that it is going to tell us how patients respond to treatment because we see our circulating tumor DNA levels rise and fall as the cancer burden increases or decreases. We decided to use the tumor informed approach in this particular study because we were really interested in how to determine if patients are having response to treatment versus if they are going to progress on their treatment, more so than looking for specific mutations. Dr. Rafeh Naqash: When you think about these tumor informed assays and you think about barcoding the mutations on the original tumor that you try to track or follow in subsequent blood samples, plasma samples, in your experience, if you have done it in non-lobular cancers, do you think shedding from the tumor has something to do with what you capture or how much you capture? Dr. Julia Foldi: Absolutely. I think there are multiple factors that go into whether someone has detectable ctDNA or not, and that has to do with the type of cancer, the location, right, where is the metastatic site? This is something that we do not fully understand yet: what are tumors that shed more versus not? There is also clearance of ctDNA, and so how fast that clearance occurs is also something that will affect what you can detect in the blood. ctDNA is very short-lived, only has a half-life of hours, and so you can imagine that if there is little shedding and a lot of excretion, then you are not going to be detecting a lot of it. In general, in the metastatic setting, we see that we can detect ctDNA in a lot of cases, especially when patients are progressing on treatment, because we imagine their tumor burden is higher at that point. Even with the non-tumor informed assays, we detect a lot of ctDNA. Part of this study was to actually assess: what is the proportion of patients where we can have this information? Because if we are only going to be able to detect ctDNA in less than 50 percent of patients, then it is not going to be a useful method to follow them with. Because this field is new and we have not been using a lot of tumor informed assays in the metastatic setting, we did not really know what to expect when we set out to look at this. We did not know what was going to be the baseline detection rate in this patient population, so that was one of the first things that we wanted to answer. Dr. Rafeh Naqash: Excellent. Now going to this manuscript in particular, what was the research question, what was the patient population, and what was the strategy that you used to investigate some of these questions? Dr. Julia Foldi: So, we partnered with Natera, and the reason was that their Signatera tumor-informed assay was the first personalized, tumor-informed, really an MRD assay, minimal residual disease detection assay. It has been around the longest and has been pretty widely used commercially already, even though some of our data is still lacking. but we know that people are using this in the real world. We wanted to gather some real-world data specifically in lobular patients. So, we asked Natera to look at their database of commercial Signatera testing and look for patients with stage 4 lobular breast cancer. The information all comes from the submitting physicians sending in pathologic reports and clinical notes, and so they have that information from the requisitions essentially that are sent in by the ordering physician. We found 66 patients who were on first-line or close to first-line endocrine-based therapies for their metastatic lobular breast cancer and had serial collections of Signatera tests. The way we defined baseline was that the first Signatera had to be sent within three months of starting treatment. So, it is not truly baseline, but again, this is a limitation of looking at real-world data is that you are not always going to get the best time point that you need. We had over 350 samples from those 66 patients, again longitudinal ctDNA samples, and our first question was what is the baseline detection rate using this tumor informed assay? Then, most importantly, what is the concordance between changes in ctDNA and clinical response to treatment? That is defined by essentially radiologic response to treatment. Dr. Rafeh Naqash: Interesting. So, what were some of your observations in terms of ctDNA dynamics, whether baseline levels made a difference, whether subsequent levels at different time points made a difference, or subsequent levels at, let us say, cycle three made a difference? Were there any specific trends that you saw? Dr. Julia Foldi: So, first, at baseline, 95 percent of patients had detectable ctDNA, which is, I think, a really important data point because it tells us that this can be a really useful test. If we can detect it in almost all patients before they start treatment, we are going to be able to follow this longitudinally. And again, these were not true baseline samples. So, I think if we look really at baseline before starting treatment, almost all patients will have detectable ctDNA in the metastatic setting. The second important thing we saw was that disease progression correlated very well with increase in ctDNA. So, in most patients who had disease progression by imaging, we saw increase in ctDNA. Conversely, in most patients who had clinical benefit from their treatment, so they had a response or stable disease, we saw decrease in ctDNA levels. It seems that what we call molecular response based on ctDNA is tracking very nicely along with the radiographic response. So, those were really the two main observations. Again, this is a small cohort, limited by its real-world nature and the time points that ctDNA assay was sent was obviously not mandated. This is a real-world data set, and so we could not really look at specific time points like you asked about, let us say, cycle three of therapy, right? We did not have all of the right time points for all of the patients. But what we were able to do was to graph out some specific patient scenarios to illustrate how changes in ctDNA correlate with imaging response. I can talk a little bit about that. Dr. Rafeh Naqash: That was going to be my question. Did you see patients who had serial monitoring using the tumor informed ctDNA assay where the assay became positive a few months before the imaging? Did you have any of those kinds of observations? Dr. Julia Foldi: Yes, so I think this is where the field is going: are we able to use this technology to maybe detect progression before it becomes clinically apparent? Of course, there are lots of questions about: does that really matter? But it seems like, based on some of the patient scenarios that we present in the paper, that this testing can do that. So, we had a specific scenario, and this is illustrated in a figure in the paper, really showing the treatment as well as the changes in ctDNA, tumor markers, and also radiographic response. So, this particular patient was on first-line endocrine therapy and CDK4/6 inhibitor with palbociclib. Initially, she had a low-level detectable ctDNA. It became undetectable during treatment, and the patient had a couple of serial ctDNA assays that were negative, so undetectable. And then we started, after about seven months on this combination therapy, the ctDNA levels started rising. She actually had three serial ctDNA assays with increasing level of ctDNA before she even had any imaging tests. And then around the time that the ctDNA peaked, this patient had radiographic evidence of progression. There was also an NGS-based assay sent to look for specific mutations at that point. The patient was found to have an ESR1 mutation, which is very common in this patient population. She was switched to a novel oral SERD, elacestrant, and the ctDNA fell again to undetectable within the first couple months of being on elacestrant. And then a very similar thing happened: while she was on this second-line therapy, she had three serial negative ctDNA assays, and then the fourth one was positive. This was two months before the patient had a scan that showed progression again. Dr. Rafeh Naqash: And Julia, like you mentioned, this is a small sample size, limited number of patients, in this case, one patient case scenario, but provides insights into other important aspects around escalation or de-escalation of therapy where perhaps ctDNA could be used as an integral biomarker rather than an exploratory biomarker. What are some of your thoughts around that and how is the breast cancer space? I know like in GI and bladder cancer, there has been a significant uptrend in MRD assessments for therapeutic decision making. What is happening in the breast cancer space? Dr. Julia Foldi: So, super interesting. I think this is where a lot of our different fields are going. In the breast cancer space, so far, I have seen a lot of escalation attempts. It is not even necessarily in this particular setting where we are looking at dynamics of ctDNA, but in the breast cancer world, of course, we have a lot of data on resistance mutations. I mentioned ESR1 mutation in a particular patient in our study. ESR1 mutations are very common in patients with ER-positive breast cancer who are on long-term endocrine therapy, and ESR1 mutations confer resistance to aromatase inhibitors. So, that is an area that there has been a lot of interest in trying to detect ESR1 mutations earlier and switching therapy early. So, this was the basis of the SERENA-6 trial, which was presented last year at ASCO and created a lot of excitement. This was a trial where patients had non-tumor-informed NGS-based Guardant assay sent every three to six months while they were on first-line endocrine therapy with a CDK4/6 inhibitor. If they had an ESR1 mutation detected, they were randomized to either continue the same endocrine therapy or switch to an oral SERD. The trial showed that the population of patients who switched to the oral SERD did better in terms of progression-free survival than those who stayed on their original endocrine therapy. There are a lot of questions about how to use this in routine practice. Of course, it is not trivial to be sending a ctDNA assay every three to six months. The rate of detection of these mutations was relatively low in that study; again, the incidence increases in later lines of therapy. So, there are a lot of questions about whether we should be doing this in all of our first-line patients. The other question is, even the patients who stayed on their original endocrine therapy were able to stay on that for another nine months. So, there is this question of: are we switching patients too early to a new line of therapy by having this escalation approach? So, there are a lot of questions about this. As far as I know, at least in our practice, we are not using this approach just yet to escalate therapy. Time will tell how this all pans out. But I think what is even more interesting is the de-escalation question, and I think that is where tumor informed assays like Signatera and the data that our study generated can be applied. Actually, our plan is to generate some prospective data in the lobular breast cancer population, and I have an ongoing study to do that, to really be able to tease out the early ctDNA dynamics as patients first start on endocrine therapy. So, this is patients who are newly diagnosed, they are just starting on their first-line endocrine therapy, and measure, with sensitive assays, measure ctDNA dynamics in the first few months of therapy. In those patients who have a really robust response, that is where I think we can really think about de-escalation. In the patients whose ctDNA goes to undetectable after just a few weeks of therapy with just an endocrine agent, they might not even need a CDK4/6 inhibitor in their first-line treatment. So, that is an area where we are very interested in our group, and I know that other groups are looking at this too, to try to de-escalate therapy in patients who clear their ctDNA early on. Dr. Rafeh Naqash: Thank you so much. Well, lots of questions, but at the same time, progress comes through questions asked, and your project is one of those which is asking an interesting question in a rarer cancer and perhaps will lead to subsequent improvement in how we monitor these individuals and how we escalate or de-escalate therapy. Hopefully, we will get to see more of what you are working on in subsequent submissions to JCO Precision Oncology and perhaps talk more about it in a couple of years and see how the space and field is moving. Thanks again for sharing your insights. I do want to take one to two quick minutes talking about you as an investigator, Julia. If you could speak to your career pathway, your journey, the pathway to mentorship, the pathway to being a mentor, and how things have shaped for you in your personal professional growth. Dr. Julia Foldi: Sure, yeah, that is great. Thank you. So, I had a little bit of an unconventional path to clinical medicine. I actually thought I was going to be a basic scientist when I first started out. I got a PhD in Immunology right out of college and was studying not even anything cancer-related. I was studying macrophage signaling in inflammatory diseases, but I was in New York City. This was right around the time that the first checkpoint inhibitors were approved. Actually, some of my friends from my PhD program worked in Jim Allison's lab, who was the basic scientist responsible for ipilimumab. So, I got to kind of first-hand experience the excitement around bringing something from the lab into the clinic that actually changed really the course of oncology. And so, I got very excited about oncology and clinical medicine. So, I decided to kind of switch gears from there and I went back to medical school after finishing my PhD and got my MD at NYU. I knew I wanted to do oncology, so I did a research track residency and fellowship combined at Yale. I started working early on with the breast cancer team there. At the time, Lajos Pusztai was the head of translational research there at Yale, and I started working with him early in my residency and then through my fellowship. I worked on several trials with him, including a neoadjuvant checkpoint inhibitor trial in triple-negative breast cancer patients. During my last year in fellowship, I received a Conquer Cancer Young Investigator Award to study estrogen receptor heterogeneity using spatial transcriptomics in this subset of breast cancers that have intermediate estrogen receptor expression. From there, I joined the faculty at the University of Pittsburgh in 2022. So, I have been there about almost four years at this point. My interests really shifted slowly from triple-negative breast cancers towards ER-positive breast cancers. When I arrived in Pittsburgh, I started working very closely with some basic and translational researchers here who are very interested in estrogen signaling and mechanisms of resistance to endocrine therapy, and there is a large group here interested in lobular breast cancers. During my training, I was not super aware even that lobular breast cancer was a unique subtype of breast cancers, and that is, I think, changing a little bit. There is a lot more awareness in the breast cancer clinical and research community about ILC being a unique subtype, but it is not even really part of our training in fellowship, which we are trying to change. But I have become a lot more aware of this because of the research team here and through that, I have become really interested also on the clinical side. And so, we do have a Lobular Breast Cancer Research Center of Excellence here at the University of Pittsburgh and UPMC, and I am the leader on the clinical side. We have a really great team of basic and translational researchers looking at different aspects of lobular breast cancers, and some of the work that I am doing is related to this particular manuscript we discussed and the next steps, as I mentioned, a prospective study of early ctDNA dynamics in lobular patients. I also did some more clinical research work in collaboration with the NSABP looking at long-term outcomes of patients with lobular versus ductal breast cancers in some of their older trials. And so, that is, in a nutshell, a little bit about how I got here and how I became interested in ILC. Dr. Rafeh Naqash: Well, thank you for sharing those personal insights and personal journey. I am sure it will inspire other trainees, fellows, and perhaps junior faculty in trying to find their niche. The path, as you mentioned, is not always straight; it often tends to be convoluted. And then finding an area that you are interested in, taking things forward, and being persistent is often what matters. Dr. Julia Foldi: Thank you so much for having me. It was great. Dr. Rafeh Naqash: It was great chatting with you. And thank you for listening to JCO Precision Oncology Conversations. Don't forget to give us a rating or review, and be sure to subscribe so you never miss an episode. You can find all ASCO shows at asco.org/podcasts. 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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Ep. 290 Urothelial Carcinoma: Consolidative Surgery & Treatment Approaches with Dr. Abhinav Khanna

BackTable Urology

Play Episode Listen Later Feb 17, 2026 59:12

What do you do when metastatic urothelial cancer responds dramatically to systemic therapy? In this episode of BackTable Urology, Dr. Abhinav Khanna (Mayo Clinic) speaks with host Dr. Daniel Roberson about the growing question of consolidative surgery after enfortumab vedotin plus pembrolizumab. They discuss how EV-pembro has reshaped treatment expectations, why unexpected complete or near-complete responses are prompting tumor board debates about cystectomy, and how careful multidisciplinary decision-making guides which patients may be considered for surgery. --- SYNPOSIS The conversation reviews early outcomes showing high rates of pathologic downstaging and the possibility that many patients may avoid additional systemic therapy after surgery, while emphasizing this approach is not yet standard of care. Dr. Khanna highlights coordination with medical oncology, radiology, and pathology, postoperative considerations, and the potential future role of biomarkers such as ctDNA. Ultimately, the episode underscores the need for clinical trials and thoughtful patient selection as clinicians navigate integrating surgery into an evolving systemic therapy landscape. --- TIMESTAMPS 00:00 - Introduction02:19 - The Evolution of Urothelial Carcinoma Treatment05:23 - Rationale for Consolidative Surgery12:32 - Patient Selection Criteria15:23 - Surgical Approach and Considerations23:58 - Pathologic Findings31:34 - The Role of Radiation39:38 - Biomarkers44:10 - Prospective Trials and Future Directions53:06 - Guidance for Urologists --- RESOURCES Consolidative Surgery for Advanced Urothelial Carcinoma Following Induction Enfortumab Vedotin and/or Immune Checkpoint Inhibitor Therapy: A Multicenter Analysishttps://pubmed.ncbi.nlm.nih.gov/40425390/ Enfortumab Vedotin and Pembrolizumab in Untreated Advanced Urothelial Cancerhttps://www.nejm.org/doi/full/10.1056/NEJMoa2312117 Standard or Extended Lymphadenectomy for Muscle-Invasive Bladder Cancerhttps://www.nejm.org/doi/abs/10.1056/NEJMoa2401497

Highlights hematología 2025

ScienceLink

Play Episode Listen Later Feb 17, 2026 28:22

La Dra. Anna Sureda Balari, hematóloga y jefa de Servicio de Hematología Clínica en el Institut Català d'Oncologia en Barcelona, España, nos habla sobre lo más representativo de hematología presentado durante el 2025.Mieloma Múltiple MajesTEC-3: estudio fase III que evaluó la eficacia y seguridad de teclistamab, un anticuerpo biespecífico dirigido a BCMA y CD3, en combinación con daratumumab, en pacientes con mieloma múltiple en recaída o refractario que habían recibido entre una y tres líneas previas de tratamiento. Los comparadores fueron los regímenes estándar basados en daratumumab, pomalidomida y dexametasona o daratumumab, bortezomib y dexametasona. [1]Linfomas EPCORE NHL-2: estudio fase 1b/2 que evaluó epcoritamab en combinación con R-CHOP en pacientes con LDCBG de alto riesgo en primera línea. Con casi 3 años de seguimiento, se observaron tasas elevadas de respuesta (ORR 98%, RC 85%) y una supervivencia libre de progresión cercana al 80%, con resultados consistentes incluso en pacientes con IPI 4–5 o enfermedad bulky. La mayoría de los pacientes alcanzó negatividad temprana y sostenida de enfermedad mínima residual por ctDNA, lo que sugiere una profunda erradicación tumoral. [2]OLYMPIA-3 parte 1A: cohorte exploratoria inicial del estudio fase III que evaluó odronextamab, un anticuerpo biespecífico CD20×CD3, añadido a R-CHOP en pacientes con linfoma difuso de células B grandes (LDCBG) recién diagnosticado. En una cohorte pequeña de aproximadamente 22 pacientes, tratados con un esquema de duración fija (≈5 ciclos), la combinación mostró altas tasas de respuesta y respuestas completas con toxicidad manejable. [3]COALITION: ensayo fase II, multicéntrico y abierto que evaluó la seguridad y eficacia de glofitamab + R-CHOP (brazo A) comparado con glofitamab + Pola-R-CHP (brazo B) en pacientes más jóvenes con LDCBG de alto riesgo. [4]FrontMIND: Estudio fase III, multicéntrico, aleatorizado que comparó R-CHOP + tafasitamab + lenalidomida frente a R-CHOP + placebo en pacientes adultos con LDCBG de alto riesgo recién diagnosticado. [5]Cohorte fase I/II del programa EPCORE: evaluación de epcoritamab en combinación con R-mini-CHOP en pacientes añosos y frágiles con LDCBG no candidatos a R-CHOP estándar. [6]EPCORE NHL-3: estudio clínico fase II que evaluó epcoritamab en monoterapia en pacientes con linfoma difuso de células B grandes (LDCBG) recaído o refractario, mostrando actividad clínica y respuestas duraderas con seguimiento a largo plazo. [7]EPCORE NHL-2: estudio fase 1b/2, evaluó epcoritamab en combinación con GemOx en pacientes con LDCBG recaído o refractario ineligible para trasplante autólogo, mostrando respuestas profundas y duraderas. [8] STARGLO: estudio fase III que evaluó glofitamab en combinación con GemOx frente a R-GemOx en pacientes con LDCBG en recaída o refractario que no eran candidatos a trasplante autólogo. [9] Entre otros...Material exclusivo para profesionales de la salud. Este material ha sido desarrollado únicamente con fines educativos e informativos y no tiene la intención de sustituir el juicio clínico de los profesionales de la salud. Las opiniones ydeclaraciones presentadas en este contenido son responsabilidad exclusiva de los ponentes y no reflejan necesariamente la postura institucional de ScienceLink ni de terceros mencionados. La información presentada se basa en el conocimiento y la experiencia profesional de los ponentes. La veracidad, exactitud y actualidad científica de los datos son de su exclusiva responsabilidad. Así mismo garantizan que el contenido utilizado no infringederechos de autor de terceros y asumen toda responsabilidad por su uso. Se deberán de revisar las indicaciones aprobadas en el país con estricto apego almarco regulatorio aplicable para cada uno de los tratamientos y medicamentos comentados.

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Tracking Treatment Response: ctDNA Insights in MMR-p Colon Cancer

Project Oncology®

Play Episode Listen Later Feb 12, 2026 9:00

Host: Brian P. McDonough, MD, FAAFP Guest: Christopher T. Chen, MD What if a simple blood draw could reveal whether a patient is responding to treatment before surgery? That question is at the heart of a study presented at the 2025 ESMO Congress, which investigated neoadjuvant immune checkpoint blockade in mismatch-repair-proficient (MMR-p) colon cancer. In addition to confirming that combination immunotherapy prior to surgery is a safe and feasible approach, the study also found that circulating tumor DNA (ctDNA) levels correlated with both tumor burden and early treatment response. Joining Dr. Brian McDonough to unpack these insights is Dr. Christopher Chen, Assistant Professor in the Division of Oncology in the Department of Medicine at Stanford University School of Medicine.

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Tracking Treatment Response: ctDNA Insights in MMR-p Colon Cancer

Conference Coverage

Play Episode Listen Later Feb 12, 2026 9:00

Is Organ Preservation for GEJ and Gastric Cancers Ready for Primetime?

