Overview A Study to Evaluate SAGE-217 in Adult Participants With Major Depressive Disorder (MDD) Status: Recruiting Trial end date: 2022-02-01 Target enrollment: Participant gender: Summary This is a Phase 3, open-label, 1-year study of the safety, tolerability, and need for re-treatment with SAGE-217 in adult participants with MDD. Phase: Phase 3 Details Lead Sponsor: Sage Therapeutics