ASCO Guidelines

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. L

Dr. Luis Raez and Michael Reff share the newest update to the medically integrated dispensing pharmacy standards from NCODA and ASCO. They review updates to domain one, on key patient-centered quality standards on health equity and social determinants of health, drug access, patient safety, education, and adherence to maximize treatment outcomes and domain two, on key operational quality standards on logistics, care coordination, and waste prevention. We also cover the impact of these updated standards for clinicians, oncology practices, and people receiving oral anti-cancer medications. Read the complete standards, “Medically Integrated Dispensing Pharmacy: ASCO-NCODA Standards.” Transcript These standards, clinical tools, and resources are available on ASCO.org.  Read the full text of the guideline and review authors’ disclosures of potential conflicts of interest in the JCO Oncology Practice. 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 Michael Reff from the Network of Collaborative Oncology Development and Advancement and Dr. Luis Raez from Memorial Cancer Institute and Florida Atlantic University, co-chairs on "Medically Integrated Dispensing Pharmacy: American Society of Clinical Oncology – Network of Collaborative Oncology Development and Advancement Association Standards Update." Thank you for being here, Michael and Dr. Raez. Dr. Luis Raez: Thanks for inviting us. Michael Reff: Thank you for having us. Brittany Harvey: Then, before we discuss these standards, I'd 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 Michael and Dr. Luis Raez 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 the content here, Michael, I'd like to start with what prompted an update to these ASCO-NCODA standards and what is the scope of this update? Michael Reff: Thank you, Brittany. What led NCODA and ASCO to endeavor in this, and it started back in 2019 as the amount of oral anticancer medications became more and more prevalent in cancer treatment, we saw the need providing a blueprint for excellence in care for patients prescribed oral anticancer medications, specifically in the outpatient setting. And the update was driven by the rapid growth of these oral oncolytics starting back in the mid to late 2015 through 2019 or so, and then continued on into the 2020s where we are today. We saw the increase in the complexity of the management of these patients with these therapies basically outside the traditional clinical settings. And we wanted to make sure that with more cancer treatments that are taken at home than just at the clinic, like in the oral setting, new challenges had emerged around patient safety, access, adherence, and overall treatment success. The updates now address patient-centered and operational interventions designed to improve access, safety, quality, accountability, and outcomes of oral anticancer and other supportive care medications prescribed for the cancer patient. Dr. Luis Raez: As Mike said, these guidelines help improve patient care tremendously, but also help us a lot as an oncologist, you know, community oncologists that- now that we have opportunity to dispense these oral oncolytics, we need help to create our medical integrated pharmacies, and NCODA is providing here a way that, how to do this safely, efficaciously, good quality, you know? So that's why I think we always do everything for the patients, but also this helps a lot to the doctors. And there are a lot of what we call specialty pharmacies or medical integrated pharmacies now nationwide. Michael Reff: I'll build on what Dr. Raez had mentioned. This is the impetus. If you looked at the innovation that was coming from the pharmaceutical companies, many of it coming in the oral form for anticancer medications, and based on that, taking a look at the infrastructure that is in place in these practices, whether it's in the community or the IDN or health system settings, this amount of innovation that was coming needed to be addressed by taking a look at the medically integrated oncology team. And these standards address not just the pharmacy component, but also the whole continuum of care, starting with a medical oncologist or the hematologist, with the pharmacists, nurses, the pharmacy technicians, others that are involved in the care of the patient. And there were no standards involved. And when we approached ASCO back in 2018 to eventually publish the first version of these standards, the need was identified, and we worked collaboratively with ASCO to create the first set and then the revisions as we talked about. One thing to note regarding the revision plus the original standards, we had a cross-section of the care team on the committee, and we did that very purposefully. So, the ASCO-NCODA team curated a committee to help develop these original standards and the revision of these standards with medical oncologists both from community and health systems, pharmacists from both community and health systems, and also nurses. And we also included a patient that currently has and currently receives oral anticancer medication. And so NCODA and ASCO are very proud of the committee that we put together because of the experts in their field, but also extended the invitation to a current patient. And we embedded everybody's expertise in the curation of these standards. Brittany Harvey: Absolutely. I appreciate that background and context and how it's critical to improve patient care. And these standards really help oncologists, and we're looking across the continuum of care to provide optimal care for our patients. So then next, Dr. Raez, I'd like to review the key points of the revised standards for our listeners. So for Domain 1, what are the key patient-centered quality standards on health equity and social determinants of health, drug access, patient safety, education, and adherence to maximize treatment outcomes? Dr. Luis Raez: Yeah, this was a great effort, you know, at the multidisciplinary team. And as you can read in the standard, there were more than 240 publications reviewed; more than 55 of them are quoted here. And the standards are in two groups, as you said. With the group one, I'll briefly mention some of them. For example, SDOH, social determinants of health, is very important because as doctors, we prescribe, and sometimes patients don't get the medication, you know? And we prescribe assuming that 100% of the patients will get the medication. But something simple like the patient doesn't have insurance, the patient is underinsured. I have a patient that we didn't have an address to send the medication because he's homeless. Something that as a doctor you say, "Oh, oh my God, this is outside my realm," but it's not outside reality. So that's why, even if we don't think that this is part of our expertise dealing with social determinants of health, the fact that the patients have food insecurity, they don't have transportation, they don't have insurance, they don't have a caregiver, impact tremendously in the outcomes of the therapy. So that's why, basically, in this standard, we want to call attention that SDOH, social determinants of health, needs to be identified. There are in the literature countless examples of why this is important. For example, in the guidelines, we quote two or three examples of prostate cancer studies that, for example, we quote a study of 27,000 people with prostate cancer that were taking oral oncolytics, and how come the fact that the elderly, seniors, the fact that they have high prescription costs, and how all of this affected the adherence to the medication. And that's why it's important to identify the SDOH. And in other sections of the guidelines, we said how to address them, no? Another important thing in this domain is the cultural, you know, we need to be culturally sensitive and to take care of all of these social factors. For example, here in South Florida, we deal with the Haitian culture, Filipino culture, Latin culture, and American culture, and it's a blend, but it's not easy to go from one to the other. Another one is the fact that we have to include new technologies. A lot of patients, for example, we use EMR, EMR Epic, and now Epic has everything in the phone. The fact that we can have now the patient can see her prescription medication over the phone, the fact that they can use the phone to request from you a refill, and from your phone, you send the refill to the pharmacy, and you notify from your phone to the patient that the refill is sent, and the patient can check in his phone that the refill is ready. These things are amazing because that's why it's important that we incorporate these technologies to the patient care, and in this specific case, of dispensation of oral therapies, no? Another crucial point is education. You cannot be sending a patient a package of 300 pills without education. So that's why in our guidelines, mainly pharmacy, clinical pharmacies, or in some centers like mine, we have advanced practice providers, it's mandatory in our centers to have like a one hour of education before you send the prescription. So the patient is aware about side effects and contraindications, all of these things. They provide them also materials and also consent. You know, in the old times, you don't give chemo without a consent. Now, a lot of people say, "Oh, it

Dr. Kimberly Perez and Dr. Jaydira Del Rivero discuss the new guideline from ASCO on symptom management for well-differentiated GEP-NETs. They share the latest recommendations on managing symptoms related to hormone excess, including carcinoid syndrome and carcinoid heart disease, managing symptoms of functioning pancreatic neuroendocrine tumors, and also palliative interventions. Dr. Perez and Del Rivero share how to use this guideline in concert with the systemic therapy for tumor control in metastatic well-differentiated GEP-NETs guideline, and hope for the future for the treatment of gastroenteropancreatic neuroendocrine tumors. Read the full guideline, “Symptom Management for Well-Differentiated Gastroenteropancreatic Neuroendocrine Tumors: ASCO Guideline.” Transcript This guideline, clinical tools, and resources are available on ASCO.org. Read the full text of the guideline and review authors’ disclosures of potential conflicts of interest in JCO Oncology Practice.        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. Kim Perez from Dana-Farber Cancer Institute and Dr. Jaydira Del Rivero from the Center for Cancer Research at the National Cancer Institute, co-chairs on “Symptom Management for Well-Differentiated Gastroenteropancreatic Neuroendocrine Tumors: ASCO Guideline.” Thank you for being here today, Dr. Del Rivero and Dr. Perez. Dr. Kim Perez: Thank you. Dr. Jaydira Del Rivero: Thank you so much for the invitation. 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. Perez and Dr. Del Rivero, who have joined us here today, are available online with the publication of the guideline in JCO Oncology Practice, which is linked in the show notes. So then to jump into the content here, first Dr. Del Rivero, could you provide an overview of the scope and purpose of this guideline? Dr. Jaydira Del Rivero: Yeah. Thank you so much. Well, first, we really wanted to thank ASCO for allowing us to develop these guidelines for the management of gastroenteropancreatic neuroendocrine tumors. I do want to mention that there is also another set of guidelines that I was very fortunate also to co-chair with Dr. Perez on the systemic management of gastroenteropancreatic neuroendocrine tumors. But when discussing these guidelines as well as with the different panelists, experts in this type of disease, we also realized that the management of these tumors are quite complex, not only from the management of the disease progression, but at the same time, management of the symptoms related to the hormone excess. And because of that, we like to thank ASCO for allowing us to then not only have a discussion on the systemic management of these tumors, but at the same time develop recommendations for the symptoms related to the different hormones that these neuroendocrine tumors may produce. These guidelines are for the management of grade 1 to grade 3 metastatic gastroenteropancreatic neuroendocrine tumors. These guidelines include the management of the different aspects and the symptoms related to hormone excess, such as carcinoid syndrome, carcinoid heart disease, how to manage carcinoid crisis, as well as the different symptoms and how to manage the functional pancreatic neuroendocrine tumors and as well as provide recommendations in the different treatments for these tumor types, not only from the systemic management but also from the surgical management as well as for liver-directed therapy options and the different aspects in terms of the palliative care of these patients to improve not only the symptoms related to the hormone excess caused by these tumors, but as well as to improve the quality of life. Brittany Harvey: Absolutely. And I appreciate that overview. And yes, we'll link the guideline on the Systemic Therapy for Tumor Control for Well-Differentiated Gastroenteropancreatic Neuroendocrine Tumors in the show notes for our listeners so that they can refer to that companion guideline as well. So then you just described the several different categories of recommendations that this guideline covers on symptom management. So, Dr. Perez, I'd like to start reviewing some of those key recommendations of that guideline. So, starting with what are the key recommendations for carcinoid syndrome and carcinoid heart disease? Dr. Kim Perez: Thank you Brittany. Yeah, I also want to thank ASCO for inviting us to do this podcast today. Just to start, I think these guidelines will really add to what's available in the literature to provide a kind of a quick look for the community provider to manage carcinoid-related symptoms. I think the highlights that I would point out are we've all been using somatostatin analogs for the last few decades to manage symptoms, but with the newer treatments that are now available, we tried to highlight what does the literature support in regards to PRRT, what does the literature support in regards to using systemic therapy for disease management, but also the benefits that you will get from a symptom management perspective using other modalities. I think the highlight really is it's a multidisciplinary approach. We are now considering surgery and embolization or interventional radiology as a critical piece. And I think the third that I'd highlight is the fact that sometimes we get too focused on carcinoid syndrome and the symptoms will actually, may result from other things. And the highlight in the algorithms that we've provided is what other things cause carcinoid-related diarrhea. And let's not forget about that because we will find ourselves treating and patients getting very frustrated with persistence of symptoms when in actuality, we should be treating something else that is causing a very similar symptom. For carcinoid heart disease, I think there are more and more guidelines that are now available to provide guidance there, but I think the major advances are that we should be utilizing heart assessment with echocardiogram with lab values such as BMP. But also critical to this is consulting with our cardiology colleagues and making sure that we're identifying heart related issues that are resulting from hormone excess sooner than later because interventions on the earlier side can really make a significant impact on quality of life and associated comorbidities and mortality. Brittany Harvey: Thank you for reviewing those key points for both carcinoid syndrome and carcinoid heart disease symptom management. So then the next set of recommendations. Dr. Del Rivero, what are the key highlights for symptom management of functioning pancreatic neuroendocrine tumors? Dr. Jaydira Del Rivero: Yes, it's very important to recognize the symptoms related to hormone excess due to pancreas neuroendocrine tumors. Up to 10% of pancreas neuroendocrine tumors may produce different hormones. Among those hormones can be insulin, gastrin, glucagon, somatostatin. So it's important to know and understand that based on what a neuroendocrine tumor is, they may produce different types of hormones. The importance of these guidelines is to also recognize some of these symptoms and how to address that, because it's not necessarily in these tumor types besides the management of metastatic disease, and know the different options that we recommend for metastatic disease from the systemic therapy, such as chemotherapy or targeted therapies or PRRT. It's important to recognize the symptoms because based on the symptoms we may recommend a different approach. That's something that is important to acknowledge and recognize. Moreover, in certain functional pancreas neuroendocrine tumors, as Dr. Perez mentioned, is a multidisciplinary approach. And it's important to also discuss these different cases with your endocrinologist. You may need to have an experienced endocrinologist to manage, for example, the excess of insulin. And also discuss your cases with a surgeon and interventional radiologist because some of these approaches can certainly improve the symptoms related to hormone excess. I understand that sometimes medical oncologists in the communities may not have access to the multidisciplinary approach or have the different teams that can manage these tumors, and that's the reason why with these guidelines we wanted to establish the understanding of different symptoms associated with the hormone excess to these neuroendocrine tumors as well as how to manage this. For example, in the case of insulinoma, I think for the medical oncologist it is important to know that the everolimus is an option to be used for these tumors, not only to manage tumor progressions related to this tumor type at the same time, because everolimus as a side effect causes hyperglycemia, that can also improve some of the symptoms related to the excess of insulin besides the somatostatin agonist. I think these recommendations will allow the medical oncologist to recognize the symptoms and based on what the symptoms cause, then you can have a different approach that could be added to the systemic therapies options as well. Brittany Harvey: Yes, beyond systemic therapy, it's important to be recognizing symptoms to provide an individualized approach for every single patient. So then, following that overview of symptom management for functioning pancreatic neuroendocrine tumors, Dr. Perez, what is recommended regarding palliative interventions for patients with gastroenteropancreatic neuroendocrine tumors? Dr. Kim Per

