Substance use disorder (SUD) encompasses harmful or hazardous use of psychoactive substances (including alcohol, cocaine, marijuana, stimulants, benzodiazepines and opiates) and is defined in DSM criteria with severity levels: mild (2–3 criteria), moderate (4–5), and severe (6 or more). Treatments include behavioral counseling, skills training, medication (including medication-assisted treatment for opioid use disorder), management of withdrawal, treatment for co-occurring mental health issues, and long-term follow-up.
Common psychosocial treatments include cognitive-behavioral therapy (CBT), the community reinforcement approach (CRA), and contingency management. CBT targets thoughts and behaviors linked to substance use and teaches coping skills; CRA enhances non-drug reinforcement (employment, social relations, recreation) and has shown greater effectiveness than usual care for certain substances; contingency management uses immediate positive reinforcement (including modest monetary incentives) to increase abstinence and retention and is often combined with other psychosocial approaches.
Regulatory context: Software as a Medical Device (SaMD) is software intended for medical purposes without being part of a hardware device. FDA’s Center for Devices and Radiological Health applies a risk-based approach to SaMD and has piloted a Software Pre-Cert program to streamline review for pre-certified organizations.
FDA status for relevant prescription digital therapeutics: reSET (Pear Therapeutics) received de novo marketing clearance in 2017 as a prescription digital therapeutic providing CBT as an adjunct to contingency management for outpatient SUD (DEN160018). reSET‑O was cleared via 510(k) in 2018 as a prescription digital therapeutic to increase retention in outpatient treatment for opioid use disorder when used with transmucosal buprenorphine and contingency management (K173681).