EXHIT ENTRE Comparative Effectiveness Trial

The study will randomize approximately 314 hospitalized men and women ages 18 years and older with opioid use disorder (OUD) moderate or severe and who have not been taking prescribed medication for OUD (MOUD) for 14 days or more prior to hospitalization. Eligibility will be determined over one or more assessments during the index hospitalization. Once eligibility has been determined, participants will be randomized 1:1 to either a single injection of extended-release buprenorphine or TAU, which will include methadone, sublingual buprenorphine, or naltrexone. Connection to OUD care and ongoing MOUD following hospitalization will be per community standard. Participants will be assessed for engagement in OUD treatment by the presence of a legitimately prescribed MOUD on day 34 following hospital discharge. Further outcomes will be assessed at 90 and 180 days following hospital discharge.