Survival, response duration, and activity by BRAF mutation (MT) status of nivolumab (NIVO, anti-PD-1, BMS-936558, ONO-4538) and ipilimumab (IPI) concurrent therapy in advanced melanoma (MEL).
2014
LBA9003^ Background: We report updated survival and clinical activity in initially enrolled cohorts and activity by BRAF MT status in a phase I trial of concurrent and sequenced NIVO + IPI. Methods: MEL pts (n=53, enrolled 2009-2012, data analysis Dec 2013) with ≤3 prior therapies received IV concurrent NIVO + IPI, Q3Wk × 4 doses, followed by NIVO Q3Wk × 4. At wk 24, NIVO + IPI continued Q12Wk × 8 in pts with disease control and no DLT. Tumor responses were evaluated by WHO and immune-related criteria. Results: Pt characteristics included stage M1c: 55% and prior systemic therapy: 40%. Across doses, 1- and 2-y OS rates were 82% and 75%. Clinical activity was similar to previous reports except CRs rose to 9/53 (17%). Pts with/without tumor BRAF MT (n=36) had similar activity (Table). By wk 36, 42% demonstrated ≥80% tumor reduction. Median duration of response (DOR) was not reached (NR). Of 22 pts with objective response, 14 (64%) had DOR ≥24 wk (range: 25+, 106+). Treatment-related adverse events were as r...
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