Arcus shares kidney cancer trial data for casdatifan drug

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Arcus Presents New Data from ARC-20 that Demonstrate the Opportunity for Casdatifan to Become a Foundational Treatment Across All Lines of Therapy in Kidney Cancer

October 20, 2026 8:30 AM EDT

Progression-free survival (PFS) for casdatifan plus anti-PD-1 in the first-line (1L) setting exceeded third-party benchmarks* for the approved anti-PD-1 plus anti-CTLA-4 regimen (ipilimumab plus nivolumab) and is similar to benchmarks for approved anti-PD-1 plus TKI regimens; the Phase 3 PEAK-20 study evaluating casdatifan plus ipilimumab and nivolumab is on track to start by year-end. PFS and overall survival (OS) in the second-line (2L) cohort evaluating casdatifan plus cabozantinib substantially exceeded benchmarks for cabozantinib monotherapy, including in patients who had previously progressed on TKIs; the ongoing Phase 3 PEAK-1 study is evaluating the same combination in the same patient... More