Pts are enrolled into cohort A (FGFR2 translocations), cohort B (other FGF/FGFR genetic alterations [GA]), or cohort C (no FGF/FGFR GAs) and receive oral INCB054828...Of 45 evaluable pts in cohort A, 8 (18%) had a confirmed partial response (PR; 1/8 with unconfirmed complete response) and 26 (58%) had stable disease (3/26 had unconfirmed PRs); the best ORR was 24% (95% CI, 12%–37%). Median PFS was 6.8 months (95% CI, 3.6–9.2 months)....INCB054828 was generally well tolerated and showed preliminary efficacy in pts with previously treated advanced iCCA with FGFR2 translocations.