Improving Social Functioning in People With Substance Use and Mental Health Disorders Using Virtual Reality (ROPVR): Study Protocol for a Multi-centre, Pragmatic Randomized Controlled Trial

Participants randomized to the intervention arm will attend VR sessions twice a week in 5 weeks, or 10 sessions in total. They will be placed into different virtual environments with increasing complexity, where they will be confronted with normal everyday situations in city environments.

In the first session, participants will receive instructions on using the head mounted display and navigating the scenarios. In three scenarios, participants are only observers, while in the remaining they can choose between several response options. These responses will be displayed on the screen, and participants can select their preferred response by pointing their finger to the chosen response alternative. The response alternatives are also provided verbally.

Treatment of substance use disorders (SUD) is delivered by personnel with medical, psychological, and social expertise, meeting specialist-level healthcare standards. SUD treatment clinics offer patient-centred, interdisciplinary, holistic treatment focusing on physical, mental and social problems. Treatment often consists of both individual and group therapies and include activities (e.g., physical exercise, social activities) in the clinic as well as in external settings. Since treatment approaches and facilities may vary across clinics, patients' preferences or choice of clinic are emphasized. According to national guidelines, persons with SUD and co-occurring severe mental illness (i.e., schizophrenia or severe bipolar disorder) can receive treatment in SUD treatment clinics as long as their mental condition is stable. Otherwise, persons with SUD and severe mental illness receive treatment for both conditions within mental health services.