Dr. Rohan Garje shares the updated recommendations for the ASCO guideline on systemic therapy for patients with metastatic castration-resistant prostate cancer. He discusses the systemic therapy options for patients based on prior therapy received in the castration-sensitive and non-metastatic castration-resistant settings. He emphasizes personalizing treatment choices for each individual, considering patient-specific symptoms and signs, treatment-related toxicities, potential drug interactions, cost, and access. He also reviews recommendations on response assessment. The conversation wraps up with a discussion of potential future updates to this guideline, as the guideline transitions into a “living guideline” on mCRPC. Read the full guideline update, “Systemic Therapy in Patients with Metastatic Castration-Resistant Prostate Cancer: ASCO Guideline Update”. 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.      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. Rohan Garje from Miami Cancer Institute Baptist Health South Florida, lead author on, “Systemic Therapy in Patients with Metastatic Castration-Resistant Prostate Cancer: ASCO Guideline Update.” Thank you for being here today, Dr. Garje. Dr. Rohan Garje: Absolutely. Thank you so much for having me, 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. Garje, 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 start on the content of this guideline, first, could you provide us an overview of the purpose of this guideline update? Dr. Rohan Garje: Sure. So ASCO has guidelines for prostate cancer and the specific guideline which we have updated for metastatic castrate-resistant prostate cancer was originally published in 2014. It's almost a decade. It's been a long time due for an update. Over the last decade, we have seen a lot of advances in the treatment of prostate cancer, specifically with regards to genomic testing, newer imaging modalities, and also the treatment landscape. Now we have newer options based on genomic targets such as PARP inhibitors, we have radiopharmaceuticals, a newer variant of chemotherapy, and also some specific indications for immunotherapy which were not addressed previously. Because all these advances have been new, it was really important for us to make an update. In 2022, we did make a rapid update with lutetium-177, but these additional changes which we have seen made it an appropriate time frame for us to proceed with a newer guideline. Brittany Harvey: Absolutely. It's great to hear about all these advances in the field to provide new options. So I'd like to next review the key recommendations from this guideline. So let's start with the overarching principles of practice that the panel outlined. What are these key principles? Dr. Rohan Garje: As a group, all the panel members came up with some ground rules: What are necessary for all our patients who are being treated for metastatic CRPC? First, the founding aspect was a definition for what is metastatic CRPC. So we defined metastatic CRPC as castrate level of testosterone with evidence of either new or progressive metastatic disease on radiological assessments or patients who have two consecutive rising PSAs in the setting of existing metastatic disease. We also emphasized on the need for germline and somatic testing for patients with metastatic prostate cancer at an earliest available opportunity because it is critical to select appropriate treatment and also right treatment for patients at the right time. And we actually have a concurrent guideline which addresses what genes to be tested and the timing. The other principles are patients should continue to receive androgen deprivation therapy or undergo surgical castration to maintain castrate level of testosterone. Now the key aspect with these guidelines is personalizing treatment choices. As you can see the evolution of treatment options for prostate cancer, the drugs that were initially developed and approved for prostate cancer were primarily in castrate-resistant settings, but now most of these drugs are being utilized in castrate-sensitive. So, when these patients develop castration resistance, the challenges are there are no appropriate particular drug-specific guidelines they meet. So, it's very important for the clinicians to be aware of what treatments have been received so far prior to castration resistance so that they can tailor the treatment to patient specific situations. In addition, prior to choosing a therapy, it is important for the physicians to consider patient specific symptoms or signs, treatment-related toxicities, potential drug interactions, cost, and also access to the drugs. There may be multiple treatment options available for the patients, but for a patient specific scenario, there may be a drug that may be more promising than the others. So, it is important to tailor the drug choices based on patients' unique circumstances. The panel also recommends to early integrate palliative and supportive care teams for symptom management and also discuss goals of care with the patient as each patient may have unique needs and it's important for physicians to address those concerns upfront in the care. The panel also suggests patients to receive RANK ligand inhibitors such as denosumab or bisphosphonates such as zoledronic acid to maintain the bone strength to prevent skeletal-related events. Finally, I would like to also emphasize this point about the lack of randomized clinical trial data for optimal sequencing of therapies for patients with metastatic CRPC. As I previously alluded, we have taken into account all ongoing clinical trials, prior published data, and came up with a format of preferred drugs based on prior treatments and, I think, by following these several clinical principles which I just mentioned, we can optimally choose and utilize best treatments for patients with metastatic CRPC. Brittany Harvey: Absolutely. These principles that you just outlined are important for optimal patient care, and then I want to touch on one of those things. You talked importantly about the treatments received so far. So in the next set of recommendations, the role of systemic therapy was stratified by the prior therapy received in the castration-sensitive and non-metastatic castration-resistant setting. So starting with what does the panel recommend for patients who are previously treated with androgen deprivation therapy alone in these previous settings and whose disease has now progressed to metastatic castration-resistant prostate cancer? Dr. Rohan Garje: There are multiple treatment options based on prior treatment received. So for patients who received only ADT for their castration-sensitive disease, the panel strongly urges to get HRR testing to check for homologous recombinant repair related changes, specifically for BRCA1 and BRCA2 mutations, because we have three studies which have really shown significant clinical benefit for patients who have BRCA1 and BRCA2 mutations with drugs such as the combination of talazoparib and enzalutamide or olaparib with abiraterone or niraparib with abiraterone. Unless we test for those mutations, we'll not be able to give these agents upfront for the patients. In the HRR testing, if patients have HRR alterations but they are in genes which are non-BRCA, the guideline panel recommends to utilize talazoparib and enzalutamide based combination therapies. Now, if they don't have HRR alterations then there are multiple treatment choices available. It could either include androgen receptor pathway inhibitors such as abiraterone with prednisone. We could also consider docetaxel chemotherapy. The alternate choices for androgen receptor pathways include enzalutamide or the newer agents such as apalutamide and docetaxel. So, as you can see there are multiple options available, but the panel definitely emphasizes to test for HRR testing because this gives patients access to more precision therapies at this point. There may be various scenarios where a unique drug may be available for a specific patient situation. For example, patients who have very limited disease burden and may have one or two metastatic lesions, after a multidisciplinary discussion, targeted local therapies such as radiation or potentially surgery could also be offered. In select patients who have very indolent disease where they are castrate-resistant based on slow rising PSA, low-volume disease or asymptomatic disease can consider sipuleucel-T. And in patients who have bone-only metastatic disease, we could also consider radium-223, which is primarily now utilized for patients who have symptomatic bone disease. Brittany Harvey: Great. I appreciate you reviewing all those options and talking about how important it is to tailor treatment to the individual patient. So then the next category of patients, what is recommended for those who have been previously treated with ADT and an androgen receptor pathway inhibitor and whose disease has now progressed to metastatic castration-resistant prostate cancer? Dr. Rohan Garje: So for patien

Dr. Nimish Mohile and Dr. Jaishri Blakeley share the new rapid recommendation update to the therapy for diffuse astrocytic and oligodendroglial tumors in adults guideline. They review the evidence from the INDIGO trial that prompted this update, and how to incorporate the use of vorasidenib into clinical practice. They discuss the importance of molecular testing, particularly for IDH1 or IDH2 mutations and outstanding questions for treatment of patients with oligodendrogliomas and astrocytomas. Read the latest update, “Therapy for Diffuse Astrocytic and Oligodendroglial Tumors in Adults: ASCO-SNO Guideline Rapid Recommendation Update.” Transcript This guideline, clinical tools, and resources are available at http://www.asco.org/neurooncology-guidelines. Read the full text of the guideline and review authors’ disclosures of potential conflicts of interest in Journal of Clinical Oncology.   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. Jaishri Blakeley from Johns Hopkins University School of Medicine and Dr. Nimish Mohile from the Department of Neurology and Wilmot Cancer Institute at the University of Rochester Medical Center, co-chairs on “Therapy for Diffuse Astrocytic and Oligodendroglial Tumors in Adults: American Society of Clinical Oncology-Society for Neuro-Oncology Guideline Rapid Recommendation Update.”  Thank you for being here today, Dr. Blakeley and Dr. Mohile.  Dr. Jaishri Blakeley: Thank you.  Dr. Nimish Mohile: Thank you for having us.  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. Blakeley and Dr. Mohile 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.   So then, to jump into the content here, Dr. Mohile, could you start us off by describing what prompted this rapid update to the ASCO-SNO therapy for diffuse astrocytic and oligodendroglial tumors in adults guideline, which was previously published in 2021?  Dr. Nimish Mohile: Yeah. So the key reason for this update is the publication of a study in 2023. And this was a study called the INDIGO study that looked at a new class of therapies, something called IDH inhibitors. And in this study with a drug called vorasidenib, changed how we think about the treatment of oligodendrogliomas and astrocytomas, so particularly the grade 2 oligodendrogliomas and grade 2 astrocytomas. Because of the results of that study, we decided that we needed to do an update to inform clinicians about some of these changes and how we might approach these tumors differently today.  Brittany Harvey: Great. I appreciate that background. So then, based off the new data from the INDIGO study, what are the updated and new recommendations from the expert panel?  Dr. Nimish Mohile: So the key findings from the INDIGO study involved people who had grade 2 astrocytomas and grade 2 oligodendrogliomas. And in the setting after surgery, they were treated with vorasidenib, and what they found is that this delayed the time to next intervention. And the key aspect of that is that it delayed when we could start radiation and chemotherapy in these patients.   So what we did in the guidelines is that for both low grade oligodendrogliomas and low grade astrocytomas, we added one additional guideline statement. Our previous guideline in 2021 offered the options for observation or treatment with radiation and chemotherapy. And now in this guideline, we have options for observation, treatment with vorasidenib in those in whom we feel it is safe to defer radiation and chemotherapy, and then treatment with radiation and chemotherapy. So we've added in an additional option here. And the key message of the guideline is really on how, as clinicians, we think about using the vorasidenib and what the ideal setting for using the vorasidenib is.  Brittany Harvey: Excellent. It's great to hear about this new option for patients. So then you were just talking about how we think about who to offer this IDH inhibitor to. So, Dr. Blakeley, what should clinicians know as they implement these new recommendations into practice?  Dr. Jaishri Blakeley: Yes. So, first and foremost, let's go back to 2021, and a key note from those guidelines was the importance of molecular testing. And at that point, the importance of molecular testing, which in large part was focused on IDH1 or IDH2 mutations, was prognostic. We could say there's a difference in an IDH1 mutant astrocytoma and an IDH1 wild type astrocytoma, but we didn't have a specific therapeutic recommendation attached to that, like Dr. Mohile just said. And the big shift here is now we have a specific therapeutic for that population with IDH1 or IDH2 mutant glioma.   So for clinicians, we hope that they've been getting molecular testing on newly diagnosed glioma already, but now there's an additional motivation to do so because it may change your treatment plan in the right circumstance. So since the publication of the phase III INDIGO study that Dr. Mohile mentioned, and the FDA approval of vorasidenib, if you meet the specified criteria in the clinical trial - which the guidelines point out is a little different than what's on the FDA label, so clinicians might want to dig into that a little bit - then there is a treatment option that is new and different than combined chemoradiation or radiation alone or observation.  Brittany Harvey: I appreciate those clarifications there.   So then also, Dr. Blakeley, how does this update impact patients with astrocytic or oligodendroglial tumors?  Dr. Jaishri Blakeley: So first, patients also should know if they have IDH mutant gliomas. And this update only applies to people with IDH1/2 mutant glioma. Perhaps, we're not sure, it might only apply to people who are in the newly or newly-ish diagnosed category because the INDIGO study required that people were within the first five years of their surgical diagnosis and had not had other treatment. So there are a lot of people who have astrocytoma or oligodendroglioma who may or may not know their IDH1/2 status and may have already had another therapy - this update doesn't apply to them. We hope that future research will teach us about that. This update is for people who are newly diagnosed and just starting the journey to figure out the best therapy. It does say that if you do have that IDH1/2 alteration in your tumor, there is a drug therapy that is different from the drug therapies we would offer gliomas that do not have the IDH1/2 mutation.  Brittany Harvey: Absolutely. I think both that emphasis on molecular testing is very important and also thinking about that study inclusion criteria and how it impacts who's eligible for this treatment.   So then finally, Dr. Mohile, what are the outstanding questions about vorasidenib or other interventions for gliomas in adults?  Dr. Nimish Mohile: I think the key question for clinicians is exactly who we're going to use this in. The challenges with inclusion criteria in clinical trials is they don't actually always match what we're seeing in the clinic. And I think it brings up the question of, in low grade oligodendrogliomas which we think of as very slow growing tumors, do we have the option outside of the strict inclusion criteria to use that drug in other settings? I think it brings up the question for some clinicians in some of the higher grade tumors, in the grade 3 tumors, we don't yet have data in that area and our guideline doesn't address that. But I think some will be asking what the clinical activity of vorasidenib is in that setting. There are some suggestions that the IDH inhibitors may impact seizure control, and I think that that's data that we're continuing to wait on.   So I think that there's several outstanding questions there that we will have answers for hopefully in the next several years. I think the big question that we don't have an answer for and that will take a long time to know is whether the addition of vorasidenib in this setting actually improves how long people live. And given how long people with low grade oligodendrogliomas and low grade astrocytomas live today, we probably won't have an answer to that question for more than a decade.  Brittany Harvey: Definitely. We'll look forward to these ongoing developments and eventually longer term data on overall survival on these agents.   So, I want to thank you both so much for your work to rapidly include this information from this new trial. And thank you for your time today, Dr. Blakeley and Dr. Mohile.  Dr. Jaishri Blakeley: Thank you so much.  Dr. Nimish Mohile: Thank you Brittany.  Brittany Harvey: And 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/neurooncology-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

