Overview Absorption and Systematic Pharmacokinetics of IDP-121 Lotion in Subjects With Acne Vulgaris Status: Completed Trial end date: 2016-10-01 Target enrollment: Participant gender: Summary Open-Label study designed to assess the safety and plasma PK of tretinoin and relevant metabolites after topical dermal application of IDP-121 lotion. Phase: Phase 1 Details Lead Sponsor: Bausch Health Americas, Inc.Valeant Pharmaceuticals International, Inc.