Overview Study Comparing Premarin®/MPA, PREMPRO® and Provera® in Healthy Postmenopausal Women Status: Completed Trial end date: 2007-12-01 Target enrollment: Participant gender: Summary The purpose of the study is to evaluate the safety and efficacy of new tablet formulations of Premarin®/medroxyprogesterone (MPA). Phase: Phase 1 Details Lead Sponsor: Wyeth is now a wholly owned subsidiary of PfizerCollaborator: MDS Pharma ServicesTreatments: Estrogens, Conjugated (USP)MedroxyprogesteroneMedroxyprogesterone Acetate