Dr. Ko Un “Clara” Park and Dr. Mylin Torres present the latest evidence-based changes to the SLNB in early-stage breast cancer guideline. They discuss the practice-changing trials that led to the updated recommendations and topics such as when SLNB can be omitted, when ALND is indicated, radiation and systemic treatment decisions after SLNB omission, and the role of SLNB in special circumstances. We discuss the importance of shared decision-making and other ongoing and future de-escalation trials that will expand knowledge in this space. Read the full guideline update, “Sentinel Lymph Node Biopsy in Early-Stage Breast Cancer: ASCO Guideline Update” at www.asco.org/breast-cancer-guidelines. TRANSCRIPT This guideline, clinical tools, and resources are available at http://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-25-00099       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. Ko Un "Clara" Park from Brigham and Women's Hospital, Dana-Farber Cancer Institute, and Dr. Mylin Torres from Glenn Family Breast Center at Winship Cancer Institute of Emory University, co-chairs on “Sentinel Lymph Node Biopsy in Early-Stage Breast Cancer: ASCO Guideline Update.” Thank you for being here today, Dr. Park and Dr. Torres. Dr. Mylin Torres: Thank you, it's a pleasure to be here. Brittany Harvey: And 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. Torres and Dr. Park, 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. To start us off, Dr. Torres, what is the scope and purpose of this guideline update on the use of sentinel lymph node biopsy in early-stage breast cancer? Dr. Mylin Torres: The update includes recommendations incorporating findings from trials released since our last published guideline in 2017. It includes data from nine randomized trials comparing sentinel lymph node biopsy alone versus sentinel lymph node biopsy with a completion axillary lymph node dissection. And notably, and probably the primary reason for motivating this update, are two trials comparing sentinel lymph node biopsy with no axillary surgery, all of which were published from 2016 to 2024. We believe these latter two trials are practice changing and are important for our community to know about so that it can be implemented and essentially represent a change in treatment paradigms. Brittany Harvey: It's great to hear about these practice changing trials and how that will impact these recommendation updates. So Dr. Park, I’d like to start by reviewing the key recommendations across all of these six overarching clinical questions that the guideline addressed. So first, are there patients where sentinel lymph node biopsy can be omitted? Dr. Ko Un "Clara" Park: Yes. The key change in the current management of early-stage breast cancer is the inclusion of omission of sentinel lymph node biopsy in patients with small, less than 2 cm breast cancer and a negative finding on preoperative axillary ultrasound. The patients who are eligible for omission of sentinel lymph node biopsy according to the SOUND and INSEMA trial are patients with invasive ductal carcinoma that is size smaller than 2 cm, Nottingham grades 1 and 2, hormone receptor-positive, HER2-negative in patients intending to receive adjuvant endocrine therapy, and no suspicious lymph nodes on axillary ultrasound or if they have only one suspicious lymph node, then the biopsy of that lymph node is benign and concordant according to the axillary ultrasound findings. The patients who are eligible for sentinel lymph node biopsy omission according to the SOUND and INSEMA trials were patients who are undergoing lumpectomy followed by whole breast radiation, especially in patients who are younger than 65 years of age. For patients who are 65 years or older, they also qualify for omission of sentinel lymph node biopsy in addition to consideration for radiation therapy omission according to the PRIME II and CALGB 9343 clinical trials. And so in those patients, a more shared decision-making approach with the radiation oncologist is encouraged. Brittany Harvey: Understood. I appreciate you outlining that criteria for when sentinel lymph node biopsy can be omitted and when shared decision making is appropriate as well. So then, Dr. Torres, in those patients where sentinel lymph node biopsy is omitted, how are radiation and systemic treatment decisions impacted? Dr. Mylin Torres: Thank you for that question. I think there will be a lot of consternation brought up as far as sentinel lymph node biopsy and the value it could provide in terms of knowing whether that lymph node is involved or not. But as stated, sentinel lymph node biopsy actually can be safely omitted in patients with low risk disease and therefore the reason we state this is that in both SOUND and INSEMA trial, 85% of patients who had a preoperative axillary ultrasound that did not show any signs of a suspicious lymph node also had no lymph nodes involved at the time of sentinel node biopsy. So 85% of the time the preoperative ultrasound is correct. So given the number of patients where preoperative ultrasound predicts for no sentinel node involvement, we have stated within the guideline that radiation and systemic treatment decisions should not be altered in the select patients with low risk disease where sentinel lymph node biopsy can be omitted. Those are the patients who are postmenopausal and age 50 or older who have negative findings on preoperative ultrasound with grade 1 or 2 disease, small tumors less than or equal to 2 cm, hormone receptor-positive, HER2-negative breast cancer who undergo breast conserving therapy. Now, it's important to note in both the INSEMA and SOUND trials, the vast majority of patients received whole breast radiation. In fact, within the INSEMA trial, partial breast irradiation was not allowed. The SOUND trial did allow partial breast irradiation, but in that study, 80% of patients still received whole breast treatment. Therefore, the preponderance of data does support whole breast irradiation when you go strictly by the way the SOUND and INSEMA trials were conducted. Notably, however, most of the patients in these studies had node-negative disease and had low risk features to their primary tumors and would have been eligible for partial breast irradiation by the ASTRO Guidelines for partial breast treatment. So, given the fact that 85% of patients will have node-negative disease after a preoperative ultrasound, essentially what we're saying is that partial breast irradiation may be offered in these patients where omission of sentinel node biopsy is felt to be safe, which is in these low risk patients. Additionally, regional nodal irradiation is something that is not indicated in the vast majority of patients where omission of sentinel lymph node biopsy is prescribed and recommended, and that is because very few of these patients will actually end up having pathologic N2 disease, which is four or more positive lymph nodes. If you look at the numbers from both the INSEMA and the SOUND trial, the number of patients with pathologic N2 disease who did have their axilla surgically staged, it was less than 1% in both trials. So, in these patients, regional nodal irradiation, there would be no clear indication for that more aggressive and more extensive radiation treatment. The same principles apply to systemic therapy. As the vast majority of these patients are going to have node-negative disease with a low risk primary tumor, we know that postmenopausal women, even if they're found to have one to three positive lymph nodes, a lot of the systemic cytotoxic chemotherapy decisions are driven by genomic assay score which is taken from the primary tumor. And therefore nodal information in patients who have N1 disease may not be gained in patients where omission of sentinel lymph node biopsy is indicated in these low risk patients. 14% of patients have 1 to 3 positive lymph nodes in the SOUND trial and that number is about 15% in the INSEMA trial. Really only the clinically actionable information to be gained is if a patient has four or more lymph nodes or N2 disease in this low risk patient population. So, essentially when that occurs it's less than 1% of the time in these patients with very favorable primary tumors. And therefore we thought it was acceptable to stand by a recommendation of not altering systemic therapy or radiation recommendations based on omission of sentinel nodes because the likelihood of having four more lymph nodes is so low. Dr. Ko Un "Clara" Park: I think one thing to add is the use of CDK4/6 inhibitors to that and when we look at the NATALEE criteria for ribociclib in particular, where node-negative patients were included, the bulk majority of the patients who were actually represented in the NATALEE study were stage III disease. And for stage I disease to upstage into anatomic stage III, that patient would need to have pathologic N2 disease. And as Dr. Torres stated, the rate of having pathologic N2 disease in both SOUND and INSEMA studies were less than 1%. And therefore it would be highly unlikely that these patients would be eligible just based on tumor size and characteristics for rib

