Psilocybin for Depression

(PACT Trial)

Not yet recruiting at 3 trial locations
JW
Overseen ByJosh Woolley, BS PhD MD
Age: 18+
Sex: Any
Trial Phase: Phase 2
Sponsor: VA Office of Research and Development
No Placebo GroupAll trial participants will receive the active study treatment (no placebo)
Prior Safety DataThis treatment has passed at least one previous human trial

What You Need to Know Before You Apply

What is the purpose of this trial?

More efficacious treatments for Major Depressive Disorder (MDD) in Veterans are urgently needed. Psilocybin is a promising novel treatment that is likely to be the first FDA-approved psychedelic, but its safety and efficacy remain unclear. To address this gap, the investigators propose a randomized controlled trial of a single dose of psilocybin paired with a brief course of a VA-endorsed evidence-based psychotherapy (Acceptance and Commitment Therapy) in Veterans with MDD. Our trial addresses key limitations of previous studies including the challenge of management of expectancy effects, a focus on Veterans with input from Veterans, and a study population that reflects the demographics and medical and psychiatric complexity of the VHA patient population. Our study also explores psilocybin's antidepressant mechanisms focusing on changes in psychological flexibility and synaptic plasticity. In sum, this study will provide critical and timely data to determine if psilocybin treatment is a safe and efficacious treatment for MDD in Veterans.

Who Is on the Research Team?

JW

Josh Woolley, BS PhD MD

Principal Investigator

San Francisco VA Medical Center, San Francisco, CA

Are You a Good Fit for This Trial?

This trial is for veterans diagnosed with major depressive disorder who are seeking new treatment options. Participants should be able to safely take psilocybin and engage in psychotherapy. Those with certain medical or psychiatric conditions that could make participation unsafe may not be eligible.

Inclusion Criteria

I agree not to take any non-approved over-the-counter or herbal supplements.
I agree to avoid sedative medications before and after the study drug session.
Hamilton Depression Rating Scale (HAMD-6) of 8 or higher, assessed at screening visit
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Exclusion Criteria

High dose psychedelic use in past 3 years or ≥10 lifetime uses determined at screening visit
I am currently taking certain psychiatric medications and cannot or will not stop them.
Pregnancy indicated by positive urine pregnancy test during screening or prior to drug administration, lactation, or intention to become pregnant within 3 months of trial entry
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What Are the Treatments Tested in This Trial?

Interventions

  • Psilocybin

Trial Overview

The study tests a single dose of psilocybin combined with brief Acceptance and Commitment Therapy, compared to other medications like modafinil, pimavanserin, or zolpidem. Participants are randomly assigned to different groups.

How Is the Trial Designed?

8

Treatment groups

Experimental Treatment

Group I: Psilocybin, zolpidem, pimavanserin armExperimental Treatment3 Interventions
Group II: Psilocybin, zolpidem, armExperimental Treatment2 Interventions
Group III: Psilocybin, pimavanserin armExperimental Treatment2 Interventions
Group IV: Psilocybin, modafanil, zolpidem, pimavanserin armExperimental Treatment4 Interventions
Group V: Psilocybin, modafanil, zolpidem armExperimental Treatment3 Interventions
Group VI: Psilocybin, modafanil, pimavanserin armExperimental Treatment3 Interventions
Group VII: Psilocybin, modafanil armExperimental Treatment2 Interventions
Group VIII: Psilocybin armExperimental Treatment1 Intervention

Find a Clinic Near You

Who Is Running the Clinical Trial?

VA Office of Research and Development

Lead Sponsor

Trials
1,691
Recruited
3,759,000+