ASCO Guidelines

• Postmastectomy Radiation Therapy: ASTRO-ASCO-SSO Guideline

  Dr. Kathleen Horst, Dr. Rachel Jimenez, and Dr. Yara Abdou discuss the updated guideline from ASTRO, ASCO, and SSO on postmastectomy radiation therapy. They share new and updated recommendations on topics including PMRT after upfront surgery, PMRT after neoadjuvant systemic therapy, dose and fractionation schedules, and delivery techniques. They comment on the importance of a multidisciplinary approach and providing personalized care based on individual patient characteristics. Finally, they review ongoing research that may impact these evidence-based guidelines in the future. Read the full guideline, “Postmastectomy Radiation Therapy: An ASTRO-ASCO-SSO Clinical Practice Guideline” at www.asco.org/breast-cancer-guidelines" TRANSCRIPT This guideline, clinical tools, and resources are available at www.asco.org/breast-cancer-guidelines. Read the full text of the guideline and review authors’ disclosures of potential conflicts of interest in the Journal of Clinical Oncology, https://ascopubs.org/doi/10.1200/JCO-25-01747  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. Kathleen Horst, expert panel chair from Stanford University; Dr. Rachel Jimenez, expert panel vice chair from Massachusetts General Hospital; and Dr. Yara Abdou, ASCO representative from the University of North Carolina, authors on "Postmastectomy Radiation Therapy: An American Society for Radiation Oncology, American Society of Clinical Oncology, and Society of Surgical Oncology Clinical Practice Guideline." Thank you for being here today, Dr. Horst, Dr. Jimenez, and Dr. Abdou. Dr. Kathleen Horst: Thank you for having us. Brittany Harvey: And then just 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. Horst, Dr. Jimenez, and Dr. Abdou who have 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. Then to dive into the content that we are here today to talk about, Dr. Horst, could you start us off by describing what prompted the update for this joint guideline between ASTRO, ASCO, and SSO, and what is the scope of this 2025 guideline on postmastectomy radiation therapy? Dr. Kathleen Horst: Thank you. This joint guideline was last updated in 2016. Over the past decade, the treatment of breast cancer has evolved substantially. Newer systemic therapy regimens have increasingly personalized treatment based on tumor biology, and local therapy management has explored both the de-escalation of axillary surgery and more abbreviated courses of radiation therapy. Given these advances, it was important to revisit the role of postmastectomy radiotherapy in this modern era of breast cancer therapy. This updated guideline addresses four key questions, including postmastectomy radiation therapy after upfront surgery as well as after neoadjuvant systemic therapy. It also reviews the evolving role of various dose and fractionation schedules and optimal treatment techniques and dose constraints. Brittany Harvey: Excellent. I appreciate that background, Dr. Horst. So then, next, Dr. Jimenez, I would like to review the recommendations of this guideline across those four key questions that Dr. Horst just mentioned. So first, what does the panel recommend for PMRT for patients who received initial treatment with mastectomy? Dr. Rachel Jimenez: The panel provided pretty strong consensus that patients with positive lymph nodes or patients with large tumors involving the skin or the chest wall should receive postmastectomy radiation. However, the panel also recognized that the omission of postmastectomy radiation may be appropriate for select patients who have positive lymph nodes and have an axillary lymph node dissection if they have a low nodal burden and other favorable clinical or pathologic features. For patients without lymph node involvement at the time of surgery and no involvement of the skin or chest wall, postmastectomy radiation was not advised by the panel. Brittany Harvey: Understood. It is helpful to understand those recommendations for that patient population. Following that, Dr. Abdou, what are the key recommendations for PMRT for patients who received neoadjuvant systemic therapy before mastectomy? Dr. Yara Abdou: When we think about PMRT after neoadjuvant treatment, the key point is that the initial stage of presentation still matters a lot. So for example, if a patient comes in with more advanced disease, say a large primary tumor, like a clinical T4, or more extensive nodal disease, like an N2 or N3 disease, those patients should get PMRT, no matter how well they respond to neoadjuvant therapy, because we know it reduces the risk of recurrence and that has been shown pretty consistently. On the other hand, if there are still positive lymph nodes after neoadjuvant treatment, basically residual nodal disease, PMRT is also strongly recommended because the risk of local-regional recurrence is much higher in that setting. The gray area is the group of patients who start with a lower burden of nodal disease, such as N1 disease, but then become node negative at surgery. For those patients, we tend to individualize the decision. So if the patient is young or has triple-negative disease, or if there is a lot of residual disease in the breast even though the nodes are cleared, then radiation is probably helpful. But if everything has melted away with pCR in both the breast and the nodes, then it may be safe to omit PMRT in those patients. For patients with smaller tumors and no nodal involvement to begin with, like a clinical T1-T2 N0, if they are still node negative after neoadjuvant treatment, then PMRT is generally not recommended because their baseline recurrence risk is low. And finally, if the margins are positive and cannot be re-excised, then PMRT is recommended after neoadjuvant therapy. Brittany Harvey: Yes, those distinctions are important for appropriate patient selection. So then, Dr. Horst, we have just reviewed the indications for PMRT, but for those patients who receive PMRT, what are the appropriate treatment volumes and dose fractionation regimens? Dr. Kathleen Horst: The guideline addresses coverage of the chest wall and regional nodes with a specific discussion of the data regarding internal mammary nodal irradiation, which has been an area of controversy over many years. The guideline also reviews the data exploring moderate hypofractionation, or shorter courses of radiation therapy. The task force recommends utilizing moderate hypofractionation for the majority of women requiring postmastectomy radiation, which is likely to have a large impact on clinical practice. This recommendation is based on the evolving data demonstrating that a 3-week course of radiotherapy after mastectomy provides similar oncologic outcomes and minimal toxicity for most patients compared to the standard 5-week treatment course. Brittany Harvey: Thank you for reviewing that set of recommendations as well. So then, Dr. Jimenez, to wrap us up on the key questions here, what delivery techniques are recommended for treating patients who receive PMRT? Dr. Rachel Jimenez: So this portion of the guideline is likely to be most helpful for radiation oncologists because it represents the most technical part of the guideline, but we do believe that it offers some important guidance that has, to this point, been lacking in the postmastectomy radiation setting. So first, the panel recommends that all patients should undergo 3-dimensional radiation planning using CAT scan based imaging, and this includes contouring. So contouring refers to the explicit identification, using a drawing interface on the CAT scan imaging, by the radiation oncologist to identify the areas that are targeted to receive radiation, as well as all of the nearby normal tissues that could receive unintended radiation exposure. And we also provide radiation oncologists in the guideline with suggestions about how much dose each target tissue should receive and what the dose limits should be for normal tissues. Additionally, we