Brain scans reveal what happens when cannabis users with psychosis go cold turkey
NCT ID NCT05445180
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looks at how stopping cannabis use for 28 days changes brain activity and memory in people with psychosis and in cannabis users without psychosis. Participants are randomly assigned to either quit cannabis or continue using, and undergo brain scans before and after the 28-day period. The goal is to understand the brain processes behind cannabis-related thinking problems, which could lead to better treatments.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Douglas Mental Health University Institute
RECRUITINGMontreal, Quebec, H4H 1R3, Canada
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