Dr. Irene Su and Dr. Alison Loren present the latest evidence-based recommendations on fertility preservation for people with cancer. They discuss established, emerging, and investigational methods of fertility preservation for adults and children, and the role of clinicians including discussing the risk of infertility with all patients. Dr. Su and Dr. Loren also touch on other important aspects of fertility preservation, including the logistics of referral to reproductive specialists, navigating health insurance, and costs. They also discuss ongoing research and future areas to explore, including risk stratification, implementing screening, referral, and navigation processes in lower resource settings, fertility measurements, and health care policy impacts. Read the full guideline update, “Fertility Preservation in People with Cancer: ASCO Guideline Update” at www.asco.org/survivorship-guidelines." TRANSCRIPT This guideline, clinical tools, and resources are available at http://www.asco.org/survivorship-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-24-02782   In this guideline, the terms "male" and "female" were defined based on biological sex, specifically focusing on reproductive anatomy at birth. "Male" refers to individuals born with testes, while "female" refers to those born with ovaries. The guideline, and this podcast episode, we will refer to individuals as "males" or "females" based on this definition. 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. Irene Su from the University of California, San Diego, and Dr. Alison Loren from the University of Pennsylvania, co-chairs on “Fertility Preservation in People With Cancer: ASCO Guideline Update.” Thank you for being here today, Dr. Su and Dr. Loren. Dr. Irene Su: Thanks for having us. Dr. Alison Loren: Thanks for having us. Brittany Harvey: 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. Su and Dr. Loren, 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. So then, to jump into the content here, Dr. Loren, this is an update of a previous ASCO guideline. So what prompted this update to the 2018 guideline on fertility preservation? And what is the scope of this particular update? Dr. Alison Loren: Yeah, thanks, Brittany. So, yeah, a couple of things, actually. I would say the biggest motivation was the recognition that the field was really moving forward in several different directions. And we felt that the previous guidelines really hadn't adequately covered the need for ongoing reproductive health care in survivorship, including the fact that fertility preservation methods can be engaged in even after treatment is finished. And then also recognizing that there is increasing data supporting various novel forms of fertility preservation in both male and female patients. And we wanted to be able to educate the community about the wide array of options that are available to people with cancer, because it really has changed quite a bit even in the last six years. And then lastly, as I'm sure this audience, and you definitely know, ASCO tries to update the guidelines periodically to make sure that they're current. So it sort of is due anyhow, but I would say motivated largely by those changes in the field. Brittany Harvey: Great. I appreciate that background information. So then I'd like to dive a little bit more into those updates that you discussed. So, Dr. Su, I'd like to review the key recommendations across the main topics of this guideline. So starting with what are the recommendations regarding discussing the risk of infertility with patients undergoing cancer treatment? Dr. Irene Su: Thanks, Brittany. So for every child, adolescent, and adult of reproductive age who's been diagnosed with cancer, the recommendation remains that healthcare clinicians should discuss this possibility of infertility as early as possible before treatment starts, because that allows us, as reproductive endocrinologists and fertility specialists, to preserve the full range of options for fertility preservation for these young people. Where it's possible, I think risk stratification should be a part of the clinical infertility risk counseling and then the decision making. And then for patients and families who have an expressed interest in fertility preservation, and for those who are uncertain, the recommendation is to refer these individuals to reproductive specialists. And it turns out this is because fertility preservation treatments are medically effective for improving post-treatment fertility and counseling can ultimately reduce stress and improve quality of life, even for those who don't undergo fertility preservation. And as Dr. Loren said, a change in the guideline is specifically about continuing these discussions post-treatment yearly or when cancer treatments change because that changes their infertility risk or when pregnancy is being considered. Brittany Harvey: Absolutely. Discussing that risk of infertility at the beginning, before any treatment is initiated, and when treatment changes, is key. So then talking about the options for patients, Dr. Loren, what are the recommended fertility preservation options for males? Dr. Alison Loren: There has been a little bit of an evolution in options for male patients. The standard of care option which is always recommended is cryopreservation of sperm, or otherwise known as sperm banking. And this is something that should be offered ideally prior to initiating cancer directed therapy. The guideline does reflect the fact that we're starting to understand in a little bit more depth the impact of cancer-directed treatments on the health and quantity of sperm. And so trying to understand when, if ever, it's appropriate to collect sperm after initiation of treatment, but before completion of treatment remains an area of active research. But the current understanding of the data and the evidence is that sperm banking should be offered prior to initiating cancer-directed therapy. And all healthcare clinicians should feel empowered to discuss this option with all pubertal and post-pubertal male patients prior to receiving their treatment. We do offer a little bit more information about the ideal circumstances around sperm banking, including a minimum of three ejaculates of sufficient quality, if possible, but that any collections are better than no collections. We also talk about the fact that there is a relatively new procedure known as testicular sperm extraction, which can be offered to pubertal and post-pubertal males who can't produce a semen sample before cancer treatment begins. There remains no evidence for hormonal protection of testicular function - that has been a long-standing statement of fact and that remains the case. And then we also begin to address some of the potential risk of genetic damage in sperm that are collected soon after initiation of cancer-directed therapy. We are starting to understand that there is a degradation in the number and DNA integrity of sperm that can occur even after a single treatment. And so, really highlighting the fact that collecting samples, again, to Dr. Su's point, as early as possible and as many as possible to try to optimize biological parenthood after treatment. Brittany Harvey: Yes. Thank you for reviewing those options and what is both recommended and not recommended in this scenario. So then, following those recommendations, Dr. Su, what are the recommended fertility preservation options for female patients? Dr. Irene Su: There are a number of established and effective methods for fertility preservation for people with ovaries, and this includes freezing embryos, freezing oocytes, freezing ovarian tissue. For some patients, it may be appropriate to do ovarian transposition, which is to surgically move ovaries out of the field of radiation in a conservative gynecologic surgery, for example, preserving ovaries or preserving the uterus in people with gynecologic cancers. We do recommend that the choice between embryo and oocyte cryopreservation should be guided by patient preference and clinical considerations, their individual circumstances, including future flexibility, the success rates of embryo versus egg freezing that we detail more in the guideline, and legal considerations. And what is new in this guideline, as Dr. Loren alluded to earlier, is consideration of post-treatment fertility preservation for oocyte and embryo freezing. And this is going to be because, for some females, there's going to be a shortened but residual window of ovarian function that may not match when they are in their life ready to complete their families. And so for those individuals, there may be an indication to consider post-treatment fertility preservation. We clarify that gonadotropin releasing hormone agonists, GNRH agonists, while they shouldn't be used in the place of established fertility preservation methods, e.g., oocyte and embryo freezing, they can definitely be offered as an adjunct to females with breast cancer. Beyond breast cancer, we don't really understand the benefits and risks of GNRH agonists and feel that clinical trials in this area are highly encouraged. And also, that for patien

Dr. Mellar Davis discusses the joint guideline from MASCC, ASCO, AAHPM, HPNA, and NICSO on opioid conversion in adults with cancer. He reviews the limited evidence, and the formal consensus process used to develop the guideline. He shares the key recommendations on pre-conversion assessment, how opioid conversion should be conducted, including opioid conversion ratios, and post-conversion assessment. We touch on gaps and questions in the field and the impact of these new recommendations.  Read the full guideline, “Opioid Conversion in Adults with Cancer: MASCC-ASCO-AAHPM-HPNA-NICSO Guideline” at www.asco.org/supportive-care-guidelines. TRANSCRIPT This guideline, clinical tools, and resources are available at http://www.asco.org/supportive-care-guidelines. Read the full text of the guideline in the Supportive Care in Cancer, https://link.springer.com/article/10.1007/s00520-025-09286-z   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. Mellar Davis from Geisinger Medical Center, lead author on “Opioid Conversion in Adults with Cancer: Multinational Association of Supportive Care and Cancer, American Society of Clinical Oncology, American Academy of Hospice and Palliative Medicine, Hospice and Palliative Nurses Association, Network Italiano Cure di Supporto and Oncologia Guideline.” Thank you for being here today, Dr. Davis. Dr. Mellar Davis: Thank you. I'm glad to be here. Brittany Harvey 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. Davis, who has joined us here today, are available online with the publication of the guideline, which is linked in our show notes. So then, to dive into the content here, Dr. Davis, can you provide an overview of both the scope and purpose of this guideline on opioid conversion in people with cancer? Dr. Mellar Davis: This is an important topic in management of cancer pain and this topic came up as a result of a survey that MASCC had done, which involved 370 physicians in 53 countries. They were queried about how they change or convert one opioid to another, which is a common practice, and we found that there was quite a divergence in opioid conversion ratios. To step back a little bit, about two thirds of patients with advanced cancer have moderate to severe pain and most of the time they're managed by opioids. But about 20% or 40% require a switch either because they have an adverse reaction to it or they don't respond to it, or the combination of both. Rarely, it may be that they need a route change, perhaps because they have nausea or vomiting. So, the opioid conversion works basically because of the complexity of the new opioid receptor which has at least four exons to it as a result of that non-cross tolerance between opioids. As a result of the survey, we convened a group of specialists, 14 international specialists, to look to see if we could develop an international guideline. And we did a systematic review which involved viewing 21,000 abstracts and we came up with 140 randomized trials and 68 non-randomized trials. And after reviewing the data, we found that the data was really not strong enough to provide a guideline. As a result, ASCO, MASCC, the AAHPM, the HPNA and the Italian Group formed a supportive network that allowed us then to do a Delphi guideline based upon ASCO modified criteria for doing Delphi guidelines. And so we then involved 27 additional international experts informing the guideline to it. And this guideline is then the result of the Delphi process. It consists basically of a pre-conversion ratio recommendations, conversion ratios, which is actually a major contribution of this guideline, and then what to do after converting someone to another opioid. Our target audience was not only oncologists, but also we wanted to target nurses, pharmacists, hospitalists, primary care physicians, patients and caregivers. Brittany Harvey: I appreciate that background information, particularly on the evidence that is underpinning this and the lack of quality of evidence there, which really transformed this into a formal consensus guideline. We're glad to have all of these organizations coming together to collaborate on this guideline. So then next I'd like to review the key recommendations. So starting with, what is recommended for pre-conversion assessment? Dr. Mellar Davis: In regards to pre-conversion, physicians and clinicians need to be aware of pain phenotypes. That is, there are pains that are more opioid refractory than others, such as neuropathic pain, hence, they may be more resistant to the opioid that you're converting to. One needs to be aware of the fact that patients may not be compliant, they're either afraid of opioids not taking what was prescribed, so it's important to query patients about whether they are taking their opioid as prescribed. Occasionally, there are patients who will divert their medication for various reasons. Pain may be poorly controlled also because of dosing strategies that are poorly conceived, in other words, giving only ‘as needed’ opioids for continuous cancer pain. And there are rare circumstances where an opioid actually induces pain and simply reducing the opioid actually may improve the pain. The other issue may be cancer progression. So that poorly controlled pain or rapidly increasing pain may actually be a result of progressive cancer and changing treatment obviously will be important. And you need to assess the pain severity, the quality of the pain, the radiating localizing effects, which does require not only a physical exam but also radiographic examinations. But the other thing that's very important in opioid conversions are pain scales with function. A significant number of patients don't quite understand a numerical scale which we commonly use: 0 to 10, with 10 being severe pain and 0 being no pain. They may in fact focus more on function rather than on pain severity or pain interference with daily activities or roles. Sometimes patients will say, “Oh, my pain is manageable,” or “It's tolerable,” rather than using a numerical scale. Choices of opioids may be based on cost, drug-drug interactions, organ function, personal history or substance use disorder so that one will want to choose an opioid that's safe when converting from one to another. And obviously social support and having caregivers present and understanding the strategy in managing pain will be important. Brittany Harvey: Thank you, Dr. Davis, for reviewing those pre-conversion assessment considerations and particularly the challenges around some of those. So, following this pre-conversion assessment, what are the recommendations on how opioid conversion should be conducted? Dr. Mellar Davis: Opioid conversions are basically the safe dose. People have used the term ‘equianalgesia’, but the panel and the consensus group felt that that would be inappropriate. So a conversion ratio is the dose at which the majority of patients will not experience withdrawal or adverse effect. It would be the safe dose. Thereafter, the dose will need to be adjusted. So, in converting, that's only the first step in managing pain, the doses need to be adjusted to the individual thereafter. There are a significant number of conversions that are done indirectly, that is that there has not been a study that has looked at a direct conversion from one opioid to another in which one needs to convert through another opioid. We call that a ‘morphine equivalent daily dose’. So, most of the time a third opioid is used in the conversion. It allows you then to convert when there hasn't been a direct study that has looked at conversion between those two opioids, but it is less accurate and so one has to be a little bit more careful when using morphine daily equivalents. We found, and I think this is the major advantage to the guideline, is that commonly used opioids - oxycodone, morphine, hydromorphone - we did establish conversion ratios to which we found in the MASCC guideline they were widely divergent and hope that actually, internationally, they will be adopted. We also found some conversion ratios for second-line opioids. However, we felt also that an opioid like methadone, which has a unique pharmacology, should be left to experts and that experts should know at least several ways of converting from morphine usually to methadone. There is what appears to be a dose-related increased potency of methadone relative to morphine, which makes it more difficult, particularly at higher doses, to have an accurate conversion ratio. Most patients will have transient flares of pain. We came up with two suggestions. One is using a 10 or 15% of the around-the-clock dose for the breakthrough dose, but we also realized that there was a poor correlation between the around-the-clock dose and the dose used for transient flares of pain. And so the breakthrough dose really needs to be adjusted to the individual responses. There was also a mention of buprenorphine. One of the unique things about buprenorphine is that if you go from high doses of a drug like morphine to buprenorphine in a stop-start dosing strategy, you can precipitate withdrawal. And so one has to be careful and have some experience in using buprenorphine, which can be an effective analgesic. Brittany Harvey: Yes, I think that the conversion ratios that you mentioned that are in Table 3 in the full guideline are a really useful tool for clinicians in practice. And I appreciate the time that the panel

