Overview Study of Adjunctive or Monotherapy Rapastinel Treatment in Patients With Major Depressive Disorder (MDD) Status: Terminated Trial end date: 2019-07-03 Target enrollment: Participant gender: Summary Multicenter, open-label, long-term extended access treatment protocol in adult patients with a primary diagnosis of MDD. Phase: Phase 3 Details Lead Sponsor: Naurex, Inc, an affiliate of Allergan plc