Overview A Study of VIVITROL in the Prevention of Re-arrest and Re-incarceration Status: Completed Trial end date: 2014-05-01 Target enrollment: Participant gender: Summary This phase 4 study will evaluate the feasibility of initiating subjects on VIVITROL in prison and continuing VIVITROL upon release into the community. Phase: Phase 4 Details Lead Sponsor: Alkermes, Inc.Treatments: Naltrexone