ASCO eLearning Weekly Podcasts

Play Episode Listen Later Feb 9, 2026 21:03

Dr. Pedro Barata and Dr. Ugwuji Maduekwe discuss the evolving treatment landscape in gastroesophageal junction and gastric cancers, including the emergence of organ preservation as a selective therapeutic goal, as well as strategies to mitigate disparities in care. Dr. Maduekwe is the senior author of the article, "Organ Preservation for Gastroesophageal Junction and Gastric Cancers: Ready for Primetime?" in the 2026 ASCO Educational Book. TRANSCRIPT Dr. Pedro Barata: Hello, and welcome to By the Book, a podcast series from ASCO that features compelling perspectives from authors and editors of the ASCO Educational Book. I'm Dr. Pedro Barata. I'm a medical oncologist at University Hospitals Seidman Cancer Center and an associate professor of medicine at Case Western Reserve University in Cleveland, Ohio. I'm also the deputy editor of the ASCO Educational Book. Gastric and gastroesophageal cancers are the fifth most common cancer worldwide and the fourth leading cause of cancer-related mortality. Over the last decade, the treatment landscape has evolved tremendously, and today, organ preservation is emerging as an attainable but still selective therapeutic goal. Today, I'm delighted to be speaking with Dr. Ugwuji Maduekwe, an associate professor of surgery and the director of regional therapies in the Division of Surgical Oncology at the Medical College of Wisconsin. Dr. Maduekwe is also the last author of a fantastic paper in the 2026 ASCO Educational Book titled "Organ Preservation for Gastroesophageal Junction and Gastric Cancers: Ready for Prime Time?" We explore these questions in our conversations today. Our full disclosures are available in the transcript of this episode as well. Welcome. Thank you for joining us today. Dr. Ugwuji Maduekwe: Thank you, Dr. Barata. I'm really, really glad to be here. Dr. Pedro Barata: There's been a lot of progress in the treatment of gastric and gastroesophageal cancers. But before we actually dive into some of the key take-home points from your paper, can you just walk us through how systemic therapy has emerged and actually allowed you to start thinking about a curative framework and really informing surgery decision-making? Dr. Ugwuji Maduekwe: Great, thank you. I'm really excited to be here and I love this topic because, I'm terrified to think of how long ago it was, but I remember in medical school, one of my formative experiences and why I got so interested in oncology was when the very first trials about imatinib were coming through, right? Looking at the effect, I remember so vividly having a lecture as a first-year or second-year medical student, and the professor saying, "This data about this particular kind of cancer is no longer accurate. They don't need bone marrow transplants anymore, they can just take a pill." And that just sounded insane. And we don't have that yet for GI malignancies. But part of what is the promise of precision oncology has always been to me that framework. That framework we have for people with CML who don't have a bone marrow transplant, they take a pill. For people with GIST. And so when we talk about gastric cancers and gastroesophageal cancers, I think the short answer is that systemic therapy has forced surgeons to rethink what "necessary" really means, right? We have the old age saying, "a chance to cut is a chance to cure." And when I started out, the conversation was simple. We diagnose the cancer, we take it out. Surgery's the default. But what's changed really over the last decade and really over the last five years is that systemic therapy has gotten good enough to do what is probably real curative work before we ever enter the operating room. So now when you see a patient whose tumor has essentially melted away on restaging, the question has to shift, right? It's no longer just, "Can I take this out?" It's "Has the biology already done the heavy lifting? Have we already given them systemic therapy, and can we prove it safely so that maybe we don't have to do what is a relatively morbid procedure?" And that shift is what has opened the door to organ preservation. Surgery doesn't disappear, but it becomes more discretionary. Necessary for the patients who need it, and within systems that can allow us to make sure that we're giving it to the right patients. Dr. Pedro Barata: Right, no, that makes total sense. And going back to the outcomes that you get with these systemic therapies, I mean, big efforts to find effective regimens or cocktails of therapies that allow us to go to what we call "complete response," right? Pathologic complete response, or clinical complete response, or even molecular complete response. We're having these conversations across different tumors, hematologic malignancies as well as solid tumors, right? I certainly have those conversations in the GU arena as well. So, when we think of pathologic CRs for GI malignancies, right? If I were to summarize the data, and please correct me if I'm wrong, because I'm not an expert in this area, the traditional perioperative chemo gives you pCRs, pathologic complete response, in the single digits. But then when you start getting smarter at identifying biologically distinct tumors such as microsatellite instability, for instance, now you start talking about pCRs over 50%. In other words, half of the patients' cancer goes away, it melts down by offering, in this case, immunotherapy as a backbone of that neoadjuvant. But first of all, this shift, right, from going from these traditional, "not smart" chemotherapy approaches to kind of biologically-driven approaches, and how important is pCR in the context of "Do I really need surgery afterwards?" Dr. Ugwuji Maduekwe: That's really the crux of the entire conversation, right? We can't proceed and we wouldn't be able to have the conversation about whether organ preservation is even plausible if we hadn't been seeing these rates of pathologic complete response. If there's no viable tumor left at resection, did surgery add something? Are we sure? The challenge before this was how frequently that happened. And then the next one is, as you've already raised, "Can we figure that out without operating?" In the traditional perioperative chemo era, pathologic complete response was relatively rare, like maybe one in twenty patients. When we go to more modern regimens like FLOT, it got closer to one in six. When you add immunotherapy in recent trials like MATTERHORN, it's nearly triple that rate. And it's worth noting here, I'm a health services-health disparities researcher, so we'll just pause here and note that those all sound great, but these landmark trials have significant representation gaps that limit and should inform how confidently we generalize these findings. But back to what you just said, right, the real inflection point is MSI-high disease where, with neoadjuvant dual-checkpoint blockade, trials like NEONIPIGAS and INFINITY show pCR rates that are approaching 50% to 60%. That's not incremental progress, that's a whole new different biological reality. What does that mean? If we're saying that 50% to 60% of the people we take to the OR at the time of surgery will end up having no viable tumor, man, did we need to do a really big surgery? But the problem right now is the gold standard, I think we would mostly agree, the gold standard is pathologic complete response, and we only know that after surgery. I currently tell my patients, right, because I don't want them to be like, "Wait, we did this whole thing." I'm like, "We're going to do this surgery, and my hope is that we're going to do the surgery and there will be no cancer left in your stomach after we take out your stomach." And they're like, "But we took out my stomach and you're saying it's a good thing that there's no cancer." And yes, right now that is true because it's a measure of the efficacy of their systemic therapy. It's a measure of the biology of the disease. But should we be acting on this non-operatively? To do that, we have to find a surrogate. And the surrogate that we have to figure out is complete clinical response. And that's where we have issues with the stomach. In esophageal cancer, the preSANO protocol, which we'll talk about a little bit, validated a structured clinical response evaluation. People got really high-quality endoscopies with bite-on biopsies. They got endoscopic ultrasounds. They got fine-needle aspirations and PET-CT, and adding all of those things together, the miss rate for substantial residual disease was about 10% to 15%. That's a number we can work with. In the stomach, it's a lot more difficult anatomically just given the shape of people's stomachs. There's fibrosis, there's ulceration. A fair number of stomach and GEJ cancers have diffuse histology which makes it difficult to localize and they also have submucosal spread. Those all conceal residual disease. I had a recent case where I scoped the patient during the case, and this person had had a 4 cm ulcer prior to surgery, and I scoped and there was nothing visible. And I was elated. And on the final pathology they had a 7 cm tumor still in place. It was just all submucosal. That's the problem. I'm not a gastroenterologist, but I would have said this was a great clinical response, but because it's gastric, there was a fair amount of submucosal disease that was still there. And our imaging loses accuracy after treatment. So the gap between what looks clean clinically and what's actually there pathologically remains very wide. So I think that's why we're trying to figure it out and make it cleaner. And outside of biomarker-selected settings like MSI-high disease, in general, I'm going to skip to the end and our upshot for the paper, which is that organ preservation, I would say for gastric cancer particularly, should remain investigational. I think we're at the point where the biology is increasingly favorable, but our means of measurement is not there yet. Dr. Pedro Barata: Gotcha. So, this is a perfect segue because you did mention the SANO, just to spell it out, "Surgery As Needed for Oesophageal" trial, so SANO, perfect, I love the abbreviation. It's really catchy. It's fantastic, it's actually a well-put-together perspective effort or program applying to patients. And can you tell us how was that put together and how does that work out for patients? Dr. Ugwuji Maduekwe: Yeah, I think for those of us in the GI space, we have SANO and then we also have the OPRA for rectum. SANO for the upper GI is what takes organ preservation from theory to something that's clinically credible. The trial asked a very simple question. If a patient with a GEJ adenocarcinoma or esophageal adenocarcinoma achieved what was felt to be a clinical complete response after chemoradiation, would they actually benefit from immediate surgery? And the question was, "Can you safely observe?" And the answer was 'yes'. You could safely observe, but only if you do it right. And what does that mean? At two years, survival with active surveillance was not inferior to those who received an immediate esophagectomy. And those patients had a better early quality of life. Makes sense, right? Your quality of life with an esophagectomy versus not is going to be different. That matters a lot when you consider what the long-term metabolic and functional consequences of an esophagectomy are. The weight loss, nutritional deficiencies that can persist for years. But SANO worked because it was very, very disciplined and not permissive. You mentioned rigor. They were very elegant in their approach and there was a fair amount of rigor. So there were two main principles. The first was that surveillance was front-loaded and intentional. So they had endoscopies with biopsies and imaging every three to four months in the first year and then they progressively spaced it out with explicit criteria for what constituted failure. And then salvage surgery was pre-planned. So, the return-to-surgery pathway was already rehearsed ahead of time. If disease reappeared, take the patient to the OR within weeks. Not sit, figure out what that means, think about it a little bit and debate next steps. They were very clear about what the plan was going to be. So they've given us this blueprint for, like, watching people safely. I think what's remarkable is that if you don't do that, if you don't have that infrastructure, then organ preservation isn't really careful. It's really hopeful. And that's what I really liked about the SANO trial, aside from, I agree, the name is pretty cool. Dr. Pedro Barata: Yeah, no, that's a fantastic point. And that description is spot on. I am thinking as we go through this, where can this be adopted, right? Because, not surprisingly, patients are telling you they're doing a lot better, right, when you don't get the esophagus out or the stomach out. I mean, that makes total sense. So the question is, you know, how do you see those issues related to the logistics, right? Getting the multi-disciplinary team, getting the different assessments of CR. I guess PETs, a lot of people are getting access to imaging these days. How close do you think this is, this kind of program, to be implemented? And maybe I would assume it might need to be validated in different settings, right, including the community. How close or how far do you think you see that being applied out there versus continuing to be a niche program, watch and wait program, in dedicated academic centers? Dr. Ugwuji Maduekwe: I love this question. So I said at the top of this, I'm a health equity/health disparities researcher, and this is where I worry the most. I love the science of this. I'm really excited about the science. I'm very optimistic. I don't think this is a question of "if," I think it's a question of "when." We are going to get to a point where these conversations will be very, very reasonable and will be options. One of the things I worry about is: who is it going to be an option for? Organ preservation is not just a treatment choice, and I think what you're pointing out very rightly is it's a systems-level intervention. Look at what we just said for SANO. Someone needs to be able to do advanced endoscopy, get the patients back. We have to have the time and space to come back every three to four months. We have to do molecular testing. There needs to be multi-disciplinary review. There needs to be intensive surveillance, and you need to have rapid access to salvage surgery. Where is that infrastructure? In this country, it's mostly in academic centers. I think about the panel we had at ASCO GI, which was fantastic. And as we were having the conversation, you know, we set it up as a debate. So folks were debating either pro-surveillance or pro-surgery. But both groups, both people, were presenting outcomes based on their centers. And it was folks who were fantastic. Dr. Molena, for example, from Memorial Sloan Kettering was talking about their outcomes in esophagectomies [during our session at GI26], but they do hundreds of these cases there per year. What's the reality in this country? 70% to 80% to 90%, depending on which data you look at, of the gastrectomies in the United States occur at low-volume hospitals. Most of the patients at those hospitals are disproportionately uninsured or on government insurance, have lower income and from racial and ethnic minority groups. So if we diffuse organ preservations without the system to support it, we're going to create a two-tiered system of care where whether you have the ability to preserve your organs, to preserve bodily integrity, depends on where you live and where you're treated. The other piece of this is the biomarker testing gap. One of the things that, as you pointed out at the beginning, that's really exciting is for MSI-high tumors. Those are the patients that are most likely to benefit from immunotherapy-based organ preservation. But here's the problem. If the patient isn't tested at time of initial diagnosis before they ever see me as a surgeon, the door to organ preservation is closed before it's ever open. And testing access remains very inconsistent across academic networks. And then there's the financial toxicity piece where, for gastrectomy, pancreatectomy, I do peritoneal malignancies, more than half of those patients experience significant financial toxicity related to their cancer treatment. We're now proposing adding at least two years, that's the preliminary information, right? It's probably going to be longer. At least a couple of years of surveillance visits, repeated endoscopies, immunotherapy costs. How are we going to support patients through that? We're going to have to think about setting up navigation support, geographic solutions, what financial counseling looks like. My patient for clinic yesterday was driving to see me, and they were talking about how they were sliding because it was snowing. And they were sliding for the entire three-hour drive down here. Are we going to tell people like that that they need to drive down to, right, I work at a high-volume center, they're going to need to come here every three months, come rain or snow, to get scoped as opposed to the one-time having a surgery and not needing to have the scopes as frequently? My concern, like I said, I'm an optimist, I think it is going to work. I think we're going to figure out how to make it work. I'm worried about whether when we deploy it, we widen the already existing disparities. Dr. Pedro Barata: Gotcha, and that's a fantastic summary. And as I'm thinking also of what we've been talking in other solid tumors, which one of the following do you think is going to evolve first? So we are starting to use more MRD-based assays, which are based on blood test, whether it's a tumor-informed ctDNA or non-informed. We are also trying to get around or trying to get more information response to systemic therapies out of RNA-seq through gene expression signatures, or development of novel therapeutics which also can help you there. Which one of these areas you think you're going to help this SANO-like approach move forward, or you actually think it's actually all of the above, which makes it even more complicated perhaps? Dr. Ugwuji Maduekwe: I think it's going to be all of the above for a couple of reasons. I would say if I had to pick just one right now, I think ctDNA is probably the most promising and potentially the missing piece that can help us close the gap between clinical and pathologic response. If you achieve clinical complete response and your ctDNA is negative, so you have clinical and molecular evidence of clearance, maybe that's a low-risk patient for surveillance. If you have clinical complete response but your ctDNA remains positive, I would say you have occult molecular disease and we probably need intensified therapy, closer monitoring, not observation. I think the INFINITY trial is already incorporating ctDNA into its algorithm, so we'll know. I don't think we're at the point where it alone can drive surgical decisions. I think it's going to be a good complement to clinical response evaluation, not a replacement. The issue of where I think it's probably going to be multi-dimensional is the evidence base: who are we testing? Like, what is the diversity, what is the ancestral diversity of these databases that we're using for all of these tests? How do we know that ctDNA levels and RNA-seq expression arrays are the same across different ancestral groups, across different disease types? So I think it's probably going to be an amalgam and we're going to have to figure out some sort of algorithm to help us define it based on the patient characteristics. Like, I think it's probably different, some of this stuff is going to be a little bit different depending on where in the stomach the cancer is. And it's going to be a little bit more difficult to figure out if you have a complete clinical response in the antrum and closer to the pylorus, for example. That might be a little bit more difficult. So maybe the threshold for defining what a clinical complete response needs to be is higher because the therapeutic approach there is not quite as onerous as for something at the GE-junction. Dr. Pedro Barata: Wonderful. And I'm sure AI, whether it's digitization of the pathology from the biopsies and putting all this together, probably might play a role as well in the future. Dr. Maduekwe, it's been fantastic. Thank you so much for sharing your insights with us and also congrats again for the really well-done review published. For our listeners, thank you for staying with us. Thank you for your time. We will post a link to this fantastic article we discussed today in the transcript of this episode. And of course, please join us again next month on the By the Book Podcast for more insights on key advances and innovations that are shaping modern oncology. Thank you, everyone. Dr. Ugwuji Maduekwe: Thank you. Thank you for having me. Watch the ASCO GI26 session: Organ Preservation for Gastroesophageal and Gastric Cancers: Ready for Primetime? 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 today's speakers:         Dr. Pedro Barata  @PBarataMD   Dr. Ugwuji Maduekwe @umaduekwemd Follow ASCO on social media:         @ASCO on X (formerly Twitter)         ASCO on Bluesky        ASCO on Facebook         ASCO on LinkedIn         Disclosures:      Dr. Pedro Barata:  Stock and Other Ownership Interests: Luminate Medical  Honoraria: UroToday  Consulting or Advisory Role: Bayer, BMS, Pfizer, EMD Serono, Eisai, Caris Life Sciences, AstraZeneca, Exelixis, AVEO, Merck, Ipson, Astellas Medivation, Novartis, Dendreon  Speakers' Bureau: AstraZeneca, Merck, Caris Life Sciences, Bayer, Pfizer/Astellas  Research Funding (Inst.): Exelixis, Blue Earth, AVEO, Pfizer, Merck   Dr. Ugwuji Maduekwe: Leadership: Medica Health Research Funding: Cigna

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Therapy for Stage IV NSCLC With Driver Alterations: ASCO Living Guideline Update 2026.3.0 Part 2

ASCO Guidelines Podcast Series

Play Episode Listen Later Feb 3, 2026 19:36

Dr. Sonam Puri discusses the full update to the living guideline on stage IV NSCLC with driver alterations. She shares a new overarching recommendation on biomarking testing and explains the new recommendations and the supporting evidence for first-line and subsequent therapies for patients with stage IV NSCLC and driver alterations including EGFR, MET, ROS1, and HER2. Dr. Puri talks about the importance of this guideline and rapidly evolving areas of research that will impact future updates. Read the full living guideline update "Therapy for Stage IV Non-Small Cell Lung Cancer With Driver Alterations: ASCO Living Guideline, Version 2026.3.0" at www.asco.org/thoracic-cancer-guidelines TRANSCRIPT This guideline, clinical tools and resources are available at www.asco.org/thoracic-cancer-guidelines. Read the full text of the guideline and review authors' disclosures of potential conflicts of interest in the Journal of Clinical Oncology, https://ascopubs.org/doi/10.1200/JCO-25-02822 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'm interviewing Dr. Sonam Puri from Moffitt Cancer Center, co-chair on "Therapy for Stage IV Non-Small Cell Lung Cancer with Driver Alterations: ASCO Living Guideline, Version 2026.3.0." It's great to have you here today, Dr. Puri. Dr. Sonam Puri: Thanks, Brittany. Brittany Harvey: And then just before we discuss this guideline, I'd like to note that ASCO takes great care in the development of 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 guideline panel, including Dr. Puri, who has joined us here today, are available online with the publication of the guideline in the Journal of Clinical Oncology, which is linked in the show notes. So then, to dive into the content that we're here today to talk about, Dr. Puri, this living clinical practice guideline for systemic therapy for patients with stage IV non-small cell lung cancer with driver alterations is updated on an ongoing basis. So, what data prompted this latest update to the recommendations? Dr. Sonam Puri: So Brittany, non-small cell lung cancer is one of the fastest-moving areas in oncology right now, particularly when it comes to targeted therapy for driver alterations. New data are emerging continuously from clinical trials, regulatory approvals, real-world experience, which is exactly why these are living guidelines. The goal is to rapidly integrate important advances as they happen, rather than waiting for years for a traditional update. Since the last full update of the ASCO Stage IV Non-small Cell Lung Cancer Guideline with Driver Alterations published in 2024, there have been seven new regulatory approvals and changes in first-line therapy for some driver alterations. [This version] of the "Stage IV Non-small Cell Lung Cancer Guidelines with Driver Alterations" represents a full update, which means that the panel reviewed and refreshed every applicable section of the guideline to reflect the most current evidence across therapies including sequencing and clinical decision-making. This is to ensure that clinicians have up-to-date practical guidelines that keep pace with how quickly the field is evolving. Brittany Harvey: Absolutely. As you mentioned, this is a very fast-moving space and this full update helps condense all of those versions that the panel reviewed before into one document, along with additional approvals and new trials that you reviewed during this time period. So then, the first aspect of the guideline is there's a new overarching recommendation on biomarker testing. Could you speak a little bit to that updated recommendation? Dr. Sonam Puri: Yeah, definitely. So the panel has discussed and provided recommendations on comprehensive biomarker testing and its importance in all patients diagnosed with non-small cell lung cancer. Ideally, biomarker testing should include a broad-based next-generation sequencing panel, rather than single-gene tests, along with immunohistochemistry for important markers such as PD-L1, HER2, and MET. These results really drive treatment decisions, both in frontline settings for all patients diagnosed with non-small cell lung cancer and in subsequent line settings for patients with non-small cell lung cancer harboring certain targetable alterations. Specifically in the frontline setting, it helps determine whether a patient should receive upfront targeted therapy or immunotherapy-based approach. We now have strong data that shows that complete molecular profiling results before starting first-line therapy is associated with better overall survival and actually more cost-effective care. Using both tissue and blood-based testing can improve likelihood of getting actionable results in a timely way, and we've also provided guidance on platforms that include RNA sequencing, which are specifically helpful for identifying gene fusions that might be otherwise missed with other platforms. On the flip side, outside of a truly resource-limited setting, single-gene PCR testing really should not be routine anymore. This is what the panel recommends. It's less sensitive and inefficient and increases the risk of missing important actionable alterations. Brittany Harvey: Understood. I appreciate you reviewing that recommendation. It really helps identify critical individual factors to match the best treatment option to each individual patient. So then, following that recommendation, what are the updated recommendations on first-line therapy for patients with stage IV non-small cell lung cancer with a driver alteration? Dr. Sonam Puri: Since the last full update in 2024, there have been four additional interim updates which were published across 2024 and 2025. Compared to the last version, there have been several updates which have been included in this full update. One of the most important shifts has been in first-line treatment of patients with non-small cell lung cancer harboring the classical, or what we call as typical, EGFR mutation. The current version of the recommendation is based on the updated survival data from the phase III FLAURA2 and MARIPOSA studies, based on which the panel recommended to offer either osimertinib combined with platinum-pemetrexed chemotherapy or the combination of amivantamab plus lazertinib in the first-line treatment of classical EGFR mutations. And these recommendations, as I mentioned, are grounded in the results of the FLAURA2 and MARIPOSA trials, both of which demonstrated improvement in progression-free survival and overall survival compared to osimertinib alone in patients with common EGFR mutations. That being said, the panel actually spent significant time discussing the toxicities associated with these treatments as well. These combination approaches come with higher toxicity, longer infusion time, increased treatment frequency. So while combination therapy is now recommended as preferred, the panel has recommended that osimertinib monotherapy remains a reasonable option, particularly for patients with poor performance status and for those who are not interested in treatment intensification after knowing the risks and benefits. Brittany Harvey: Absolutely. It's important to consider both those benefits and risks of those adverse events that you mentioned to match appropriately individualized patient care. So then, beyond those recommendations for first-line therapy, what is new for second-line and subsequent therapies? Dr. Sonam Puri: So this is a section that saw several major updates, particularly again in the EGFR space. The first was an update on treatment after progression on osimertinib for patients with classical EGFR mutation. Here the panel recommends the combination of amivantamab plus chemotherapy, and this recommendation was based on the phase III MARIPOSA-2 trial, which compared amivantamab plus chemotherapy with chemotherapy alone with progression-free survival as the primary endpoint. The study met its primary endpoint, showing an improvement in median PFS with the combination of amivantamab plus chemotherapy compared to chemotherapy alone. And as expected, the combination was associated with higher toxicity. So, although the panel recommends this regimen, the panel emphasizes that patients should be counseled on the side effects which may be moderate to severe with the combination therapy approach. In addition, a new recommendation was added for patients who are not candidates for amivantamab plus chemotherapy. In those cases, platinum-based chemotherapy with or without continuation of osimertinib may be offered, and the option of continuing osimertinib with chemotherapy was recommended and supported by data from a recently presented phase III COMPEL study, which randomized 98 patients with EGFR exon 19 deletion or L858R-mutated advanced non-small cell lung cancer who had experienced no CNS progression on first-line osimertinib, and these patients were randomized to receive platinum-pemetrexed chemotherapy with osimertinib or placebo. Although this study was small, it demonstrated a PFS benefit with continuation of osimertinib with chemotherapy, and this approach may be appropriate for patients without CNS progression who prefer or require alternatives to more intensive treatment strategies. Next was an update on options for patients with EGFR-mutated lung cancer after progression on osimertinib and platinum-based chemotherapy. Here the panel recommended that for patients whose disease has progressed after both osimertinib and platinum-based chemotherapy, a new drug known as datopotamab deruxtecan can be offered as a treatment option. And this treatment recommendation was based on evaluation of pooled data from the TROPION-Lung01 and TROPION-Lung05 study, in which in the pooled analysis about 114 patients with EGFR-mutant non-small cell lung cancer were treated with Dato-DXd, 57% of whom had received three or more prior lines of treatment, and what was observed was an overall response rate of 45% with a median duration of response of 6.5 months. So definitely promising results. Next, we focused on updates to subsequent therapy options for patients with another type of EGFR mutation known as EGFR exon 20 insertion mutations. In this section, the panel added sunvozertinib as a subsequent line option after progression on platinum-based chemotherapy with or without amivantamab. Sunvozertinib is an oral, irreversible, and selective EGFR tyrosine kinase inhibitor with efficacy demonstrated in the phase II WU-KONG6 study conducted in Chinese patient population. In this study, amongst 104 patients with platinum-pretreated EGFR exon 20 mutated non-small cell lung cancer, the observed response rate was 61%. Staying in the EGFR space, the panel added a recommendation for patients with acquired MET amplification following progression on EGFR TKI therapy. In these situations, the panel recommended that treatment may be offered with osimertinib in combination with either tepotinib or savolitinib. As our listeners may know, MET amplification occurs in approximately 10% to 15% of patients with EGFR-mutated non-small cell lung cancer when they progress on third-generation EGFR TKIs, and detection of MET amplification is done with various methods, such as tissue-based methods like FISH, NGS, and IHC, as well as ctDNA-based NGS with variable cut-offs. Over the last few years, several studies have informed this recommendation. I'm going to be discussing some of them. In the phase II ORCHARD trial, 32 patients with MET-amplified non-small cell lung cancer after progression on first-line osimertinib were evaluated, where the combination of osimertinib plus savolitinib achieved an overall response rate of 47% with a duration of response of 14.5 months. More recently, the phase II SAVANNAH trial reported outcomes in 80 patients with MET-amplified tumors after progression on osimertinib, and in this patient population, the combination of savolitinib and osimertinib achieved an overall response rate of 56% with a median PFS of 7.4 months. And lastly, the phase II single-arm INSIGHT 2 trial assessed the efficacy of osimertinib plus tepotinib in patients with advanced EGFR-mutant non-small cell lung cancer who had disease progression following first-line osimertinib therapy. And in this study, in a cohort of 98 patients with MET-amplified tumors confirmed by central testing, the overall response rate with the combination was 50% with a duration of response of 8.5 months. So definitely informing this guideline recommendation. Next, we had an update on recommendation in patients with ROS1-rearranged non-small cell lung cancer. For patients with ROS1-rearranged non-small cell lung cancer, the panel recommended specifically for patients who progressed after first-line ROS1 TKIs, the addition of taletrectinib as a new option alongside repotrectinib. And this recommendation was based on analysis of the results of the TRUST-I and TRUST-II studies, which showed that amongst 113 tyrosine kinase inhibitor-pretreated patients, taletrectinib achieved a confirmed overall response rate of 55.8% with a median duration of response of 16.6 months and a median PFS of 9.7 months, a very promising agent. Finally, for patients with HER2 exon 20 mutated non-small cell lung cancer, the panel added two new oral HER2 tyrosine kinase inhibitors, zongertinib and sevabertinib, as options in addition to T-DXd and after exposure to T-DXd. These recommendations are based on early phase data from two trials: the phase I Beamion LUNG-01 study, which evaluated zongertinib, and the phase I/II SOHO-01 study that evaluated sevabertinib. In this study, zongertinib demonstrated an overall response rate of 71% in previously treated patients, with an overall response rate of 48% amongst patients who had received prior HER2-directed ADCs including T-DXd. Sevabertinib in its early phase study showed an overall response rate of 64% in previously treated but HER2 therapy-naive patients, and an overall response rate of 38% in patients previously exposed to HER2-directed therapy. The panel believes that both agents had manageable toxicity profile and represent meaningful new options for this patient population. Brittany Harvey: Certainly, it's an active space of research, and I appreciate you reviewing the evidence underpinning all of these recommendations for our listeners. So, it's great to have these new options for patients in the later-line settings. And given all of these updates in both the first and the later-line settings, what should clinicians know as they implement this latest living guideline update, and how do these changes impact patients with non-small cell lung cancer? Dr. Sonam Puri: Some great questions, Brittany. I think for clinicians when implementing this update, I think about two practical steps. First is reiterating the importance of comprehensive biomarker testing. That is the only way to identify key drivers and resistance mechanisms that we are now targeting. And second, picking a first-line strategy that balances efficacy and toxicity and patient preference for your specific patient. I think informed decision-making, shared decision-making is more important than any time right now. It has always been important, but definitely very important now. For patients, this guideline brings recommendations on more personalized treatment options for both first-line and post-progression settings, which potentially means better outcomes. But it is also very important for our patients to continue to have informed conversations about side effects, time commitment, and what matters most to them with their providers. The panel in this version of the guideline specifically acknowledges the real-world barriers that prevent patients from receiving guideline-concordant therapy, including challenges with access to comprehensive molecular testing and treatment availability, and the panel emphasizes on the importance of shared decision-making, and we provide practical discussion points to help clinicians navigate these conversations with the patient. In addition, the panel has also addressed common real-world clinical complexities, such as treating elderly or frail patients, managing multiple chronic conditions, considerations around pregnancy and fertility, and certain disease scenarios such as oligoprogression or oligometastatic disease. And where available, the guideline summarizes this existing data to support informed individual decision-making in these complex situations. Brittany Harvey: Shared decision-making is really paramount, especially with all of the options and weighing the risks and benefits and considering the individual circumstances of each patient that comes before a clinician. We've talked a lot about all of the new studies that the panel has reviewed, but what other studies or areas of research is the panel examining for future updates to this living guideline as it continues to be updated on an ongoing basis? Dr. Sonam Puri: Yes, definitely, so much to look forward to, right? Looking ahead, the panel is closely monitoring several rapidly evolving areas that are likely to shape future updates of the guideline. This includes emerging data from ongoing later-phase studies, particularly the studies that are evaluating these new targeted agents moving to earlier lines of therapy, alongside studies evaluating additional combination strategies or more refined approaches to treatment sequencing. We're also closely watching advances in biomarker testing, the evolving understanding of resistance mechanisms, development of new targets, and promising therapeutic agents. I think ultimately the living guideline exists to help clinicians and patients navigate this rapidly evolving field, and we would like to ensure that scientific advances are rapidly translated into better, more personalized patient care. Brittany Harvey: Definitely. We'll look forward to those updates from those ongoing trials and future areas of research that you mentioned to provide better options for patients with non-small cell lung cancer and a driver alteration. So I want to thank you so much for your work to rapidly and continuously update this guideline, and thank you for your time today, Dr. Puri. Dr. Sonam Puri: Thanks so much. Thanks so much for the opportunity. Brittany Harvey: And finally, thank you to all of our listeners for tuning in to the ASCO Guidelines podcast. To read the full guideline, go to www.asco.org/thoracic-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. There's also a companion episode with Dr. Reuss on the related living guideline on stage IV non-small cell lung cancer without driver alterations that listeners can find in their feeds as well. And if you've 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.

