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Clinical Trial Summary

The goal of this neuroimaging clinical trial is to test whether psilocybin produces significant immediate changes in functional brain activity in networks associated with mood regulation and depression compared to placebo in patients with depression. The trial aims to determine if psilocybin: 1. Changes connectivity within brain networks associated with mood and depression 2. Changes blood flow in brain regions associated with mood and depression Participants will be attend two treatment sessions where they receive an oral medication and supportive psychotherapy. At each session, participants will undergo an MRI scan after drug administration but prior to psychotherapy. Participants will be randomly to assigned to one of two groups that will receive, 1) microcrystalline cellulose (25mg) at the first visit and psilocybin (25mg) at the second visit, or 2) psilocybin (25mg) at both visits, respectively. Differences between groups will be compared to understand what effects on brain activity are specific to psilocybin.


Clinical Trial Description

n/a


Study Design


Related Conditions & MeSH terms


NCT number NCT06072898
Study type Interventional
Source Sunnybrook Health Sciences Centre
Contact Sean Nestor, PhD MD FRCPC
Phone 416-480-4085
Email sean.nestor@sunnybrook.ca
Status Not yet recruiting
Phase Phase 2
Start date August 2024
Completion date November 2027

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