Overview A Study to Evaluate the Efficacy of Sage-217 in the Treatment of Adult Participants With Major Depressive Disorder (MDD) Status: Completed Trial end date: 2021-04-21 Target enrollment: Participant gender: Summary The purpose of this study to evaluate the efficacy of SAGE-217 in the treatment of participants with MDD. Phase: Phase 3 Details Lead Sponsor: Sage Therapeutics