Kura Oncology reports Phase 1a data on darlifarnib combo in RCC

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Kura Oncology Reports Durable Clinical Activity of Darlifarnib Plus Cabozantinib in Cabozantinib-Naïve Clear Cell Renal Cell Carcinoma Patients at KCRS 2026

July 27, 2026 6:32 AM EDT

Response rates up to 50% across evaluated dose levels and median PFS of 13 months observed in pre-treated, cabozantinib-naïve, locally advanced or metastatic ccRCC patients

Activity compares favorably with historical outcomes for TKI and HIF-2 monotherapies -

Combination was well tolerated and safety profile consistent with reported profiles of the individual agents

Findings support potential for darlifarnib to enhance activity of VEGFR-targeted therapies in second- and third-line RCC settings

Global, randomized Phase 1b study underway to establish recommended Phase 3 dose

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