make some recommendations regarding the manner in which radiation is delivered. So for example, we advise that when conventional radiation methods are not sufficient for covering the areas of the body that are still at risk for cancer, or where too high of a dose of radiation would be anticipated to a normal part of the body, that providers employ a technique called intensity modulated radiation therapy, or IMRT. And if IMRT is going to be used, we also advise regular 3-dimensional imaging assessments of the patient's body relative to the treatment machine to ensure treatment fidelity. When the treatments are delivered, we further advise using a deep inspiration breath-hold technique, which lowers the exposure to the heart and to the lungs when there is concern for cardiopulmonary radiation exposure, and again, that image guidance be used along with real-time monitoring of the patient's anatomy when those techniques are employed. And then finally, we advise that patients receiving postmastectomy radiation utilize a bolus, or a synthetic substance placed on the patient's skin to enhance radiation dose to the superficial tissue, only when there is involvement of the skin with cancer or other high-risk features of the cancer, but not for every patient who receives postmastectomy radiation. Brittany Harvey: Understood. And then, yes, you just mentioned that section of the guideline is probably most helpful for radiation oncologists, but I think you can all comment on this next question. What should all clinicians, including radiation oncologists, surgical oncologists, medical oncologists, and other oncologic professionals, know as they implement all of these updated recommendations? Dr. Rachel Jimenez: So I think one of the things that is most important when we consider postmastectomy radiation and making recommendations is that this is a multidisciplinary panel and that we would expect and encourage our colleagues, as they interpret the guidelines, to employ a multidisciplinary approach when they are discussing each individual patient with their surgical and medical oncology colleagues, that there is no one size fits all. So these guidelines are intended to provide some general guidance around the most appropriate techniques and approaches and recommendations for the utilization of postmastectomy radiation, but that we recognize that all of these recommendations should be individualized for patients and also represent somewhat of a moving target as additional studies, both in the surgical and radiation oncology realm as well as in the systemic therapy realm, enter our milieu, we have to adjust those recommendations accordingly. Dr. Kathleen Horst: Yeah, I would agree, and I wanted to comment as a radiation oncologist, we recognize that local-regional considerations are intertwined with systemic therapy considerations. So as the data evolve, it is critical to have these ongoing updates in a cross-disciplinary manner to ensure optimal care for our patients. And as Dr. Jimenez mentioned, these multidisciplinary discussions are critical for all of us to continue to learn and understand the evolving recommendations across disciplines but also to individualize them according to individual patients. Dr. Yara Abdou: I could not agree more. I think from a medical oncology perspective, systemic therapy has gotten much better with adjuvant CDK4/6 inhibitors, T-DM1, capecitabine, and immune therapy. So these are all newer adjuvant therapies, so the baseline recurrence risks are lower than what they were in the trials that established PMRT. So the absolute benefit of radiation varies more now, so smaller for favorable biology but still relevant in aggressive subtypes or with residual disease. So it is definitely not a one-size-fits-all. Brittany Harvey: Yes, I think it is important that you have all highlighted that multidisciplinary approach and having individualized, patient-centric care. So then, expanding on that just a little bit, Dr. Abdou, how will these guideline recommendations affect patients with breast cancer? Dr. Yara Abdou: So basically, reiterating what we just talked about, these guidelines really move us towards personalized care. So for patients at higher risk, so those with larger tumors, multiple positive nodes, or residual nodal disease after neoadjuvant therapy, PMRT remains essential, consistently lowering local-regional recurrence and improving survival. But for patients at intermediate or lower risk, the recommendations support a more selective approach. So instead of a blanket rule, we now integrate tumor biology, response to systemic therapy, and individual patient factors to decide when PMRT adds meaningful benefit. So the impact for patients is really important because those at high risk continue to get the survival advantage of radiation while others can be spared the unnecessary treatment and side effects. So in short, we are aligning PMRT with modern systemic therapy and biology, making sure each patient receives the right treatment for their situation. Brittany Harvey: Absolutely. Individualizing treatment to every patient will make sure that everyone can achieve the best outcomes as possible. So then, Dr. Jimenez, to wrap us up, I believe Dr. Horst mentioned earlier that data continues to evolve in this field. So in your opinion, what are the outstanding questions regarding the use of PMRT and what are you looking to for the future of research in this space? Dr. Rachel Jimenez: So there are a number of randomized phase III clinical trials that are either in active accrual or that have reported but not yet published that are exploring further de-escalation of postmastectomy radiation and of axillary surgery. And so we do not yet have sufficient data to understand how those two pieces of information integrate with each other. So for example, if you have a patient who has a positive lymph node at the time of diagnosis and forgoes axillary surgery aside from a sentinel lymph node biopsy, we do not yet know that we can also safely forgo radiation entirely in that setting. So we expect that future studies are going to address these questions and understand when it is appropriate to simultaneously de-escalate surgery and radiation. Additionally, there is a number of trials that are looking at ways in which radiation could be omitted or shortened. So there is the RT CHARM trial, which has reported but not yet published, looking at a shorter course of radiation. And so we do make recommendations around that shorter course of radiation in this guideline, but we anticipate that the additional data from the RT CHARM study will provide further evidence in support of that. Additionally, there is a study called the TAILOR RT trial, which looks at forgoing postmastectomy radiation in patients who, to Dr. Abdou's point, have a favorable tumor biology and a low 21-gene recurrence score. And so we are going to anticipate the results from that study to help guide who can selectively forgo postmastectomy radiation when they fall into that favorable risk category. So there are a number of questions that I think will help flesh out this guideline. And as they publish, we will likely publish a focused update on that information to help provide context for our colleagues in the field and clarify some of these recommendations to suit the latest data. Brittany Harvey: Absolutely. We will look forward to those de-escalation trials and ongoing research in the field to build on the evidence and look for future updates to this guideline. So I want to thank you for your work to update these guidelines, and thank you for your time today, Dr. Horst, Dr. Jimenez, and Dr. Abdou. Dr. Rachel Jimenez: Thank you. Dr. Yara Abdou: Thank you. Dr. Kathleen Horst: Thank you. Brittany Harvey: And then 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/breast-cancer-guidelines. You can also find many of our guidelines and interactive resources in the free ASCO Guidelines app, which is 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.  

