Overview Study Evaluating Oral MOA-728 in Subjects on Methadone Therapy Status: Withdrawn Trial end date: 2007-12-01 Target enrollment: Participant gender: Summary To evaluate the effects of single oral doses of MOA-728 compared to a positive control in subjects on methadone therapy. Phase: Phase 1 Details Lead Sponsor: Bausch Health Americas, Inc.Valeant Pharmaceuticals International, Inc.Treatments: Methadone