This study (NCT02872714) is enrolling pts with metastatic or unresectable UC who failed ≥ 1 therapy or are platinum ineligible and have FGFR3 mutations/fusions (cohort A, n = 100) or other FGF/FGFR GAs (cohort B, n = 40)....Best overall responses in cohort A were 7 confirmed partial responses (PRs), 6 unconfirmed PRs (ongoing), and 17 stable disease (10 ongoing). ORR, including unconfirmed PRs, was 25% (95% CI, 14%–40%).