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• Geriatric Assessment Global Guideline

  Dr. Cris Bergerot and Dr. Enrique Soto join the podcast to discuss the new global guideline on geriatric assessment. This guideline provides evidence-based, resource-stratified recommendations across the basic, limited, and enhanced settings. Dr. Bergerot and Dr. Soto discuss who should receive a geriatric assessment, the role of geriatric assessment, which elements of geriatric assessment can help predict adverse outcomes, and how a geriatric assessment is used to guide care and make treatment decisions. They comment on the importance of this guideline worldwide, and the impact of this guideline for a wide range of clinicians, patients, researchers, policymakers, and health administrators.   Read the full guideline, “Geriatric Assessment: ASCO Global Guideline” at www.asco.org/global-guidelines." TRANSCRIPT This guideline, clinical tools, and resources are available at www.asco.org/global-guidelines. Read the full text of the guideline, view clinical tools and resources, and review authors’ disclosures of potential conflicts of interest in the JCO Global Oncology,       https://ascopubs.org/doi/10.1200/GO-25-00276       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. Cris Bergerot from OncoClínicas & Co and Dr. Enrique Soto from the University of Colorado, co-chairs on “Geriatric Assessment: ASCO Global Guideline”. Thank you for being here today, Dr. Bergerot and Dr. Soto. Dr. Cris Bergerot: Thank you. Dr. Enrique Soto: Thanks for the invitation, Brittany. Brittany Harvey: And then 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. Bergerot and Dr. Soto who have joined us here today, are available online with the publication of the guideline in JCO Global Oncology, which is linked in the show notes. So then to jump into the guideline here, Dr. Soto, could you start by providing an overview of the scope and the purpose of this global guideline on geriatric assessment? Dr. Enrique Soto: Of course, Brittany. So, this guideline comes from a request from the global oncology community and from the geriatric oncology community, who is very interested in making sure that geriatric oncology recommendations that are used in the United States can be adopted and used globally. So, this was a very highly rated topic when we had our call for proposals for guidelines, and that’s why we decided to do this. The idea of this guideline is to provide resource-stratified recommendations for the use of geriatric assessments and interventions in older adults with cancer across different settings, right? And that these guidelines can be applied by clinicians working in low- and middle-income countries, but also, in a way, by clinicians working in community settings where the availability of resources may be limited. And the idea of these recommendations is to help clinicians evaluate older people with cancer better and also understand which interventions can be implemented with the resources they have and which interventions have a bigger bang for the buck, so to speak. And as all evidence-based, stratified guidelines that ASCO conducts, we stratified resources as basic, limited, or enhanced. And that means resources that go from those that provide the greatest benefits for patients in terms of outcomes to those that are evidence-based but provide additional additive benefits. And those resource-stratified recommendations can be found in the ASCO website as to how these guidelines are developed, and that’s pretty standard for most resource-stratified guidelines. Brittany Harvey: Great. I appreciate that background and the impetus for this guideline, and thank you for providing that resource-stratified framework of basic, limited, and enhanced. I think that helps provide context for the guideline recommendations here. So then, Dr. Bergerot, I’d like to next review the key recommendations of this guideline across the four clinical questions that the guideline addresses. So, across those settings, the basic, limited, and enhanced settings, what is the role of geriatric assessment in older adults with cancer to inform specific interventions? Dr. Cris Bergerot: I think this is one of the most important points, so let’s break it down. First off, who should actually receive the geriatric assessment? And the recommendation is clear. All patients aged 65 and older who are being considered for systemic cancer therapy should undergo a geriatric assessment. Now, depending on the available resources, for example, in basic setting, a quick screening may be enough, but in enhanced setting, a comprehensive geriatric assessment is encouraged. And for our next question, in which elements of the geriatric assessment can help predict poor outcomes, the core domains to focus on include things like physical function, comorbidities, polypharmacy, cognition, nutrition, social support, and psychological health. And there are also validate tools like the G8, the CGA, and the CARG that can be used depending on the setting and resources available. Now, talking about how we actually use the geriatric assessment to guide care, the assessment results can guide interventions to reduce treatment-related toxicities and maintain the patient functions. So, even in basic settings, the result can help guide those adjustments or identify the need for supportive care. And in more resource settings, we can implement more tailored intervention based on those findings. And finally, for our fourth question: How can geriatric assessment help guide treatment decisions? So, GA can influence decisions about how aggressive treatment should be, help clarify goals of care, and determine whether a curative or palliative approach makes the most sense. And again, even in settings with limited resources, a simplified GA can still provide meaningful guidance. Brittany Harvey: Great. Thank you, Dr. Bergerot, for that high-level overview of the recommendations of this guideline. So then, following that, Dr. Soto, which geriatric assessment tools and elements should clinicians use to predict adverse outcomes for older patients receiving systemic therapy across the basic, limited, and enhanced settings? Dr. Enrique Soto: Yeah, so that is an excellent question because it’s something that people want to know, right? When people start developing a geriatric oncology clinic, one of the first things they want to know is which tools should I use. And we hope that this guideline will provide some clarity regarding this. So, our overarching recommendation is that every patient, regardless of the level of resources, should receive some sort of geriatric assessment. And that geriatric assessment can go from a simple screening tool, such as the G8 tool, which is available online and very easy to do, and that can be done in basic settings, to a more sophisticated geriatric assessment. The important thing, and what we emphasize in the guideline, is that regardless of the tool you use, it should include those high-priority domains that are associated with outcomes in older adults with cancer. And those include an assessment of physical function, of cognition, emotional health, comorbidities, polypharmacy, nutrition, and social support. In addition to that, an important thing that the guideline does is endorse the recommendation from our parent guideline, the guideline from high-income settings, the practical geriatric assessment, which is a tool that was actually developed by the ASCO Geriatric Oncology Group, which is a self-administered tool that people can use to evaluate their patients in a prompt and fast manner. And what we actually did for this guideline is include the validation of the various tools included in the practical geriatric assessment in the five most widely spoken languages in the world, including Hindi, Chinese, Spanish, and French, and Portuguese. And so, most of these tools are validated in these languages. So, we believe that the practical geriatric assessment is a tool that can be utilized across settings and that doesn’t require a lot of resources. I think an important future step is making sure that we get the practical geriatric assessment translated into various languages, and we’re working with the ASCO team in getting that done. Brittany Harvey: That’s an excellent point. And yes, we’ll hope to have the practical geriatric assessment translated into more languages. And that tool is available linked in the guideline itself, and we’ll also provide a link for listeners in the show notes of this episode (Practical Geriatric Assessment). So then, following that, Dr. Bergerot, in resource-constrained settings, what general life expectancy data should clinicians use to estimate mortality and inform treatment decision-making? Dr. Cris Bergerot: So, in basic and limited resource environments, you might not have access to every tool or specialist, but you can still make informed and thoughtful decisions. So, what the guideline recommends is to start with population-level life expectancy tables. These are available through the WHO Global Health Observatory, and they offer useful starting points. And if available, clinicians should also look for country-specific or regional survival data. That kind of local information can be even more relevant to your patient population. The clinical judgment is also key here, and it becomes even more powerful when it’s guided by the patient’s geriatric assessment results. And when possible, use age- and comorbidity-adjusted models, like the Lee index or tools from the ePrognosis. This can help refine estimates of mortality risk and also inform how aggressive treatment should be. Brittany Harvey: Absolutely. I appreciate you providing those specifics as well. So then, following that, Dr. Bergerot mentioned this a little bit earlier, but Dr. Soto, how should geriatric assessment be used to guide management of older patients with cancer across the basic, limited, and enhanced settings? Dr. Enrique Soto: Yeah, and again, that’s another important focus, right? Because if we assess things and then don’t do anything about them, then why even assess them, right? And in many settings, people say, “Well, I don’t have the tools to provide the interventions that these patients actually need.” And a very significant part of building this guideline was coming up with a resource-stratified and evidence-based way in which to prioritize which interventions provide most benefits for older adults with cancer. And so, for each level and each domain, we have a series of interventions that have been stratified according to importance and evidence base, and that is actually one of the coolest features of the guideline. We included a table, and then we have for each of the domains, including falls, functional status, weight loss, et