A Retrospective and prospective, obsErvational (non-interventional), post-authorization Safety cohort sTudy to evaluate the incidence of the breAkages and insertion/Removal complications of buprenorphine implants in rouTine clinical care (RE-START) First published 19/04/2024 Last updated 09/02/2026 EU PAS number:EUPAS1000000092 Study Discontinued