Accelerated Intermittent Theta-Burst Stimulation for Opiate Use Disorder

The proposed study aims to investigate the effectiveness of aiTBS applied to either the L-DLPFC or the ACC for reducing SI in individuals with OUD and identify neural functional connectivity changes underlying treatment response. 30 individuals with OUD who endorse suicidal ideation will be recruited. The accelerated iTBS treatment will involve 10 daily sessions of iTBS. Stimulation will be delivered to either the ACC or the L-DLPFC for 5 consecutive days. Suicidal ideation, depressive symptoms and opiate misuse will be measured before and after the 5-day stimulation course. Functional magnetic resonance imaging (fMRI) scans will also be carried out before and after stimulation to examine aiTBS-induced changes in neural functional connectivity. Changes in suicidal ideation, depressive symptoms and opiate misuse will be measured using both clinician-rated and self-report assessments.