chinese therapy staying journal fish iv driver guidelines pcr rna apple app store google play store cns mariposa puri asco stage iv alterations her2 pfs egfr clinical oncology ngs nsclc adcs reuss moffitt cancer center pd l1 ihc jco ctdna ros1 egfr tkis t dxd l858r egfr tki asco guidelines

Ep. 287 Urothelial Carcinoma: Understanding CTDNA and Precision Medicine with Dr. Amanda Nizam and Dr. Brad McGregor

BackTable Urology

Play Episode Listen Later Jan 30, 2026 58:18

Is the era of cisplatin over, or are we simply becoming more precise about who benefits from it? As perioperative strategies in bladder cancer continue to evolve, emerging tools like circulating tumor DNA (ctDNA) are playing a bigger role in how clinicians assess recurrence risk and tailor treatment. In this episode of BackTable Tumor Board, host Alan Tan, medical oncologist at Vanderbilt-Ingram Cancer Center, is joined by bladder cancer experts Dr. Amanda Nizam and Dr. Brad McGregor to discuss recent advances in the diagnosis and treatment of urothelial carcinoma. --- SYNPOSIS The doctors examine the evolving management of muscle-invasive bladder cancer (MIBC), including the role of neoadjuvant and adjuvant therapies, the integration of immunotherapy, and the recent approval of enfortumab vedotin plus pembrolizumab. The discussion explores the rapidly changing perioperative landscape, the prognostic utility of ctDNA, and how biomarkers such as HER2 and FGFR are influencing treatment selection across disease states. They also address bladder preservation strategies, management of treatment-related toxicities, and the importance of multidisciplinary coordination. The episode concludes with a forward-looking discussion on emerging therapies and the potential to improve cure rates in bladder cancer. --- TIMESTAMPS 00:00 - Introduction01:44 - Overview of Bladder Cancer Treatment04:54 - Patient Staging and Treatment Goals10:12 - Bladder Preservation vs. Radical Cystectomy16:39 - Emerging Trials and Future Directions22:40 - ctDNA and Precision Medicine33:50 - Metastatic Disease and Biomarker Strategies42:16 - Managing Neuropathy in Metastatic Treatment48:44 - HER2 and FGFR in Bladder Cancer54:15 - Future Directions in Bladder Cancer Treatment --- RESOURCES EV-302/303 Trialhttps://newsroom.astellas.com/2023-12-15-PADCEV-R-enfortumab-vedotin-ejfv-with-KEYTRUDA-R-pembrolizumab-Approved-by-FDA-as-the-First-and-Only-ADC-Plus-PD-1-to-Treat-Advanced-Bladder-Cancer NIAGARA Regimenhttps://www.nejm.org/doi/full/10.1056/NEJMoa2408154 KEYNOTE-905 Studyhttps://www.annalsofoncology.org/article/S0923-7534(25)04894-X/fulltext

fda mcgregor approved precision medicine future directions her2 carcinoma nizam ctdna fgfr mibc

EMV Capital-backed Vortex Biotech targets clinical rollout with new Manchester facility

Proactive - Interviews for investors

Play Episode Listen Later Jan 29, 2026 4:59

Vortex Biotech managing director Paul Reeves talked with Proactive's Stephen Gunnion about the company's expansion into Manchester and the opening of its new advanced laboratory. Reeves described Vortex, an EMV Capital (AIM:EMVC, FRA:NTK1) porfolio company, as a precision oncology company enabling access to intact circulating tumour cells (CTCs) for clinicians, researchers and pharmaceutical companies. He said the Manchester site will significantly enhance the company's capabilities, particularly in clinical validation and commercial rollout. Reeves highlighted three main advantages of the new facility: increased capacity, proximity to research partners and hospitals, and access to a vibrant innovation ecosystem. He said, “We're surrounded by the partners that we need in terms of universities, hospitals... and researchers that we want to tap into.” Discussing market timing, Reeves pointed to growing momentum in liquid biopsy technology. He explained how Vortex's CTC platform complements the more established ctDNA approach, combining for deeper insight into cancer diagnosis, treatment resistance and patient monitoring. The company's roadmap includes multicenter validation studies across major cancer types and the launch of clinical trial services. Reeves noted that supplying high-purity CTCs will be a “key revenue-generating channel for Vortex” and that biomarker assay development is underway to support early detection and therapy selection. Vortex is building towards a broader commercial rollout in the UK and Europe, starting with research and clinical trial markets, then moving into regulated diagnostics. Visit Proactive's YouTube channel for more in-depth interviews. Don't forget to like this video, subscribe, and turn on notifications for future updates. #VortexBiotech #LiquidBiopsy #CancerDiagnostics #CirculatingTumorCells #OncologyInnovation #BiotechNews #PrecisionMedicine #ClinicalTrials #CancerResearch #ctDNA #ManchesterBiotech #EMVCapital

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S15 Ep37: Immuno-Oncology and Novel Cell Therapies Set Transformation in Motion for Gynecologic Oncology: With Ursula A. Matulonis, MD; and Rebecca Porter, MD, PhD

phd transformation massachusetts md treatments car motion harvard medical school cart therapies md phd dana farber cancer institute pd l1 tme gynecologic oncology immuno oncology ctdna

Play Episode Listen Later Jan 28, 2026 30:39

From Discovery to Delivery: Charting Progress in Gynecologic Oncology, hosted by Ursula A. Matulonis, MD, brings expert insights into the most recent breakthroughs, evolving standards, and emerging therapies across gynecologic cancers. Dr Matulonis is chief of the Division of Gynecologic Oncology and the Brock-Wilcon Family Chair at the Dana-Farber Cancer Institute, as well as a professor of medicine at Harvard Medical School, both in Boston, Massachusetts.In this episode, Dr Matulonis sat down with guest Rebecca Porter, MD, PhD. Dr Porter is a physician at Dana-Farber Cancer Institute and an assistant professor of medicine at Harvard Medical School.Drs Matulonis and Porter discussed the evolving role of immunotherapy in gynecologic cancer management, focusing on recent clinical breakthroughs and future directions. They noted that although high-grade serous ovarian cancer has historically been refractory to immunotherapy, the phase 3 KEYNOTE-B96 trial (NCT05116189) demonstrated an efficacy benefit with the addition of pembrolizumab to weekly paclitaxel for patients with platinum-resistant disease. In particular, improvements in overall survival were noted in the PD-L1–positive patient population. Dr Porter attributed this success to the metronomic weekly dosing of paclitaxel, which may increase neoantigen levels and favorably alter the tumor microenvironment (TME).Moreover, the experts highlighted how immunotherapy has already become the standard of care for patients with mismatch repair–deficient advanced or recurrent endometrial cancer. However, they explained that for the mismatch repair–proficient population, this benefit is less clear and appears most significant in patients with measurable disease or specific molecular subtypes. They added that although circulating tumor DNA (ctDNA) assay results correlate with treatment outcomes, ctDNA is currently not an actionable biomarker for determining treatment duration or selection.Lastly, Drs Matulonis and Porter reported that the field of gynecologic oncology is shifting toward combination therapies and novel platforms beyond standard checkpoint inhibitors. Treatment advances include bispecific and trispecific antibodies that engage multiple cell types or signals; as well as adoptive cellular therapies, such as CAR T-cell and CAR natural killer–cell therapies. Ultimately, the experts concluded that the goal of managing challenging-to-treat diseases like ovarian cancer is to use combinatorial approaches—incorporating vaccines, anti-angiogenic therapies, and chemotherapy—to overcome the immunosuppressive nature of the TME.

JCO PO Article Insights: Circulating Tumor DNA in Germ Cell Tumors

Oncology for the Inquisitive Mind

Play Episode Listen Later Jan 28, 2026 6:59

In this JCO Precision Oncology Article Insights episode, host Dr. Jiasen He summaries the article, "Longitudinal Evaluation of Circulating Tumor DNA as a Prognostic Biomarker to Detect Molecular Residual Disease in Germ Cell Tumors," by Hassoun et al. TRANSCRIPT Jiasen He: Hello, and welcome to the JCO Precision Oncology Article Insights. I'm your host, Jiasen He, and today, we'll be discussing the JCO Precision Oncology article, "Longitudinal Evaluation of Circulating Tumor DNA as a Prognostic Biomarker to Detect Molecular Residual Disease in Germ Cell Tumors," by Dr. Rebecca Hassoun and colleagues. Traditionally, treatment response for solid tumors has relied on imaging, which focuses on visible anatomic changes in the tumor. However, imaging does not always reflect molecular or cellular changes and cannot detect microscopic disease, which is clinically important and often linked to relapse. Liquid biopsy, on the other hand, is minimally invasive and can be used for cancer monitoring by analyzing circulating biomarkers in biofluids such as blood. One type of liquid biopsy is circulating tumor DNA, or ctDNA, which measures small fragments of DNA released by tumor cells into the bloodstream. ctDNA can allow precise monitoring of tumor-specific mutations and be a powerful tool for assessing treatment responses. ctDNA has already been applied in clinical settings for cancers such as non-small cell lung cancer and breast cancer, etcetera. However, there is still limited data on the use of ctDNA for germ cell tumors. Germ cell tumors are the most common malignancy affecting men aged 15 to 35 years. Accurate risk stratification and disease monitoring is key to risk-adapted therapy, maximizing the chance of cure while minimizing side effects. One unique tool we use currently for diagnosis, staging, and monitoring is serum tumor markers, such as AFP, beta-hCG, and LDH. However, these markers have limitations, including false elevation in certain clinical scenarios, and studies have shown that they can be normal in up to 40 percent of patients with germ cell tumor. This creates an unmet need for other sensitive and specific biomarkers to improve patient care. In this paper, the authors investigated the use of ctDNA in a cohort of patients with germ cell tumor at various disease time points. They compared ctDNA results with traditional serum tumor markers to evaluate whether ctDNA can predict relapse and survival outcomes. This multi-institutional retrospective study included patients with stage I, II, and III germ cell tumors, primarily testicular cancer, who had at least one ctDNA test result. ctDNA was evaluated longitudinally at different time points, including pre-orchiectomy, during the molecular residual disease, or MRD, window, defined as 1 to 12 weeks post-orchiectomy but before primary therapy, and during the surveillance window, defined as more than 12 weeks post-orchiectomy or follow retroperitoneal lymph node dissection or post-chemotherapy. ctDNA analysis was performed using a tumor-informed 16 multiplex PCR next-generation sequencing assay. A total of 324 plasma samples were analyzed from 74 patients in this cohort. The majority had stage I disease, around 40 percent, and nonseminomatous histology, around 70 percent. 15 patients were evaluated in the pre-orchiectomy window, and only one patient tested negative for ctDNA. This patient had stage I disease. The authors further assessed ctDNA positivity in both the MRD window and surveillance window, evaluating its association with event-free survival. They found that ctDNA outperformed serum tumor markers in both settings. ctDNA positivity was associated with significantly worse event-free survival compared with ctDNA-negative patients. Among the 14 patients with stage II to III disease who had ctDNA assessed in both the MRD window and surveillance window, nine patients consistently had a negative ctDNA or converted from positive to negative over time. In contrast, five patients demonstrated persistent ctDNA positivity, and all of these patients subsequently relapsed. Among the 38 patients who had both ctDNA and serum tumor marker tests during the MRD window, nine patients showed discordant biomarker results. Of these, 6 patients were ctDNA-negative but serum tumor marker-positive, and one of them experienced recurrence. Three patients were ctDNA-positive but serum tumor marker-negative, and one of these patients also recurred. During the surveillance window, 46 patients had both biomarkers available, and 10 showed discordant results. Three patients were ctDNA-negative but serum tumor marker-positive, and none of them recurred. In contrast, all seven patients who were ctDNA-positive but serum tumor marker-negative experienced recurrence. This intriguing data strongly support the potential role of ctDNA in patients with stage I, II, and III germ cell tumors. However, as the authors noted, the retrospective nature of the study presents limitations, as treatment approaches, imaging schedules, and the timing of testing were not standardized, and ctDNA testing varies among participating institutions. Larger prospective trials with standardized protocols and long-term follow-up will be essential to validate these findings and determine how ctDNA can be reliably integrated into clinical practice. Thank you for tuning in to JCO Precision Oncology Article Insights. Don't forget to subscribe and join us next time as we explore more groundbreaking research shaping the future of oncology. 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.

dna liquid accurate traditionally larger germ pcr tumors afp asco mrd circulating hcg ldh ctdna hassoun

186. ESMO Awards - Episode 6

Play Episode Listen Later Jan 25, 2026 21:53

ESMO Episode 6 is here! The longest award ceremony in the world continues. This episode covers colorectal cancer, a cancer stream that has relied heavily on the same three drugs for the past twenty-five years.We cover the golden pinnacle of real-world use cases for CTDNA, neoadjuvant immunotherapy in those with proficient MMR colorectal cancer, whether Zanzalimab helps in refractory colorectal cancer, and much more.Studies:BREAKWATERNEOADJUVANT IMMUNOTHERAPY (pMMR)STELLAR-303CHECKMATE 8HWFor 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 AlisiaBeats: https://pixabay.com/users/alisiabeats-39461785/Disclaimer: This podcast is for educational purposes only. If you are unwell, seek medical advice.Oncology for the Inquisitive Mind is recorded with the support of education grants from our foundation partners Pfizer, Gilead Pharmaceuticals and Merck Pharmaceuticals. MSD provided virtual participation with ESMO. Our partners have access to the episode at the same time you do and have no editorial control over the content. Hosted on Acast. See acast.com/privacy for more information.

awards acast pfizer oncology complease mmr msd esmo ctdna comart

Systemic Therapy in Patients With mCRPC: ASCO Living Guideline 2026.1

ASCO Guidelines Podcast Series

Play Episode Listen Later Jan 20, 2026 13:37

Dr. Mary-Ellen Taplin joins the podcast to discuss the latest changes to the living guideline on metastatic castration-resistant prostate cancer (mCRPC). She reviews new treatment options for patients treated with ADT alone, ADT and an ARPI, ADT and docetaxel, and ADT, an ARPI, and docetaxel whose disease has progressed to mCRPC and the evidence that underpins these changes. Dr. Taplin highlights the updated algorithms within the guideline and the living format which will provide rapid, up-to-date, evidence-based information for clinicians and patients. Read the full living guideline update, "Systemic Therapy in Patients With Metastatic Castration-Resistant Prostate Cancer: ASCO Living Guideline, Version 2026.1." at www.asco.org/genitourinary-cancer-guidelines TRANSCRIPT This guideline, clinical tools and resources are available at www.asco.org/genitourinary-cancer-guidelines. Read the full text of the guideline and review authors' disclosures of potential conflicts of interest in the Journal of Clinical Oncology, https://ascopubs.org/doi/10.1200/JCO-25-02693 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. Mary-Ellen Taplin from Dana-Farber Cancer Institute, lead author on "Systemic Therapy in Patients With Metastatic Castration-Resistant Prostate Cancer: ASCO Living Guideline, Version 2026.1." Thank you for being here today, Dr. Taplin. Dr. Mary-Ellen Taplin: Thank you, Brittany. It is a pleasure. Brittany Harvey: Before we discuss this guideline, I would like to note that ASCO takes great care in the development of 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 guideline panel, including Dr. Taplin who has joined us here today, are available online with the publication of the guideline in the Journal of Clinical Oncology, which is linked in the show notes. To dive into the content here and what we are here today to talk about, this living clinical practice guideline for systemic therapy for patients with metastatic castration-resistant prostate cancer is updated on an ongoing basis. Dr. Taplin, what prompted this latest update to the recommendations? Dr. Mary-Ellen Taplin: Thank you, Brittany. Several things prompted the latest update. There have been several phase III trials that have been practice-changing that have resulted in the last several years that needed to be added to the guidelines to inform clinicians of comprehensive treatment options. Brittany Harvey: Great, and it is great to have this updated guideline for readers. I would like to review the changes to the recommendations in this latest iteration across the patient populations that are outlined in the guideline. So, starting with: What are the updated recommendations for patients previously treated with androgen deprivation therapy alone whose disease has progressed to metastatic castration-resistant prostate cancer? Dr. Mary-Ellen Taplin: A nice feature of this guideline is that in addition to the tables, which provide detailed options, is at the end of the guidelines, our readers will find very clear algorithms that describe past treatment scenarios that patients could have had and then outline their treatment options. So it is very clear. Our clinicians will love these algorithms. And one of the changes for the disease state that you mentioned, which is the least treated castration-resistant state of prostate cancer which is previously treated with ADT alone, is that we recommend testing for mutations in the HRR, homologous recombination repair, genes. And the ones that are specifically known and applicable to prostate cancer are the BRCA genes. So there is clear recommendation of testing to remind us, as treating physicians, that now is the time, if it hasn't been done before, to institute both germline and somatic testing. And somatic testing, if it can be done on tissue, is preferable, but if not, the liquid biopsy approaches, the ctDNA approaches, have now advanced to the point that most patients with metastatic prostate cancer will be able to successfully have testing on the liquid biopsies. So that is number one, testing. And then the new treatment options include, if a patient does have an HRR gene alteration, and maybe about 20-25 percent of patients will be in that category, the combinations of an androgen pathway inhibitor and a PARP inhibitor are now treatment options. So for instance, talazoparib and enzalutamide; olaparib and abiraterone; or niraparib and abiraterone are some of the newer treatment options if the patient is HRR-positive. So, Brittany, in regard to patients treated with ADT alone, another new treatment option is the combination of radium-223 with enzalutamide. This is data based on the PEACE-3 trial which did show both an rPFS and OS benefit. For the patient who is HRR-negative and has previously not had an ARPI, just ADT alone, the combination of radium and enzalutamide is a new recommendation added to the algorithm. Brittany Harvey: Great. Thank you for reviewing those options for that patient population. And as you mentioned, I think those algorithms are very helpful as figures in the document. They are clear and can be used as at-a-glance tools for clinicians in their busy clinics. So then the next patient population that the guideline addresses: What is new for patients previously treated with androgen deprivation therapy and an androgen receptor pathway inhibitor whose disease has now progressed to metastatic castration-resistant prostate cancer? Dr. Mary-Ellen Taplin: Right, so there are several new treatment options. So one is lutetium-PSMA-617, the trade name of which is Pluvicto. So that has now been FDA approved to use after progression on an AR pathway inhibitor and prior to the use of docetaxel chemotherapy. Brittany Harvey: Thank you for reviewing that new option for patients treated with androgen deprivation therapy and an ARPI whose disease has progressed. So then moving into the next set of recommendations, what does the panel now recommend for patients previously treated with androgen deprivation therapy and docetaxel whose disease has progressed to metastatic castration-resistant prostate cancer? Dr. Mary-Ellen Taplin: The next group of patients is those treated with ADT and docetaxel but haven't had an AR pathway inhibitor. Treatment options, again the HRR testing is important. So all patients with metastatic castration-resistant prostate cancer should be considered for both germline and somatic testing. I will repeat that. And if they are BRCA mutation positive, then the option of talazoparib and enzalutamide; olaparib and abiraterone; and niraparib and abiraterone. So the AR pathway inhibitors plus the PARPs. There are three choices, so that can be somewhat complicated to think through, but most practitioners will get familiar with one of those combinations and be their go-to. So those are for BRCA-positive or HRR-positive. The talazoparib/enzalutamide trial also included non-BRCA HRR-positive gene mutations. And if they are HRR-negative, the option that we discussed above of radium and enzalutamide is new to the guideline. Brittany Harvey: Great. And then the last category of patients that is addressed in this update: What has changed for patients previously treated with androgen deprivation therapy, an androgen receptor pathway inhibitor, and docetaxel whose disease has now progressed to metastatic castration-resistant prostate cancer? Dr. Mary-Ellen Taplin: Well, in this space, patients who are heavily pretreated with ADT and ARPI, one or even two, and chemotherapy, generally with docetaxel, the recommendations are not new within the last year or two. And they include Pluvicto; a PARP inhibitor if HRR-positive and they have not had one; second-line chemotherapy such as cabazitaxel. And if they are a very rare group and they have been sequenced and they are MSI-high, then considering a PD-1 inhibitor such as pembrolizumab can be considered. I will note that this is a very small percentage of mCRPC patients, probably in the order of 5 percent or less. Brittany Harvey: Understood. And I appreciate you reviewing the recommendations across all of these patient populations. It sounds like some of the key points is that HRR testing is very important for this patient population, and that the algorithms and the tables in the manuscript provide the full list of options that clinicians and patients can refer to. Dr. Mary-Ellen Taplin: Those are the highlights. And I will note in the tables, all the sections have "Special Considerations" sections because patients never fall into the black and white of one category. And those practical information or special situations sections of each of the recommendations can also help clinicians think about the individual patient in front of them and how they might choose one therapy over another since there are generally choices in all of these treatment situations. Brittany Harvey: Absolutely. That information for the individualized patient-clinician decision-making is really key when, as you said, there is a list of options to choose from. So in your view, what should clinicians know as they implement this living guideline update, and how do these changes impact patients? Dr. Mary-Ellen Taplin: I am so excited about this living document. ASCO has invested to developing the software to, in real time and iteratively, assess the new data that is published in prostate cancer and other diseases. So now we don't have to wait many years for the next guideline to come out. The guidelines will be updated every six months in prostate cancer based on this automatic search of the literature and a standing panel of both academic and community experts in prostate cancer treatment. So we no longer have to wait. That is what makes this guideline stand out to other guidelines. And in the digestible format that we have made, a clinician can seek out the table and read some details, seek out practical information for the recommendations, or they can just go right to the clear figure algorithm and take a quick snapshot. "Yep, I need to do HR testing. Done. Oh, okay. HR-positive or negative, these are my options," and then think about the individual patient in front of them when there is more than one option. For instance, a patient with cardiovascular history, abiraterone might not be a good choice for them. Or a patient with neuropathy, docetaxel might not be a good choice for them. But, within this guideline, it really will be up to date and focused on the busy clinician and knowing what the options are for their patient. Brittany Harvey: Definitely. This new era of living guidelines is very exciting and can provide even more up-to-date, evidence-based recommendations to really support clinicians and patients with metastatic castration-resistant prostate cancer. So in that vein, finally, what is the panel examining, and what are you excited for for new data coming out for future updates to this living guideline? Dr. Mary-Ellen Taplin: The future updates will depend on the results of phase III clinical trials. You know, there are many phase III trials ongoing in advanced prostate cancer, some of which include targeted therapy, which has been long awaited in prostate cancer. So such compounds as antibody-drug conjugates that are targeting certain proteins in prostate cancer cells, such as STEAP1, KLK2, B7-H3. So I think we are entering a new era in prostate cancer where we will be targeting cells and delivering drugs and applying them to prostate cancer if the trials are positive. So I think with AI and a large investment in prostate cancer clinical drug development, I think the treatment options for our patients will be rapidly evolving in a manner not previously seen. So the guidelines need to follow along with these developments. Brittany Harvey: Definitely. It sounds like an exciting time for research in metastatic castration-resistant prostate cancer. And we will await the result of those phase III trials to inform this guideline and lead to future updates. So I want to thank you so much for your work to rapidly and continuously update these guidelines and for your time today, Dr. Taplin. Dr. Mary-Ellen Taplin: Oh, it was my pleasure. ASCO has been a leader in this area, and as a practicing clinician, we are thankful for the investment and guidance that ASCO gives us. Brittany Harvey: Absolutely. And finally, thank you to all of our listeners for tuning in to the ASCO Guidelines podcast. To read the full guideline, go to www.asco.org/genitourinary-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 have 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.

ai peace journal patients os treatments fda guidelines pd apple app store google play store asco brca msi adt dana farber cancer institute clinical oncology parp taplin jco ctdna psma systemic therapy hrr arpi asco guidelines

Colorectal Cancer — 5-Minute Journal Club Issue 2 with Dr Scott Kopetz: Current and Future Role of Tumor-Informed Circulating Tumor DNA Assays

current informed findings tumors cme colorectal cancer crc circulating journal club future role prognostic minute journal stage iii assays ctdna

Play Episode Listen Later Jan 12, 2026 23:31

Featuring an interview with Dr Scott Kopetz, including the following topics: Circulating tumor DNA (ctDNA)-guided adjuvant chemotherapy de-escalation in the treatment of Stage III colon cancer from the ctDNA-negative cohort of the DYNAMIC-III trial (0:00) Prognostic and predictive role of ctDNA in the management of Stage III colon cancer treated with celecoxib: Findings from the CALGB (Alliance)/SWOG 80702 trial (8:01) Phase III ALTAIR study comparing trifluridine/tipiracil to placebo for patients with molecular residual disease after curative resection of colorectal cancer (CRC); a methylation-based, tissue-free ctDNA test (12:51) ctDNA with locally advanced mismatch repair-deficient/microsatellite instability-high solid tumors; real-world evidence regarding ctDNA with resected CRC (17:31) CME information and select publications

