Clinical trial Recruiting at 1 site Interventional Ages 18 and up

Using virtual reality avatars to help reduce cannabis use in patients with psychotic disorders

Official title: A Randomized Controlled Trial Comparing Avatar Intervention to an Addiction Supportive Intervention to Reduce Cannabis Use in Patients With Psychotic Disorders

Run by Ciusss de L'Est de l'Île de Montréal · NCT05704582 · Data updated 2026-11-12

This study is testing if using virtual reality avatars can help people with psychotic disorders reduce their cannabis use more effectively than regular support.

Quick facts

Study typeInterventional
Ages18 Years and up
SexAll
Enrollment150 (estimated)
SponsorCiusss de L'Est de l'Île de Montréal
Academic / other
Locations1 site (Montreal, Quebec)
StatusRecruiting
StartedFebruary 1, 2023
Main results expectedJanuary 2027
Study endsJanuary 2028
Registry record updatedFebruary 7, 2024
Trial IDNCT05704582 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates for this study are adults over 18 who meet the DSM-5 criteria for cannabis use disorder and have a diagnosis of schizophrenia, schizoaffective disorder, or bipolar disorder with psychotic symptoms.

Probably not a fit

Patients currently undergoing treatment for substance use disorders other than cannabis or those with severe neurological disorders may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This clinical trial aims to compare the effectiveness of a novel Avatar Intervention against a supportive intervention in reducing cannabis use among patients diagnosed with psychotic disorders. The study will employ a single-blind randomized controlled design, focusing on patients who meet the DSM-5 criteria for cannabis use disorder and specific psychotic disorders. The Avatar Intervention leverages virtual reality to provide experiential and relational support, addressing the unique challenges faced by this population. Primary outcomes will include reductions in cannabis use, severity of cannabis use disorder, and improvements in quality of life, with additional analyses on various psychosocial factors.

Why it matters

Potential benefit: If successful, this intervention could significantly reduce cannabis use and improve the quality of life for patients with psychotic disorders.

How similar studies have gone: While there is limited evidence on the specific use of virtual reality avatars for this purpose, innovative interventions for cannabis use disorder in psychotic populations are critically needed, suggesting a novel approach.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Males or females over 18 years of age who meet the DSM-5 criteria for CUD (≥4 criteria) ;
* Patients will meet the DSM-5 criteria for schizophrenia, schizoaffective disorder, or bipolar disorder with psychotic symptoms. Diagnoses will be established with the Structured Interview for DSM-5 (SCID-5).

Exclusion Criteria:

* Current SUD for a substance other than cannabis ;
* Ongoing pharmacological or psychological treatment for CUD ;
* Ongoing detoxification for cannabis withdrawal ;
* Presence of neurological disorders ;
* Presence of a severe and unstable physical illness ;
* Inability to provide consent.

Where it's running

  • Research center of the Institut universitaire en santé mentale de Montréal
    Montreal, Quebec, Canada
    Recruiting

Study contacts

  • Principal investigator: Alexandre Dumais, MD, PhD — University of Montreal, Institut universitaire en santé mentale de Montréal
  • Study coordinator: Alexandre Dumais, MD, PhD
  • Email: contact@avatar-intervention.ca
  • Phone: 514-251-4000

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.