In pts with FGFR2F, confirmed ORR was 21.4% (95% CI 13.9, 30.5), DCR 75.7% (95% CI 66.3, 83.6), mPFS 8.0 mo (95% CI 5.5, 8.3) and mOS 17.2 mo (95% CI 12.5, 22.4).In pts with FGFR2MA, confirmed ORR was 6.5% (95% CI 0.8, 21.4), DCR 58.1% (95% CI 39.1, 75.5), mPFS 8.3 mo (95% CI 1.9, 16.7) and mOS 15.9 mo (95% CI 8.4, NE).Derazantinib results in meaningful clinical benefit for pts with FGFR2 genetic aberrations including FGFR2F and FGFR2MA. Derazantinib-related toxicities were limited: PPE, stomatitis, retinal or nail toxicity were infrequent in the study population.