Expanding Treatment Options for Breast Cancer: ADCs and Oral SERDs

ASCO Daily News

Play Episode Listen Later Jan 8, 2026 27:14

Dr. Monty Pal and Dr. Hope Rugo discuss advances in antibody-drug conjugates for various breast cancer types as well as treatment strategies in the new era of oral SERDs for HR-positive breast cancer. TRANSCRIPT Dr. Monty Pal: Hello, and welcome to the ASCO Daily News Podcast. I'm your host, Dr. Monty Pal. I'm a medical oncologist and vice chair of academic affairs here at the City of Hope Comprehensive Cancer Center, Los Angeles. Today, I'm thrilled to be joined by Dr. Hope Rugo, an internationally renowned breast medical oncologist and my colleague here at City of Hope, where she leads the Women's Cancers Program and serves as division chief of breast medical oncology. Dr. Rugo is going to share with us exciting advances in antibody-drug conjugates (ADCs) that are expanding treatment options in various breast cancer types. She'll also address some of the complex questions arising in the new era of oral SERDs (selective estrogen receptor degraders) that are revolutionizing treatment in the hormone receptor-positive breast cancer space. Our full disclosures are available in the transcript of this episode. Dr. Rugo, welcome, and thanks so much for being on the podcast today. Dr. Hope Rugo: Thank you. Pleasure to be here. Dr. Monty Pal: So, I'm going to switch to first names if you don't mind. The first topic is actually a really exciting one, Hope, and this is antibody-drug conjugates. I don't know if I've ever shared this with you, but I actually started my training at UCLA, I was a med student and resident there, and it was in Dennis Slamon's lab. I worked very closely with Mark Pegram and a handful of others. This is right around the time I think a lot of HER2-directed therapies were really evolving initially in the clinics. Now we've got antibody-drug conjugates. Our audience is well-familiar with the mechanism there but tell us about how ADCs have really started to reshape therapy for HER2-positive breast cancer. Dr. Hope Rugo: Yeah, I mean, this is a really great place to start. I mean, we have had such major advances in breast cancer just this year, I think really changing the paradigm of treating patients. But HER2-positive disease, we've been used to having sequenced success of new agents. And I think the two biggest areas where we've made advances in HER2-positive disease, which were remarkably advanced this year in 2025, have been in antibody-drug conjugates with trastuzumab deruxtecan and with new oral tyrosine kinase inhibitors (TKIs) that have less of a target on EGFR and more on HER2, so they have an overall more tolerable toxicity profile and therefore a potentially better efficacy in the clinic. At least that's what we're seeing with these new strategies that we couldn't really pursue in the past because of toxicities of the oral TKIs. So, although our topic is ADCs, I'm going to include the TKI because it's so important in our thinking about treating HER2-positive disease. In the metastatic setting, we've seen these remarkable improvements in progression-free and overall survival in the second-line setting with T-DXd, or trastuzumab deruxtecan, compared to T-DM1. And then sequencing ADCs with giving T-DXd after T-DM1 was better than an oral tyrosine kinase or a trastuzumab combination with standard chemotherapy. That was DESTINY-Breast03 and DESTINY-Breast02. So, then we've had other trials since then, and T-DXd has moved into the early-stage setting, which I'll talk about in just a moment. But the next big trial for T-DXd in HER2-positive disease was moving it to the first-line setting to supplant what has become an established treatment for now quite a long time: the so-called CLEOPATRA regimen, which used the combined antibodies trastuzumab, pertuzumab with a taxane as first-line therapy. And then we've proceeded on with maintenance with ongoing HP for patients with responding or stable disease. And we'd seen long-term data showing, you know, at 8 years there was a group of patients whose cancers had never progressed and continued improved overall survival. So, T-DXd was studied in DESTINY-Breast09, either alone or in combination with pertuzumab compared to THP. The patient population had received a little bit more prior treatment, but interestingly, not a lot compared to CLEOPATRA. And they designed the trial to be T-DXd continued until progression with or without pertuzumab versus THP, which would go for six cycles and then stop around six cycles, and then stop and continue HP. Patients who had hormone receptor-positive disease could use hormone therapy, and this is one of the issues with this dataset because, surprisingly in this dataset and one other I'll mention, very few patients took hormone therapy. And even in the maintenance trial, the HER2CLIMB-05, less than 50% took hormone therapy as maintenance. This is kind of shocking to me and highlights an area of really important education, that outcome is improved when you add endocrine therapy for hormone receptor-positive HER2-positive metastatic disease in the maintenance phase, and it's a really important part of treatment. But suffice it to say, you know, you're kind of studying continued chemo versus stopping chemo in maintenance. And T-DXd, as we all expected, in combination with pertuzumab was superior to THP in terms of progression-free survival, really remarkably improved. And you could stop the chemo with toxicity, but most people continued it with T-DXd. Again, not a lot of people got hormone therapy, which is an issue, and you stop the chemo in the control arm. So, this has brought up a lot of interest in trying to use T-DXd as an induction and then go to maintenance, much as we do with the CLEOPATRA regimen with hormone therapy. But it brings up another issue. So first, T-DXd is superior; it's a great treatment. Not everybody needs to have it because we don't know whether it's better to give T-DXd first or second with progression - that we need a little bit longer follow-up. But just earlier this week, interestingly, the third week of December, the U.S. FDA approved T-DXd in the DESTINY-Breast09 approach with pertuzumab. So as I mentioned earlier, there was a T-DXd-alone arm; that arm has not yet reported. So very interesting, we don't know if you need pertuzumab or not. So what about the maintenance? That's the other area where we've made a huge advance here. So, we all want to stop chemo and we want to stop T-DXd. You don't want somebody being nauseated for two years while they're on treatment, and also there's a small number of patients with mostly de novo metastatic HER2-positive disease who are cured of their disease. We'd like to expand that, and I think these new drugs give us the opportunity to improve the number of patients who might be cured from metastatic disease. So the first maintenance study we saw was adding palbociclib, the CDK4/6 inhibitor, to endocrine therapy and HP, essentially. There, we had a remarkable improvement in progression-free survival difference of 15.2 months: 29 to 44 months, really huge. At San Antonio this year, we saw data with this oral tyrosine kinase inhibitor tucatinib, already showed it was great in a triplet, but as maintenance in combination with HP, it showed also a remarkable improvement in progression-free survival. But the numbers were all shifted down. So in PATINA, the control arm was in the 24-month range; here it was the tucatinib-HP arm that was in the 25 months and 16 months for control. So there was a differential benefit in ER-negative and ER-positive disease. So I think we're all thinking that our ideal approach moving forward would be to give T-DXd to most patients, we see how they do, and treat to best response. And then, stop the T-DXd, start HP, trastuzumab, pertuzumab for ER-negative, with tucatinib for ER-positive with palbociclib. We also have early data that suggests that both approaches may reduce the development of brain metastases, an issue in HER2-positive disease, and delay time to progression of brain metastases as seen in HER2CLIMB-05 in very early data - small numbers, but still quite intriguing that you might delay progression of brain metastases with tucatinib that clearly has efficacy in the brain. So, I think that this is a hugely exciting advance for our patients, and these approaches are quickly moving into the early stage setting. T-DXd compared to standard chemo, essentially followed by THP, so a sequenced approach resulted in more pathologic complete responses than a standard THP-AC-type neoadjuvant therapy. T-DXd alone for eight cycles wasn't better, and that's interesting. We still need the sequenced non-cross-resistant chemo. But I think even more importantly, the data from DESTINY-Breast05 looking at T-DXd versus T-DM1 in patients with residual disease after neoadjuvant HER2-targeted therapy showed a remarkable improvement in invasive disease-free survival with T-DXd versus T-DM1, and quite early. It was a high-risk population, higher risk than the T-DM1 trial with KATHERINE, but earlier readout with a remarkable improvement in outcome. We expect to be FDA approved sometime in the first half of 2026. So then we'll get patients who've already had T-DXd who get metastatic disease. But my hope is that with T-DXd, maybe with tucatinib in the right group of patients or even sequenced in very high-risk disease, that we could cure many more patients with early-stage HER2-positive breast cancer and cure a subset, a greater subset of patients with de novo metastatic disease. Dr. Monty Pal: That's brilliant. And you tackled so many questions that I was going to follow up with there: brain metastases, etc. That was sort of looming in my mind. I mean, general thoughts on an ADC versus a TKI in the context of brain mets? Dr. Hope Rugo: Yeah, it's an interesting question because T-DXd has shown quite good efficacy in this setting. And tucatinib, of course, had a trial where they took patients with new brain mets, so a larger population than we've seen yet for the T-DXd trials, and saw that not only did they delay progression of brain metastases and result in shrinkage of existing untreated brain mets, but that patients who develop a new brain met, they could stay on the same assigned treatment. They got stereotactic radiation, and then the patients who were on tucatinib with trastuzumab and capecitabine had a further delay in progression of brain mets compared to those on the placebo arm, even after treatment of a new one that developed on treatment. So, I think it's hard. I think most of us for a lot of brain mets might start with the tucatinib approach, but T-DXd is also a very important treatment. You know, you're kind of trading off a diarrhea, some liver enzyme elevations with tucatinib versus nausea, which you really have to work on managing because it can be long-delayed nausea, and this risk of ILD, interstitial lung disease, that's about 12%, with most but not all trials showing a mortality rate from interstitial lung disease of just under 1 percent. In the early-stage setting, it was really interesting to see that with T-DXd getting four cycles in the neoadjuvant setting, a lot less ILD noted than the patients who got up to 14 cycles, as I think they got a median of 10 cycles in the post-surgical setting, there was a little bit more ILD. But I think we're going to be better and better at finding this earlier and preventing mortality by just stopping drug and treating earlier with steroids. Dr. Monty Pal: And this ILD issue, it always seems to resurface. There are drugs that I use in my kidney cancer clinic, everolimus, common to perhaps the breast cancer clinic as well, pembrolizumab, where I think the pattern of pneumonitis is quite different, right? What is your strategy for recognizing pneumonitis early in this context? Dr. Hope Rugo: Well, it is, and you know, having done the very early studies in everolimus where we gave it in the neoadjuvant setting and we're like, "Hmm, the patient came in with a cough. What's going on?" You know, we didn't know. And you have mouth sores, you know, we were learning about the drug as we were giving it. What we don't do with everolimus and CDK4/6 inhibitors, for example, is grade 1 changes like radiation pneumonitis, we don't stop, we don't treat it. We only treat for symptoms. But because of the mortality associated with T-DXd, albeit small, we stop drug for grade 1 imaging-only asymptomatic pneumonitis, and some of us treat with a half dose of steroids just to try and hasten recovery. We've actually now published or presented a couple of datasets from trials, a pooled analysis and a real-world analysis, that have looked at patients who were retreated after grade 1 pneumonitis or ILD and tolerated drug very well and none of them died of interstitial lung disease, which was really great to see because you can retreat safely and some of these patients stayed on for almost a year benefiting from treatment. So, there's a differential toxicity profile with these drugs and there are risk factors which clearly have identified those at higher risk: prior ILD, for example. A French group said smoking; other people haven't found that, maybe because they smoked more in France, I don't know. And being of Japanese descent is quite interesting. The studies just captured that you were treated in Japan, but I think it's probably being of Japanese descent with many drugs that increases your risk of ILD. And, you know, older patients, people who have hypoxia, those are the patients. So, how do we do this? With everolimus, we don't have specific monitoring. But for T-DXd we do; we do every nine weeks to start with and then every 12 weeks CT scans because most of the events occur relatively early. Somebody who's older and at higher risk now get the first CT at six weeks. Dr. Monty Pal: This is super helpful. And I have to tell you, a lot of these drugs are permeating the bladder cancer space which, you know, is ultimately going to be a component of my practice, so thank you for all this. We could probably stay on this topic of HER2-positive disease forever. I'm super interested in that space still. But let me shift gears a little bit and talk about triple-negative breast cancer and this evolving space of HR-positive, HER2-low breast cancer. I mean, tell us about ADCs in that very sort of other broad area. Dr. Hope Rugo: So triple-negative disease is the absolute hardest subset of disease that we have to treat because if you don't have a great response in the early stage setting, the median survival is very short, you know, under two years for the majority of TNBCs, with the exception of the small percentage of low proliferative disease subsets. The co-question is what do we do for these patients and how do we improve outcome? And sacituzumab govitecan has been one strategy in the later line setting that was shown to improve progression-free and overall survival, the Trop-2 ADC. We had recently three trials presented with the two ADCs, sacituzumab govitecan and the other Trop-2 ADC that's approved for HR-positive disease, datopotamab deruxtecan. And they were studied in the first-line setting. Two trials with SG, sacituzumab govitecan, those trials, one was PD-L1 positive, ASCENT-04. That showed that SG with a checkpoint inhibitor was superior, so pembrolizumab was superior to the standard KEYNOTE-355 type of treatment with either a taxane or gemcitabine and carboplatin with pembrolizumab for patients who have a combined positive score for PD-L1, 10 or greater. So, these are patients who are eligible for a checkpoint inhibitor, and SG resulted in an improved progression-free survival. The interesting thing about that dataset is that few patients had received adjuvant or neoadjuvant checkpoint inhibitor, which is fascinating because we give it to everybody now. But access is an issue and timing of the study enrollment was an issue. The other thing which I think we've all really applauded Gilead for is that there was automatic crossover. So, you could get from the company, to try and overcome some of the enormous disparities worldwide in access to these life-saving drugs, you could get SG through the company for free once you had blinded independent central review confirmation of disease progression. Now, a lot of the people who got the SG got it through their insurance, they didn't bill the company, but 80 percent of patients in the control arm received SG in the second-line setting. So that impacts your ability to look at overall survival, but it's an incredibly important component of these trials. So then at ESMO, we saw the data from SG and Dato-DXd in the first-line metastatic setting for patients who either had PD-L1-negative disease or weren't eligible for an immunotherapy. For the Dato study, TROPION-Breast02, that was 10 percent of the patients who had PD-L1-positive disease but didn't get a checkpoint inhibitor, and for the ASCENT-03 trial population it was only 1 percent. Importantly, the trials allowed patients who relapsed within a year of receiving their treatment with curative intent, and the Dato study, TB-02, allowed patients who relapsed while on treatment or within the first six months, and that was 15 percent of the 20 percent of early relapsers. The ASCENT trial, ASCENT-03, had 20 percent who relapsed between 6 and 12 months. The drugs were better than standard of care chemotherapy, the ADCs in both trials, which is very nice. Different toxicity profiles, different dosing intervals, but better than standard of care chemotherapy in the disease that's hardest for us to treat. And importantly, when you looked at the subset of early relapsers, those patients also did better with the ADC versus chemotherapy, which is incredibly important. And we were really interested in that 15 percent of patients who had early relapse. I actually think that six months thing was totally contrived, invented, you know, categorization and doesn't make any sense, and we should drop it. But the early relapsers were 15 percent of TB-02 and Dato was superior to standard of care chemo. We like survival, but the ASCENT trial again allowed the crossover to an approved ADC that improved survival and 80 percent of patients crossed over. In the Dato trial, they did not allow crossover, they didn't provide Dato, which isn't approved for TNBC but is for HR-positive disease, and they didn't allow, of course, pay for SG. So very few patients actually crossed over in their post-treatment data and in that study, they were able to show a survival benefit. So actually, I think in the U.S. where we can use approved drugs already before there's a fixed FDA approval, that people are already switching to use SG or Dato in the first-line setting for metastatic TNBC that's both PD-L1 positive for SG and PD-L1 negative for both drugs. And I think understanding the toxicity profiles of the two drugs is really important as well as the dosing interval to try and figure out which drug to use. Dr. Monty Pal: Brilliant. Brilliant. Well, I'm going to shift gears a little bit. ADCs are a topic, again, just like HER2-positive disease we could stay on forever. Dr. Hope Rugo: Huge. Yes. Dr. Monty Pal: But we're going to shift gears to another massive topic, which is oral SERDs. In broad strokes, right, this utilization of CDK4/6 inhibitors in the context of HR-positive breast cancer is obviously, you know, a paradigm that's been well established at this point. Where do we sequence in oral SERDs? Where do they fit into this paradigm? Dr. Hope Rugo: Ha! This is a rapidly changing area; we keep changing what we're saying every other minute. And I think that there are three areas of great interest. So one is patients who develop ESR1 mutations that allow constitutive signaling through the estrogen receptor, even when there's not estrogen around, and that is a really important mutation that is subclonal; it develops under the pressure of treatment in about 40 percent of patients. And it doesn't happen when you first walk in the door. And what we've seen is that oral SERDs as single agents are better than standard single-agent endocrine therapy in that setting. The problem that we've had with that approach is that we're now really interested in giving targeted agents with our endocrine therapies, not just in the first-line setting where CDK4/6 inhibitors are our standard of care with survival benefit for ribociclib and, you know, survival benefit in subsets with other CDK4/6 inhibitors, and abemaciclib with a numeric improvement. So we give it first line. The question is, what do you do in the second-line setting? Because of the recent data, we now believe that oral SERDs should be really given with a targeted agent. And some datasets which were recently presented, which I think have helped us with that, have been EMBER-3 and then the most recently evERA BC, or evERA Breast Cancer, that looked at the oral SERD giredestrant with everolimus compared to standard of care endocrine therapy with everolimus, where 100 percent of patients received prior CDK4/6 inhibitor and showed a marked improvement in progression-free survival, including in the subsets of patients with a short response, 6-12 months of prior response to CDK4/6 inhibitor and in those who had a PIK3CA pathway mutation. The thing is that the benefit looks like it's much bigger in the ESR1 mutant population, although response was better, PFS wasn't better in the wild type. So, we're still trying to figure that out. We also saw EMBER-3 with imlunestrant and abemaciclib as a second line. Not everybody had had a prior CDK4/6 inhibitor; they compared it to imlunestrant alone, but still the data was quite striking and seemed to cross the need for ESR1 mutations. And then lastly, we saw data from the single arms of the ELEVATE trial looking at elacestrant with everolimus and abemaciclib and showed these really marked progression-free survival data, even though single-arm, that crossed the mutation status. At least for the everolimus combination, abemaciclib analysis is still to come in the mutated subgroups. But really remarkable PFS, much longer. Single-agent fulvestrant after CDK4/6 inhibitor AI has a PFS in like the three-month range and in some studies, maybe close to five months. These are all at 10-plus months and really looking very good. And so those questions are, is it ESR1 mutation alone? Is it all comers? We'd like all comers, right? We believe in the combination approach and we're learning more about combinations with drugs like capivasertib and other drugs as we move forward. Everybody now wants to combine their targeted agent with an oral SERD because they're clearly here to stay with quite remarkable data. The other issue, so the second issue in the metastatic setting is, does it make a difference if we change to an oral SERD before radiographic imaging evidence of progression? And that was the question asked in the SERENA-6 trial where patients had serial monitoring for the presence of ESR1 mutations in ctDNA. And those who had them without progression on imaging could be randomized to switch to camizestrant with the same CDK4/6 inhibitor or stay on their same AI CDK4/6 inhibitor. And they showed a difference in progression-free survival that markedly favored camizestrant. But interestingly, the people who were on the standard control arm had an ESR1 mutation, we think AIs don't work, they stayed on for nine more months. The patients who were on the camizestrant stayed on for more than 16 months. And they presented some additional subset data which showed the same thing: follow-up PFS data, PFS2, all beneficial in SERENA-6 at the San Antonio [Breast Cancer Symposium]. So, we're still a little bit unclear about that. They did quality of life, and pain was markedly improved. They had a marked delayed time to progression of pain in the camizestrant arm. So this is all a work in progress, trying to understand who should we switch without progression to an oral SERD based on this development of this mutation that correlates with resistance. And, you know, it's interesting because the median time to having a mutation was 18 months and the median time to switch was almost 24 months. And then there were like more than 3,000 patients who hadn't gotten a mutation, hadn't switched, and were still okay. So screening everybody is the big question, and when you would start and who you would change on and how this affects outcome. Patients didn't have access to camizestrant in the control arm, something we can't fix but we have experimental drugs. We're actually planning a trial, I hope in collaboration with the French group Unicancer, and looking at this exact question. You know, if you switch and you change the CDK4/6 inhibitor and then you also allow crossover, what will we see? Dr. Monty Pal: We're coming right to the tail end of our time here, and I could probably go on for another couple of hours with you here. But if you could just give us maybe one or two big highlights from San Antonio, any thoughts to leave our audience with here based on this recent meeting? Dr. Hope Rugo: Yeah, I mean, I talked about a lot of those new data already from San Antonio, and the one that I'd really like to mention which I think was, you know, there were a lot of great presentations including personalized screening presented from the WISDOM trial by my colleague Laura Esserman, fascinating and really a big advance. But lidERA was the big highlight, I think, outside of the HER2CLIMB-05 which I talked about earlier in HER2-positive disease. And this study looked at giredestrant, the oral SERD versus standard of care endocrine therapy as treatment for medium and high-risk early-stage breast cancer. And what they showed, which I think was really remarkable with just about a three-year median follow-up, was an improvement in invasive disease-free survival with a hazard ratio of 0.7. I mean, really quite remarkable and so early. It looked as though this was all driven by the high-risk group, which makes sense, not the medium risk, it's too early. And also that there was a bigger benefit in patients who were on tamoxifen compared to giredestrant versus AI, but for both groups, the confidence intervals didn't cross 1. There's even a trend towards overall survival, even though it's way too early. I think that, you know, really well-tolerated oral drug that could improve outcome in early-stage disease, this is the first advance we've seen in over two decades in the treatment of early-stage hormone receptor-positive disease with just endocrine therapy. I think we think that we don't want to give up CDK4/6 inhibitors because we saw a survival benefit with abemaciclib and a trend with giving ribociclib in the NATALEE trial. So we're thinking that maybe one approach would be to give CDK4/6 inhibitors and then switch to an oral SERD or to have enough data to be able to give oral SERDs with these CDK4/6 inhibitors for early-stage disease. And that's all in the works, you know, lots of studies going on. We're going to see a lot of data with both switching 8,000 patients with an imlunestrant switching trial, an elacestrant trial going on, and safety data with giredestrant with abemaciclib and soon to come ribociclib. So, this is going to change everything for the treatment of early-stage breast cancer, and I hope cure more patients of the most common subset of the most common cancer diagnosed in women worldwide. Dr. Monty Pal: Super exciting. It's just remarkable to hear how this has evolved since 25 years ago, which is really the last time I sort of dabbled in breast cancer. Thank you so much, Hope, for joining us today. These were fantastic insights. Appreciate you being on the ASCO Daily News Podcast and really want to thank you personally for your remarkable contribution to the field of breast cancer. Dr. Hope Rugo: Thank you very much, and thanks for talking with me today. Dr. Monty Pal: You got it. And thanks a lot to our listeners today as well. You'll find links to all the studies we discussed today in the transcript of this episode. Finally, if you value the insights that you hear today on the ASCO Daily News Podcast, please 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 opinion of ASCO. The mention of any product, service, organization, activity, or therapy should not be construed as an ASCO endorsement. Follow today's speakers:   Dr. Monty Pal @montypal Dr. Hope Rugo  @hoperugo Follow ASCO on social media:       ASCO on X ASCO on Bluesky      ASCO on Facebook       ASCO on LinkedIn       Disclosures:     Dr. Monty Pal:   Speakers' Bureau: MJH Life Sciences, IntrisiQ, Peerview  Research Funding (Inst.): Exelixis, Merck, Osel, Genentech, Crispr Therapeutics, Adicet Bio, ArsenalBio, Xencor, Miyarsian Pharmaceutical  Travel, Accommodations, Expenses: Crispr Therapeutics, Ipsen, Exelixis  Dr. Hope Rugo:   Honoraria: Mylan/Viatris, Chugai Pharma  Consulting/Advisory Role: Napo Pharmaceuticals, Sanofi, Bristol Myer  Research Funding (Inst.): OBI Pharma, Pfizer, Novartis, Lilly, Merck, Daiichi Sankyo, AstraZeneca, Gilead Sciences, Hoffman La-Roche AG/Genentech, In., Stemline Therapeutics, Ambryx

women ai los angeles france japan wisdom french travel speaker japanese er single patients treatments ucla pleasure expanding san antonio fda elevate pfizer brilliant keynote breast cancer blue sky hp oral astrazeneca trop ascent tb merck gilead novartis sg dato accommodations sanofi treatment options asco genentech adc patina her2 pfs egfr gilead sciences adcs ipsen pd l1 ild esmo thp serd tki tnbc daiichi sankyo ctdna cdk4 tkis crispr therapeutics san antonio breast cancer symposium pik3ca esr1 rugo t dxd hope rugo serds t dm1 transcript dr disclosures dr

Colorectal Cancer — 5-Minute Journal Club Issue 1 with Dr Scott Kopetz: Current and Future Role of Tumor-Informed Circulating Tumor DNA Assays

current dynamic clinical informed tumors intercept cme colorectal cancer crc mrd circulating journal club future role minute journal assays ctdna

Play Episode Listen Later Jan 6, 2026 20:48

Featuring an interview with Dr Scott Kopetz, including the following topics: Circulating tumor DNA (ctDNA)-based molecular residual disease (MRD) and survival among patients with resectable colorectal cancer (CRC) in the CIRCULATE-Japan GALAXY trial (0:00) ctDNA for detection of MRD in patients with CRC in the BESPOKE CRC and INTERCEPT trials (3:11) Clinical utility of including ctDNA monitoring in standard CRC surveillance (11:11) ctDNA analysis guiding adjuvant therapy for CRC in the DYNAMIC and CIRCULATE-North America trials (15:52) CME information and select publications

Enfortumab vedotin + Pembro FDA Approval in Muscle Invasive Bladder Cancer (MIBC): Dr. Thomas Powles

Play Episode Listen Later Dec 31, 2025 19:44

Join us for another insightful episode of the Oncology Brothers podcast, where we dived into the latest advancements in bladder cancer treatment! In this episode, we discussed the groundbreaking approval of Enfortumab vedotin (EV) combined with Pembrolizumab (Pembro) for cisplatin-ineligible muscle-invasive bladder cancer, based on the impressive results from the Keynote-905/EV-303 study. We are thrilled to have Dr. Tom Powles, a world-renowned GU medical oncologist, share his expertise on the study design, findings, and implications for patient care. Discover how this new standard of care is transforming treatment options, improving event-free survival, and overall survival rates for patients. Key topics covered in this episode included: • Overview of the Keynote-905/EV-303 study and its significance • Comparison with previous studies like the NIAGARA trial • Discussion on the side effects of EV Pembro and management strategies • The role of ctDNA in guiding post-operative therapy • Future directions in bladder cancer research and upcoming trials Whether you're a healthcare professional, a patient, or simply interested in the latest in oncology, this episode is packed with valuable insights. Follow us on social media: •⁠ ⁠X/Twitter: https://twitter.com/oncbrothers •⁠ ⁠Instagram: https://www.instagram.com/oncbrothers •⁠ Website: https://oncbrothers.com/ Don't forget to like, subscribe, and hit the notification bell for more practice-changing updates in oncology! #BladderCancer #Keynote905 #ADC #Immunotherapy #OncologyBrothers #GUOncology #MIBC

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ctDNA-Guided Immunotherapy Shows Survival Benefit in MIBC: IMvigor011 Results

Project Oncology®

Play Episode Listen Later Dec 23, 2025 12:45

Host: Charles Turck, PharmD, BCPS, BCCCP Guest: Andrea Necchi, MD Presented at the 2025 ESMO Congress, the IMvigor011 phase 3 trial evaluated a ctDNA-guided strategy for administering adjuvant atezolizumab in patients with muscle-invasive bladder cancer (MIBC) following radical cystectomy. Patients with high-risk pathological features were monitored using a personalized, tumor-informed ctDNA assay; those testing positive for ctDNA were randomized to receive atezolizumab or placebo, while ctDNA-negative patients continued surveillance without treatment. The trial demonstrated significant improvements in both disease-free and overall survival in the atezolizumab group along with favorable outcomes among ctDNA-negative patients, suggesting many may safely avoid overtreatment. Joining Dr. Charles Turck to unpack the study results and how they highlight ctDNA's role in guiding personalized therapy is Dr. Andrea Necchi. Not only is he an investigator on this research, but he's also an Associate Professor of Oncology at Vita-Salute San Raffaele University and the Director of Genitourinary Medical Oncology at IRCCS San Raffaele Hospital and Scientific Institute in Milan, Italy.

director italy patients survival associate professor benefit guided oncology pharmd immunotherapy urology rmd bcps ctdna reachmd oncology and hematology mibc global oncology academy charles turck host charles turck genitourinary medical oncology

S14 Ep68: ctDNA Testing Opens Avenues for the Future of Breast Oncology: With Jason Mouabbi, MD

NEJM This Week — Audio Summaries

Play Episode Listen Later Dec 22, 2025 20:38

In today's episode, we had the pleasure of speaking with Jason Mouabbi, MD, about the role of circulating tumor DNA (ctDNA) testing in early-stage breast cancer management. Dr Mouabbi is an assistant professor in the Department of Breast Medical Oncology in the Division of Cancer Medicine at The University of Texas MD Anderson Cancer Center in Houston. In our exclusive interview, Dr Mouabbi highlighted the ways that ctDNA has evolved from a research tool to a potential clinical decision-making aid in breast cancer, data suggesting that ctDNA negativity after neoadjuvant therapy can be more predictive of long-term outcomes than pathologic complete response, and the importance of offering ctDNA testing to patients and discussing the benefits of this emerging approach.