Dr. Lyudmila Bazhenova joins us again to share the newest changes to the living guideline on therapy for stage IV NSCLC without driver alterations. She discusses new evidence reviewed by the panel and changes to second-line recommendations for patients with good performance status and HER2 overexpression, and what these updates mean in practice. We discuss ongoing evidence generation as we await further updates to these living guidelines. Read the full living guideline update “Therapy for Stage IV Non-Small Cell Lung Cancer Without Driver Alterations: ASCO Living Guideline, Version 2024.3” at www.asco.org/living-guidelines. TRANSCRIPT This guideline, clinical tools, and resources are available at http://www.asco.org/living-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-24-02786     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 2024.3.” It's great to have you back on the show today, Dr. Bazhenova. Dr. Lyudmila Bazhenova: It's my pleasure to be here as always. Brittany Harvey: Great. 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 entire guideline panel, including Dr. Bazhenova, who has joined us here today, are available online with the publication of the guide in the Journal of Clinical Oncology, which is linked in the show notes. So then to dive into the content here, first, this living clinical practice guideline for systemic therapy for patients with stage IV non-small cell lung cancer without driver alterations has frequent updates to the recommendations. What prompted this latest update? Dr. Lyudmila Bazhenova: Living ASCO guidelines are created to keep up with rapidly changing evidence which affect treatment of our patients with lung cancer. As a committee, we review published literature on a specific topic at the regular intervals and determine if it alters any recommendations. This time, upon our literature review, we felt that there are new data that requires an update in the guidelines and therefore the guidelines were updated. Brittany Harvey: Great. Thank you for that updated information. So then it looks like the panel updated recommendations for second line and subsequent treatment options for patients with good performance status and HER2 overexpression. What is that updated recommendation from the panel? Dr. Lyudmila Bazhenova: Yes, this is correct. We now added an extra recommendation for patients with stage IV non-small cell lung cancer who have overexpression of the protein called HER2. HER2 overexpression with 2+/3+ level via immunohistochemistry is seen in approximately 8% to 20% of patients with lung cancer. And the data behind our recommendation comes from the DESTINY-Lung01 trial where patients with HER2 overexpression were treated with trastuzumab deruxtecan. And we saw that if patients with stage IV non-small cell lung cancer had a HER2 IHC score of 3+, overall response rate was seen at 53% and median duration of response was 6.9 months and, therefore, that in our opinion qualified for updated recommendation. We are still waiting for additional results that will be released later on another clinical trial where we see preliminary data presented at the World Conference of Lung Cancer in 2024. They looked at 36 patients also with HER2 overexpression and saw the overall response rate of almost 45%. It is important to highlight in this smaller study that a majority of the patients in the study were actually having EGFR mutation and the response rate in those patients who had an EGFR mutation was higher than the response rate in patients without EGFR mutations who just had a HER2 overexpression. So for now this is updated in the guidelines, but we will wait for additional data or formal publication of a World Lung Conference presentation and see if those recommendations need to be changed. Brittany Harvey: Understood, and I appreciate you providing the context of some of those ongoing developments as well. So then what should clinicians know as they implement this updated recommendation? Dr. Lyudmila Bazhenova: Number one, we should all start from remembering to test for HER2 via immunohistochemistry. There is a slight difference in what considers HER2 positive in lung versus breast. In lung, we use what's called the gastric scoring and the difference is the circumferential versus non circumferential staining of the membrane. And number two, immunohistochemistry is not always included in next generation sequencing panels. So when you order your next generation sequencing, I think it's important to know if your company that you're using is testing for HER2 via immunohistochemistry. And if it's not, make sure that you find a company that does or work with your local pathology department to make sure that this testing is offered. It is also important to know the difference between HER2 overexpression and HER2 exon 20 insertion mutation even though the treatment for those two abnormalities is the same, which is trastuzumab deruxtecan. But the benefit that you can cite your patients and the rigor of the literature supporting the usage of trastuzumab deruxtecan in mutation versus overexpression is different. Brittany Harvey: Yes. And as you mentioned, it's essential that, in the first place, patients are actually receiving the testing so that we know if they're eligible for these treatment options. So what additionally does this change mean for patients with stage IV non-small cell lung cancer and HER2 overexpression? Dr. Lyudmila Bazhenova: So for patients, it adds another treatment modality which is now FDA approved. So if there are patients listening to me, make sure that your physician has tested your tumor for HER2 overexpression. So I think proactive asking of your physician would be very appropriate in this situation. Brittany Harvey: Absolutely. And then earlier you mentioned an ongoing trial that the panel was looking to for the future. But what other additional trials did the panel review during this guideline update and what is the panel examining for future updates to this living guideline? Dr. Lyudmila Bazhenova: So at this point we reviewed three additional studies. The results of those studies did not make it into a change in guidelines. So we reviewed the HARMONi-2 trial.  HARMONi-2 trial so far does not have an official publication and, as per our strategy on how we come up with ASCO guidelines, we need to wait for an official publication. So this is one thing we're going to be expecting in the future. Once this is published, we will review it and decide if we need to make an additional change in recommendations. For those of you who are not aware, HARMONi-2 trial used bispecific monoclonal antibody against VEGF and PD-1 and was a phase III randomized trial comparing their investigational product which is called ivonescimab over pembrolizumab for patients with PD-L1 more than 50. And again, we are waiting for the final publication to make our recommendation. The second trial we reviewed was a LUNAR trial and the LUNAR trial looked at addition of tumor treating fields to chemotherapy or immunotherapy in patients whose cancer progressed with platinum doublet. The key point about this study is that immunotherapy was not required to be administered in a first line setting which is a current standard of care in the United States. And even though the study met their primary endpoint of overall survival, there were more benefits in patients who were immunotherapy naive in the second line. And we felt that given the potential lifestyle implication of wearing a device for 18 hours per day, and the lack of evidence in immunotherapy-pretreated population, and the absence of data in the first-line setting where we currently using immunotherapy in the United States, we felt that there is insufficient data to definitely recommend addition of tumor treating fields to systemic chemotherapy for most patients. And we are waiting for additional trials that are ongoing in this setting to formalize or change our recommendations. And we also reviewed- the final study that we reviewed was TROPION-Lung01. TROPION-Lung01 study was a phase III study in post platinum doublet setting which compared efficacy of Dato-DXd and docetaxel and trials showed improvement in progression free survival but not in overall survival. And progression free survival benefit was more pronounced in non-squamous carcinoma histology subgroup and we felt that the results do appear promising, but the strength of evidence which was based on unplanned subgroup analysis was not sufficient enough to make a change in treatment recommendation at this time. Brittany Harvey: I appreciate your transparency on why some of that data did not prompt a change to recommendations at this time. And additionally, we'll look forward to those future published results and potential incorporation of new data into future versions of this living guideline. So, I want to thank you so much for your work to rapidly and continuously update this guideline and for your time today, Dr. Bazhenova. Dr. Lyudmila Bazhenova: It is my pleasure. Thank you so much. Brittany Harvey: And thank you to all of our listeners

Dr. Jyoti Patel is back on the podcast to discuss the updates to the living guideline on therapy for stage IV NSCLC with driver alterations. She shares updated recommendations in the first- and second-line settings for patients with stage IV NSCLC and classical EGFR mutations, and the impact of these updates for clinicians and patients. We also look to the future to discuss ongoing developments in the field. Read the full living guideline update “Therapy for Stage IV Non-Small Cell Lung Cancer With Driver Alterations: ASCO Living Guideline, Version 2024.3” at www.asco.org/living-guidelines. TRANSCRIPT This guideline, clinical tools, and resources are available at http://www.asco.org/living-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-24-02785     Brittany Harvey: 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. Jyoti Patel from Northwestern University, co-chair on “Therapy for Stage IV Non-Small Cell Lung Cancer With Driver Alterations: ASCO Living Guideline, Version 2024.3.” It's great to have you back on the show today, Dr. Patel. Dr. Jyoti Patel: Thanks so much. 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. Patel, who has joined us here today, are available online with the publication of the guideline and in the Journal of Clinical Oncology, which is linked in the show notes. So then, to dive into the content of this update, Dr. Patel, this clinical practice guideline for systemic therapy for patients with stage IV non small cell lung cancer with driver alterations is living, meaning that it's continuously reviewed and updated. So what data prompted this latest change to the recommendations? Dr. Jyoti Patel: Thanks so much. So it's really been an exciting time in the treatment of EGFR lung cancer, particularly this past year has required us to rethink approaches to front- and second-line therapy. In this particular update, we examined what patients in the front-line setting may be offered by their clinicians. And so we're talking about the population of classical EGFR mutations, so exon 19 and exon 21 L858R substitution. And so certainly for this population, osimertinib has a high level of evidence and should be offered to all patients at the time of diagnosis when they present with advanced disease. Our last update included a recommendation that patients could also get platinum doublet chemotherapy with osimertinib or osimertinib alone. This current recommendation also introduces another alternative therapy and that's the combination of amivantamab plus lazertinib. And so now, clinicians are faced with three really good options for their patients with EGFR exon19 deletion or L858R. Brittany Harvey: It's great to hear that there's this advance in the space, particularly for patients with these classical EGFR mutations that you mentioned. So what should clinicians know as they implement these new first-line recommendations? Dr. Jyoti Patel:  I think it's become more complex than ever. Certainly, we know again that patients should get osimertinib in the frontline setting. But we've been kind of stuck at progression-free survival that's between a year and a half and two years. And so we've really been looking at opportunities to intensify therapy. So one could certainly be with chemotherapy or switching over to amivantamab, the bispecific antibody that targets EGFR and MET plus lazertinib, an oral TKI that's very similar in structure to osimertinib. And when you're talking to a patient, it's really a conversation about balancing efficacy with toxicity. Unfortunately, as we know, there aren't that many free lunches. And so if we think about what a patient is hoping for in their therapy and how we can further personalize treatment options, really is important to look at some of the analyses for this study. So in the study of amivantamab plus lazertinib, we know that there were increased toxicities with a combination of both therapies. In fact, up to 75% of patients had over grade 3 toxicities, versus about 43% of patients with osimertinib monotherapy. And we know if we look back at FLAURA2, almost two thirds of patients with osimertinib and chemotherapy had grade 3 toxicities, compared to 27% of patients with osimertinib alone. So we certainly see an increase in toxicities. Then we have to ask ourselves, are those paper toxicities or ones that really impact patients? And we know that amivantamab, for example, causes significant cutaneous toxicities. With both of these therapies, whether it's chemotherapy or adding amivantamab, there's the burden of infusional visits and increased time in the doctor's office. Certainly with chemotherapy, there can be an increased incidence of myelosuppression. And so when we're thinking about advising our patients, certainly we need to talk about the toxicities. But one thing that we've been able to do is to look at the patients that were included in this trial. And what we really find is that in higher risk cohorts, particularly those that we know historically have done less well with standard osimertinib, so patients, for example, with CNS metastasis, for those patients with co-mutations, it may be that that additive benefit is significant. And so one example I think would be from the MARIPOSA study, again, the study of amivantamab and lazertinib versus chemotherapy. What we can say is that patients who had co-mutations, so patients with EGFR mutations as well as TP53, lazertinib and amivantamab led to a hazard ratio of 0.65 compared to osimertinib alone. So that was 18.2 months versus 12.9 months. And so this may be really important to patients. And we also see conversely that patients with wild type TP53, so those patients who didn't have the mutation, probably had equivalent survival regardless of therapy. So certainly, we need to prospectively study some of these high-risk cohorts. We've only seen progression-free survival in these studies. And so at this juncture, we can advise our patients about toxicity, the improvements in certain categories of progression-free survival, but we really still don't know how this pans out in overall survival. In many of these studies, all patients do not necessarily cross over to the study arm and so they may have lost the benefit of subsequent therapy. Brittany Harvey: Absolutely. It's very important to talk about that balance of benefits and risks and particularly those toxicities that you discussed. So I appreciate reviewing that recommendation and the considerations for clinicians for first-line therapy. This update also included a second-line treatment update. What is that update for patients with EGFR alterations? Dr. Jyoti Patel: So this is where it gets super tricky because we have a frontline option with amivantamab and now we've had an update in the second line option. So what we said is that for patients who have progressed on an EGFR TKI, and in the United States, certainly that's predominantly osimertinib, or those in other parts of the world that may have gotten an earlier generation TKI, but do not have evidence of T790M or other targetable mutations, we can offer patients chemotherapy with or without amivantamab. And so certainly we have seen that this again leads to improved survival. There have also been a number of studies looking at incorporation of PD-L1 and anti-VEGF therapies. And what we can say, I think pretty clearly is that multiple phase 3 trials have really shown no benefit of the addition of PD-1 to platinum chemotherapy. But there are some emerging bispecific antibodies that may target PD-1 as well as VEGF, or combinations of antibodies that target both of those pathways that may improve outcome. At this juncture, I think we feel that the evidence surrounding chemotherapy plus amivantamab is strongest, but there is certainly work in this space that will be of interest. Now, what happens if your patient received amivantamab and lazertinib in the frontline setting and then has progression? And so we're trying to understand resistance mechanisms and opportunities for treatment. What the panel decided to recommend, based on the available evidence, was that certainly those patients should get platinum-based chemotherapy, but there may also be a role for antivascular endothelial growth factor targeting therapy such as bevacizumab in patients in whom it would be safe. Brittany Harvey: Great. I appreciate you detailing those recommendations when it gets complicated in the second-line setting. So what should clinicians know as they implement these second-line recommendations too? Dr. Jyoti Patel: So certainly the frontline setting matters significantly. So if a patient gets osimertinib in the frontline setting, we generally suggest that patients undergo repeat testing to see if they have another targetable mutation. If they don't, then I think preferred therapy would be chemotherapy with or without amivantamab. And amivantamab leads to a significant improvement in progression-free survival and response rate at the cost of increased risk of toxicity. For patients who get FLAURA2 in the frontline setting, chemotherapy plus osimertinib, it's a little bit of an unclear space. Those patients most likely would get docetaxel with or without ramucirumab. But there are other agents that we hope to have available to our patients in the

