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White Blood Cell Growth Factors Guideline Update

Dr. Bishal Gyawali and Dr. Tessa Cigler share the new, comprehensive, evidence-based update of the ASCO guideline on the use of hematopoietic colony-stimulating factors in patients with cancer. They discuss recommendations on primary prophylaxis, secondary prophylaxis, and treatment of febrile neutropenia along with stem cell mobilization, efficacy, safety, duration, dosing, and administration of CSFs – including biosimilars. They highlight where it is appropriate to use a CSF, and importantly, when not to use a CSF. They touch on the significance of individual patient considerations and cost implications, and future work to refine the risk factors for the development of complications of febrile neutropenia. Read the full guideline, “White Blood Cell Growth Factors: ASCO Guideline Update” at www.asco.org/supportive-care-guidelines TRANSCRIPT This guideline, clinical tools and resources are available at www.asco.org/supportive-care-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-... 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. Bishal Gyawali from Queen's University in Kingston, Ontario, Canada, and Dr. Tessa Cigler from Weill Cornell Medicine in New York, New York, co-chairs on "White Blood Cell Growth Factors: ASCO Guideline Update." Thank you for being here today, Dr. Gyawali and Dr. Cigler. Dr. Bishal Gyawali: Thank you very much for having me. It's a pleasure. Dr. Tessa Cigler: Hi there. Nice to be here as well. Brittany Harvey: Great. 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. Cigler and Dr. Gyawali, 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 I'd like to dive into the guideline that we're here today to talk about. So first, what prompted an update to this guideline on the use of hematopoietic colony-stimulating factors in patients with cancer, and what is the scope of this updated guideline? Dr. Bishal Gyawali: The last version of the guidelines from ASCO on this topic was back in 2015, so it has been more than a decade since ASCO had a guideline on the use of G-CSF in patients with cancer receiving treatment. So it was due for an update because there has been a lot more evidence based on not necessarily new drugs, but evidence for proper timing of these agents and the duration of these agents, as well as there have been a lot of new biosimilars, and there are questions about are these biosimilars equivalent or how do we choose among these different options. One is that content of the evidence that has evolved over time in the last decade, but also I think the last time we had these guidelines, the ASCO guidelines were not incorporated to have those evidence GRADE tables. So the quality of the ASCO guidelines itself has evolved over the years, so we wanted to have a new version of the guideline that includes not only the new evidence, but also contains those evidence GRADE tables that will help to quantify the benefits. And so I think it was high time, and even more than that, the newer ASCO guidelines for any guideline, they also include considerations of cost, access, equity, and all these factors that were not included in the previous version of the guideline. So I think it's only natural that with time the guideline should also evolve. Dr. Tessa Cigler: I agree completely, and just as a framework, as we all know, neutropenia and its complications, including febrile neutropenia and infections, are still an important toxicity of many myelosuppressive chemotherapies. And these neutropenic complications do require prompt evaluation and treatment and often hospitalization, and we know that hematopoietic colony-stimulating factors, which I'm going to refer to as growth factors, can reduce the duration and severity of neutropenia and the risk of febrile neutropenia, so it remains an important topic in the practice of clinical oncology. Brittany Harvey: Absolutely. It's an important topic for both clinicians and for patients who are receiving treatment for their cancer. And as you said, there was a substantial amount of literature to review here and updating everything to be in line with the GRADE evidence rating system, so...