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NEJM This Week — December 18, 2025

Play Episode Listen Later Dec 17, 2025 23:29

This week, we look at ctDNA-guided immunotherapy for bladder cancer, cardiovascular outcomes with tirzepatide, and evidence that one HPV vaccine dose may be enough. We explore high-dose rifampin for tuberculous meningitis, review measles amid rising outbreaks, and follow a challenging case of gastrointestinal bleeding. Essays examine how clinicians navigate post-Dobbs care, tobacco harm among people with mental illness, congenital syphilis, and sustaining medical research.

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Podcast: FGFR3 Alteration Status and Immunotherapy in Urothelial Cancer

Journal of Clinical Oncology (JCO) Podcast

Play Episode Listen Later Dec 17, 2025 18:51

JCO PO author Dr. Shilpa Gupta at Cleveland Clinic Children's Hospital shares insights into her article, "Fibroblast Growth Factor Receptor 3 (FGFR3) Alteration Status and Outcomes on Immune Checkpoint Inhibitors (ICPI) in Patients with Metastatic Urothelial Carcinoma". Host Dr. Rafeh Naqash and Dr. Gupta discuss how FGFR3 combined with TMB emerged as a biomarker that may be predictive for response to ICPI in mUC. TRANSCRIPT Dr. Rafeh Naqash: Hello and welcome to JCO Precision Oncology Conversations, where we bring you engaging conversations with authors of clinically relevant and highly significant JCO PO articles. I'm your host, Dr. Rafeh Naqash, podcast editor for JCO Precision Oncology and Associate Professor at the OU Health Stephenson Cancer Center. Today I am excited to be joined by Dr. Shilpa Gupta, Director of Genitourinary Medical Oncology at the Cancer Institute and co-leader of the GU Oncology Program at the Cleveland Clinic, and also lead author of the JCO PO article titled "Fibroblast Growth Factor Receptor 3 Alteration Status and Outcomes on Immune Checkpoint Inhibitors in Patients With Metastatic Urothelial Carcinoma." At the time of this recording, our guest's disclosures will be linked in the transcript. Shilpa, welcome again to the podcast. Thank you for joining us today. Dr. Shilpa Gupta: Thank you, Rafeh. Honor to be here with you again. Dr. Rafeh Naqash: It is nice to connect with you again after two years, approximately. I think we were in our infancy of our JCO PO podcast when we had you first time, and it has been an interesting journey since then. Dr. Shilpa Gupta: Absolutely. Dr. Rafeh Naqash: Well, excited to talk to you about this article that you published. Wanted to first understand what is the genomic landscape of urothelial cancer in general, and why should we be interested in FGFR3 alterations specifically? Dr. Shilpa Gupta: Bladder cancer or urothelial cancer is a very heterogeneous cancer. And while we find there is a lot of mutations can be there, you know, like BRCA1, 2, in HER2, in FGFR, we never really understood what is driving the cancer. Like a lot of old studies with targeted therapies did not really work. For example, we think VEGF can be upregulated, but VEGF inhibitors have not really shown definite promise so far. Now, FGFR3 receptor is the only therapeutic target so far that has an FDA approved therapy for treating metastatic urothelial cancer patients, and erdafitinib was approved in 2019 for patients whose tumors overexpressed FGFR3 mutations, alterations, or fusions. And in the landscape of bladder cancer, it is important because in patients with non-muscle invasive bladder cancer, about 70 to 80% patients can have this FGFR3. But as patients become metastatic, the alterations are seen in, you know, only about 10% of patients. So the clinical trials that got the erdafitinib approved actually used archival tumor from local cancer. So when in the real world, we don't see a lot of patients if we are trying to do metastatic lesion biopsies. And why it is important to know this is because that is the only targeted therapy available for our patients right now. Dr. Rafeh Naqash: Thank you for giving us that overview. Now, on the clinical side, there is obviously some interesting data for FGFR3 on the mutation side and the fusion side. In your clinical practice, do you tend to approach these patients differently when you have a mutation versus when you have a fusion? Dr. Shilpa Gupta: We can use the treatment regardless of that. Dr. Rafeh Naqash: I recently remember I had a patient with lung cancer, squamous lung cancer, who also had a synchronous bladder mass. And the first thought from multiple colleagues was that this is metastatic lung. And interestingly, the liquid biopsy ended up showing an FGFR3-TACC fusion, which we generally don't see in squamous lung cancers. And then eventually, I was able to convince our GU colleagues, urologists, to get a biopsy. They did a transurethral resection of this tumor, ended up being primary urothelial and synchronous lung, which again, going back to the FGFR3 story, I saw in your paper there is a mention of FGFR3-TACC fusions. Anything interesting that you find with these fusions as far as biology or tumor behavior is concerned? Dr. Shilpa Gupta: We found in our paper of all the patients that were sequenced that 20% had the pathognomonic FGFR3 alteration, and the most common were the S249C, and the FGFR3-TACC3 fusion was in 45 patients. And basically I will say that we didn't want to generate too much as to fusion or the differences in that. The key aspect of this paper was that historically there were these anecdotal reports saying that patients who have FGFR alterations or mutations, they may not respond well to checkpoint inhibitors because they have the luminal subtype. And these were backed by some preclinical data and small anecdotal reports. But since then, we have seen that, and that's why a lot of people would say that if somebody's tumor has FGFR3, don't give them immunotherapy, give them erdafitinib first, right? So then we had this Phase 3 trial called the THOR trial, which actually showed that giving erdafitinib before pembrolizumab was not better. That debunked that myth, and we are actually reiterating that because in our work we found that patients who had FGFR3 alterations or fusions, and if they also have TMB-high, they actually respond very well to single agent immunotherapy. And that is, I think, very important because it tells us that we are not really seeing that so-called potential of resistance to immunotherapy in these patients. So to answer your question, yeah, we did see those differences, but I wouldn't say that any one marker is more prominent. Dr. Rafeh Naqash: The analogy is kind of similar to what we see in lung cancer with these mutations called STK11/KEAP1, which are also present in some other tumors. And one of the questions that I don't think has been answered is when you have in lung cancer, if you extrapolate this, where doublet or single agent immunotherapy doesn't do as well in tumors that are STK11 mutated. But then if you have a high TMB, question is does that TMB supersede or trump the actual mutation? Could that be one reason why you see the TMB-high but FGFR3 altered tumors in your dataset responding or having better outcomes to immunotherapy where potentially there is just more neoantigens and that results in a more durable or perhaps better response to checkpoint therapy? Dr. Shilpa Gupta: It could be. But you know, the patients who have FGFR alterations are not that many, right? So we have already seen that just patients with TMB-high respond very well to immunotherapy. Our last podcast was actually on that, regardless of PD-L1 that was a better predictor of response to immunotherapy. So I think it's not clear if this is adding more chances of response or not, because either way they would respond. But what we didn't see, which was good, that if they had FGFR3, it's not really downplaying the fact that they have TMB-high and that patients are not responding to immunotherapy. So we saw that regardless, and that was very reassuring. Dr. Rafeh Naqash: So if tomorrow in your clinic you had an individual with an FGFR3 alteration but TMB-high, I guess one could be comfortable just going ahead with immunotherapy, which is what the THOR trial as you mentioned. Dr. Shilpa Gupta: Yes, absolutely. And you know, when you look at the toxicity profiles of pembrolizumab and erdafitinib, really patients really struggle with using the FGFR3 inhibitors. And of course, if they have to use it, we have to, and we reserve it for patients. But it's not an easy drug to tolerate. Currently the landscape is such that, you know, frontline therapy has now evolved with an ADC and immunotherapy combinations. So really if patients progress and have FGFR3 alterations, we are using erdafitinib. But let's say if there were a situation where a patient has had chemotherapy, no immunotherapy, and they have FGFR3 upregulation and TMB-high, yes, I would be comfortable with using only pembrolizumab. And that really ties well together what we saw in the THOR trial as well. Dr. Rafeh Naqash: Going to the clinical applications, you mentioned a little bit of this in the manuscript, is combination therapies. You alluded to it a second back. Everything tends to get combined with checkpoint therapy these days, as you've seen with the frontline urothelial, pembrolizumab with an ADC. What is the landscape like as far as some of these FGFR alterations are concerned? Is it reasonable to combine some of those drugs with immune checkpoint therapy? And what are some of the toxicity patterns that you've potentially seen in your experience? Dr. Shilpa Gupta: So there was indeed a trial called the NORSE trial. It was a randomized trial but not a comparative cohort, where they looked at FGFR altered patients. And when they combined erdafitinib plus cetrelimab, that did numerically the response rates were much higher than those who got just erdafitinib. So yeah, the combination is definitely doable. There is no overlapping toxicities. But unfortunately that combination has not really moved forward to a Phase 3 trial because it's so challenging to enroll patients with such kind of rare mutations on large trials, especially to do registration trials. And since then the frontline therapy has evolved to enfortumab vedotin and pembrolizumab. I know there is an early phase trial looking at a next generation FGFR inhibitor. There is a triplet combination looking in Phase 1 setting with a next generation FGFR inhibitor with EV-pembro. However, it's not a randomized trial. So you know, I worry about such kinds of combinations where we don't have a path for registration. And in the four patients that have been treated, four or five patients in the early phase as a part of basket trial, the toxicities were a lot, you know, when you combine the EV-pembro and an FGFR3 inhibitor, we see more and more toxicity. So the big question is do we really need the "kitchen sink" approach when we have a very good doublet, or unless the bar is so high with the doublet, like what are we trying to add at the expense of patient toxicity and quality of life is the big question in my mind. Dr. Rafeh Naqash: Going back to your manuscript specifically, there could be a composite biomarker. You point out like FGFR in addition to FGFR TMB ends up being predictive prognostic there. So that could potentially be used as an approach to stratify patients as far as treatment, whether it's a single agent versus combination. Maybe the TMB-low/FGFR3 mutated require a combination, but the TMB-high/FGFR mutated don't require a combination, right? Dr. Shilpa Gupta: No, that's a great point, yeah. Dr. Rafeh Naqash: But again, very interesting, intriguing concepts that you've alluded to and described in this manuscript. Now, a quick take on how things have changed in the bladder cancer space in the last two years. We did a podcast with you regarding some biomarkers as you mentioned two years back. So I really would like to spend the next minute to two to understand how have things changed in the bladder cancer space? What are some of the exciting things that were not there two years back that are in practice now? And how do you anticipate the next two years to be like? Maybe we'll have another podcast with you in another two years when the space will have changed even more. Dr. Shilpa Gupta: Certainly a lot has happened in the two years, you know. EV-pembro became the universal frontline standard, right? We have really moved away from cisplatin eligibility in metastatic setting because anybody would benefit from EV-pembro regardless of whether they are candidates for cisplatin or not, which historically was relevant. And just two days ago, we saw that EV-pembro has now been approved for localized bladder cancer for patients who are cisplatin ineligible or refusing. So, you know, this very effective regimen moving into earlier setting, we now have to really think of good treatment options in the metastatic setting, right? So I think that's where a lot of these novel combinations may come up. And what else we've seen is in a tumor agnostic trial called the DESTINY-PanTumor trial, patients who had HER2 3+ on immunohistochemistry, we saw the drug approval for T-DXd, and I think that has kind of reinvigorated the interest in HER2 in bladder cancer, because in the past targeting HER2 really didn't work. And we still don't know if HER2 is a driver or not. And at ESMO this year, we saw an excellent study coming out of China with DV which is targeting HER2, and toripalimab, which is a Chinese checkpoint inhibitor, showing pretty much similar results to what we saw with EV-pembro. Now, you know, not to do cross-trial comparisons, but that was really an amazing, amazing study. It was in the presidential session. And I think the big question is: does that really tell us that HER2-low patients will not benefit? Because that included 1+, 2+, 3+. So that part we really don't know, and I think we want to study from the EV-302 how the HER2 positive patients did with EV and pembro. So that's an additional option, at least in China, and hopefully if it gets approved here, there is a trial going on with DV and pembro. And lastly, we've seen a very promising biomarker, like ctDNA, for the first time in bladder cancer in the adjuvant setting guiding treatment with adjuvant atezolizumab. So patients who were ctDNA positive derived overall survival and recurrence-free survival benefit. So that could help us select moving forward with more studies. We can spare unnecessary checkpoint inhibitors in patients who are not going to benefit. So I think there is a lot happening in our field, and this will help do more studies because we already have the next generation FGFR inhibitors which don't have the toxicities that erdafitinib comes with. And combining those with these novel ADCs and checkpoint inhibitors, you know, using maybe TMB as a biomarker, because we really need to move away from PD-L1 in bladder cancer. It's shown no utility whatsoever, but TMB has. Dr. Rafeh Naqash: Well, thank you so much, Shilpa, for that tour de force of how things have changed in bladder cancer. There used to be a time when lung and melanoma used to lead this space in terms of the number of approvals, the biomarker development. It looks like bladder cancer is shifting the trend at this stage. So definitely exciting to see all the new changes that are coming up. I'd like to spend another minute and a half on your career. You've obviously been a leader and example for many people in the GU space and beyond. Could you, for the sake of our early career especially, the trainees and other listeners, describe how you focused on things that you're currently leading as a leader, and how you shaped your career trajectory over the last 10 years? Dr. Shilpa Gupta: That's a really important question, Rafeh, and you and I have had these discussions before, you know, being an IMG on visas like you, and being in different places. I think I try to make the most of it, you know, instead of focusing on the setbacks or the negative things. Like tried to grab the opportunities that came along. When I was at Moffitt, got to get involved with the Phase 1 trial of pembrolizumab in different tumor types. And just keeping my options open, you know, getting into the bladder cancer at that time when I wanted to really do only prostate, but it was a good idea for me to keep my options open and got all these opportunities that I made use of. I think an important thing is to, like you said, you know, have a focus. So I am trying to focus more on biomarkers that, you know, we know that 70% patients will respond to EV-pembro, right? But what about the remaining 30%? Like, so I'm really trying to understand what determines hyperprogressors with such effective regimens who we really struggle with in the clinic. They really don't do well with anything we give them after that. So we are doing some work with that and also trying to focus on PROs and kind of patient-reported outcomes. And a special interest that I've now developed and working on it is young-onset bladder cancer. You know, the colorectal cancer world has made a lot of progress and we are really far behind. And bladder cancer has historically been a disease of the elderly, which is not the case anymore. We are seeing patients in their 30s and 40s. So we launched this young-onset bladder cancer initiative at a Bladder Cancer Advocacy Network meeting and now looking at more deep dive and creating a working group around that. But yeah, you know, I would say that my philosophy has been to just take the best out of the situation I'm in, no matter where I am. And it has just helped shape my career where I am, despite everything. Dr. Rafeh Naqash: Well, thank you again. It is always a pleasure to learn from your experiences and things that you have helped lead. Appreciate all your insights, and thank you for publishing with JCO PO. Hopefully we will see more of your biomarker work being published and perhaps bring you for another podcast in a couple of years. Dr. Shilpa Gupta: Yeah, thank you, Rafeh, for the opportunity. And thanks to JCO PO for making these podcasts for our readers. So thanks a lot. Dr. Rafeh Naqash: Thank you for listening to JCO Precision Oncology Conversations. Don't forget to give us a rating or review and be sure to subscribe so you never miss an episode. You can find all ASCO shows at asco.org/podcast. 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. DISCLOSURES Dr. Shilpa Gupta Stock and Other Ownership Interests: Company: BioNTech SE, Nektar Consulting or Advisory Role: Company: Gilead Sciences, Pfizer, Merck, Foundation Medicine, Bristol-Myers Squibb/Medarex, Natera, Astellas Pharma, AstraZeneca, Novartis, Johnson & Johnson/Janssen Research Funding: Recipient: Your Institution Company: Bristol Myers Squibb Foundation, Merck, Roche/Genentech, EMD Serono, Exelixis, Novartis, Tyra Biosciences, Pfizer, Convergent Therapeutics, Acrivon Therapeutics, Flare Therapeutics, Amgen Travel, Accommodations, Expenses: Company: Pfizer, Astellas Pharma, Merck

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Adjuvant Nivolumab in High-Risk Muscle Invasive Urothelial Carcinoma: 5-Year Data

Project Oncology®

Play Episode Listen Later Dec 16, 2025 12:30

Host: Brian P. McDonough, MD, FAAFP Guest: Matthew Galsky, MD Five years after treatment, the impact of adjuvant nivolumab still holds strong in high-risk muscle invasive urothelial carcinoma. Join Drs. Brian McDonough and Matthew Galsky as they review the CheckMate 274 trial's long-term data, which show sustained disease-free survival and highlight ctDNA's potential as a marker for residual disease. These findings reinforce nivolumab's role in the evolving standard of care and may support more personalized post-surgical strategies. Dr. Galsky is a Professor of Medicine and the Director of Genitourinary Medical Oncology at the Icahn School of Medicine at Mount Sinai in New York.

new york director professor data medicine md muscle mount sinai high risk invasive checkmate urology icahn school rmd carcinoma adjuvant ctdna nivolumab reachmd brian mcdonough oncology and hematology global oncology academy genitourinary medical oncology

