The is a pilot, 12-week, double-blind, placebo-controlled, randomized trial of individuals with opioid use disorder (OUD) newly initiating buprenorphine to receive either weekly injections of semaglutide (n=23) or matching placebo (n=23). The primary aim is to determine the effects of semaglutide on cue-reactivity among individuals with OUD. The secondary aim is to assess the preliminary efficacy, safety, and tolerability of semaglutide for OUD.