cetera, what are the interventions that oncologists can do in their clinical visit without needing a lot of resources, including providing some specific information, giving some recommendations to patients, to more high-level things that can be done when the healthcare system allows it, such as working with a nutritionist, providing supplements, testing for particular cognitive impairments, et cetera. So, I encourage people to take a look at that table. It was really a lot of work putting that table together, and that table has specific recommendations for each setting, and I think people will find it very useful. Brittany Harvey: Absolutely. That table certainly contains a lot of information that’s very helpful for clinicians. I think it’s important to call out those tailored interventions to improve care and quality of life for every patient. So then, we’ve just reviewed all of the recommendations in this guideline. So, I’d like to ask you, Dr. Bergerot, in your opinion, what should clinicians know as they implement these recommendations across resource levels? Dr. Cris Bergerot: I would say that clinicians should remember that even a brief geriatric assessment can make a meaningful difference. You don’t need a full suite of tools to improve quality of care, but clinicians should tailor all the tools that are available in their local context and always keeping in mind the core geriatric domains that we have mentioned in the very beginning of our podcast. And let’s be clear, the goal of the assessment isn’t just to gather data, as Enrique mentioned; it’s to use this information to guide treatment decision and also to improve outcomes. And whenever possible, clinicians should engage interdisciplinary teams that might include nurse, psychologist, social workers, community health workers, or anyone who can help address the patient’s broader needs. And flexibility really matters. So, especially in settings with limited access to specialists or diagnostics, we should prioritize what is feasible and what will truly help our patients during their journey. And above all, we should keep this in mind that equity in care delivery is essential. Just because resources are limited doesn’t mean we can’t deliver age-sensitive and even patient-centered care. Brittany Harvey: Definitely. That multidisciplinary care that you mentioned is key, and also thinking about what is feasible across every resource level to provide optimal care for every single patient. So then, to expand on that just a little bit and to wrap us up, Dr. Soto, what is the impact of this guideline for older adults with cancer globally? Dr. Enrique Soto: Well, what we hope this guideline will lead to is to a boom in geriatric oncology worldwide, right? That is our final goal. And what we want is for clinicians interested in starting a geriatric oncology program or setting up a geriatric oncology clinic to use these guidelines in order to justify the interventions that they’re going to do, to pick the important partners they need for their multidisciplinary team, to choose the tools that they’re going to implement. And then, with that, to present this to leaders in their hospitals, leaders in their healthcare system so that they can start these clinics that will ultimately lead to better outcomes for older adults with cancer. So, I encourage people to view this as high-quality, evidence-based recommendations that are done by a group of experts and with a thorough review of the literature and also based on our parent guidelines. The fact that these guidelines are resource-stratified does not by any mean signify that they’re of less quality or that the recommendations that are included in those are not proven to improve outcomes, cancer-specific and also general outcomes, in older adults with cancer. Another thing that I think these guidelines could do in the future is motivate researchers in low- and middle-income countries to fill in the gaps that we have identified in these guidelines. We’ve made it very clear across the guidelines where evidence is lacking. And I think that this should prompt researchers across the globe to start trying to fill in these gaps with high-quality research. And finally, I also think that this is a call for policymakers, health administrators, and people interested in public health to start scaling up resources so that places with basic resources can eventually become places with more sophisticated resources. And I think this does not only apply to low- and middle-income countries, but also to community oncologists in the US who may be facing resource constraints. And I think that these guidelines can help them stratify and understand what things should be implemented first and how to scale up. So yeah, that’s the dream that with this guideline, more people will start implementing geriatric oncology around the globe and that ASCO will continue to be a leader in setting the stage for what should be done in geriatric oncology and for improving care to older adults with cancer, regardless of where they live. Brittany Harvey: Absolutely. This guideline is wide-reaching and has important impacts worldwide. So, I want to thank you both so much for the huge amount of work you took to develop this evidence-based guideline, and thank you for joining me on the podcast today, Dr. Bergerot and Dr. Soto. Dr. Cris Bergerot: Thank you so much. Dr. Enrique Soto: Thank you for the invitation. It was a pleasure. Brittany Harvey: And finally, thank you to our listeners for tuning in to the ASCO Guidelines podcast. To read the full guideline, go to www.asco.org/global-guidelines. You can also find many of our guidelines and interactive resources in the free ASCO Guidelines app, which is available in the Apple App Store or the Google Play Store. If you have enjoyed what you’ve heard today, please rate and review the podcast and be sure to subscribe so you never miss an episode. The purpose of this podcast is to educate and to inform. This is not a substitute for professional medical care and is not intended for use in the diagnosis or treatment of individual conditions. Guests on this podcast express their own opinions, experience, and conclusions. Guest statements on the podcast do not express the opinions of ASCO. The mention of any product, service, organization, activity, or therapy should not be construed as an ASCO endorsement.  

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• Oncology Medical Homes: ASCO-COA Standards Update

  Ms. Kim Woofter and Dr. John Cox discuss the latest updates to the evidence-based standards on oncology medical homes developed by ASCO and COA. These standards serve as the basis for the ASCO Certified program. They share the new and revised standards around topics including the culture of safety and just culture in oncology practice, geriatric assessment and geriatric assessment-guided management, and multidisciplinary team management. They expand on the importance of these standards for clinicians and oncology practices to ensure every patient receives optimal care. Read the complete standards, “Oncology Medical Homes: ASCO-Community Oncology Alliance Standards Update” at www.asco.org/standards. TRANSCRIPT These standards, clinical tools, and resources are available at www.asco.org/standards. Read the full text of the guideline and review authors’ disclosures of potential conflicts of interest in the JCO Oncology Practice, https://ascopubs.org/doi/10.1200/OP-25-00498 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 Ms. Kim Woofter, a registered nurse in practice leadership and administration from AC3 Inc in South Bend, Indiana, and Dr. John Cox, a medical oncologist and adjunct faculty member from UT Southwestern Medical Center in Dallas, Texas, co-chairs on "Oncology Medical Homes, American Society of Clinical Oncology – Community Oncology Alliance Standards." Thank you for being here today, Ms. Woofter and Dr. Cox. Dr. John Cox: You bet. Ms. Kim Woofter: Thank you. Brittany Harvey: And then before we discuss these standards, I'd just like to note that ASCO takes great care in the development of its standards and ensuring that the ASCO Conflict of Interest Policy is followed for each guidance product. The disclosures of potential conflicts of interest for the expert panel, including Dr. Cox and Ms. Woofter, who have joined us here today, are available online with the publication of the standards in JCO Oncology Practice, which is linked in the show notes. So then, to dive into what we're here today to talk about, Dr. Cox, could you start us off by explaining what prompted an update to these ASCO-COA standards and what the scope of this update is? Dr. John Cox: Well, the ASCO-COA standards relative to defining and outlining Oncology Medical Home were initially published four or five years ago. At the time, we planned a regular update of the standards. So, in essence, this is a planned update. The whole program is built on the idea of continuous improvement. So, this update and future updates are prompted and defined by our literature, our science, the science of care delivery, and new developments and insights gained from studies and evaluations of care delivery methods, and informed by the practice. These standards are in place to underpin a program of care delivery by ASCO, the ASCO Certified, and as practices engage in this program, we are learning from them. The whole idea is to enlarge and improve how patients are cared for in practice. Brittany Harvey: Absolutely. It's great to have this iterative process to continue to review the evidence and update these standards that form the basis for ASCO Certified. So then, following that background, Ms. Woofter, I'd like to review the key points of the revised standards for our listeners. First, how do the revised standards address the culture of safety and just culture in oncology practice? Ms. Kim Woofter: I think safety is of utmost importance to all of us. So let me say that first and foremost. And what we know in oncology is our QOPI standards already address safety in the infusion suite process. So, safe delivery of chemotherapy agents and antineoplastics. It also talked about near misses and medication errors - absolutely essential, for sure. But what we need to do is look at a more systemic approach to safety because we know is processes throughout an organization they’ll often cause you trouble. To do that, we know you need what we call a just culture, which is a very common term in today's workplace. But what it really means is it's a culture of open reporting of any potential for error, any potential for malfunction, and it can be in any place in the organization. So, what we are doing in our new standard is to say, look at your entire processes throughout the organization, and approach that in an open-minded