Overview Aim to Reduce Movements in Tardive Dyskinesia Status: Completed Trial end date: 2015-05-01 Target enrollment: Participant gender: Summary The purpose of this study is to determine whether an investigational drug, SD-809 (deutetrabenazine), will reduce the severity of abnormal involuntary movements of tardive dyskinesia. Phase: Phase 2/Phase 3 Details Lead Sponsor: Auspex Pharmaceuticals, Inc.