Extended-release buprenorphine induction in opioid non-tolerant incarcerated individuals

Buprenorphine maintenance treatment remains unavailable in most jails in the US. We provide data on a four-day rapid sublingual buprenorphine (SL-B) induction strategy followed by a weekly dose of extended-release injectable buprenorphine (XR-B) with incarcerated individuals with opioid use disorder (OUD) who were not opioid tolerant.

Between October 2020 to April 2024, N = 65 individuals with an opioid use disorder in jails participating in a larger randomized, controlled trial received SL-B and XR-B prior to release. Primary outcomes included completing the proposed dose induction and any reported adverse events (AEs).

Sixty-five individuals received SL-B dose induction from our team's medical staff, 53 (81.5 %) completed the four-day SL-B dose induction and received their first weekly XR‑B injection on day 5. Of the 65 individuals, 10 (15.38 %) participants reported AEs during the dosing period and/or in the week following the dosing period. All but one of the AEs were rated as mild. One participant experienced a serious adverse event in the week following dose induction. The study medical team determined that this was unlikely to be related to the intervention.

Overall, our study findings demonstrate the feasibility of implementing a four-day sublingual dose induction followed by a weekly XR-B injection with incarcerated individuals who are not opioid tolerant. This study provides important data to illustrate a dose induction strategy that might assist in reducing illicit diversion in jails, which is a main barrier to buprenorphine delivery cited by correctional administrators.