The CTN-0055 CHOICES pilot study demonstrated the feasibility of extended-release naltrexone (XR-NTX) for treatment of opioid use disorder in HIV primary care. The CTN-0067 CHOICES scale-up study builds on lessons learned from the pilot and uses the Consolidated Framework for Implementation Research to advance understanding of XR-NTX adoption in HIV primary care clinics. The study is an open-label, randomized, comparative effectiveness trial of office-based XR-NTX for 24 weeks (6 monthly injections) versus treatment as usual (TAU) in HIV-infected participants with untreated opioid use disorder. Each participant will be engaged in the overall study for 25 to 28 weeks, depending on the speed of screening and enrollment procedures.

This study will evaluate the concurrent validity of a PDMP-based opioid risk metric as a clinical measure of high risk opioid use and establish clinically useful risk-level thresholds relative to the widely validated gold standard of the World Health Organization Alcohol, Smoking, and Substance Involvement Screening Test (WHO ASSIST). This study is a one group, cross-sectional, health assessment study. Participants who enroll in the study will complete on-line surveys at a single time point. Approximately 1,523 patients will be recruited from approximately 15 community community pharmacies. Trained pharmacy staff will inform potentially eligible participants, or individuals receiving at least one prescription(s) for potentially eligible participants, of the survey opportunity. Patients recruited will complete validated measures to assess opioid use and risk behaviors, substance use, and physical and mental health. A series of a priori analyses will be conducted to evaluate the validity of the PDMP-based opioid risk metric relative to the widely validated gold standard WHO ASSIST and to identify cutoff thresholds. Correlational, regression, and Cohen's Kappa statistical analyses will also be conducted to evaluate the relationship between the risk metric and the WHO ASSIST.