Dr. Chris Holsinger shares the new guideline from ASCO on transoral robotic surgery (TORS) for patients with oropharyngeal squamous cell carcinoma. He reviews the evidence-based recommendations on baseline assessment, the role of TORS in HPV-positive and HPV-negative disease and in the salvage/recurrent setting, which patients are eligible or ineligible for TORS, and the role of adjuvant therapy. He discusses the importance of multidisciplinary collaboration and shared decision-making between patients and their clinicians. Read the full guideline, “Transoral Robotic Surgery in the Multidisciplinary Care of Patients with Oropharyngeal Squamous Cell Carcinoma: ASCO Guideline.”   TRANSCRIPT This guideline, clinical tools, and resources are available at asco.org. Read the full text of the guideline and review authors’ disclosures of potential conflicts of interest in the Journal of Clinical Oncology.   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. Chris Holsinger from Stanford University, lead author on “Transoral Robotic Surgery in the Multidisciplinary Care of Patients with Oropharyngeal Squamous Cell Carcinoma: ASCO Guideline.” Thank you for being here today, Dr. Holsinger. Dr. Chris Holsinger: Thanks, Brittany. We've been working together for years on these guidelines and what a pleasure to get to meet you at least virtually today. Brittany Harvey: Yes, it's great to have you on. 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. Holsinger, 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 let's jump into this important guideline. Dr. Holsinger, to start us off, can you provide an overview of both the scope and purpose of this guideline? Dr. Chris Holsinger: Absolutely. And again, thanks for the opportunity to be here, Brittany. I appreciate the invitation to participate in the ASCO Guidelines and to work with the great people on this paper that's now out there. I think it's a really important guideline to be published because it really talks about surgery, specifically transoral robotic surgery, a minimally invasive technique, as a new way to treat head and neck cancer. Why that's so important is that what is now known as head and neck cancer is completely different than what we saw even 25 years ago. Around the turn of the century, some really thoughtful epidemiologists working at Hopkins and UW in Seattle started to see this connection between the human papillomavirus and head and neck cancer. And since then we've seen this precipitous rise in the number of throat cancers specifically due to HPV. The results from the American Cancer Society showed last year that head neck cancer, in particular these cancers of the oropharynx, actually were one of the few cancers that still had an increasing incidence, I think it was around 2.5% per year. And other studies have shown that almost 50% of the cases we're seeing across the United States now are actually HPV-mediated throat cancers. That's bad news because we're seeing this rise in cases, but it's good news in the sense that this is a cancer that is highly curable and I think opens up a lot of different treatment avenues that we didn't have a couple of decades ago. And when patients are facing a mortality risk that's two or three times lower than the formerly HPV-negative smoking-driven cancers, it really behooves us as clinicians, as oncologists to think about treatment selection in a completely different way. And for years, the only function-sparing option, surgery certainly was not, was radiation therapy with concurrent cisplatin chemotherapy. In 2009, the FDA approved the use of surgical robotics using a transoral approach, a minimally invasive approach to resect the primary tumors and to perform neck dissection. And so now when patients walk in the door, they not only have this gold standard option in the path of radiation therapy with chemo, but also frontline surgery. And with some recent publications, especially the ECOG 3311 study, there's some really good evidence that for HPV-mediated throat cancers, we can actually de-escalate the intensity of adjuvant therapy when we start with surgery first. So who we choose that option for, which patients want that option - these are all really important new questions that we try to grapple with in these guidelines. Brittany Harvey: That background is really key for setting the stage for what we're about to talk about today. And so next I'd like to review the key recommendations across the clinical questions that the panel addressed. So you just talked about the importance of treatment selection. So to start that off, first, what is recommended for baseline assessment for patients with oropharyngeal squamous cell carcinoma who are being considered for transoral robotic surgery? Dr. Chris Holsinger: So I think here we tried in the guidelines to really standardize the workup and approach of this disease, in general, but with a strong focus on who might be a good surgical candidate. As I mentioned in the introduction, I mean, this is a disease that is very new. Our workup is in flux. And so what we tried to do, especially in items 1.2 and 1.3, is to really standardize and confirm that the tumor that we're dealing with, which oftentimes presents in a metastatic lymph node, is in fact associated with the human papillomavirus. So how biopsy is done, how high risk HPV testing is performed, whether you're doing that with an in situ hybridization, a DNA based study, or a p16 immunohistochemical study. And we try to tackle these issues first to really make sure that the patient population we're considering is actually indeed eligible for this kind of treatment de-escalation with surgery. Brittany Harvey: Understood. So it's important to consider which patients could be eligible for TORS upfront. So what is the role of TORS in patients with HPV-positive oropharyngeal squamous cell carcinoma? Dr. Chris Holsinger: Yeah, exactly. So I think first of all, surgery is ideally suited, and the robot is FDA approved for early-stage cancers - T1 and T2 cancers that are amenable to a minimally invasive approach. And we really try to emphasize, especially in our patient selection section of the guideline, who is really an ideal candidate for this. It's not just the T1 and T2 tumor. It's a tumor that is lateralized so that we can maybe consider managing the neck concurrently just on the side of the tumor, rather than doing bilateral neck dissection for most patients. Which patients might get the best functional outcome is a really critical component of this. And in fact, that actually goes back to a guideline that we didn't have time to chat about earlier, which is that we think every head neck cancer patient, whether or not they're being considered for transoral robotic surgery or frontline radiation therapy with cisplatin, every patient should have a pre-treatment assessment by a speech and swallowing expert. They're called different names across the country: speech language pathologists, speech pathologists, etc. But having a really good functional assessment of the patient's ability to swallow before treatment selection is really critical. And why that's important with frontline surgery is that there's a period of about one or two weeks after which that patient really needs intensive rehabilitation. And so for every patient being considered by TORS, we want to work really hand in hand with that speech pathologist to do pre-habilitation and then immediate post-operative rehab and then long longitudinal rehabilitation so that if radiation is needed down the road in a month, that patient just hopefully sails through this de-escalated treatment that we're offering. Brittany Harvey: Great. I appreciate you describing which patients can be considered for transoral robotic surgery. So beyond that, which patients with HPV-positive oropharyngeal squamous cell carcinoma aren't really good candidates for TORS? Dr. Chris Holsinger: We talked about that sort of ideal patient, but you know, we're not always living in an ideal world. And so I think it's important, and I'm really happy about the multidisciplinary discussions that led to these final guidelines because I think it helped engage radiation oncologists, medical oncologists, and surgeons around who’s maybe not a good candidate for this because radiation therapy, with or without cisplatin chemotherapy, remains a good option for many of these patients. But I think the consensus, especially among the surgeons in this group, were that patients with tumors were more endophytic - that's the old fashioned oncology and surgical oncology term that refers to tumors that seem to not be as evident on the surface and have more of an infiltrative deep growth pattern - these are not ideal tumors. Whereas an exophytic tumor that's growing upwards, that's more readily seen on flexible endoscopy during a routine clinic assessment, or frankly, better seen on imaging, those exophytic tumors are better suited to a surgical approach because the surgeon has a better chance when he or she sees the tumor to get a good margin. When we can appreciate not just the surface mucosal margins that need to be taken, but also have a better chance to appreciate their depth. And with those infiltrative tumors, it's much harder to really understand how to get that deep ma

Dr. Stéphanie Gaillard and Dr. Bill Tew share updates to the evidence-based guideline on neoadjuvant chemotherapy for newly diagnosed, advanced ovarian cancer. They highlight recommendations across ten clinical questions, addressing initial assessment, primary cytoreductive surgery, neoadjuvant chemotherapy (NACT), tests and/or procedures that should be completed before NACT, preferred chemotherapy regimens, timing of interval cytoreductive surgery (ICS), hyperthermic intraperitoneal chemotherapy (HIPEC), post ICS-chemotherapy, maintenance therapy, and options for those without a clinical response to NACT. They highlight the evidence supporting these recommendations and emphasize the importance of this guideline for clinicians and patients. Read the full guideline update, “Neoadjuvant Chemotherapy for Newly Diagnosed, Advanced Ovarian Cancer: ASCO Guideline Update” at www.asco.org/gynecologic-cancer-guidelines." TRANSCRIPT This guideline, clinical tools, and resources are available at http://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. 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. Stéphanie Gaillard from Johns Hopkins University and Dr. Bill Tew from Memorial Sloan Kettering Cancer Center, co-chairs on “Neoadjuvant Chemotherapy for Newly Diagnosed, Advanced Ovarian Cancer: ASCO Guideline Update.” Thank you for being here today, Dr. Gaillard and Dr. Tew. Dr. Bill Tew: Thank you for having us. Dr. Stéphanie Gaillard: Yeah, thank you. It's great to be here. Brittany Harvey: Great. 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. Gaillard and Dr. Tew, 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. So then to dive into the content here, first, Dr. Tew, could you describe what prompted this update to the neoadjuvant chemotherapy for ovarian cancer guideline? And what is the scope of this update? Dr. Bill Tew: Yeah. It's been almost a decade since ASCO first published its neoadjuvant chemotherapy guidelines for women with newly diagnosed ovarian cancer, and over that 10-year period, there's really been a major shift in how oncologists treat patients in the U.S. If you look at the National Cancer Database, between 2010 and 2021, the proportion of patients with advanced ovarian cancer who underwent primary surgery fell from about 70% to about 37%. And there's been a doubling in the amount of neoadjuvant chemotherapy used. So we wanted to take a look at that and really both highlight the appropriate patient populations for primary surgery versus new adjuvant chemotherapy, as well as review any studies that have been published since then. There's been, I think, about 61 trials published, nine randomized trials alone in the last 10 years. And the scope of the guideline was really not only the neoadjuvant chemotherapy and surgical questions, but also to touch upon some new treatments that have come to the forefront in newly diagnosed ovarian cancer, including heated intraperitoneal chemotherapy or HIPEC, as well as the integration of maintenance therapy, particularly bevacizumab and PARP inhibitors. Brittany Harvey: Understood. That's a large amount of new evidence to review in this Update. Then, next, Dr. Gaillard, I'd like to review the key recommendations across the 10 clinical questions that the guideline addressed. So, starting with: What is recommended regarding initial assessment for patients with newly diagnosed pelvic masses and/or upper abdominal or peritoneal disease? Dr. Stéphanie Gaillard: Sure. So in talking about the first guidelines, the first one that we addressed was how to do the initial assessment for these patients. And first, and probably most critically, it's important to recognize that these patients really should be evaluated by a gynecologic oncologist prior to initiation of any therapy, whether that means a primary cytoreductive surgery or neoadjuvant chemotherapy, because really, they are the best ones to determine the pathway that the patient should take. The initial assessment should involve a CA-125, a CT of the abdomen and pelvis with oral and IV contrast, if not contraindicated, and then also chest imaging, in which a CT is really the preferred modality. And that helps to evaluate the extent of disease and the feasibility of the surgical resection. Now, there may be some other tools that could be helpful to also refine this assessment. So, for example, a laparoscopy can really help to determine the feasibility of surgical resection as well as the extent of disease. Further imaging, such as diffusion-weighted MRI or FDG-PET scans can be helpful, as well as ultrasounds. And then also an endometrial biopsy. And that was newly added because there really has been a divergence of treatment for endometrial cancer versus ovarian cancer. And so it's really important to determine upfront where the source of the disease is coming from. Brittany Harvey: I appreciate you describing those recommendations surrounding initial assessment. So following this assessment, Dr. Tew, which patients with newly diagnosed advanced epithelial ovarian cancer should be recommended primary cytoreductive surgery? Dr. Bill Tew: The key thing here is if the GYN oncology surgeon feels that they have a high likelihood of achieving a complete cytoreduction with acceptable morbidity, the panel overwhelmingly agrees that primary cytoreduction surgery should be recommended over chemotherapy. And we know that surgery is really the cornerstone to achieving clinical remission. And our concern is that neoadjuvant chemotherapy may be overused in this fit population. Sometimes it is challenging to determine truly if a patient has a high likelihood of complete cytoreduction or what is acceptable morbidity. But an evaluation with performance status, fitness, looking at age or frailty, nutritional status, as well as a review of imaging studies to plan and determine for who is the right patient for primary surgery is key. Brittany Harvey: And then the title of this guideline, Dr. Gaillard, for which patients is neoadjuvant chemotherapy recommended? Dr. Stéphanie Gaillard: Yeah. So there's really two patient populations that we think are best suited to receive neoadjuvant chemotherapy. Those may be patients who are fit for a primary cytoreductive surgery, but they're unlikely to have a complete cytoreduction if they were to go to surgery directly. And so that's where neoadjuvant chemotherapy can be very helpful in terms of increasing the ability to obtain a complete cytoreduction. The second population is those who are newly diagnosed who have a high perioperative risk, and so they're not fit to go to surgery directly. And so it may be better to start with neoadjuvant chemotherapy and then do an interval cytoreductive surgery. Again, I just want to emphasize the importance of including a gynecologic oncologist when making these determinations for patients. Brittany Harvey: Absolutely. So then the next clinical question. Dr. Tew, for those patients with newly diagnosed stage 3 to 4 epithelial ovarian cancer, what tests and or procedures are recommended before neoadjuvant chemotherapy is delivered? Dr. Bill Tew: The key test is to confirm the proper diagnosis, and that requires histological confirmation with a core biopsy. And this was a point the panel strongly emphasized, which is a core biopsy is a much better diagnostic tool compared to cytology alone. But there will be cases, exceptional cases, where a core biopsy cannot be performed. And in those settings, cytology combined with serum CA-125 and CEA is acceptable to exclude a non-gynecologic cancer. The other reason why cord biopsy is strongly preferred is because we already need to start thinking about germline and somatic testing for BRCA1 and 2. This information is important as we start to think about maintenance strategies for our patients. And so having that information early can help tailor the first-line chemotherapy regimen. Brittany Harvey: So then you've described who should be receiving neoadjuvant chemotherapy, but Dr. Gaillard, for those who are receiving neoadjuvant chemo, what is the preferred chemotherapy regimen? And then what does the expert panel recommend regarding timing of interval cytoreductive surgery? Dr. Stéphanie Gaillard: Sure. So for neoadjuvant chemotherapy, we generally recommend a platinum taxane doublet. This is especially important for patients with high grade serous or endometrioid ovarian cancers, and that's really because this is what the studies had used in the neoadjuvant trials. We recognize, however, that sometimes there are individual patient factors, such as advanced age or frailty, or certain disease factors such as the stage or rare histology that may shift what is used in terms of chemotherapy, but the recommendation is to try to stick as much as possible to the platinum taxane doublet. And then in terms of the timing of interval cytoreductive surgery, this was something that the panel discussed quite a bit and really felt that it should be performed after four or fewer cycles of neoadjuvant chemotherapy, especially in patients who've had a response to chemotherapy or stable disease. Sometimes alternative timing of surgery can be considered based