way so that people don't feel scared to report things, and it's a really positive approach to intervening early and making sure that errors don't occur anywhere in the workplace. Brittany Harvey: Taking that systemic approach to look at overarching processes seems really key to ensuring safety in oncology practices. So then, the next new section, Dr. Cox, what are the new OMH standards surrounding geriatric assessment and geriatric assessment–guided management? Dr. John Cox: This is a challenging update for our standards. As many folks in practice recognize, there is a deep literature on recognizing the geriatric population in oncology. Geriatric - those in my age group over age 60, 65 - make up the majority of cancer patients in this country. And yet, there are many aspects that should be taken into account as you address treatment decisions in this population. ASCO's recognized this. There has been a guideline previously on geriatric assessment. It's been updated, and we really felt it's time that it be incorporated in any iteration of what oncology care delivery means, so, within the oncology medical home standards. In short, what the standard outlines is that practices that are using these standards, that are using this benchmark, should have a geriatric assessment for patients within the practice care and use that information to guide management. Now, the standard allows wide exploration of how practices meet this standard, but it really puts on the table that if an oncology practice in the United States, or anywhere in the world really, is adhering to a good practice, that they're going to include and recognize these assessments in practice. Ms. Kim Woofter: I would like to add that this is a highly discussed and reviewed standard. Many of our community practices were concerned that they would have the time and manpower to perform this assessment. We all know it reduces toxicities if done appropriately at treatment planning, and so the outcomes are better. And we really left it to the practices to define how they're going to implement it, understanding that it will evolve to every single patient, but maybe day one, it was a step approach to be able to implement. So, I was really proud of the team that - the expert panel - that said, okay, let's step into this, but we do think it's essential. Brittany Harvey: Absolutely. It's important to recognize that practices may have limited resources and time, and implementing it in the way that makes sense for them allows this to be a standard that can be used in practice. And it's great to have this geriatric assessment guideline integrated into these standards to improve care delivery. And we can provide a link to that guideline in the show notes of this episode as well (Practical Assessment and Management of Vulnerabilities in Older Patients Receiving Systemic Cancer Therapy: ASCO Guideline Update). So then, following that section of the standards, Ms. Woofter, how do the updated standards now address multidisciplinary team management? Ms. Kim Woofter: Well, we address multidisciplinary team management in a more comprehensive way in the updated standard. We always thought that that was a critical piece when doing treatment planning, and we kind of highlighted it in a bigger way, understanding that not everybody has the same resources available at the time of treatment planning. And again, this was a much-discussed standard, in that that multidisciplinary team approach doesn't necessarily have to be in a tumor board or a prospective analysis of every case. It is actually a conversation between specialists, between the surgeon and pathologist and the medical oncologist. And we are saying, do what works for you, but we know that that team approach, every specialty coming to the table at time of treatment planning, truly provides better outcomes for our patients. And so we kind of reiterated that, understanding that again, it doesn't have to be a formal tumor board, but it has to be a dialogue between specialties. And we highlighted that again in the new standard. Brittany Harvey: Open communication of all team members is really critical to providing optimal care. Dr. Cox, I'd like to ask you, in your view, how will these updated standards impact both clinicians and oncology practices? Dr. John Cox: Well, our whole goal with discussing a comprehensive care model for oncology practice is to have a benchmark, to have an iteration of what good oncology care delivery looks like. So, our hope is that practices, all practices, whether you're participating formally in ASCO Certified, the marquee quality program for ASCO, or if you are simply running a practice or a team within an academic environment or institutional environment, these standards are to apply across the board wherever oncology is practiced - that you can look at these standards as a benchmark and compare what you are doing in your practice and where are the gaps. So ideally, we drive improved care across the board. You know, one thing I've learned over the last couple of years as ASCO Certified is getting spun up and using and implementing these standards, is practices are remarkably innovative. We've learned a lot by seeing how pilot practices have met the standards, and that's gone into informing how we can improve care delivery for all of our practices and, importantly, for the team members who are delivering this care. The fourth rail of burnout and the like is inefficiency that occurs in practice. And when you know you've got a good, spun-up, effective team, less burnout, less stress for practice. I hope clinicians and oncology practices will use this to help drive improvements in their care and gain insight into how they can approach practice problems in a better way. Kim, you've been leading practices. I have to ask you, your thoughts in leaning into this question. Ms. Kim Woofter: I think very well said, I will say that first. And what I love about this is for practice leaders who are new to our ecosystem, if you will, they need a playbook. It's “Where do I begin?” And Dr. Cox said it very well, no one does everything perfectly day one, but it's a step-by-step self-assessment approach to say, “How do I get to this gold standard?” I really love the standards because they are very comprehensive, everything from treatment planning to end of life. So it's the spectrum of the care we deliver in the oncology setting. So as a leader and an administrator, it is the standard I want all of my departments to understand, adhere to, and engage, and be excited about. We now have a baseline approach, and what's even more important, these standards will evolve as our intelligence evolves, as literature evolves. It's a system that will always grow and change, and that's what we love about it. It's not a one-and-done. So, I'm very proud of the fact that it gives them a road map. Brittany Harvey: Yes, these evidence-based standards provide a critical foundation for practices in ASCO Certified, for those team members you mentioned, and for quality improvement beyond just those individuals and practices as well. So then finally, to wrap us up, Ms. Woofter, what do these revised standards mean for patients receiving cancer treatment? Ms. Kim Woofter: Well, I think that's the most exciting part, is we all do this for our patients and the best outcomes for our patients and the best treatment plans for our patients and their families. And these standards, that is their core, their absolute core. So what it's going to do for a patient is they can say, “Am I at a practice that implements ASCO standards?” And if that is a ‘yes’, there's a confidence that, “I am in an evidence-based medicine thinking practice, I have a team around me, they will care for me not only at time of treatment planning but at the time of end of life, they will help me be part of that decision-making, and they will give me resources available to me in my community.” So, it is a true comprehensive approach. As a patient, I have that comfort, that it is bigger than just a great doctor. It is a great team. As a patient, that would be very important to me and important to my family. That being said, Kim Woofter would love every practice to be ASCO Certified. Understanding that that isn't feasible day one, just to know that the practice is implementing and engaging the standards is the great place to start. Every patient can't go to an ASCO Certified practice day one, but our dream would be that everyone would adhere to those standards, engage those standards, believe them, educate their staff on what they mean, so that patient outcomes and satisfaction will be optimized for everyone. The other piece to this that we all know is if you give evidence-based medicine, cost-effective, efficient care, it's better for the system as a whole. And I'm not saying that insurance is our driver - certainly patient outcomes are our driver - but the whole ecosystem of oncology benefits when you do the right thing. Dr. John Cox: It's hard to add anything to Kim's good statements, but I just highlight that this whole area began with the patient-centered medical home, and every time we've met, patients and how we deliver care to patients is top of mind. I think that reflects our community. It reflects oncology as a whole. I don't know any oncologist or practice that is focused on anything else as the prime goal. Brittany Harvey: That's what I was just going to say. The ultimate goal here is to provide patient-centered care across where every single patient is receiving treatment and at every stage of that treatment. So, I want to thank you both so much for your work to update these standards, to review the evidence, and discuss with the experts on the panel to come up with the solutions that will help drive quality improvement across care delivery. So, thank you for that, and thank you for your time today, Dr. Cox and Ms. Woofter. And finally, thank you to all of our listeners for tuning in to the ASCO Guidelines podcast. To read the complete standards, go to www.asco.org/standards. You can also find many of our standards and interactive resources in the free ASCO Guidelines app, which is available on the Apple App Store or the Google Play Store. If you have enjoyed what you've heard today, please rate and review the podcast, and be sure to subscribe so you never miss an episode. The purpose of this podcast is to educate and to inform. This is not a substitute for professional medical care and is not intended for use in the diagnosis or treatment of individual conditions. Guests on this podcast express their own opinions, experience, and conclusions. Guest statements on the podcast do not express the opinions of ASCO. The mention of any product, service, organization, activity, or therapy should not be construed as an ASCO endorsement.

