Feasibility, Clinical Effects, and Safety of Psilocybin-assisted Psychotherapy for Treatment-resistant OCD (PAP-OCD)

This open-label clinical trial (n=10) evaluates the feasibility, clinical effects, and safety of psilocybin-assisted psychotherapy (25mg, 2x) for treatment-resistant obsessive-compulsive disorder (OCD).

Participants, aged 18 to 65, diagnosed with treatment-resistant OCD, will receive two doses of 25mg of psilocybin, two weeks apart, alongside supportive therapy.

The study aims to recruit and retain participants with TROCD and assess the safety of psilocybin-assisted psychotherapy, measured by adverse events and the Columbia Suicide Severity Rating Scale. Additionally, the trial will measure changes in OCD symptoms using the Yale-Brown Obsessive Compulsive Scale (YBOCS) and evaluate secondary outcomes such as treatment response, depression severity, and quality of life.

The study is conducted by the Centre for Addiction and Mental Health (CAMH) and will run from April 2024 to September 2024.

Trial Details



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