Dr. Evan Yu presents the new evidence-based guideline on genetic testing for metastatic prostate cancer. He discusses who should receive germline and somatic testing with next-generation sequencing technologies, what samples are preferred for testing, and the therapeutic & prognosistc impacts of genetic testing. Dr. Yu emphasizes the need for awareness and refers to areas of active investigation and future research to improve personalized therapies for patients with metastatic prostate cancer.  Read the full guideline, “Germline and Somatic Genomic Testing for Metastatic Prostate Cancer: ASCO Guideline” at www.asco.org/genitourinary-cancer-guidelines. TRANSCRIPT This guideline, clinical tools, and resources are available at http://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-24-02608 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. Evan Yu from the University of Washington and Fred Hutchinson Cancer Center, lead author on “Germline and Somatic Genomic Testing for Metastatic Prostate Cancer: ASCO Guideline”. Thank you for being here today, Dr. Yu. Dr. Evan Yu: Thanks for having me on. Brittany Harvey: Great. 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 entire guideline, including Dr. Yu, 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, Dr. Yu, to start us off on the content of this guideline, could you first provide an overview of both the purpose and scope of this guideline? Dr. Evan Yu: Yeah, absolutely. So I think the one key thing to recognize is that prostate cancer is the highest incidence of all cancers in males. Additionally, it's the second highest cause of mortality in males, and that's about 35,000 deaths in 2024. So with that being said and done, it's a disease where we need to do better. And part of that is recognizing that we now have many targeted therapies, precision medicine type of therapies, but unlike a lot of other cancers out there, prostate cancer patients are not always getting sequencing, next generation DNA sequencing, let's say, to identify both inherited and also spontaneously develop what we call somatic mutations in their tumor. And I suspect that's partially because other cancers like breast cancer, we're so used to- in the first line, you present the patient, you throw out their estrogen receptor status, progesterone receptor status, HER2, ER/PR HER2; in lung cancer it’s EGFR, ALK, ROS1, etc. In things like prostate cancer, things like BRCA2 have major important patient treatment implications and potentially family counseling and downstream cascade testing implications. But it hasn't made their way into that first-line presentation yet. And for that reason, there are some studies out there that show that testing in the community may be as low as 15% of patients with metastatic prostate cancer. We want to bring awareness to that and hopefully increase testing down the road so that we can better help our patients with metastatic prostate cancer. Brittany Harvey: Absolutely. It's important to get these targeted therapies to the patients who can benefit most. Using that context, I'd like to next review the key recommendations of this guideline across the six clinical questions that the panel addressed. So, starting with: Who should receive germline testing with next generation sequencing technologies? Dr. Evan Yu: Yeah. We think that it's common enough that everyone with metastatic prostate cancer should receive germline genetic testing. And the reason for that is there have been studies that have looked at this and have shown that 12% of men with metastatic prostate cancer have some sort of inherited germline mutation in a gene, mostly DNA repair genes. But 12% have something that is inherited and that loved ones, first degree relatives, siblings, offspring might have also inherited. Now, most of these are in the DNA repair genes, but that being said and done, there's not only treatment implications for the patient, where there are newer drugs that that patient could get treated with, but other loved ones that might have inherited these gene mutations, that these things can cause other cancers as well - not just prostate cancer, but breast cancer, endometrial cancer, ovarian cancer, pancreatic cancer. So, it's very important to test, with as high of an incidence as 12%, to test, and if you identify it in a patient, it's our job to talk to the patient about it and talk to them about the pros and cons of family counseling and talking to their loved ones and potentially having their loved ones get tested. Because if they test positive, then their doctors may want to know and may screen them very, very aggressively and differently for a whole host of other cancers. And the whole idea is you find the cancer very early and cure the patients before the cancer really takes hold and has the ability to spread so we can save a lot of lives down the road. Brittany Harvey: Absolutely. This germline testing is important not just for the patient, but has wider implications for their families as well, as you mentioned. So then, beyond those recommendations for germline testing, which patients should receive somatic testing with next-generation sequencing technologies? Dr. Evan Yu: So let's talk a little bit about somatic testing. So germline again, as we know, is inherited. The patient inherited it in every single cell in their body, then it becomes very easy, many of these are cancer predispositions for them to lose the other allele and then to have biallelic loss and then develop the cancer. Now, somatic just means it spontaneously occurred. Certainly, it's not going to occur in every cell in the body, but you can get one hit, lose one allele and then lose the other allele. And if that gene is truly carcinogenic and leading to that cancer, then that can have implications potentially for treatment as well. So we recommend that all patients with metastatic prostate cancer also undergo somatic next-generation sequencing testing. We recognize that at this point in time it's only those with metastatic castration-resistant prostate cancer or hormone-resistant prostate cancer, which is a later disease state where there are drugs that may target those mutations, for instance, like PARP inhibitors, but that early identification for a patient population that's fit and that can benefit from these therapies makes sense so that you know it's in place already and you have your treatments outlined and mapped out for the future. So we recommend it for everybody - somatic testing also for everyone with metastatic prostate cancer. Brittany Harvey: Understood. And then when patients are receiving that somatic testing, what is recommended for somatic testing? Primary tumor archival tissue? Fresh metastatic biopsy tissue? Or circulating tumor DNA testing? Dr. Evan Yu: We recommend that in the initial setting when you're first diagnosed, that archival tissue samples are fine and preferred. But circulating tumor DNA is good when there's no accessible archival tissue, or if the archival tissue, let's say, is very old and it's been sitting around for a long time, or you can't get it anymore because it's many years back when maybe a patient had a prostate needle biopsy. So if it's not accessible, then we recommend ctDNA. We believe that is preferred and also that ctDNA is recommended in a situation where you can't easily biopsy a metastatic site. Sometimes it's just not in a safe area to go after. Sometimes it's just a small lesion. So in general, we recommend tissue when available, and when we think that the tissue sample will yield clean results, if not, then we recommend doing ctDNA at that point in time. Brittany Harvey: So you have described who should get germline and somatic genomic testing. But what are the therapeutic impacts of this germline or somatic testing for single gene genetic variants? Dr. Evan Yu: We pulled this panel together and we met like every single month for like 12 months straight, and part of it was to review the literature. And as part of this literature review, we were able to pull a whole bunch of different trials. I think there was like 1713 papers we identified in the literature search. Eventually, we narrowed it down because with ASCO, we want to present the data with the highest level evidence, level 1 evidence, randomized controlled prospective data. And after reviewing 1713 papers, we narrowed it down to 14 papers. With those 14 papers, if you look at it, there are a lot of things that we think may have implications for treatment or prognosis, but we didn't feel was the highest level of evidence that we could support. So the things that have the highest level of evidence that we can support are certain DNA repair gene alterations, especially BRCA2, and treatment with PARP inhibitors because there are many PARP inhibitor prospective trials that show progression-free survival benefit and even overall survival benefit. And so that's the type of study that achieved the level of evidence that we could include. So I would say BRCA1 and BRCA2 highest level of evidence and PARP inhibitor use also is included in that. Brittany Harvey: Understood. I appreciate you reviewing those therapeutic

