Overview A Long-Term Safety and Tolerability Study of ALKS 3831 in Adults With Schizophrenia Status: Completed Trial end date: 2018-06-29 Target enrollment: Participant gender: Summary The primary objective of this study is to evaluate the long term safety and tolerability of ALKS 3831 in subjects with schizophrenia. Phase: Phase 3 Details Lead Sponsor: Alkermes, Inc.