PF-06651600 DDI with Oral Contraceptives in Healthy Females

Phase 1, randomised, open-label trial of ritlecitinib tosilate in alopecia areata (2 arms), sponsored by Pfizer. Primary endpoints: Area Under the Curve From Time Zero to Extrapolated Infinite Time (AUCinf) for EE at 96 hours and Area Under the Curve From Time Zero to Extrapolated Infinite Time (AUCinf) for LN at 96 hours. Started Aug 2019; status: completed.