Extended-Release Buprenorphine vs. Sublingual Buprenorphine for the Treatment of Opioid Use Disorder

The study is 12-week, randomized, open-label study comparing injectable extended-release buprenorphine (Sublocade) to standard therapy (sublingual buprenorphine), to see if Sublocade will be more helpful in treating opiate use for individuals testing positive for fentanyl and related high potency drugs (HPSO). Those receiving Sublocade will have it administered monthly and dosing will be according to the FDA prescribing instructions of 300mg for the first and second dose and 100mg for the third. Individuals receiving sublingual buprenorphine will receive standard dosing for the entire treatment trial. Participants will be asked to attend the clinic for the first 4 days during week 1 and twice weekly for the remainder of the trial.