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Shilpa Gupta, MD, on Urothelial Cancer: Defining Who Is 'Platinum-Ineligible'

2022 ASCO Annual Meeting

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Shilpa Gupta, MD, of the Cleveland Clinic Foundation, discusses an updated consensus definition for standard therapy and clinical trial eligibility for patients with metastatic urothelial cancer who are platinum-ineligible, criteria that are proposed to guide treatment recommendations for this population. This may be especially important now that the U.S. Food and Drug Administration has restricted the use of first-line pembrolizumab to those who are considered platinum-ineligible (Abstract 4577).



Transcript

Disclaimer: This video transcript has not been proofread or edited and may contain errors.
Frontline therapy for patients with metastatic urothelial cancer who are Cisplatin ineligible has continued to evolve. And the current standard of care is Gemcitabine and Carboplatin chemotherapy followed by durvalumab maintenance. In 2017, Atezolizumab and Pembrolizumab were approved as single agents for this patient population. But then the label was restricted to patients who are Cisplatin ineligible with high PD-L1 expressing tumors, or those who are not eligible for any platinum. And now Pembrolizumab use is only restricted to patients who are platinum-ineligible. Back in 2019, we presented results from our survey for defining platinum-ineligibility by sending a survey out to around 60 US-based medical oncologists. And we presented a consensus definition at GU ASCO that year. And now with the changing landscape, we updated the survey and used the similar cohort of responders to provide a consensus definition update. So we ask questions like: what equal performance status would physicians use to deem someone platinum-ineligible? What creatinine clearance cutoff would they use? What peripheral neuropathy cutoff, heart failure, cutoff? And in any person with ECOG performance status two, what would be the creatinine clearance cutoff? And based on the majority of responses, we found that most physicians found that creatinine clearance less than 30 milliliters per minute, peripheral neuropathy greater than are equal to grade two, significant heart failure that is NYHA class three or higher, equal performance status greater than our equal to three, and in a patient with equal performance status two, creatinine clearance of less than 30 milliliters per minute. Those were the factors that would make them hesitant to use Carboplatin. So we proposed that if any one of these criteria are met, that patient can be deemed as platinum-ineligible and be a candidate for single agent immunotherapy. Otherwise, we offered Gemcitabine and Carboplatin followed by durvalumab maintenance. Notably age was not a cutoff for these patients based on our survey.

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