Usability and feasibility of a take-home methadone web-application for opioid treatment program patients: A Small Business Innovation Research mixed methods study.

Background: Most patients in opioid treatment programs (OTPs) attend daily for observed dosing. A Stage IA (create and adapt) and a Stage IB (feasibility and pilot) mixed method studies tested a web-application (app) designed to facilitate access to take-home methadone.

Methods: A Stage IA, intervention development study, used qualitative interviews to assess the usability (ease of use) and feasibility (ability to implement) of a take-home methadone app.