| Recruiting | N/A | 1000 | US | Medication for Opioid Use Disorder, MOUD, MISSION Critical Time Intervention, CTI, MISSION Peer Support, PS, MISSION Dual Recovery Therapy, DRT | University of Massachusetts, Worcester, National Institute of Mental Health (NIMH), University of Massachusetts, Lowell, Cornell University, Harvard Medical School (HMS and HSDM) | Opioid Use Disorder, Mental Health Disorder | 06/25 | 08/25 | | |