Overview A Hepatic Impairment Study for PF-04965842. Status: Completed Trial end date: 2019-04-30 Target enrollment: Participant gender: Summary This is a Phase 1 non randomized, open label, single dose, parallel cohort study to investigate the effect of hepatic impairment on the PK, safety and tolerability of PF 04965842. Phase: Phase 1 Details Lead Sponsor: PfizerTreatments: Abrocitinib