Phase 2, Open-Label, Single-Arm, Multicenter Study to Evaluate the Efficacy and Safety of Pemigatinib in Participants With Previously Treated Glioblastoma or Other Primary Central Nervous System Tumors Harboring Activating FGFR1-3 Alterations (FIGHT-209)

GBM or primary CNS w/FGFR1-3

This is an open-label, monotherapy study of pemigatinib in participants with recurrent glioblatoma (GBM) or other primary CNS tumors with an activating FGFR1-3 mutation or fusion/rearrangement. This study consists of 3 cohorts, Cohorts A, B, and C, and will enroll approximately 82, 82, and 25 participants into each cohort, respectively. Participants will receive pemigatinib 13.5 mg QD on a 2-week on-therapy and 1-week off-therapy schedule as long as they are receiving benefit and have not met any criteria for study withdrawal.

Inclusions/Exclusions: Measurable disease by RANO. KPS 60 or greater.

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