Milan Consensus Endpoints for Bladder Preservation in MIBC

Play Episode Listen Later Dec 11, 2025 27:18

Guests Dr. Andrea Necchi, Dr. Ashish Kamat and host Dr. Davide Soldato discuss JCO article "End Points for the Next-Generation Bladder-Sparing Perioperative Trials for Patients With Muscle-Invasive Bladder Cancer," focusing on the evolving treatment landscape of MIBC (muscle-invasive bladder cancer) and the need to properly design novel trials investigating non-operative management while including the incorporation of biomarkers and patient perspectives in clinical trials. TRANSCRIPT The disclosures for guests on this podcast can be found in the show notes. Dr. Davide Soldato: Hello and welcome to JCO After Hours, the podcast where we sit down with authors from some of the latest articles published in the Journal of Clinical Oncology. I am your host, Dr. Davide Soldato, medical oncologist at Ospedale San Martino in Genoa, Italy. Today we are joined by JCO authors Andrea Necchi, Associate Professor of Medical Oncology at University San Raffaele and Medical Oncology at Ospedale San Raffaele in Milan, Italy, and Ashish Kamat, Professor of Urologic Oncology and Cancer Research at University of Texas MD Anderson Cancer Center. Both Professor Necchi and Professor Kamat are internationally recognized experts in the field of genitourinary malignancy and particularly in bladder cancer. Today we will be discussing the article titled "Endpoints for the Next Generation Bladder-Sparing Perioperative Trials for Patients with Muscle-Invasive Bladder Cancer." So thank you for speaking with us, Professor Necchi and Professor Kamat. Dr. Andrea Necchi: Thank you, Davide, and thank you JCO for the opportunity. Dr. Ashish Kamat: Yeah, absolutely. It is a great honor and privilege to be discussing this very important article with you. So thank you for the invitation. Dr. Davide Soldato: The article that you just published in JCO reports the results of a consensus meeting that was held among experts in the field of genitourinary malignancy and particularly for bladder cancer. So the objective was really to define endpoints for a novel generation of trials among patients diagnosed with muscle-invasive bladder cancer. So my first question would be: what is the change in clinical practice and in clinical evidence that we have right now that prompted the start of such consensus in 2025? Dr. Andrea Necchi: So, we are living so many changes in the treatment paradigm of patients with muscle-invasive bladder cancer. In general, patients diagnosed with bladder cancer or urothelial cancer today, thanks to the advent of immunotherapy or immunotherapy combinations, and today thanks to the advent of novel antibody-drug conjugates like enfortumab vedotin in combination with immunotherapy that are actually changing the landscape of treatment of patients with metastatic disease and also are entering quite fast into the treatment paradigm of patients with organ-confined disease with a lot of clinical trials testing these combination therapies, neoadjuvantly or adjuvantly, before or after radical cystectomy. Having said that, by potentiating the efficacy of systemic therapy, an increasing number of patients that receive neoadjuvant therapy of any kind, at a certain point in time, result to have achieved a deep response to systemic therapy, evaluated radiologically with conventional imaging, CT scan or MRI, or with cystoscopy or with other urology-based techniques, urinary cytology, and so. And based on the fact that they achieve a complete response, so no residual viable disease after systemic therapy, they raise concern about the fact that they have to undergo surgery like radical cystectomy that is quite impactful for their quality of life and for the future of their lives after the surgery. So the point that the patients are raising, and the patients are raising this point, is primarily due to the efficacy of systemic therapy. And we have seen so many cases fortunately achieving a deep response. So the question about what to do with the patient that at a certain point, at the start with the commitment to radical cystectomy, but at a certain point in time change their mind towards something else if possible, depending on the fact that they have achieved a deep response, is something that is a question and is a need to which we have to provide data, information, and guidance in general to the patients. Dr. Davide Soldato: If we look at the population that the recommendations were formulated for, we are mainly speaking about patients who would be fit for cystectomy, and this is a very distinct population compared to those who are not fit for cystectomy, both from a medical oncology point of view but also from a urologic point of view in terms of surgery. So, can you explain a little bit to our listeners why you think that this distinction is critical and why you developed this recommendation especially for this population? Dr. Ashish Kamat: That is a very important distinction that you made. To build upon what Professor Necchi mentioned earlier, this question that we get from patients after neoadjuvant therapy or systemic therapy is not a new question. It has been something that they have been asking us for the last 20 or 30 years. "Do I really need to have my bladder taken out?" And patients who are especially not fit for surgery will sometimes say, "Do I need to have my bladder taken out? And if I cannot have my bladder taken out, am I going to just not have anything done?" Because the eligibility for radical cystectomy is also a moving target. Over the years with improvement in surgical technique, improvement in perioperative therapy, ERAS protocols, et cetera, it is really unusual for us to deny a patient the opportunity to have major surgery unless clearly they have very significant comorbid conditions. So I think this endeavor is more broadly encompassing of the patient population than what was evident in previous years. And I really want to give a shout out to Professor Necchi because what we did was, as part of the International Bladder Cancer Group and Professor Necchi is an integral part of the scientific advisory board, we broached this topic broadly during one of our discussions. And of course, Andrea always does this, he picks on a topic and then he says, "Okay, we need to discuss this really in detail," put together a multinational, multicenter collaborative group, but the driving force was our patients. Because our patients are constantly asking, "Do I need to lose my organ? Do I need to have radiation therapy?" which again, also, has a lot of side effects. So this was really to answer the question in today's day and age as to do we need to do local consolidation, and if so, in what way? It is not a new question, but we have newer therapies, newer technology, and better ways to answer this. So it is a much needed question that needs to be answered. And I think the distinction between non-surgical candidates and surgical candidates is a little bit blurred in today's day and age. Dr. Davide Soldato: What about the eligibility, for example, for cisplatin-based chemotherapy? Because I think that that is a very fundamental part of this type of strategy that we apply to patients with muscle-invasive bladder cancer. So we know that there are some caveats for proposing such treatment. And also this population was specifically defined inside this recommendation. Dr. Andrea Necchi: I think that the focus of our work is just to analyze what is happening after any type of systemic therapy the patient may get neoadjuvantly. So it is not actually a question of treatment eligibility or including cisplatin eligibility. This is an old question of today's practice and clinical trials. But regardless of what the patient received neoadjuvantly, the point that we have addressed in our consensus meeting was what to do next as a further step after systemic therapy or not. So basically we are- the consensus guidance includes all-comers, so patients to get any type of systemic therapy. So really non-selected based on specific features that determine a special eligibility to a special or a particular therapy. But an all-comer approach is always the winning approach for the translation to be in practice, an all-comer approach just focusing on what has happened after treatment and that we are assessing by the use of conventional imaging, MRI or CT, cystoscopy, urinary cytology, and trying to merge all together this information, all these features in a unique, shared, reliable definition of clinical complete response that could be used as a biomarker for the selection of newer therapies instead of pathological response that has been historically used, and maybe surrogate for the outcome, the long-term outcome and survival of these patients. Dr. Davide Soldato: A very specific point of the consensus was actually the definition of clinical complete response. As you were saying, this is actually a combination of several parameters including urinary cytology, the use of cross-sectional imaging, for example CT scan, but also the evaluation in cystoscopy of the bladder. Do you foresee any potential problems when applying this type of recommendation, not inside clinical trials, but in the context of routine clinical practice? Dr. Ashish Kamat: Absolutely. And that was the whole reason we had this consensus meeting. What happens nowadays in daily practice, and we see this every day at our center, we see patients referred to us. This definition or this sort of attempt to define clinical complete response is an ongoing issue. And urologists, medical oncologists, radiation oncologists are always looking to see, does my patient have a complete response? That definition and those paradigms have changed and evolved over the years. The FDA had a workshop many years ago looking at this very question. And it was to address the proposal that complete clinical response, which is a clinical definition, a clinical state, does this correlate with pathologic response? And with the technology and the systemic therapies we had then, the answer was 'no'. In fact, more patients got recurrent disease than did not get recurrent disease. And that is why, of course in the paper we mention the trials that looked at this question, the trials that evolved around this question. And I think the distinction between a clinical trial and daily practice is extremely important when we are looking at this definition per se. Because essentially what happens with this issue is that if the patient is not appropriately counseled, and if the physician does not do the appropriate clinical complete response assessment as Professor Necchi mentioned, right, cystoscopy, cytology, imaging, use of markers that are still in evolvement, we risk doing harm to the patient. So we caution in the paper too that this definition is not ready for prime time use. It is something that needs to be studied. It is a rigorous definition and currently we are recommending it for clinical trials. I am sure eventually it will trickle down into clinical practice, but that guidance was not the purpose of this consensus meeting. Dr. Davide Soldato: There are several parameters that are potentially evolving and could potentially enter inside of clinical practice. For example, you mentioned pelvic MRI and we have now very specific criteria, the VI-RADS criteria, we're able actually to diagnose and also to provide information. So along with these novel imaging techniques, we also know that there are novel biomarkers that could be explored, for example ctDNA and urinary DNA. So what I was wondering is, why were not these included inside the definition that you provide for clinical complete response? And do you think that, as we are designing these trials to potentially spare cystectomy for this patient, we should include these biomarkers very early so that we can actually provide better stratification for our patients and really propose this type of cystectomy-sparing strategy only to those where we are very confident that we have obtained a clinical complete response? Dr. Andrea Necchi: I would say you have just to wait. So a follow-up is ongoing and hard work is ongoing. At the time we met, at the time we established the meeting in mid-December last year, we had no information on the ctDNA data from major trials, with only a few exceptions. So we were just at the beginning of a story that was more than likely to change but still without numbers and without data from clinical trials. Now in just nine months or 10 months time, we have accumulated important data and newer data will be presented during just a few weeks and a few days regarding the ctDNA, circulating tumor DNA in particular, as a prognostic marker assessed baseline or assessed after neoadjuvant therapy. So the point is certainly well made and ctDNA is certainly well shaped to be incorporated in a future definition of clinical complete response. But you have to consider the fact that most of the data that we are accumulating related to ctDNA are about the post-cystectomy field or the metastatic field. So regarding neoadjuvant therapy, you know, we have neoadjuvant therapy in the context of bladder-sparing approach, basically we have no information. And the point that is emerging in our daily practice when using these biomarkers or in clinical trials, and the impression in general, is that it is a very strong biomarker associated with survival, but we absolutely do not know what is the performance of the test in the prediction of superficial bladder relapses, high-grade pTa relapse in the bladder that is left untouched in the patient. We are considering, and maybe it will be just a matter of further discussion, not just what is happening within the immediate endpoint of clinical CR, but also what is happening later with other survival endpoints. And for example, when looking at the type of events that we may see in this kind of bladder-sparing approaches, most of the events, also in the trials that have been published including the RETAIN study published in JCO, most of the events are related to superficial high-grade superficial non-muscle invasive relapses. So the ability to predict these types of events with ctDNA is completely unknown. Maybe, maybe other liquid biomarkers like urinary tumor DNA, utDNA, could be a bit better shaped in the prediction of this kind of events, you know. But we have still to build the story. So the question is good. The answer is yes, we will likely, more than likely incorporate liquid biomarkers in the definition, but we have to wait at least more data and more robust data in order to translate this information in routine practice, you know. Another consensus meeting is organized by IBCG and the same folks for November. This meeting will be primarily focused on the liquid biomarkers, the interpretation and use and approval and so of liquid biomarkers including bladder cancer. And we will likely be able to address all these, most of these open issues, so most of these points in the next meetings. Dr. Davide Soldato: In the consensus you say that probably clinical complete response is now ready to be included in early phase trials, so actually to test what is the efficacy of the regimens that is being evaluated inside of these trials. But you actually do very in-depth work of defining what are the most appropriate endpoints for later phase trials. So to be very specific, the phase three registrational trials that bring new regimens inside of this space. So I just wanted to hear a little bit about what was the definition for event-free survival, which you define as the most appropriate one for this type of trials. And as you were mentioning before, Professor Necchi, there is a very specific interest on the type of events that we observe, especially when we look at these superficial relapses inside of the bladder. So was this a very urgent matter of debate as we define which type of events should actually trigger event-free survival? And did you make a very thoughtful decision about why using this type of endpoint instead of others, for example metastasis-free survival? Dr. Ashish Kamat: Yeah, this was a matter of intense debate as you might imagine. And again, this is a moving target. So as Professor Necchi mentioned, we tend to partner with each other, our organizations, on having definitions of clinical complete response, biomarker, retreats, and then using that as a marker, and you might imagine this definition of what is appropriate event-free survival, what events matter to the patient, is something we have been talking about for two years. It was not just something that came up at the retreat. But at the retreat there was intense discussion. One of the things that we talked about was bladder-intact event-free survival because we are trying to spare the patient's bladder. And do we count bladder-intact event-free survival as something that is relevant? The patient advocates absolutely liked that, right? They wanted that. But then we also learned from some of the studies, for example from the RETAIN study, that the non-muscle invasive recurrences can actually lead to metastatic disease. It is not as benign when you have a patient with muscle-invasive bladder cancer that then develops a non-invasive tumor because maybe there is cancer growing underneath the surface that we don't detect when we look in the bladder. So a lot of those discussions were held, debated. It was a consensus. I have to say it was not 100% agreement on that particular definition, but it was broad consensus. And Andrea, do you want to clarify a little bit as to how we came about that consensus? Because I think this is a very important point we need to make. Dr. Andrea Necchi: We focused on a bit different definition of BI-EFS, Bladder-Intact Event-Free survival. Just stating EFS as an all-inclusive parameter including all type of high-grade relapse or progression or death that may happen to the patient. So that we were counting high-grade pTa, pT1, CIS relapses to the bladder and of course more deeper involvement in the muscle layer and so, and metastatic disease as a relapse. But the point is that as compared to the classical bladder-intact EFS definition of chemoradiation bladder-sparing approaches that is including muscle-invasive relapses only or death as events, we tried to be as inclusive as possible in order to be as much conservative as possible and to raise as higher the bar as possible for the success. And this is actually what the patients are asking us. So they are asking, "Okay, I can save my bladder, sparing radical cystectomy, but at which cost?" So in order to provide an answer, we have to be very, very cautious and be on the right shape, on the right position to say, "Okay, we have accomplished the most, the safest points, you know, by which you can proceed with the bladder-sparing." This is the first point. The other point is related to the MFS, metastasis-free survival that you have mentioned. For sure, it was recognized as a very important point for sure. But in the discussion was clear that our focus was in saving patients, curing the patient, and saving the bladder. Any single event, superficial event that may occur in the bladder-saving approaches of this kind may expose the patient to an extra risk of developing distant metastases, as it happened for example in the RETAIN study. So EFS defined as we have agreed and published, is actually a way of including or anticipating in a safest position the MFS. Because most or if not the entirety of the events of metastasis development in patients undergoing bladder-sparing after neoadjuvant systemic therapy were preceded by a superficial phase of disease relapse, you know. So I remember very, very few, or we can count just on the finger of one hand, the cases that have been reported in the literature developing de novo metastatic disease in the similar bladder-sparing approaches, in particular when using a maintenance immunotherapy strategy, you know, after they reach TURBT. So this is the reason why with all the limitation that Ashish has mentioned, with all the uncertainties that are still there, the nervousness that is still there, EFS, as defined in the protocol, as put in the paper, is to us at the moment is the safest way to use a primary endpoint in potentially registration trials of this kind with perioperative systemic therapy and response-adapted surgery. Dr. Ashish Kamat: And David, just to be absolutely clear for our listeners, right, so what was the event-free survival that we defined? Essentially it was a very inclusive definition. Event was defined as high-grade tumor persistence, recurrence, or progression during or after perioperative therapy, and receipt of any additional standard of care treatment including radical cystectomy, radiotherapy or even intravesical therapy. So this was done at the behest of our patient advocates because we really wanted to make a very robust definition that could be utilized appropriately as an adequate primary endpoint for both early and late phase bladder preservation trials. Dr. Davide Soldato: I think that it really highlights one of the points that I liked the most about this consensus is that it really incorporated the patient vision and a sort of shared decision making process when we are deciding how we want to design these trials that will explore this bladder-sparing surgery. And Professor Necchi mentioned something that I think will be also a very interesting question for trials that will be developed considering the activity of this combination that we are seeing right now, which is maintenance. Because right now our approach in the few cases where patients do not do any type of treatments after an induction with neoadjuvant treatments is basically represented by observation. So I was wondering if you think that the field will actually evolve to a sort of maintenance strategy even in patients that will achieve a complete clinical response? Dr. Andrea Necchi: We just mentioned briefly in the paper, this is a very important point that was touched during the discussion, and in particular was raised and discussed by FDA people participating in the meeting. And when looking at the data from the trials that were available and are still available thus far, we could provide a suggestion that maintenance immune therapy is the preferred approach in this kind of approach as it currently stands, as the data currently stand. Because the cleanest data towards the successful part of this journey is related to the studies that provided a kind of maintenance therapy, like the study with nivolumab or the RETAIN-2 study with maintenance immune therapy instead of RETAIN study that was just stopping treatment until surgery with MVAC chemotherapy. So in general the impression is that maintenance therapy may help in reducing the type of events, including the events that we incorporate in the EFS definition that we mentioned in the paper. The point that you mentioned is very important because on the other side we have a problem, a big problem of affordability and cost of the treatment. The de-escalation trials are an urgent need and represent a call for the studies. Unfortunately, as you mentioned, this is something that moves beyond the possibilities of this type of consensus because we don't have data and we have to accumulate data from clinical trials prior to saying, "Okay, certain patients could de-escalate therapy and stop therapy and some other not." So we are still at the very beginning. So we can do- we can discuss about this in the radical cystectomy paradigm but not in the bladder-sparing paradigm, you know. But this is for sure a point, a discussion point that will be taken, pretty well taken in one year or two year projection. Dr. Davide Soldato: I was wondering if in the consensus, considering that patient advocates and patient associations were also involved, did you decide to actually suggest the inclusion of patient-reported outcomes or the evaluation of shared decision-making in the development of this trial really as endpoints that should matter as much or as much as possible as event-free survival and clinical complete response? Dr. Ashish Kamat: Oh yeah, absolutely. We had patient advocates, we had the World Bladder Cancer Patient Coalition, Bladder Cancer Advocacy Network, patient representatives. And we always consider this. Shared decision-making is actually the impetus behind why these efforts have been launched, right? So it is the shared decision-making that is very, very important. It is the driving force behind what we do. And it is worth noting, for example, for the design of such studies, regulatory agencies consider response-based endpoints or overall survival as primary endpoints. But the patient advocates consider quality of life to be just as important, if not more important sometimes than overall survival numbers. Because patient advocates will say, "Well if I live longer but I'm miserable living longer, yes that works for regulatory agencies but doesn't work for us." So PROs clearly are very, very important. And, in fact, we just literally had a meeting in Houston, the IBCG meeting where PROs were a main point of what we discussed. So incorporating PROs in everything we do, not just this but everything we do, Dr. Necchi, myself, everybody involved in these fields realizes it is very, very important. So absolutely. Dr. Davide Soldato: I want to thank again Professor Necchi and Professor Kamat for joining us today. Dr. Andrea Necchi: Thank you. Dr. Ashish Kamat: It is our pleasure. Dr. Davide Soldato: Thanks again and we appreciate you sharing more on your JCO article titled "Endpoints for the Next Generation Bladder-Sparing Perioperative Trials for Patients with Muscle-Invasive Bladder Cancer." If you enjoy our show, please leave us a rating and review and be sure to come back for another episode. You can find all ASCO shows at asco.org/podcast. 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.

FDA Approval of Epcoritamab-Rituximab-Lenalidomide for R/R Follicular Lymphoma – Dr. Gilles Salles

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Play Episode Listen Later Dec 4, 2025 21:31

In this episode of The Oncology Brothers, we discussed the recent approval of Epcoritamab for relapsed refractory follicular lymphoma. Joined by Dr. Gilles Salles from Memorial Sloan Kettering, we dived into the EPCOR FL1 study, which highlighted the combination of Epcoritamab with rituximab and lenalidomide, showcasing significant improvements in progression-free survival (PFS) and overall response rates. Key topics included: • The mechanism of action of Epcoritamab as a bispecific antibody targeting CD20 and CD3. • Study design and findings from the EPCOR FL1 trial. • Step-up dosing schedule and its implications for patient management. • Side effects to monitor, including cytokine release syndrome (CRS) and immune effector cell-associated neurotoxicity syndrome (ICANS). • The role of minimal residual disease (MRD) and ctDNA in treatment decisions. Join us as we explored the future of treatment options in follicular lymphoma and the potential impact on patient quality of life. Follow us on social media: •⁠ ⁠X/Twitter: https://twitter.com/oncbrothers •⁠ ⁠Instagram: https://www.instagram.com/oncbrothers •⁠ Website: https://oncbrothers.com/ Don't forget to like, subscribe, and hit the notification bell for more updates on the latest in oncology! #Epcoritamab #FollicularLymphoma #BispecificAntibody #CRS #Immunotherapy #OncologyBrothers #Lymphoma

S14 Ep60: ctDNA Assays Are Poised to Reshape Lymphoma Treatment Strategies: With Sarah Rutherford, MD

new york strategy md treatments poised rutherford reshape lymphoma mrd weill cornell medicine hematology oncology treatment strategies assays ctdna

Play Episode Listen Later Dec 3, 2025 11:14

In today's episode, we had the pleasure of speaking with Sarah Rutherford, MD, about the evolving role of minimal residual disease (MRD) and circulating tumor DNA (ctDNA) testing for lymphoma treatment decision-making. Dr Rutherford is an associate professor of clinical medicine in the Division of Hematology/Oncology at Weill Cornell Medicine in New York, New York. In our exclusive interview, Dr Rutherford discussed the usefulness of ctDNA for guiding patient treatment, clinical trials that are ongoing to determine the best use of this type of assay, how personalized ctDNA testing offers the potential for disease surveillance and effective intervention, key hurdles in the way of widespread implementation of ctDNA testing in clinical practice, and how integration with next-generation sequencing is expected to further tailor treatment strategies.

FDA Approval of Epcoritamab-Rituximab-Lenalidomide for R/R Follicular Lymphoma – Dr. Gilles Salles

study gilles salles crs mrd fda approval pfs memorial sloan kettering cd3 follicular lymphoma rituximab ctdna cd20

Play Episode Listen Later Dec 1, 2025 21:31

S2 Ep66: Tracking Tumor Evolution Through MRD and ctDNA

Pharmacy Focus

Play Episode Listen Later Nov 28, 2025 20:27

evolution tracking tumors ctdna

EMUC25 special: Prof. Dyrskjøt talks about ctDNA in MIBC

EAU Podcasts

Play Episode Listen Later Nov 21, 2025 12:00

UROONCO BCa associate edtiors Dr. Laura Mertens (NL) and Dr. Elisabeth Grobet-Jeandin (CH) talked to Prof. Lars Dyrskjøt (DE) about ctDNA in muscle invasive bladder cancer. To conclude this discussion, the associate editors also prepared some insightful rapid fire questions for Prof. Dyrskjøt.This interview was recorded at EMUC25 in Prague. For more updates on bladder cancer, please visit our educational platform UROONCO BCa.For more EAU podcasts, please go to your favourite podcast app and subscribe to our podcast channel for regular updates: Apple Podcasts, Spotify, EAU YouTube channel.

spotify prof prague eau ctdna mibc

ER-Positive Metastatic Breast Cancer — A Roundtable Discussion on the Current and Future Role of Oral SERDs

Play Episode Listen Later Nov 14, 2025 150:36

Featuring slide presentations and related discussion from Prof Francois-Clement Bidard, Dr Hope S Rugo, Dr Rebecca Shatsky and Dr Seth Wander, including the following topics: Optimal approach to biomarker testing for patients with ER-positive metastatic breast cancer (mBC) (0:00) Case: A woman in her early 70s with recurrent ER-positive, HER2-negative mBC receives elacestrant (15:15) Case: A woman in her early 60s with ER-positive, HER2-low, PIK3CA-mutated mBC receives inavolisib-based therapy and experiences no disease progression for 24 months (18:02) Role of oral selective estrogen receptor degrader (SERD) monotherapy in the treatment of progressive ER-positive, HER2-negative mBC (26:26) Case: A woman in her mid 60s with recurrent HR-positive, HER2-negative mBC receives elacestrant (44:12) Case: A woman in her early 50s with recurrent HR-positive, HER2-negative, PIK3CA-mutant mBC receives capivasertib and fulvestrant (45:33) Potential novel applications of oral SERDs in the management of ER-positive, HER2-negative breast cancer (51:25) Case: A woman in her mid 50s with recurrent ER-positive, HER2-negative, PIK3CA-mutated mBC experiences disease progression 18 months after starting first-line letrozole and ribociclib (1:03:46) Case: A woman in her mid 50s with ER-positive, HER2-negative breast cancer undergoes serial ctDNA monitoring during first-line therapy (1:06:54) Tolerability and other practical considerations with oral SERDs (1:14:30) Case: A woman in her early 60s with recurrent HR-positive, HER2-negative mBC receives elacestrant (1:33:26) Case: A woman in her early 60s with recurrent HR-positive, HER2-negative mBC receives elacestrant (1:37:38) CME information and select publications

er positive current oral optimal roundtable discussion cme mbc her2 metastatic breast cancer future role serd ctdna tolerability pik3ca serds hope s rugo

S14 Ep48: PSMA Theranostics, ctDNA Testing, and Combination Regimens in GU Oncology Spark Conversation at CFS: With Benjamin P. Levy, MD; Scott T. Tagawa, MD, MS, FACP, FASCO

Play Episode Listen Later Nov 13, 2025 26:38

In today's episode, filmed live at the 43rd Annual Chemotherapy Foundation Symposium, lung cancer expert Benjamin P. Levy, MD, hosted a cross-specialty discussion with genitourinary (GU) cancer expert Scott T. Tagawa, MD, MS, FACP, FASCO, about the rapidly evolving treatment paradigms for prostate and kidney cancer. Dr Levy is the clinical director of medical oncology at the Johns Hopkins Sidney Kimmel Cancer Center at Sibley Memorial Hospital and an associate professor of oncology at the Johns Hopkins University School of Medicine in Washington, DC. Dr Tagawa is a professor of medicine and urology at Weill Cornell Medicine, as well as an attending physician at NewYork-Presbyterian – Weill Cornell Medical Center in New York, New York. Their conversation began with a focus on prostate-specific membrane antigen (PSMA)–positive prostate cancer. Dr Tagawa explained that PSMA is a cell surface protein, and that PSMA imaging agents are commonly used to assess biochemical recurrence and perform initial disease staging. He noted that therapy-related adverse effects are often site-specific, including dry mouth/change in taste, and myelosuppression from the radiation payload. For monitoring long-term safety, Dr Tagawa emphasized that renal function must be tracked. Beyond PSMA, other prostate cancer targets include TROP-2, B7-H3, and markers specific to aggressive or neuroendocrine variants, such as DLL3, he reported. In advanced GU cancers, circulating tumor DNA (ctDNA) testing is increasingly important, Dr Tagawa highlighted. In prostate cancer, ctDNA testing is used to assess homologous recombination deficiency (HRD) status and BRCA expression, he said, explaining that evidence for the use of ctDNA testing in GU cancers stems from findings with this type of assay to evaluate minimal residual disease levels in urothelial cancer. He noted that studies show that if patients with urothelial cancer become ctDNA positive within the first year of receiving neoadjuvant chemotherapy, they benefit from treatment with atezolizumab (Tecentriq). Similarly, he stated that patients with previously untreated HRD-positive metastatic prostate cancer also see a progression-free survival benefit when a PARP inhibitor is added to an androgen deprivation therapy/androgen receptor pathway inhibitor backbone. Shifting the conversation to the management of frontline advanced clear cell renal cell carcinoma (RCC), the experts reviewed standard approaches, which involve an immune-oncology (IO) agent plus either a CTLA-4 inhibitor or a VEGF TKI. Tagawa noted that IO/VEGF TKI combinations may be preferred for symptomatic patients needing a rapid response, whereas IO/IO combinations may offer greater potential for treatment cessation. He brought up a key distinction in RCC, which is that re-instituting PD-1/PD-L1 inhibition upon progression in the metastatic setting has generally shown no benefit. Dr Levy brought a broad scope to the GU cancer discussion through his lung cancer expertise, introducing parallels between the treatment paradigms. The interview provided an opportunity to show the importance of creating connections across oncology specialties to bring nuanced perspectives to future advances in clinical research and patient care.

new york conversations washington ms dc medicine testing md shifting spark gu levy io johns hopkins university trop pd oncology combination brca weill cornell medicine rcc hrd parp pd l1 ctdna psma ctla theranostics benjamin p fasco sibley memorial hospital

S14 Ep45: Urothelial ESMO 2025 Updates

ASCO eLearning Weekly Podcasts

Play Episode Listen Later Nov 11, 2025 13:11

Two Onc Docs, hosted by Samantha A. Armstrong, MD, and Karine Tawagi, MD, is a podcast dedicated to providing current and future oncologists and hematologists with the knowledge they need to ace their boards and deliver quality patient care. Dr Armstrong is a hematologist/oncologist and assistant professor of clinical medicine at Indiana University Health in Indianapolis. Dr Tawagi is a hematologist/oncologist and assistant professor of clinical medicine at the University of Illinois in Chicago. In this episode, OncLive On Air® partnered with Two Onc Docs to review exciting updates from the 2025 ESMO Congress about bladder cancer management that have the potential to change guidelines. In non–muscle-invasive bladder cancer (NMIBC), 2 trials added immunotherapy to BCG. The phase 3 POTOMAC trial (NCT03528694) combining durvalumab (Imfinzi) with BCG for high-risk, BCG-naive NMIBC was positive, demonstrating improved disease-free survival with the combination. This regimen might become a new standard of care and could reduce the need for early radical cystectomy, the experts highlighted. For muscle-invasive bladder cancer, the phase 3 KEYNOTE-905 study (NCT03924895) combined perioperative enfortumab vedotin-ejfv (Padcev) and pembrolizumab (Keytruda) for cisplatin-ineligible patients. This positive trial demonstrated strong event-free survival and overall survival (OS) with the combination. Furthermore, the phase 3 IMvigor011 trial (NCT04660344) provided data on a risk-adapted approach using adjuvant atezolizumab (Tecentriq) for post-cystectomy patients with circulating tumor DNA (ctDNA)–positive disease. For these patients, atezolizumab generated benefits in disease-free survival and OS, supporting the future use of ctDNA for personalized therapy. Updates in metastatic bladder cancer emphasized the importance of testing for FGFR alterations and HER2 expression in the second-line setting, Armstrong and Tawagi explained. The phase 1 FORAGER-1 study (NCT05614739) showed the efficacy of an oral FGFR3 inhibitor in heavily pretreated patients and showed lower rates of hypophosphatemia with the agent compared with erdafitinib (Balversa). Overall, the conference yielded many new and exciting data points for the treatment of patients with bladder cancer.