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• Therapy for Stage IV NSCLC With Driver Alterations: ASCO Living Guideline Update 2025.1 Part 2

  Dr. Joshua Reuss joints that podcast to discuss the latest changes to the living guideline on stage IV NSCLC with driver alterations. He discusses the new evidence for NSCLC with EGFR mutations and NRG1 fusions and how this impacts the latest recommendations from the panel. He shares ongoing research that the panel will review in the future for further updates to this living guideline, and puts the updated recommendations into context for clinicians treating patients with stage IV NSCLC. Read the full living guideline update “Therapy for Stage IV Non-Small Cell Lung Cancer With Driver Alterations: ASCO Living Guideline, Version 2025.1” 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-25-01061 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. Joshua Reuss from Georgetown University, co-chair on "Therapy for Stage IV Non–Small Cell Lung Cancer With Driver Alterations: ASCO Living Guideline, Version 2025.1." It's great to have you here today, Dr. Reuss. Dr. Joshua Reuss: Thank you. Happy to be here. Brittany Harvey: And then 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. Reuss, 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 to dive into what we're here today to talk about, Dr. Reuss, 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 prompted this latest update to the recommendations? Dr. Joshua Reuss: Yes, thank you. It's very important that we have living guidelines that are continuously updated. We obviously don't live in a static environment where things are non-changing, and we really need to apply the most up-to-date and current evidence to treat our patients with the most effective strategies, the most groundbreaking strategies. And so to have guidelines that can be disseminated, particularly these ASCO guidelines, to treating providers is incredibly important. So, with any of these updates, we review ongoing studies, published work, for the quality of evidence to see if it's something that warrants making adjustments to our guidelines or at least incorporating the information so that providers can review it and incorporate this into their own personal decision-making. So in this particular update, we reviewed evidence particularly pertaining to EGFR-mutated non–small cell lung cancer and non–small cell lung cancer harboring an NRG1 fusion. Brittany Harvey: Yes, certainly there's a lot of new evidence in the advanced non–small cell lung cancer field, and so we appreciate the panel's continuous review of this evidence. So then you just mentioned two separate areas where the panel reviewed new evidence. So starting with that first one, what updated evidence did the panel review on first-line treatment options for patients with EGFR alterations, and how did this impact the recommendations? Dr. Joshua Reuss: Yes, so advanced EGFR-mutated non–small cell lung cancer, at least with classical activating alterations - that is our exon 19 deletions and our exon 21 L858R mutations - is something that's really evolved rapidly in the last few years. You know, for many years, we basically, for the frontline treatment setting, were saying, "Okay, we have a targeted therapy, osimertinib. We're going to give that, and we're going to see what effect we can get out of that," with, you know, a median time of duration of treatment response averaging around 18 months, knowing that there are some that that's a lot longer and some that are a lot shorter. But recently, we've seen a lot of data emerging on combination strategies. The guideline has already been updated to incorporate two of these combinations: osimertinib with chemotherapy based off of the FLAURA2 trial, and then the combination of amivantamab with lazertinib based off of the MARIPOSA trial. And that was data on progression-free survival that was published and led to those particular recommendations. Now, more recently, we've seen data come out in smaller, randomized studies for other combinations. And more recently, we reviewed the RAMOSE study. So this was a phase II, open-label, randomized trial for patients with tyrosine kinase inhibitor–naive and really, treatment-naive advanced EGFR-mutated non–small cell lung cancer harboring one of these two classical EGFR alterations, randomized to either osimertinib alone or osimertinib with the combination of ramucirumab, which is an anti-VEGF agent. There's been a lot of data, preclinical and clinical, for the role of VEGF blockade, particularly in EGFR-mutated non–small cell lung cancer, so exploring the combination of this for synergy in the frontline setting really made a lot of sense. So again, this was a phase II trial that randomized patients prospectively to one of these two regimens. The population here is really what we typically see with EGFR-mutated non–small cell lung cancer, predominantly a younger population - median age on this study was 65 - predominantly female - 71% female - and predominantly nonsmokers. Now, what this study showed was that at a median follow-up of 16.6 months, the progression-free survival favored the combination arm with a median progression-free survival of 24.8 months with the combination of osimertinib plus ramucirumab versus 15.6 months for osimertinib alone, for a hazard ratio of benefit of 0.55. The landmark one- and two-year endpoints for progression-free survival also favored the combination arm, and response rates were relatively comparable between groups, with overall adverse events being more frequent in the combination group, specifically high blood pressure, proteinuria, and epistaxis, which are our common adverse events related to VEGF-blocking agents. So, it's good to see data in this space. Now, of note, though, this was a phase II study, so not a phase III level of evidence. In addition, when looking at the population, this was a randomized, multicenter study, but it was a US-only population. There was also some imbalance in the number of visits between arms, so the combination arm was seen more frequently than the arm that got osimertinib alone. Now, the imaging assessments were no different, but obviously this could lead to potential confounding, at least in timing of awareness of potential side effects and and things being brought to the attention of investigators. So very promising data here, but because, you know, of this being a phase II study, this actually led to no changes in the guideline at this time. Brittany Harvey: Understood. Yes, as you mentioned prior, it's important to understand the full body of evidence and to review the trials even when it doesn't impact the recommendations. Dr. Joshua Reuss: And I will say that, you know, there is an ongoing phase III study looking at a very similar combination. It's the phase III ECOG-ACRIN trial of the combination of osimertinib plus bevacizumab versus osimertinib alone in this specific population. So, you know, I think we will see phase III–level data for a combination of VEGF with osimertinib, but again, promising phase II data that did not lead to a change in the recommendation at this time. Brittany Harvey: Absolutely. We'll look forward to that ongoing trial to learn more about combination in this patient population. So then moving to that second patient population that you mentioned earlier where the panel reviewed evidence, what is the updated evidence and recommendation for patients with NRG1 fusions? Dr. Joshua Reuss: Yeah, so this was an exciting update that we made more recently with this unique iteration of the living guidelines. So, NRG1 fusions, this is perhaps a newer kid on the block in terms of driver alterations that has been known to be identified in non–small cell lung cancer among other solid tumors. It is very rare, occurring in less than 1% of solid tumors, but something that we know is a