Overview Blocking Mifepristone Action With Progesterone Status: Terminated Trial end date: 2019-08-15 Target enrollment: Participant gender: Summary Double-blind randomized trial to evaluate the potential impact of progesterone treatment on early pregnancies exposed to mifepristone. Phase: Phase 1/Phase 2 Details Lead Sponsor: University of California, DavisCollaborators: AtheniumSociety of Family PlanningTreatments: MifepristoneProgesterone