university chicago illinois md os indianapolis keynote armstrong potomac bcg forager her2 esmo keytruda ctdna indiana university health fgfr nmibc

Key Updates in Testicular Cancer: Optimizing Survivorship and Survival

Play Episode Listen Later Nov 10, 2025 21:44

Dr. Pedro Barata and Dr. Aditya Bagrodia discuss the evolving landscape of testicular cancer survivorship, the impact of treatment-related complications, and management strategies to optimize long-term outcomes and quality of life. TRANSCRIPT: Dr. Pedro Barata: Hello and welcome to By the Book, a podcast series from ASCO that features engaging conversations between editors and authors of the ASCO Educational Book. I'm Dr. Pedro Barata. I'm a medical oncologist at University Hospitals Seidman Cancer Center and associate professor of medicine at Case Western Reserve University in Cleveland, Ohio. I'm also an associate editor of the ASCO Educational Book. We all know that testicular cancer is a rare but highly curable malignancy that mainly affects young men. Multimodal advances in therapy have resulted in excellent cancer specific survival, but testicular cancer survivors face significant long term treatment related toxicities which affect their quality of life and require surveillance and management. With that, I'm very happy today to be joined by Dr. Aditya Bagrodia, a urologic oncologist, professor, and the GU Disease Team lead at UC San Diego[KI1] Health, and also the lead author of the recently published paper in the ASCO Educational Book titled, "Key Updates in Testicular Cancer: Optimizing Survivorship and Survival." And he's also the host of the world-renowned BackTable Urology Podcast. Dr. Bagrodia, I'm so happy that you're joining us today. Welcome. Dr. Aditya Bagrodia: Thanks, Pedro. Absolutely a pleasure to be here. Really appreciate the opportunity. Dr. Pedro Barata: Absolutely. So, just to say that our full disclosures are available in the transcript of this episode. Let's get things started. I'm really excited to talk about this. I'm biased, I do treat testicular cancer among other GU malignancies and so it's a really, really important topic that we face every day, right? Fortunately, for most of these patients, we're able to cure them. But it always comes up the question, "What now? You know, scans, management, cardio oncology, what survivorship programs we have in place? Are we addressing the different survivorship piece, psychology, fertility, et cetera?" So, we'll try to capture all of that today. Aditya, congrats again, you did a fantastic job putting together the insights and thoughts and what we know today about this important topic. And so, let's get focused specifically about what happens when patients get cured. So, many of us, in many centers, were fortunate enough to have these survivorship programs together, but I find that sometimes from talking to colleagues, they're not exactly the same thing and they don't mean the same thing to different people, to different institutions, right? So, first things first. What do you tell a patient perhaps when they ask you, "What can happen to me now that I'm done with treatment for testicular cancer?" Whether it's chemotherapy or just surgery or even radiation therapy? "So, what about the long term? What should I expect, Doctor, that might happen to me in the long run?" Dr. Aditya Bagrodia: Totally. I mean, I think that question's really front and center, Pedro, and really appreciate you all highlighting this topic. It was an absolute honor to work with true thought leaders and the survivorship bit of it is front and center, in my opinion. It's really the focus, you know, we, generally speaking should be able to cure these young men, but it's the 10, 15, 20 years down the way that they're going to largely contend with. The conversation really begins at diagnosis, pre-education. Fortunately, the bulk of patients that present are those with stage one disease, and even very basic things like before orchiectomy, talking about a prosthetic; we know that that can impact body image and self esteem, whether or not they decide to receive it or not. Actually, just being offered a prosthetic is important and this is something, you know, for any urologist, it's kind of critical. To discussing fertility elements to this, taking your time to examine the contralateral testicle, ask about fertility problems, issues, concerns, offer sperm banking, even in the context of a completely normal contralateral testicle, I think these things are quite important. So if it's somebody with stage one disease, you know, without going too far down discussing adjuvant therapy and so forth, I will start the conversation with, "You know, the testes do largely two things. They make testosterone and they make sperm." By and large, patients are going to be able to have acceptable levels of testosterone, adequate sperm parameters to maintain kind of a normal gonadal state and to naturally conceive, should that be something they're interested in. However, there's still going to be, depending on what resource you look at, somewhere in the order of 10-30% that are going to have issues. Where I think for the stage one patients, it's really incumbent upon us is actually to not wait for them to discuss their concerns, particularly with testosterone, which many times can be a little bit vague, but to proactively ask about it every time. Libido, erectile quality, muscle mass maintenance, energy, fatigue. All of these are kind of associated symptoms of hypogonadism. But for a lot of kids 18-20 years old, it's going to be something insidious that they don't think about. So, for the stage one patients, it absolutely starts with gonadal function. If they are stage two getting surgery, I think the counseling really needs to center around a possibility for ejaculatory dysfunction. Now, for a chemotherapy-naive, nerve-sparing RPLND, generally these days we should be able to preserve ejaculatory function at high volume centers, but you still want to bring that up and again kind of touch base on thinking about sperm banking and so forth before the operation, scars, those are things I think worth talking about, small risk of ascites. Then, I think the intensity of potential long term adverse effects really ramps up when we're talking about systemic therapy, chemotherapy. And then there's of course some radiation therapy specific elements that come up. So, for the chemotherapy bits of it, I really think this is going to be something that can be a complete multi-system affected intervention. So, anxiety, depression, our group has actually shown using some population resources that even suicidality can be increased among patients that have been treated for germ cell tumor. You know, really from the top down, tinnitus, hearing changes, those are things that we need to ask about at every appointment. Neuropathy, sexual health, that we kind of talked about, including ED (erectile dysfunction), vertigo, dizziness, Raynaud's phenomenon, these are kind of more the symptoms that I think we need to inquire about every time. And what we do here and I think at a lot of survivorship programs is use kind of a battery of validated instruments, germ cell tumor specific, platinum treated patient specific. So we use a combination of EORTC questions and PROMIS questions, which actually serves as like a review of systems for the patient, also as a research element. We review that and then depending on what might be going on, we can dig into that further, get them over to colleagues in audiology or psychology, et cetera. And then of course, screening for the hypertension, hyperlipidemia, metabolic syndrome with basically you or myself or somebody kind of like us serving, many times it's the role of the PCP, just making sure we're checking out, you know, CBC, CMP, et cetera, lipid parameters to screen for those kind of cardiac associated issues along with secondary malignancies. Dr. Pedro Barata: So that's super comprehensive and thorough. Thank you so much. Actually, I love how you break it down in a simple way. Two functions of the testes, produce testosterone and then, you know, the problem related to that is the hypogonadism, and then the second, as you mentioned, produce sperm and of course related to the fertility issues with that. So, let's start with the first one that you mentioned. So, you do cite that in your paper, around 5-10% of men end up getting, developing hypogonadism, maybe clinical when they present with symptoms, maybe subclinical. So, I'm wondering, for our audience, what kind of recommendations we would give for addressing that or kind of thinking of that? How often are you ordering those tests? And then, when you're thinking about testosterone replacement therapy, is that something you do immediately or are there any guidelines into context that? How do you approach that? Dr. Aditya Bagrodia: So, just a bit more on digging into it even in terms of the questions to ask, you know, "Do you have any decrease in sexual drive? Any erectile dysfunction? Are your morning erections still taking place? Has the ejaculate volume changed? Physically, muscle mass, strength? Have you been putting on weight? Have you noticed increase in body fat?" And sometimes this is complicated because there's some anxiety that comes along with a cancer diagnosis when you're 20, 30 years old, multifactorial, hair loss, hot flashes, irritability. Sometimes they'll, you know, literally they'll say, "You know, my significant other or partners noticed that I'm really just a little bit labile." So I think, you know, there's the symptoms and then checking, usually kind of a gonadal panel, FSH, LH, free and total testosterone, sex hormone binding globulin, that's going to be typically pretty comprehensive. So if you've got symptoms plus some laboratory work, and ideally that pre-orchiectomy testosterone gives you some delta. If they started out at an 800, 900, now they're 400, that might be a big change for them. And then, when you talk about TRT (Testosterone Replacement Therapy) recommendations, you know, Pedro, yourself, myself, we're kind of lucky to be at academic centers and we've got men's health colleagues that are ultra experts, but at a high level, I would say that a lot of the TRT options center around fertility goals. Exogenous testosterone treats the low T, but it does suppress gonadal function, including spermatogenesis. So if that's not a priority, they can just get TRT. It should be done under the care of a urologist, a men's health, an endocrinologist, where we're checking liver chemistries and CBCs and a PSA and so forth. If they're interested in fertility preservation, then I would say engaging an endocrinologist, men's health expert is important. There's medications even like hCG, Clomid, which works centrally and stimulate the gonadal access. Niche scenarios where they might want standard TRT now, and then down the way, 5, 7 years, they're thinking about coming off of that for fertility purposes, I think that's really where you want to have an expert involved because there's quite a bit of nuance there in recovery of actual spermatogenesis and so forth. To kind of summarize, you got to ask about it. Checking it is, is not overly complicated. We do a baseline pre-orchiectomy and at least once annually, you can tag it in with the tumor markers, so it's not an extra blood draw. And if they have symptoms of course, kind of developed, then we'll move that up in the evaluation. Dr. Pedro Barata: Got it. And you also touch base on the fertility angle, which is truly important. And I'm just curious, you know, a lot of times many of us might see one, two patients a year, right, and we forget these protocols and what we've got to do about that. And so I'm interested to hear your thoughts about when you think about fertility, and how proactive you get. In other words, who do you refer for the fertility clinic, for a fertility preservation program? You know, do all cases despite getting through orchiectomy or just the cases that you're going to, you know you're going to seek chemotherapy at some point? What kind of selection or it depends on the chemo, like how do you do that assessment about the referral for preservation program that you might have available at UCSD? Dr. Aditya Bagrodia: Yeah, I mean I feel really fortunate to sit on the NCCN Testis Cancer Guidelines. It's in there that fertility counseling should be discussed prior to orchiectomy. So 100% bring it up. If there are risk factors, undescended testicles, previous history of fertility concerns, atrophic contralateral testicle, anything on the ultrasound like microlithiasis in the contralateral testicle, you kind of wanna get it there. And then again, there's kind of niche scenarios where you're really worried, maybe get a semen analysis and it doesn't look that good, arrange for the time of orchiectomy to have onco-testicular sperm extraction from the, quote unquote, "normal" testis parenchyma. You know, I think you have to be kind of prepared to go that route and really make sure you're doing this completely comprehensively. So pre-orchiectomy all patients. Don't really push for it too hard if they've got a contralateral testicle, if they've had no issues having children. There's some cost associated with this, sperm banking still isn't kind of covered even in the context of men with cancer. If they've got risk factors, absolutely pre-orchiectomy. Pre-RPLND, even though the rates of ejaculatory dysfunction at a high-volume center should be low single digits, I'll still offer it. That'd be a real catastrophe if they were in that small proportion of patients and now they're going to be reliant on things like intrauterine insemination, where it becomes quite expensive. Pre-chemo, everybody. That's basically a standard these days where it should be discussed and it's kind of amazing currently, even if you don't have an accessible men's health fertility clinic, there are actually companies, I have no vested interest, Fellow is one such company where you can actually create an account, receive a FedEx semen analysis and cryopreservation kit, send it back in, and all CLIA certified, it's based out of California. The gentleman that runs it, is a urologist and very, very bright guy who's done a lot of great stuff for testis cancer. So, even for patients that are kind of in extremis at the hospital that kind of need to get going like yesterday, we still discuss it. We've got some mechanisms in place to either have them take a semen analysis over to our Men's Health clinic or send it off to Fellow, which I think is pretty cool and that even extends to some of our younger adolescent patients where going to a clinic and providing a sample might be tricky. So, I think bringing it up every stage, anytime there's an intervention that might be offered, orchiectomy, chemo, surgery, radiation, it's kind of incumbent on us to discuss it. Dr. Pedro Barata: Gotcha. That's super helpful. And you also touch base on another angle, which is the psychosocial angle around this. You mentioned suicidal rates, you mentioned anxiety, perhaps depression in some cases as well as chronic fatigue, not necessarily just because of the low testosterone that you can get, but also from a psychological perspective. I'm curious, what do the recommendations look like for that? Do these patients need to see a social worker or a psychologist, or do they need to answer a screening test every time they come to see us and then based on that, we kind of escalate, take the next steps according to that? Do they see a psychologist perhaps every so often? How should that be managed and addressed? Dr. Aditya Bagrodia: It's an excellent question and again, these can be rather insidious symptoms where if you don't really dig in and inquire, they can be glossed over. I mean, how easy to say, "Your markers look okay, your scans look okay. See you in six months," and keep it kind of brief. First off, I think bringing it up proactively and normalizing it, that, "This may be something that you experience. Many people do, you're not alone, there's nothing kind of wrong with you." I also think that this is an area where support groups can be incredibly useful. We host the Testicular Cancer Awareness Foundation support group here. They'll talk about chemo brain or just like a little bit of an adjustment disorder after their diagnosis. Support groups, I think are critical. As I mentioned, we have a survivorship program that's led by a combination of our med oncs, myself on the uro-onc side, as well as APPs, where we are systematically asking about essentially the whole litany of issues that may arise, including psychosocial, anxiety, depression, suicidality. And we've got a nice kind of fast path into our cancer center support services for these young men to meet with a psychologist. If that isn't going to be sufficient, they can actually see a psychiatrist to discuss medications and so forth. I do think that we've got to screen for these because, as anticipated from diagnosis, those first 2 years, we see a rise. But even 10, 15 years out, we note, compared to controls, that there is an increased level of anxiety, depression, suicidality that might not just take place at that initial acute period of diagnosis and treatment. Dr. Pedro Barata: Really well said. Super important. So I guess if I were to put all these together, with these really amazing advances in technology, we all know AI, some of us might be more or less aware of biomarkers coming up, including microRNA for example, and others, like as I think of all these potential long term complications for these patients, look at the future, I guess, can we use this as a way to deescalate treatment where it's not really necessary, as a way to actually prevent some of these complications? Like, how do we see where we're heading? As we manage testicular cancer, let's say, within the next 5 or 10 years, do you think there's something coming up that's going to be different from what we're doing things today? Dr. Aditya Bagrodia: Totally. I mean, I think it's as exciting as a time as there's ever been, you know, maybe notwithstanding circa 1970s when platinum was discovered. So microRNAs, which you mentioned, you know, there's a new candidate biomarker, microRNA-371. We are super excited here at UCSD. We actually have it CLIA-certified available in our lab and are ordering these tests for patients kind of in their acute stage, you know, stage one and surveillance, stage two, post-RPLND, receiving chemotherapy. And essentially this is a universal germ cell tumor specific biomarker, except for teratoma, suffice it to say 90% sensitive and specific. And I think it's going to change the way that we diagnose and manage patients. You know, pre-orchiectomy, that's pretty straightforward. Post-orchiectomy, maybe we can really decrease the number of CT scans that are done. Maybe we can identify those patients that basically have occult disease where we can intervene early, either with RPLND or single cycle chemo. Post-RPLND, identify the patients who are at higher risk of relapse that may benefit from some adjuvant therapy. In the advanced setting, look at marker decline for patients in addition to standard tumor markers. Can we modulate their systemic therapy? So, the international interest is largely on modifying things. There's really cool clinical trials that we have for stage one patients, that treatment would be prescribed based on a post-orchiectomy microRNA. I think the microRNAs are really exciting. Teratoma remains an outstanding question. I think this is where maybe ctDNA, perhaps some radiomics and advanced imaging processing and incorporating AI may allow us to safely avoid a lot of these post-chemo RPLNDs. And then identification using SNPs and so forth of who might be most susceptible to some of the cardiac toxicity, autotoxicity and personalizing things in that way as well. Dr. Pedro Barata: Super exciting, right, what's about to come? And I agree with you, I think it's going to change dramatically how we manage this disease. This has been a pleasure sitting down with you. I guess before letting you go, anything else you'd like to add before we wrap it up? Dr. Aditya Bagrodia: Yeah, first off, again, just want to thank you and ASCO for the opportunity. And it's easy enough to, I think, approach a patient with the testicular germ cell tumor as, "This is an easy case. We're just going to do whatever we've done. Go to the guidelines that says do X, Y, or Z." But there's so much more nuance to it than that. Getting it done perfectly, I think, is mandatory. Whatever we do is an impact on them for the next 50, 60, 70 years of their life. And I found the germ cell tumor community, people are really passionate about it. If you're ever uncertain, there's experts throughout the country and internationally. Ask somebody before you do something that you can't undo. I think we owe it to them to get it perfect so that we can really maximize the survivorship and the survival like we've been talking about. Dr. Pedro Barata: Aditya, thanks for sharing your fantastic insights with us on this podcast. Dr. Aditya Bagrodia: All right, Pedro. Fantastic. Appreciate the opportunity. Dr. Pedro Barata: And also, thank you to our listeners for your time today. I actually encourage you to check out Dr. Bagrodia's article in the 2025 ASCO Educational Book. We'll post a link to the paper in the show notes. Remember, it's free access online, and you can actually download it as well as a PDF. You can also find on the website a wealth of other great papers from the ASCO Educational Book on key advances and novel approaches that are shaping modern oncology. So with that, thank you everyone. Thank you, Aditya, one more time, for joining us. Thank you, have a good day. 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 today's speakers:        Dr. Pedro Barata @PBarataMD Dr. Aditya Bagrodia @AdityaBagrodia Follow ASCO on social media:        @ASCO on X (formerly Twitter)        ASCO on Bluesky       ASCO on Facebook        ASCO on LinkedIn        Disclosures:     Dr. Pedro Barata: Stock and Other Ownership Interests: Luminate Medical Honoraria: UroToday Consulting or Advisory Role: Bayer, BMS, Pfizer, EMD Serono, Eisai, Caris Life Sciences, AstraZeneca, Exelixis, AVEO, Merck, Ipson, Astellas Medivation, Novartis, Dendreon Speakers' Bureau: AstraZeneca, Merck, Caris Life Sciences, Bayer, Pfizer/Astellas Research Funding (Inst.): Exelixis, Blue Earth, AVEO, Pfizer, Merck  Dr. Aditya Bagrodia: Consulting or Advisory Role: Veracyte, Ferring

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UromigosLive 2025: Resumen de la sesión sobre cáncer de vejiga músculo-invasivo

The Uromigos

Play Episode Listen Later Nov 8, 2025 28:25

Los Dres Duran, Gómez de Liaño y Coca Membribes repasan el escenario perioperatorio en cáncer de vejiga músculo infiltrante. En cisplatino ineldgibles, KN905 es un ensayo transformativo en esta población única que hasta ahora había quedado apartada de los ensayos, y para los que no existía ningún tratamiento efectivo más allá de la cirugía. El rol de ctDNA es clave para entender cuál será el futuro respecto a la cirugía.

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GI Cancer ESMO 2025 Highlights: DYNAMIC-III, PEGASUS, STELLAR-303, MATTERHORN, FORTITUDE-101

Play Episode Listen Later Nov 3, 2025 19:20

In this episode of the Oncology Brothers podcast, we dived into the key takeaways from ESMO 2025, focusing on gastrointestinal (GI) malignancies. Join us as we welcomed Dr. Rachna Shroff, a GI medical oncologist from the University of Arizona, to discuss the latest studies and their implications for clinical practice. Episode Highlighted: •⁠ ⁠ctDNA in Colorectal Cancer: DYNAMIC-III and PEGASUS studies, examining the evolving role of ctDNA as a prognostic and potential predictive tool in early-stage colon cancer. •⁠ ⁠STELLAR-303: Learn about the promising results of immunotherapy in refractory MSI-stable colorectal cancer and the associated toxicities. •⁠ ⁠MATTERHORN: Updated data on durvalumab with FLOT in the perioperative setting is changing the standard of care for upper GI malignancies. •⁠ ⁠FORTITUDE-101 Study: FGFR2b target in metastatic gastric and GE junction adenocarcinoma. Tune in for an insightful discussion that highlights the latest advancements in oncology and their potential impact on patient care. Follow us on social media: •⁠ ⁠X/Twitter: https://twitter.com/oncbrothers •⁠ ⁠Instagram: https://www.instagram.com/oncbrothers •⁠ Website: https://oncbrothers.com/ Don't forget to check out our previous episodes for more insights on conference highlights, recent approvals, and treatment algorithms. #ESMO2025 #GIOcology #ctDNA #ColorectalCancer #Immunotherapy #OncologyBrothers #PrecisionMedicine

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Colorectal Cancer — An Interview with Dr John Strickler on Molecular Residual Disease Analysis

Play Episode Listen Later Oct 30, 2025 50:40

Featuring an interview from Dr John Strickler, including the following topics: Prognostic value of molecular residual disease (MRD) as detected by circulating tumor DNA (ctDNA) and optimal incorporation of MRD assays into the care of patients with colorectal cancer (0:00) Potential use of MRD assays for patients with microsatellite instability (MSI)-high localized colorectal cancer or those with delayed progression or metastatic disease (16:09) Tumor-informed MRD assays under clinical development (20:36) Predictive role of ctDNA in Stage III colon cancer treated with celecoxib; effect of low-dose aspirin on response to celecoxib in patients with PI3K pathway alterations (24:19) Case: A man in his late 50s with resected Stage IIA colon cancer (30:06) Case: A woman in her late 40s with Lynch syndrome and MSI-H colon cancer with a solitary, small hepatic metastasis (34:57) MRD as a future clinical trial endpoint for solid tumors; increasing incidence of colorectal cancer in younger people (40:24) Antibody-drug conjugates in the treatment of colorectal cancer (45:13) Perspectives on promising areas of clinical research in colorectal cancer (48:23) CME information and select publications

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Colorectal Cancer — An Interview with Dr John Strickler on Molecular Residual Disease Analysis (Companion Faculty Lecture)

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Play Episode Listen Later Oct 29, 2025 31:39

Featuring a slide presentation and related discussion from Dr John Strickler, including the following topics: Defining molecular residual disease (MRD); tumor-informed and tumor-naïve methods for assessing (0:00) GALAXY and BESPOKE CRC studies of a tumor-informed MRD assay to identify patients with localized colorectal cancer who have an increased risk of recurrence and those who are likely to benefit from adjuvant chemotherapy (6:56) Sustained circulating tumor DNA (ctDNA) clearance and disease-free survival outcomes for patients with localized colorectal cancer (13:21) DYNAMIC study of a ctDNA-guided approach to adjuvant chemotherapy for patients with Stage II colorectal cancer (16:17) ctDNA positivity and radiographic evidence of colorectal cancer (18:48) ctDNA-guided approaches to escalating or de-escalating adjuvant chemotherapy for patients with localized colorectal cancer (21:24) Predictive role of ctDNA assay results in Stage III colon cancer treated with celecoxib; low-dose aspirin for patients with Stage II to III colorectal cancer with a PI3K pathway alteration (26:02) CME information and select publications

273. Why One-Size-Fits-All Cancer Care Doesn't Work

Breast Cancer Conversations

Play Episode Listen Later Oct 26, 2025 49:36

Love the episode? Send us a text!Today's episode is going to challenge how you think about treatment. What if cancer care wasn't one-size-fits-all? What if every decision — from the drugs you take to the supplements you choose — was tailored to your own biology?My guest, Dr. John Oertle, Chief Medical Director at Envita Medical Centers, has spent over 25 years pioneering a truly personalized, integrative approach that merges precision oncology, functional medicine, and technology.We'll explore why some people respond to treatment while others don't, what circulating tumor DNA can tell us about recurrence, and how understanding environmental toxins and genetics can literally change your odds.