unique oncogenic pathway that can lead to oncogenesis and cancer development, including in non–small cell lung cancer. So up until now, unfortunately, there have not been targeted therapies that target this unique alteration. It's somewhat different than other driver alterations where there's a top-level signaling change in a protein. This is more of a ligand alteration that then alters, that then enables activation of more classical pathways, but again, through upregulation of a unique ligand. So a slightly different pathway but something that we know should be able to be targeted to promote patient survival for those with NRG1 fusions. So the therapy here is a therapy called zenocutuzumab. It's an IgG1 bispecific antibody against HER2 and HER3. So it prevents the downstream dimerization and signaling that occurs as a result of this NRG1 fusion and upregulation of the NRG1 signal. This was, as you can imagine with a rare alteration, a large phase II registrational study that examined this in advanced solid tumors containing the NRG1 fusion. This is the NRG1 registrational trial. And this study enrolled patients with advanced solid tumors who had progressed on prior therapy. Patients were treated with zenocutuzumab 750 milligrams IV every two weeks. Among 158 response-evaluable solid tumor patients, the response rate was 30%, median duration of response of 11.1 months, and a median progression-free survival of 6.8 months. Now, in those with non–small cell lung cancer, that made up 93 response-evaluable patients, very similar outcomes there: a response rate of 29%, median duration of response of 12.7 months, and a median progression-free survival of 6.8 months. This therapy did appear to be well tolerated. The most common higher-grade emergent side effects - grade 3 or higher - were anemia occurring in 5% and elevated liver numbers occurring in 3%. So this is a subsequent-line study, so this led to the updated recommendation that clinicians may offer zenocutuzumab in the subsequent-line setting for patients with advanced non–small cell lung cancer who harbor NRG1 fusions. So I think this does speak toward the incredible importance of next-generation sequencing and molecular testing for patients, particularly to include testing that looks at the RNA. These large fusions can sometimes be very challenging to detect on DNA sequencing platforms alone, so it's important to, if you have a high level of suspicion for an alteration like this, perhaps some of the mucinous adenocarcinomas where it's been challenging to find a driver alteration, and it's someone who is a never-smoker, really would want to include molecular testing that assesses the RNA level and not just the DNA. Brittany Harvey: Absolutely. It's important to have all the biomarkers available so that clinicians are able to use that to inform their decision-making. So then, given these changes in the guideline, what should clinicians know as they implement this latest living guideline update? And how do these changes impact patients? Dr. Joshua Reuss: Yeah, I think talking in reverse order of what we just discussed here, there is a new guideline update for NRG1 fusions. So I think making sure that that's being evaluated, that clinicians are testing for that and really looking for that result that should be incorporated in in most next-generation large sequencing assays to get that result, but it's very important that that is not overlooked now that we do have a therapy that's available in the subsequent-line setting, though it is important to note that patients with NRG1 fusions, at least the limited data that there is suggests that the efficacy to standard chemoimmunotherapy regimens is overall poor. So physicians unfortunately might be facing this question for second-line therapy in patients with NRG1 fusions sooner rather than later. For the former, for EGFR-altered non–small cell lung cancer and how do we incorporate VEGF-containing regimens into these patients? Our guideline top-level update did not change based off of review of this new study, but it's important for clinicians to know what other combinations may exist. You know, there are phase III studies looking at this combination in the frontline setting. And of course, there is data on other bispecific molecules that incorporate VEGF in the subsequent-line setting, particularly a combination that includes the VEGF/PD-1 bispecific antibody ivonescimab that's being studied in the HARMONi-A trial for patients with EGFR-mutated advanced non–small cell lung cancer, for which we hope to get some more definitive data in the coming months. Brittany Harvey: Definitely. And then you've just mentioned a few ongoing trials where we're looking for evidence to inform future updates. But thinking beyond that, into the future, what is the panel examining for future updates to this living guideline? Dr. Joshua Reuss: It's a very exciting time to be in the world of treating advanced non–small cell lung cancer, particularly patients with driver alterations, because there is so much evolving data that's changing our practice in real time, again highlighting the importance of these living guideline updates. I'd say there's many things that we're excited to see. You know, a lot of the combination regimens in EGFR-mutated non–small cell lung cancer for which there are approvals and current recommendations in our guideline, particularly osimertinib plus chemotherapy and amivantamab plus lazertinib - those are the two approved combination strategies in the front line - we are now seeing the emergence of overall survival data for those combinations. So obviously that is something that's going to be very important for the committee to review and incorporate into guideline updates. There are several new therapies coming down the road for other driver populations. We recently saw an approval for taletrectinib for ROS1 fusion–positive non–small cell lung cancer, so it's going to be important that the committee reviews the data and the publications regarding that therapy. And then there are other novel therapies that we're looking to see updated data on. There are multiple antibody-drug conjugates, which take the potent power of a chemotherapy molecule and attempt to make that targeted with an antibody targeting to a unique feature on the cancer cell. And there are several antibody-drug conjugates that are in development at various levels of promise in this space, particularly in EGFR-mutated non–small cell lung cancer, and I anticipate seeing some emerging data for that coming up in the near future as well. So really, lots to be excited in the space and lots for our committee to review to give guidance on so that these patients can really receive the top-level care wherever they are being treated in the country and throughout the world. Brittany Harvey: Yes, we'll await this new data to continue to provide optimal options for patients with stage IV non–small cell lung cancer with driver alterations. So, Dr. Reuss, I want to thank you so much for your work to rapidly and continuously update and review the evidence for this guideline and thank you for your time today. Dr. Joshua Reuss: Thank you so much. 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, which is available on the Apple App Store or the Google Play Store. If you have enjoyed what you've heard today, please rate and review the podcast and be sure to subscribe so you never miss an episode. The purpose of this podcast is to educate and to inform. This is not a substitute for professional medical care and is not intended for use in the diagnosis or treatment of individual conditions. Guests on this podcast express their own opinions, experience, and conclusions. Guest statements on the podcast do not express the opinions of ASCO. The mention of any product, service, organization, activity, or therapy should not be construed as an ASCO endorsement.

