Saturday, November 23, 2024
11/23/2024
Project summary We propose to build upon the STAR-OM study (R01 DA050486) to assess if providing psycho-behavioral interventions and medications for people with primary methamphetamine use disorder (MUD) and without opioid use disorder (OUD) at methadone clinics is feasible and acceptable. In Vietnam and many US settings, clinics providing medication for OUD (especially methadone clinics) are the only viable option for evidence- based addiction treatment. Importantly, many of these clinics are at primary care level and therefore accessible to people with primary MUD, who are in dire need for effective treatment. Furthermore, providers in methadone clinics are capable of conducting psycho-behavioral interventions, which remain the first line of treatment for MUD, and prescribing medications should these medications become available and approved by authorities. It remains unknown, however, if methadone clinics could serve as treatment facilities for those with primary MUD. In this Supplement to our STAR-OM study, we will 1) assess the feasibility and acceptability of three recruitment strategies to enroll people with MUD and without OUD in MUD treatment at methadone clinics and 2) explore the feasibility and acceptability of providing psycho-behavioral interventions as well as challenges in providing medications at methadone clinics for people with MUD and without OUD. In Aim 1, we will screen 600 people with primary MUD recruited through three strategies (peer outreach, snowballing and social media) over 3 months to enroll 60 people with MUD and without OUD into the study interventions. Participants will be screened at MMT clinics for meth use and readiness for MUD intervention. We will monitor recruitment rate for each strategy to assess feasibility. We will assess acceptability through focus group discussions with people who support recruitment (N=2 focus group with 12-16 participants), in-depth interviews with individuals eligible for enrollment and agree or decline to participate in the study interventions (N=15, 5 per recruitment strategy). In Aim 2, consenting participants will be randomized 1:1:1 into three arms of interventions over 12 weeks: (1) contingency management only; (2) group-based Matrix plus contingency management; and (3) individual- based Matrix plus contingency management. All participants will be required to provide urine samples randomly once a week. We will monitor participation and retention rate in each treatment arm and completion of urine drug screens to assess feasibility. We will assess acceptability through post-intervention in-depth interviews with 15 participants, focus groups with methadone providers who deliver behavioral interventions (N = 1 focus group with 6-8 participants), and in-depth interviews with policy makers at national and city levels (N=5). In addition, we will ask participants in these interviews and focus groups about the challenges and facilitators of providing medications for treatment of MUD at MMT clinics should they become available. Findings from this Supplement will be used to prepare for a larger trial to assess effectiveness of implementing psycho-behavioral interventions for people with primary MUD and without OUD at methadone clinics.
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