Background — clinical context: Substance use disorder (SUD) is the harmful or hazardous use of psychoactive substances (including alcohol, cocaine, marijuana, stimulants, benzodiazepines, and opiates). The APA DSM characterizes SUD by a set of criteria (mild: 2–3 criteria; moderate: 4–5; severe: 6 or more). Treatment approaches include behavioral counseling, skills training, medication (including methadone, buprenorphine, naltrexone for OUD), treatment for withdrawal, co-occurring mental health issues, and long-term follow-up.
Behavioral treatments: Cognitive-behavioral therapy (CBT) is an established psychosocial intervention with demonstrated positive effects for SUD; goals include identifying thoughts/behaviors linked to use and building coping skills. The community reinforcement approach (CRA) is a CBT-based intervention that increases non-drug reinforcement to support abstinence. Contingency management (motivational incentives) provides immediate positive reinforcement (from verbal acknowledgement to monetary incentives) to encourage abstinence and attendance and is often used to augment CRA; combinations of CRA plus contingency management have been shown to be particularly effective in some settings.
Regulatory context for SaMD: Software as a Medical Device (SaMD) is defined as "software that is intended to be used for one or more medical purposes that perform those purposes without being part of a hardware medical device" (IMDRF definition). FDA has a risk-based approach to regulating SaMD, focusing review on higher-risk mobile medical apps; lower-risk wellness apps are generally not enforced as medical devices. The agency has piloted a pre-certification program to streamline review for validated software manufacturers.
FDA-cleared products referenced: reSET received de novo marketing clearance in 2017 to provide CBT as an adjunct to contingency management for SUD (DEN160018). reSET-O was cleared via 510(k) in 2018 as a prescription digital therapeutic to increase retention in outpatient OUD treatment when used as an adjunct to transmucosal buprenorphine and contingency management (K173681).