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• Therapy for Stage IV NSCLC Without Driver Alterations: ASCO Living Guideline Update 2025.1 Part 1

  Dr. Lyudmila Bazhenova is back on the podcast to discuss the latest update of the living guideline on therapy for stage IV NSCLC without driver alterations. She shares the studies the Expert Panel reviewed in the first- and second-line settings, including NIPPON, HARMONi-2, and DUBLIN-3. Although these studies do not impact the existing guideline recommendations, Dr. Bazhenova provides context and comments on ongoing trials that will influence the next iteration of the living guideline. Read the full living guideline update “Therapy for Stage IV Non-Small Cell Lung Cancer Without Driver Alterations: ASCO Living Guideline, Version 2025.1” 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-25-01062 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. Lyudmila Bazhenova from University of California San Diego Moores Cancer Center, co-chair on "Therapy for Stage IV Non–Small Cell Lung Cancer Without Driver Alterations: ASCO Living Guideline, Version 2025.1." It's great to have you back on the show today, Dr Bazhenova. Dr. Lyudmila Bazhenova: It's my pleasure to be here. Brittany Harvey: And then before we discuss this guideline update, 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. Bazhenova, 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 here, Dr. Bazhenova, this living clinical practice guideline for systemic therapy for patients with stage IV non–small cell lung cancer without driver alterations is updated on an ongoing continuous basis. So what prompted this latest update to the recommendations? Dr. Lyudmila Bazhenova: Living ASCO guidelines are designed to keep pace with rapidly evolving evidence that impacts treatment of our patients with lung cancer. As a committee, we are tasked with regular review of the published literature and determine if the new data warrants changes to existing recommendations. So in this recently published update, we evaluated new trials related to treatment of patients with metastatic lung cancer without driver alterations. Brittany Harvey: Excellent. Thank you for that explanation of the process. So, you just mentioned that the panel reviewed new trials for this update. So, which particular updated evidence did the panel review on first-line treatment options for patients with good performance status across histology and PD-L1 expression status, and how did this impact the recommendations? Dr. Lyudmila Bazhenova: For the first-line treatment option for patients without driver alterations, two studies met our criteria for review. One was the NIPPON trial from Japan, the second was the HARMONi trial. None of those two trials resulted in change in our guidelines, but I think they are giving us some additional information that would be useful for the way we treat patients with non–small cell lung cancer without driver alterations. For example, if we take those patients, we currently have several treatment options as a first line. One is monotherapy immunotherapy. You can give pembrolizumab as an example, and that was based on the KEYNOTE-024 and KEYNOTE-042 trials. Then we have a platinum doublet plus immunotherapy, and there are several trials that did that pathway. And then we have also an option of giving our patients dual IO immunotherapy combination, such as CheckMate 9LA and POSEIDON. At this point, we do not have any randomized trials comparing those three treatment modalities head-to-head. And the NIPPON trial was interesting to us because it was the first trial to compare CheckMate 9LA regimen, which is again, dual immunotherapy plus chemo, versus KEYNOTE-189 or KEYNOTE-407, which is a chemotherapy plus immunotherapy. And as a result of the study, while chemotherapy plus ipilimumab-nivolumab led to numerically higher overall survival, the difference was not statistically significant. And what is concerning in that trial is that we saw a higher number of treatment-related death occurring in nivolumab and ipilimumab arm compared to the pembrolizumab-chemotherapy arm. As a matter of fact, the trial was terminated early because of the increased risk of death. If you look at the treatment-related death in CheckMate 9LA, the 9LA study reported the treatment-related death to be 2%, and then in the NIPPON trial, the treatment-related death was 7%. Why is that happening? It's really difficult to say. The study was done in Japan. Maybe there is some pharmacogenomic differences between global population and Japan population. But certainly the higher rate of adverse events needs to be taken into account. Another interesting thing about this trial is that it did not show any differences in a subset analysis for patients with squamous histology as well as PD-L1 negative tumor. So while this does not change our current guidelines and CheckMate 9LA treatment still remains an appropriate treatment option, it kind of raises the possibility that this combination could be associated with a higher toxicity. And we do have a randomized US-based trial that is ongoing, and we are hoping that eventually we will be able to answer that question after the trial will be completed. The second trial we reviewed is HARMONi-2. So HARMONi-2 was a randomized, double-blind study which is conducted primarily in China, looking at bispecific PD-L1 and VEGF antibody called ivonescimab. And that took patients who were PD-L1 positive, as defined as more than 1% expression, and patients were randomized to pembrolizumab versus bispecific ivonescimab. And the study was positive. It showed improvement in median progression-free survival of 11 months versus almost 6 months in bispecific versus pembrolizumab. There were, however, higher grade 3 events in the ivonescimab arm. At this point, we are not changing our recommendations because this trial was done in an ex-US population, and we are awaiting a similar trial ongoing in the United States before we change recommendations and decide if ivonescimab needs to be included in our guidelines. Brittany Harvey: This context is very helpful when clinicians think through the data behind these options. And it's important that the panel reviews this evidence, even if it doesn't prompt a change to the recommendations. And we'll await results of those trials that you mentioned to further inform this guideline. So then beyond those studies for first line, what updated evidence did the panel review for second-line and subsequent treatment options for patients with good performance status, and how did this impact the recommendations? Dr. Lyudmila Bazhenova: So for second line, only one trial met the criteria, and that was DUBLIN-3. DUBLIN-3 is a phase 3 single-blind randomized trial comparing docetaxel versus docetaxel plus plinabulin. And the study enrolled patients with second or third line. They have to have had platinum-based chemotherapy and progressed. Plinabulin is an interesting compound. It's a small molecule tubulin binder that prevents polymerization of tubulin and appears to impact dendritic cell maturation and T-cell activation. This study enrolled 559 patients, randomly assigned them to two groups. And one important information about this study is that was a study that was envisioned before immunotherapy became a standard mainstream treatment for first-line therapy. And only 20% of patients had prior PD-1 exposure. So therefore, the results of that study need to be taken into context of this population no longer existing in the United States because we use PD-L1 inhibitors in the first line. And we saw that interesting in the plinabulin arm had lower rates of neutropenia but higher rates of serious adverse events. And at this point, we are not changing our guidelines for mainly two reasons. Number one, low number of patients that received prior treatment with first-line immune checkpoint inhibitors, as well as a modest overall survival benefit of this trial. Brittany Harvey: Understood. I appreciate you describing that study as well and why that evidence didn't prompt a change to those particular recommendations. So then, what should clinicians know as they implement this living guideline, and how does this new evidence impact clinicians and patients? Dr. Lyudmila Bazhenova: At this point, none of the studies that we reviewed resulted in a change in guidelines. We are still waiting for more global results from some of the studies that I highlighted. It shows that there's still a lot of questions we need to be answering in those patients. And I'm hoping that with future clinical trials, we will be able to definitively maybe recommend one treatment over another. But at this point, all the treatments that I mentioned before remain appropriate for patients with stage IV non–small cell lung cancer without driver alterations. Brittany Harvey: Definitely. And then you just mentioned that there's still a lot of outstanding questions in this field. You've mentioned a couple different studies where we're awaiting evidence. Beyond those that you already mentioned, what is the panel examining for future updates to this living guideline? Dr. Lyudmila Bazhenova: Right now, our next task is to come up with a full guidelines update. ASCO have certain rules for the guidelines committee members. And so we are gearing for a full guideline update, which hopefully will be ready by the end of 2025. Brittany Harvey: Excellent. We'll look forward to that full update of the living guideline, and we'll still await results of these ongoing trials to further inform this living guideline. So I want to thank you so much for your work to rapidly and continuously update this living guideline, and thank you for the time today, Dr. Bazhenova. Dr. Lyudmila Bazhenova: My pleasure. 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, which is available in the Apple App Store or the Google Play Store. 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.  

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