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GU Cancer ESMO 2025 Highlights: PSMAddition, Capitello-281, Potomac, Keynote-905, IMVigor011

Play Episode Listen Later Oct 23, 2025 22:47

In this episode of the Oncology Brothers podcast, we dive into the groundbreaking data presented at ESMO 2025, focusing on the GU landscape, particularly prostate and bladder cancer. Join us as we welcome Dr. Stephanie Berg, a GU medical oncologist from the Dana-Farber Cancer Institute, to discuss key studies and their implications for patient care. Episode Highlights: ⁠PSMAddition: Explore the benefits of lutetium PSMA in metastatic hormone-sensitive prostate cancer, including improved radiographic progression-free survival when combined with ADT and ARPIs. Capitello-281: Highlights the use of Capivasertib in patients with PTEN loss, showing significant improvements in radiographic PFS. Potomac: Examining the role of durvalumab + BCG in high-risk non-muscle invasive bladder cancer, and the promising results from the Keynote 905 study involving enfortumab and pembrolizumab. IMVigor011: Delved into showcasing how ctDNA-guided therapy with atezolizumab can improve survival outcomes. Stay tuned as we navigate the complexities of treatment options, side effects, and the importance of patient-centered decision-making in oncology. Follow us on social media: •⁠ ⁠X/Twitter: https://twitter.com/oncbrothers •⁠ ⁠Instagram: https://www.instagram.com/oncbrothers •⁠ Website: https://oncbrothers.com/ Don't forget to subscribe for more insights on treatment algorithms, FDA approvals, and conference highlights! #ESMO2025 #GUOncology #LutetiumPSMA #Enfortumab #BladderCancer #ProstateCancer #OncologyBrothers

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Episode 453: ESMO 2025 - IMvigor011

The Uromigos

Play Episode Listen Later Oct 20, 2025 37:27

Alex Wyatt joins us to discuss Tom's IMvigor011 data and the field of ctDNA

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Non-Small Cell Lung Cancer — 5-Minute Journal Club Issue 3 with Dr Aaron Lisberg: Defining the Role of TROP2-Directed Antibody-Drug Conjugates

Play Episode Listen Later Oct 20, 2025 24:48

Featuring an interview with Dr Aaron Lisberg, including the following topics: Efficacy and Safety of Datopotamab Deruxtecan (Dato-DXd) for Patients with Previously Treated EGFR-Mutated Advanced Non-Small Cell Lung Cancer (NSCLC): A Pooled Analysis of the TROPION-Lung01 and TROPION-Lung05 Trials (0:00) Ahn M-J et al. Efficacy and safety of datopotamab deruxtecan (Dato-DXd) in patients (pts) with previously-treated EGFR-mutated advanced non-small cell lung cancer (NSCLC): A pooled analysis of TROPION-Lung01 and TROPION-Lung05. ESMO Asia 2024;Abstract LBA7 Ahn M-J et al. A pooled analysis of datopotamab deruxtecan in patients with EGFR-mutated NSCLC. J Thorac Oncol 2025;[Online ahead of print]. Abstract Sacituzumab Tirumotecan for Previously Treated Advanced EGFR-Mutated NSCLC: Results from the Randomized OptiTROP-Lung03 Study (7:08) Fang W et al. Sacituzumab tirumotecan versus docetaxel for previously treated EGFR-mutated advanced non-small cell lung cancer: Multicentre, open label, randomised controlled trial. BMJ 2025;389:e085680. Abstract Zhang L et al. Sacituzumab tirumotecan (sac-TMT) in patients (pts) with previously treated advanced EGFR-mutated non-small cell lung cancer (NSCLC): Results from the randomized OptiTROP-Lung03 study. ASCO 2025;Abstract 8507. Combination of Dato-DXd and Immunotherapy as First-Line Therapy for Patients with Advanced NSCLC (13:12) Cuppens K et al. First-line (1L) datopotamab deruxtecan (Dato-DXd) + durvalumab ± carboplatin in advanced or metastatic non-small cell lung cancer (a/mNSCLC): Results from TROPION-Lung04 (cohorts 2 and 4). ESMO Targeted Anticancer Therapies Congress 2025;Abstract 8O. Okamoto I et al. TROPION-Lung07: Phase III study of Dato-DXd + pembrolizumab ± platinum-based chemotherapy as 1L therapy for advanced non-small-cell lung cancer. Future Oncol 2024;20(37):2927-36. Abstract Levy BP et al. TROPION-Lung08: Phase III study of datopotamab deruxtecan plus pembrolizumab as first-line therapy for advanced NSCLC. Future Oncol 2023;19(21):1461-72. Abstract Aggarwal C et al. AVANZAR: Phase III study of datopotamab deruxtecan (Dato-DXd) + durvalumab + carboplatin as 1L treatment of advanced/mNSCLC. World Conference on Lung Cancer (WCLC) 2023;Abstract P2.04-02. TROP2-Targeting Antibody-Drug Conjugates as Neoadjuvant and/or Adjuvant Therapy for Patients with Resectable NSCLC (19:08) A phase III, randomised, open-label, global study of adjuvant datopotamab deruxtecan (Dato-DXd) in combination with rilvegostomig or rilvegostomig monotherapy versus standard of care, following complete tumour resection, in participants with Stage I adenocarcinoma non-small cell lung cancer who are ctDNA-positive or have high-risk pathological features (TROPION-Lung12). NCT06564844 Cascone T et al. Perioperative durvalumab plus chemotherapy plus new agents for resectable non-small-cell lung cancer: The platform phase 2 NeoCOAST-2 trial. Nat Med 2025;31(8):2788-96. Abstract CME information and select publications

Lynch Syndrome Mortality in the Immunotherapy Era

Play Episode Listen Later Oct 11, 2025 26:49

JCO PO author Dr. Asaf Maoz at Dana-Farber Cancer Institute shares insights into article, “Causes of Death Among Individuals with Lynch Syndrome in the Immunotherapy Era.” Host Dr. Rafeh Naqash and Dr. Maoz discuss the causes of death in individuals with LS and the evolving role of immunotherapy. TRANSCRIPT Dr. Rafeh Naqash: Hello, and welcome to JCO Precision Oncology Conversations, where we bring you engaging conversations with authors of clinically relevant and highly significant JCOPO articles. I'm your host, Dr. Rafeh Naqash, podcast editor for JCO Precision Oncology and Associate Professor Medicine, at the OU Health Stephenson Cancer Center. Today, I'm super thrilled to be joined by Dr. Asaf Maoz, Medical Oncologist at Dana-Farber Cancer Institute, Brigham and Women's Hospital, and faculty at the Harvard Medical School, and also lead author on the JCO Precision Oncology article entitled "Causes of Death Among Individuals with Lynch Syndrome in the Immunotherapy Era." This publication will be a concurrent publication with an oral presentation at the annual CGA meeting. At the time of this recording, our guest's disclosures will be linked in the transcript. Asaf, I'm excited to welcome you on this podcast. Thank you for joining us today. Dr. Asaf Maoz: Thank you so much for highlighting our paper. Dr. Rafeh Naqash: Absolutely. And I was just talking to you that we met several years back when you were a trainee, and it looks like you've worked a lot in this field now, and it's very exciting to see that you consider JCOPO as a relevant home for some of your work. And the topic that you have published on is of significant interest to trainees from a precision medicine standpoint, to oncologists in general, covers a lot of aspects of immunotherapy. So, I'm really excited to talk to you about all of this. Dr. Asaf Maoz: Me too, me too. And yeah, I think JCOPO has great content in the area of cancer genetics and has done a lot to disseminate the knowledge in that area. Dr. Rafeh Naqash: Wonderful. So, let's get started and start off, given that we have hosts of different kinds of individuals who listen to this podcast, especially when driving from home to work or back, for the sake of making everything simple, can we start by asking you what is Lynch syndrome? How is it diagnosed? What are some of the main things to consider when you're trying to talk an individual where you suspect Lynch syndrome? Dr. Asaf Maoz: Lynch syndrome is an inherited predisposition to cancer, and it is common. So, we used to think that, or there's a general notion in the medical community that it is a rare condition, but we actually know now from multiple studies, including studies that look at the general population and do genetic testing regardless of any clinical phenotype, that Lynch syndrome is found in about 1 in 300 people in the general population. If you think about it in the United States, that means that there are over a million people living with Lynch syndrome in the United States. Unfortunately, most individuals with Lynch syndrome don't know they have Lynch syndrome at the current time, and that's where a lot of the efforts in the community are being made to help detect more individuals who have Lynch syndrome. Lynch syndrome is caused by pathogenic germline variants in mismatch repair genes, MLH1, MSH2, MSH6, or PMS2, or as a result of pathogenic variants in EPCAM that cause silencing of the MSH2 gene. Dr. Rafeh Naqash: Excellent. Thank you for that explanation. Now, one of the other things I also realized, similar to BRCA germline mutations, where you require a second hit for individuals with Lynch syndrome to have mismatch repair deficient cancers, you also require a second hit to have that second hit result in an MSI-high cancer. Could you help us understand the difference of these two concepts where generally Lynch syndrome is thought of to be cancers that are mismatch repair deficient, but that's not necessarily true for all cases as we see in your paper. Can you tease this out for us a little bit more? Dr. Asaf Maoz: Of course, of course. So, the germline defect is in one of the mismatch repair genes, and these genes are responsible for DNA mismatch repair, as their name implies. Now, in a normal cell, we think that one working copy is generally enough to maintain the mismatch repair machinery intact. What happens in tumors, as you alluded to, is that there is a second hit in the same mismatch repair gene that has the pathogenic germline variant, and that causes the mismatch repair machinery not to work anymore. And so what happens is that there is formation of mutations in the cancer cell that are not present in other cells in the body. And we know that there are specific types of mutations that are associated with defects in mismatch repair mechanisms, and those are associated a lot of times with frameshift mutations. And we have termed them ‘microsatellites'. So there are areas in the genome that have repeats, for example, you know, if you have AAAA or GAGA, and those areas are particularly susceptible to mutations when the mismatch repair machinery is not working. And so we can measure that with DNA microsatellite instability testing. But we can also get a sense of whether the mismatch repair machinery is functioning by looking at protein expression on the surface of cancer cells and by doing immunohistochemistry. More recently, we're also able to infer whether the mismatch repair machinery is working by doing next-generation sequencing and looking at many, many microsatellites and whether they have this DNA instability in the microsatellites. Dr. Rafeh Naqash: Excellent explanation. As a segue to what you just mentioned, and this reminds me of some work that one of my good friends, collaborators, Amin Nassar, whom you also know, I believe, had done a year and a half back, was published in Cancer Cell as a brief report, I believe, where the concept was that when you look at these mismatch repair deficient cancers, there is a difference between NGS testing, IHC testing, and maybe to some extent, PCR testing, where you can have discordances. Have you seen that in your clinical experience? What are some of your thoughts there? And if a trainee were to ask, what would be the gold standard to test individuals where you suspect mismatch repair deficient-related Lynch syndrome cancers? How would you test those individuals? Dr. Asaf Maoz: We do sometimes see discordance, you know, from large series, the concordance rate is very high, and in most series it's over 95%. And so from a practical perspective, if we're thinking about the recommendation to screen all colorectal cancer and all endometrial cancer for mismatch repair deficiency, I think either PCR-based testing or immunohistochemistry is acceptable because the concordance rate is very high. There are rare cases where it is not concordant, doing multiple of the tests makes sense at that time. If you think about the difference between the tests, the immunohistochemistry looks at protein expression, which is a surrogate for whether there is mismatch repair deficiency or not, right? Because ultimately, the mismatch repair deficiency is manifested in the mutations. So if the PCR does not show microsatellite instability and now NGS does not show microsatellite instability, the IHC may be a false positive. At the end of the day, the functional analysis of whether there are actually unstable microsatellites either by PCR or by NGS is what I would consider more informative. But IHC again is an excellent test and concordant with those results in over 95% of cases. Now there is also an issue of sampling. It's possible that there's heterogeneity within the tumor. We published a case in JCOPO about heterogeneity of the mismatch repair status, and that was both by immunohistochemistry, but also by PCR. So there are some caveats and interpreting these tests does require some expertise, and I'm always happy to chat with trainees or whoever has an interesting or challenging case. Dr. Rafeh Naqash: Thanks again for that very easy to understand explanation. Now going to management strategies, could you elaborate a little bit upon the neo-adjuvant data currently, or the metastatic data which I think more people are familiar with for immunotherapy in individuals with MSI-high cancers? Dr. Asaf Maoz: Yeah, that's an excellent question and obviously a very broad topic. Individuals with Lynch syndrome typically develop tumors that are mismatch repair deficient or microsatellite unstable. And we have seen over the last 15 years or so that these tumors, because they have a lot of mutations and because these mutations are very immunogenic, we have seen that they respond very well to immunotherapy. And this has been shown across disease sites and has been shown across disease settings. And for that reason, immunotherapy was approved for MSI-high or mismatch repair deficient cancer regardless of the anatomic site. It was the first tissue-agnostic approval by the FDA in 2017. And so there are exciting studies both in the metastatic setting where we see individuals who respond to immunotherapy for many years, and one could wonder whether their cancer is going to come back or not. And also in the earlier setting, for example, the Cercek et al. study in the New England Journal from Sloan Kettering, where they showed that neoadjuvant immunotherapy can cause durable responses for rectal cancer that is mismatch repair deficient. And in that series, the patients did not require surgery or radiation, which is standard of care for rectal cancer otherwise. And there's also exciting data in the adjuvant space, as was presented in ASCO by Dr. Sinicrope, the ATOMIC study, and many more efforts to bring immunotherapy into the treatment landscape for individuals with MSI-high cancer, including individuals with Lynch syndrome. Dr. Rafeh Naqash: A lot of activity, especially in the neo-adjuvant and adjuvant space over the last two years or so. Now going to the actual reason why we are here is your study. Could you tell us why you looked at this idea of patients who had Lynch syndrome and died, and the reasons for their death? What was the thought that triggered this project? Dr. Asaf Maoz: As we were talking about, we now know that immunotherapy really has changed the treatment landscape for individuals with Lynch syndrome, and that most cancers that individuals with Lynch syndrome do have this mismatch repair deficiency. But we also know that individuals with Lynch syndrome can develop tumors that do not have mismatch repair deficiency, and we call them mismatch repair proficient or microsatellite stable. And there was a series from Memorial Sloan Kettering showing that in colorectal cancer, about 10% of the tumors that individuals with Lynch syndrome developed did not have mismatch repair deficiency. In addition to that, we anecdotally saw that some of our patients with Lynch syndrome died of causes that were not mismatch repair deficient tumors. We wanted to see how that has changed since immunotherapy was approved in a tissue-agnostic manner, meaning that we could look at this regardless of where the cancer started, because we would anticipate that if the tumor was mismatch repair deficient, the patient would be able to access immunotherapy as standard of care. Dr. Rafeh Naqash: Thank you. And then you looked at different aspects of correlations with regards to individuals that had an MSI-high cancer with Lynch syndrome or an MSS cancer with Lynch syndrome. Could you elaborate on some of the important findings that you identified as well as some of the unusual findings that perhaps we did not know about, even though the sample size is limited, but what were some of the unique things that you did identify through this project? Dr. Asaf Maoz: The first question was what cause is leading to death in individuals with Lynch syndrome? And we had 54 patients that we identified that had died since the approval of immunotherapy in 2017, 44 of which died of cancer-related causes. And when we looked at cancer-related causes of death, we wanted to know how many of those were due to mismatch repair deficient tumors versus mismatch repair proficient tumors or MS-stable tumors. And we found, somewhat surprisingly, that 43% of patients in our cohort actually died of tumors that were microsatellite stable or mismatch repair proficient, meaning of tumors that are not typically associated with Lynch syndrome. This is not entirely surprising as a cause of death because we know that immunotherapy does not typically work for tumors that are microsatellite stable. And so in the metastatic setting, there are much less cases of durable remissions with treatment. But it was helpful to have that figure as an important benchmark. There are previous studies about causes of death in Lynch syndrome, and particularly from the Prospective Lynch Syndrome Database in Europe. Those have provided really important information about cause of death by cancer site, but they typically don't have mismatch repair status and are more difficult to interpret in that regard. They also don't include a large number of individuals who have PMS2 Lynch syndrome, which is the most common, but least penetrant form of Lynch syndrome. Dr. Rafeh Naqash: As far as the subtype of pathogenic germline variants is concerned, did you notice anything unusual? And I've always had this question, and you may know more about this data, is: In the bigger context of immunotherapy, does the type of the pathogenic germline variant for Lynch syndrome associated MSI-high cancers, does that impact or have an association with the kind of outcomes, how soon a cancer progresses or how many exceptional responders perhaps with MSI-high cancers actually have a certain specific pathogenic germline variant? Dr. Asaf Maoz: That's an excellent question, and certainly we need more data in that space. We know that the type of germline mutation, or the gene in which there is a germline pathogenic variant, determines to a large degree the cancer risk, right? So we know that individuals who have germline pathogenic variants in MLH1 or MSH2 have a much higher colorectal cancer risk than, for example, PMS2. We know that for PMS2, the risks are more limited to colorectal and endometrial, and may be lower risk of other cancers. We also know that, you know, the spectrum of disease may change based on the pathogenic germline variants. For example, individuals who have MSH2 associated Lynch syndrome have more risk of additional cancers in other organs like the urinary tract and other less common Lynch-associated tumors. The question about response to therapy is one where we have much less information. There are studies that are trying to assess this, but I don't think the answer is there yet. Some of the non-clinical data looks at how many mutations there are based on the pathogenic variant and what the nature of those mutations are, whether they're more frameshift or others. But I think we still need more clinical data to understand whether the response to immunotherapy differs. It's also complicated by the fact that the immunotherapy landscape is changing, especially in the metastatic setting, now with the approval of combination ipilimumab and nivolumab for first-line treatment of colorectal cancer that is microsatellite unstable. But in our study, we did find that, as you would expect, there is an enrichment in MS-stable cancers among those with PMS2 Lynch syndrome. Again, our denominator is those who died, right? So this is not the best way to look at the question whether this is overall true, that is more addressed by the study that Sloan Kettering published. But we do see, as we would anticipate, that there are more microsatellite stable cancers among those with PMS2 Lynch syndrome that died. Dr. Rafeh Naqash: A lot to uncover there for sure. This study and perhaps some of the other work that you're doing is slowly advancing our understanding of some of these concepts. So I'd like to shift gears to a couple of provocative questions that I generally like to ask. The first is, in your opinion, and you may or may not have data to back this up, which is okay, and that's why we're having a conversation about it. In your opinion, do you think the type or the quality of the neoantigen is different based on the pathogenic germline variant and a Lynch syndrome associated MSI-high cancer? Dr. Asaf Maoz: I think there are some data out there that, you know, I can't cite off the top of my mind, but there are some data out there that suggest that that may be the case. I think the key question is the quality, right? I think that whether these differences that are found on a molecular level also translate to a clinical difference in response is something that is unknown at this moment. Some people hypothesize that if the tumor has less neoantigens, there's less of a response to immunotherapy. But I think we really need to be careful before making those assertions on a clinical level. I do think it's a really important question that needs to be answered, among others because, you know, in the colorectal space, for example, where we have both the option of doing ipilimumab with nivolumab and the option of doing pembrolizumab, we don't really know which patients need the CTLA-4 blockade versus which patients can receive PD-1 blockade alone and avoid the potential excess toxicity of the CTLA-4 blockade. There are a lot of interesting questions there that still need to be answered. And of course, individuals with Lynch syndrome are just a fraction of those individuals who have MSI-high cancer. So there's also the question about whether non-Lynch syndrome associated MSI-high cancer responds differently to immunotherapy than Lynch syndrome associated MSI-high cancer. A lot of very interesting questions in the field for sure. Dr. Rafeh Naqash: Absolutely. My second question is more about trying to understand the role of ctDNA, MRD monitoring in individuals with Lynch syndrome. If somebody has a germline, you know, Lynch syndrome MSI-high cancer, when you do a tumor-informed ctDNA assessment, what do you capture generally there? Because, and this question stems from a discussion I've had with somebody regarding EGFR lung cancer, since I treat individuals with lung cancer, and the concept generally is that even if the tissue showed EGFR, but for MRD monitoring, when you do a barcoded sequence of different tumor specific mutations, it's not actually the EGFR that they track in the blood when they do ctDNA assessment. But from a Lynch syndrome standpoint, if you have a germline, right, which is the first hit, and then you have the somatic in the tumor, which is the second hit, are you aware or have you tried to look into this where what is exactly being followed if one had to follow MRD in a Lynch syndrome MSI-high colorectal cancer? Dr. Asaf Maoz: I think a lot of the MRD assays are proprietary, and so we don't receive information about what the mutations that are being tracked are. In general, the idea is to track mutations that we would not expect to disappear as part of resistant mechanisms. We want these to be truncal mutations. We want these to be mutations in which resistance is not expected to result in reversion mutations. But what specifically is being tracked is something that I don't know because these assays, the tumor-informed ones, are proprietary, and we don't get the results regarding specific mutations. When it's circulating tumor DNA that is not necessarily tumor-informed, we do get those results, but that is less so about the specific selection of mutations. Dr. Rafeh Naqash: Thank you for clarifying that question to some extent, of course, as you said, we don't know a lot, and we don't know what we don't know. That's the most important thing that I've learned in the process of understanding precision medicine and genomics, and it's a very fast-paced evolving field. Last question related to your project, what is the next step? Are you planning any next steps as a bigger multicenter study or validation of some sort? Dr. Asaf Maoz: There are two big questions that this study raises. One, is this true across multiple other sites, right? Because this is a single center study, and we really need additional centers to look at their data and validate whether they are also seeing that a substantial portion of deaths in individuals with Lynch syndrome are attributable to mismatch repair proficient cancer. The other question is whether we can look at specifically MSI-high cancer versus MS-stable cancer and understand what the mortality rate for each of those are. From a clinical perspective, it's important to counsel individuals with Lynch syndrome about general cancer screening outside of mismatch repair deficient tumors and to understand that there is also a risk of mismatch repair proficient tumors and that treatment for those tumors would be different. There's a lot of work to be done in the future. Another major area of need is to see whether tumors that are microsatellite stable can be sensitized to immunotherapy, and that is beyond the Lynch syndrome field, but that is something that certainly would benefit these individuals with Lynch syndrome who develop mismatch repair proficient cancer. Dr. Rafeh Naqash: That's very interesting to hear, and we'll look forward to seeing some of those developments shape in the next few years. Now, I'd like to spend a minute, minute and a half on you specifically as a researcher, clinician, scientist. Could you briefly highlight - because I remember meeting you several years back as a trainee, with your interest in genomics, computational research - could you briefly tell us what led you to hereditary cancer syndromes based on your research and work? What are some of the things that you learned along the way that other early career investigators can perhaps take lessons from? Dr. Asaf Maoz: Big questions there, thanks for asking. I got interested in the field of hereditary cancer syndromes when I came to the United States and started doing lab research in Stephen Gruber's lab at the time at USC. He's now at City of Hope. And my interest was originally looking at immunotherapy and immunology, but I went to the case conferences where we were learning about individuals with hereditary cancer, and those were kind of earlier days where we were still trying to figure out how to test and what the implications for these individuals would be. And through fellowship, I was also very interested in that, and I did my senior fellowship years with Dr. Yurgelun here at Dana-Farber, who is the director of the Lynch Syndrome Center. And I I think it's the combination between being able to treat individuals based on precision medicine and what the germline mutation is, but also the ability to prevent cancer and to develop strategies to intercept cancer early that is really appealing to me in this field. It's also a great field to be in because it's a small field. If you come to the CGA-IGC meeting, you'll be able to interact with everyone. Everyone is super collaborative, super nice, and I really recommend it to trainees. The CGA-IGC annual meeting is really a great opportunity to learn more and experience some of the advancement specifically in the GI hereditary space. Lessons for trainees. I think there are a lot of lessons that I could think about, but I think finding strong and supportive mentors is one of the things that has helped me most. I think that just having close relationship with your mentor, having frequent discussions and honest discussions about what is feasible, what is going to make a difference for your patients and your research and what you want to focus on is really important. And so I think if I had to choose one thing, I would say choose a mentor that you trust, that you feel you have a good relationship with, and that has the availability to support you. Dr. Rafeh Naqash: Thank you so much for those insightful comments, and thank you for sharing with us your journey, your project, and some of your interesting thoughts on this concept of hereditary cancers. Hopefully, we'll see more of this work being published in JCOPO through your lab or work from others. Dr. Asaf Maoz: Thank you so much. I appreciate the opportunity to be here. Dr. Rafeh Naqash: Thank you for listening to JCO Precision Oncology Conversations. Don't forget to give us a rating or review and be sure to subscribe so you never miss an episode. You can find all ASCO shows at ASCO.org/podcasts. 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.

Episode 65. Circulating Tumor DNA in DLBCL with Dr. Ash Alizadeh and Dr. David Russler-Germain

Blood Cancer Talks

Play Episode Listen Later Sep 24, 2025 53:08

In this episode of Blood Cancer Talks, hosts Eddie, Ashwin, and Raj welcome two distinguished experts to explore the cutting-edge field of circulating tumor DNA (ctDNA) in B-cell lymphomas. Dr. David Russler-Germain, a lymphoma clinician from Siteman Cancer Centre at Washington University in St. Louis, returns as a familiar voice to the podcast audience. Joining him is Dr. Ash Alizadeh, the Moghadam Family Professor of Medicine, Oncology, and Hematology at Stanford University and leader of the Cancer Genomics Program at Stanford Cancer Institute. Dr. Alizadeh has been instrumental in advancing our understanding of lymphomagenesis and lymphoma genetics over the past two decades, pioneering multiple ctDNA techniques that are revolutionizing cancer care. Together, they discuss the transformative potential of ctDNA technology in B-cell lymphomas, particularly DLBCL, covering everything from the technical evolution of biomarker detection to groundbreaking clinical data that may reshape how we monitor and treat these aggressive cancers. Key Discussion Topics1. Genetic Heterogeneity in B-Cell LymphomasComplex genetic landscape of DLBCLImplications for treatment strategiesNeed for personalized approaches 2. Clinical Need for ctDNA in LymphomaWhy ctDNA is needed in aggressive lymphomas:Curative vs. non-curative treatment settingsLimitations of current PET imagingAdditional prognostic information beyond imagingRisk stratification capabilitiesPotential to avoid overtreatmentTherapy adaptation opportunities 3. Challenges in Lymphoma MRD AssessmentWhy lymphoma MRD is more complex than other hematologic malignancies:Differences from acute leukemias, CLL, and myelomaTechnical challenges specific to lymphoid tumorsLower circulating tumor burden compared to liquid tumors 4. ClonoSEQ TechnologyMechanism: Immunoglobulin sequencing approachAdvantages: Established platform with regulatory approvalDisadvantages: Limited sensitivity in peripheral blood, requires adequate tumor sample 5. CAPP-Seq TechnologyFull Name: Cancer Personalized Profiling by Deep SequencingInnovation: Developed ~10 years ago by Dr. Alizadeh's groupMechanism: Targeted sequencing of cancer-specific mutationsAdvantages: High sensitivity, personalized approach 6. PhasED-Seq TechnologyEvolution: Next-generation advancement of CAPP-SeqKey Improvements: Enhanced sensitivity and specificityTechnical Advances: Phased variant detection Clinical Data Highlights1. Remission Assessment by ctDNA in LBCL on 5 prospective studies of frontline anthracycline-based chemo-immunotherapy: https://pubmed.ncbi.nlm.nih.gov/40802906/2. Prospective validation of end of treatment ctDNA-MRD by PhasED-Seq in DLBCL patients from HOVON-902 clinical trial: https://ascopubs.org/doi/10.1200/JCO.2025.43.16_suppl.70003. Korean data on prognostic utility of ctDNA: https://ashpublications.org/blood/article/142/Supplement%201/69/501573

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