Dr. Hedy Kindler joins us on the podcast to discuss the latest update to the treatment of pleural mesothelioma guideline. She discusses the latest changes to the updated recommendations across topics including surgery, immunotherapy, chemotherapy, pathology, and germline testing. Dr. Kindler describes the impact of this guideline and the need for ongoing research in the field. Read the full guideline update, “Treatment of Pleural Mesothelioma: ASCO Guideline Update” at www.asco.org/thoracic-cancer-guidelines.   TRANSCRIPT This guideline, clinical tools, and resources are available at http://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-24-02425 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. Hedy Kindler from the University of Chicago, lead author on “Treatment of Pleural Mesothelioma: ASCO Guideline Update.” Thank you for being here today, Dr. Kindler. Dr. Hedy Kindler: Thank you so much. Brittany Harvey: Then, before we discuss this guideline, I'd like to note that ASCO takes great care in the development of its guidelines in 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. Kindler, 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 jump into the content of this podcast episode, first, Dr. Kindler, can you provide an overview of the purpose and scope of this guideline update on pleural mesothelioma? Dr. Hedy Kindler: The initial ASCO practice guideline on mesothelioma, which we published in 2018, was quite comprehensive, but since that time incredible progress has been made which has truly transformed the management of this disease. So we felt it was really important to update the guideline now, focusing on four key areas: the role of surgery, new systemic treatments, pathologic insights, and germline testing. Brittany Harvey: Great. Thank you for highlighting those key areas of the guideline. And so I'd like to next review the key updated recommendations for our listeners. So starting with what are the new updates for surgery? Dr. Hedy Kindler: So surgery has always been controversial in meso, with significant geographic variation in its use. Now, it's even more controversial. Recent randomized data from the MARS 2 trial, placed in the context of other data we also reviewed in this update, suggest that surgical cytoreduction should not be routinely offered to all patients based solely on anatomic resectability. Surgery should only be offered to highly selected patients with favorable prognostic characteristics. This includes comprehensively staged patients with early-stage epithelioid tumors. Patients should preferably be treated at centers of excellence which have documented low morbidity and mortality, and this should also be done in the context of multimodality therapy and preferably within clinical trials. Brittany Harvey: Understood. I appreciate you reviewing those recommendations for who surgery should be offered to. So following those, what are the main recommendations for immunotherapy for treating pleural mesothelioma? Dr. Hedy Kindler: So for a disease in which for 16 years there was only one FDA-approved regimen, pemetrexed and platinum, the pace of recent changes in systemic therapy has been a welcome change with the FDA approval of doublet immunotherapy in October of 2020 and the approval of chemo immunotherapy just a few months ago in September of 2024. Now that we have choices, we've tried to help clinicians determine the optimal treatment regimen for the individual patient. Doublet immunotherapy with ipilimumab and nivolumab should be offered as a first-line systemic option to any mesothelioma patient. For patients with non-epithelioid histology, doublet immunotherapy is hands down the recommended regimen based on the dramatic improvement in survival from 8.8 to 18.1 months for immunotherapy compared with chemo. For patients with previously untreated epithelioid mesothelioma, either ipilimumab-nivolumab immunotherapy or platinum-pemetrexed chemotherapy are reasonable options. Therapy can be individualized based on the patient's comorbidities, acceptance of differing toxicities. and treatment goals. Chemoimmunotherapy with pembrolizumab, pemetrexed, and carboplatin is a newer treatment option for patients with newly diagnosed pleural mesothelioma. This regimen is noteworthy for its very high objective response rate of 62%. Brittany Harvey: It's great to have those new options to improve outcomes for patients. Beyond the chemoimmunotherapy recommendation that you just described, what are the highlights for chemotherapy recommendations? Dr. Hedy Kindler: So pemetrexed platinum-based chemotherapy with or without bevacizumab still plays a role in this disease and should be offered as a first-line treatment option in patients with epithelioid histology. This regimen is not recommended in patients with non-epithelioid disease unless they have medical contraindications to immunotherapy. Pemetrexed maintenance chemotherapy following pemetrexed-platinum chemotherapy is not recommended. Brittany Harvey: Thank you for reviewing those recommendations as well. So then next, what are the important changes regarding pathology? Dr. Hedy Kindler: Well, one fun fact is that we've changed the name of the disease. It's no longer malignant mesothelioma. Now it's just mesothelioma. Since the non-malignant mesothelial entities have been renamed, all mesos are now considered malignant, so there's no need to use the prefix malignant in the disease name. Mesothelioma should be reported as epithelioid, sarcomatoid, or biphasic because these subtypes have a clear prognostic and predictive value. Knowing the subtype helps us decide on whether chemotherapy or immunotherapy is the optimal treatment for a patient, so it must be reported. Additionally, within the epithelioid subtype, histologic features, including nuclear grade, some cytologic features, and architectural patterns should be reported by pathology because they have prognostic significance. Pathologists have recently identified a premalignant entity, mesothelioma in situ, which can be found in patients with long standing pleural effusions and should be considered in the differential diagnosis. In the appropriate clinical setting, additional testing, including BAP1 and MTAP IHC should be performed. Brittany Harvey: Definitely. These pathologic recommendations are important for treatment selection. So in that same vein, in the final section of the recommendations, what are the updated recommendations from the panel regarding germline testing? Dr. Hedy Kindler: This is one of our most important recommendations, that universal germline testing should be offered to all mesothelioma patients. The proportion of patients with mesothelioma who have pathogenic or likely pathogenic germline variants is similar to other diseases in which universal germline genetic testing and counseling are now the standard of care. This is most commonly observed in the tumor suppressor gene BAP1 and this not only affects cancer risk in patients and their family members, but also has key prognostic significance. For example, pleural mesothelioma patients with BAP1 germline mutations who receive platinum-based chemotherapy live significantly longer, 7.9 years compared to 2.4 years for those without these mutations. Thus, we recommend that all patients with mesothelioma should be offered universal germline genetic counseling and/or germline testing. Brittany Harvey: So there were a large amount of new and updated recommendations in this update. So in your view Dr. Kindler, what is the both importance of this update and how will it impact both clinicians and patients with pleural mesothelioma? Dr. Hedy Kindler: Even as we were researching and writing this update, new data kept emerging which we needed to include. So it's clearly a time of great progress in the management of this disease. We've comprehensively reviewed and analyzed the extensive emerging data and provided clinicians with a roadmap for how to incorporate these new advances into their management of this disease. Brittany Harvey: Absolutely, that is key for optimal patient care. So you've just mentioned emerging data and rapid evidence generation, so what future research developments are being monitored for changes in the treatment of pleural mesothelioma? Dr. Hedy Kindler: Despite these recent advances in disease management, mesothelioma continues to be a lethal cancer, and there's clearly a need to develop better treatments. This includes ongoing studies of novel immunotherapeutic agents such as bispecific antibodies, cell therapy using chimeric antigen receptors targeting mesothelioma tumor antigens, and precision medicine approaches to target tumor suppressor genes. Finally, strategies for early cancer detection and prevention are vital for individuals predisposed to develop mesothelioma due to BAP1 and other germline mutations, as well as for those who are occupationally or environmentally exposed to asbestos. Brittany Harvey: Absolutely. We'll look forward to these new updates to continue development in the field. So thank you so much for this mountain of work to update this guideline, and thank you for your time today, Dr. Kindler. Dr. Hedy Kindler: Thank you so much. It's been a pleasure. Thank you for asking

Dr. Van Morris presents the new evidence-based guideline on systemic therapy for localized anal squamous cell carcinoma. Dr. Morris discusses the key recommendations from the Expert Panel, including recommended radiosensitizing chemotherapy agents, dosing and schedule recommendations, the role of induction chemotherapy and ongoing adjuvant chemotherapy, and considerations for special populations. He emphasizes the importance of this first guideline from ASCO on anal squamous cell carcinoma for both clinicians and patients with stage I-III anal cancer, and ongoing research the panel is looking to for the future. Read the full guideline, “Systemic Therapy for Stage I-III Anal Squamous Cell Carcinoma: ASCO Guideline” at www.asco.org/gastrointestinal-cancer-guidelines. TRANSCRIPT This guideline, clinical tools, and resources are available at http://www.asco.org/gastrointestinal-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-24-02120 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. Van Morris from MD Anderson Cancer Center, co-chair on “Systemic Therapy for Stage I-III Anal Squamous Cell Carcinoma: ASCO Guideline.” Thank you for being here today, Dr. Morris. Dr. Van Morris: Thank you for having me. On behalf of our committee who put together the guidelines, I'm really excited to be here and talk with you today. Brittany Harvey: Great. 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. Morris, 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 jump into the content of this guideline, Dr. Morris, can you provide an overview of both the purpose and the scope of this guideline on stage I to III anal squamous cell carcinoma? Dr. Van Morris: So anal cancer is considered a rare malignancy for patients in the United States and across the world as well. Even though it's not something we see as commonly, for example, as the adjacent colorectal cancer, this still is a cancer that is rising in incidence every year in the United States. And really, despite the presence of the preventative HPV vaccines, which we hope will ultimately prevent and eradicate this cancer, we still expect the incidence to continue to rise in the coming decades before we really start seeing numbers begin to decrease as a result of the vaccine. So this is an alarming trend for which oncologists will continue to see likely more and more cases and new diagnoses every year. So we wanted to review the most recent literature and provide oncologists up to date recommendations for how they can best take care of patients with a new diagnosis of localized anal cancer. Brittany Harvey: Absolutely. I appreciate that background and context to set the stage for this guideline. So then next I'd like to review the key recommendations of this guideline. So starting from the first clinical question, what are the recommended radiosensitizing, doublet or single chemotherapy agents for patients with stage I to III anal cancer? Dr. Van Morris: It's true that really the standard treatment for patients with localized anal cancer has not changed over the last literally half century. When the Nigro regimen was first reported back in 1974, 50 years ago, the standard of care for patients with a new diagnosis of localized anal cancer centers around concurrent chemotherapy and radiotherapy. And we looked at the various randomized control trials and the highest level of evidence which has been reported over the past decades, and really for most patients, the standard of care continues to remain doublet cytotoxic chemotherapy in combination with radiation. We reported that the most commonly, and I think most accepted, regimen here is a combination regimen of 5-FU, intravenous 5-fluorouracil with mitomycin C. And this most commonly is given on a week 1 to 5 regimen. The 5-FU, we recommended a dose of 1000 milligrams per meter squared per day on days 1 to 4 and then on days 29 to 32 of the radiation treatment. And then the mitomycin C, looking at various trials, has been given at a dose of 10 milligrams per meter squared on day 1 and day 29, or alternatively a single dose of mitomycin C at 12 milligrams per meter squared on day 1. I think that the thing that's important for clinicians and patients alike to remember is that this chemotherapy can be very toxic in patients who are undergoing a curative-intent therapy for this diagnosis of localized anal cancer. I think it's just important for oncologists to be watching closely the blood counts for the patients to make sure that the myelosuppression doesn't get too bad. And then in select cases, if that is the case, when the oncologist opts to go for the day 1 and day 29 dosing, it may be prudent, if the myelosuppression is too excessive, to consider withholding that day 29 dose. Brittany Harvey: Great. Thank you for providing those recommendations along with some of those dosing and the schedule recommendations from the expert panel. So are there any other alternate dose or schedule recommendations from the expert panel? Dr. Van Morris: Yeah, but I think that we saw with the ACT II data that was a randomized trial that was done out of the UK that compared 5-FU mitomycin with 5-FU cisplatin as two different doublet cytotoxic regimens, that overall outcomes were very similar between the two regimens in terms of curative outcomes for patients treated whether 5-FU mitomycin or 5-FU cisplatin. So certainly there is evidence supporting the use of cisplatin as a second cytotoxic agent with 5-fluorouracil. In the ACT II study that was given at a dose of 60 milligrams per meter squared on days 1 and 29 along with the 5-FU at the regimen I talked about previously. There is other lower level of evidence data suggesting that even the 5-FU and cisplatin can be given on a weekly schedule and that that can be safe. Actually, at my institution at MD Anderson, that is our standard practice pattern as well. There's also the option when we're thinking about giving pelvic radiation for patients with lower GI cancers, many oncologists in the treatment of localized rectal adenocarcinoma are accustomed to using capecitabine as a chemosensitizer in patients with localized rectal cancer. If I'm giving chemoradiation for a patient with localized anal cancer, can I substitute the intravenous 5-FU with oral capecitabine? And although the evidence is not as strong in terms of available data with regards to randomized controlled trials, there certainly is data that suggests that capecitabine may be an acceptable alternative in lieu of intravenous 5-fluorouracil that would be given at a dose of 825 milligrams per meter squared on days of radiation. But certainly, I think that that's a feasible approach as well and maybe even associated with less hematologic toxicity than intravenous 5-FU would be. Brittany Harvey: Great. It's important to understand all the options that are out there for patients with early-stage anal squamous cell carcinoma. So in addition to those chemoradiation recommendations, what is recommended from the expert panel regarding induction chemotherapy or ongoing adjuvant chemotherapy for this patient population? Dr. Van Morris: When we think about treating patients with lower GI cancers with curative intent therapies, when we think about the more common rectal adenocarcinoma, oncologists may be used to giving chemoradiation followed by subsequent cytotoxic chemotherapy. But actually when you look at the data for anal cancer, really there's not any data that strongly supports the use of either induction chemotherapy prior to chemoradiation or adjuvant post-chemoradiation chemotherapy. The RTOG 98-11 study was a trial which evaluated the role of induction 5-fluorouracil prior to chemoradiation and did not show any survival benefit or improved outcomes with the use of induction chemotherapy in a randomized control trial setting. The ACT II trial, which I referenced earlier, was a 2 x 2 design where patients were either randomized to concurrent chemoradiation with 5-FU mitomycin C or concurrent chemoradiation with 5-FU cisplatin. But then there was a second randomization after chemoradiation where half of the study participants received adjuvant cisplatin 5-fluorouracil after completion of their chemo radiation, or the other half were randomized to the standard of care, which of course would be observation. And what that trial showed was that there was no added benefit with the addition of post-chemoradiation cytotoxic chemotherapy. So we look at these data and say that in general, for the general population of patients with localized stages I to III anal cancer, there really is no supporting data suggesting benefit of either induction chemotherapy or adjuvant chemotherapy. And to that end, really it's concurrent chemoradiation remains the standard of care at this time for patients with a new diagnosis of localized anal cancer. Brittany Harvey: Absolutely. It's just as important to know what is not recommended as it is to know what is recommended for these patients. And so I thank you for explaining the evidence behind that decision from the panel as well. So then, are there any other considerations for special populations that oncologists should consid