Independent directory Public ClinicalTrials.gov records United States
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ClinicalTrials.gov public records Last synced Sep 1, 2026, 10:18 PM EDT

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Showing 1–24 of 184 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Conditions
Alcohol Use Disorder
Interventions
Psilocybin plus Visual Healing Set and Setting, Psilocybin plus Standard Set and Setting
Drug
Lead sponsor
Keith Heinzerling
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Santa Monica, California
Conditions
Obsessive-Compulsive Disorder
Interventions
Psilocybin 10 mg, Psilocybin 20 mg, Psilocybin 30 mg
Drug
Lead sponsor
Francisco A Moreno
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
1
States / cities
Tucson, Arizona
Conditions
Hematopoietic and Lymphatic System Neoplasm, Malignant Solid Neoplasm
Interventions
Biospecimen Collection, Functional Magnetic Resonance Imaging, Interview, Psilocybine, Psychotherapy, Questionnaire Administration
Procedure · Other · Drug + 1 more
Lead sponsor
Roswell Park Cancer Institute
Other
Eligibility
18 Years to 75 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Buffalo, New York
Completed Phase 1 Interventional Accepts healthy volunteers

UW Psilocybin Pharmacokinetics Study

NCT02163707
Conditions
Healthy
Interventions
Psilocybin
Drug
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
21 Years to 80 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
1
States / cities
Madison, Wisconsin
Completed Phase 2 Interventional Results available

Effects of Psilocybin in Major Depressive Disorder

NCT03181529
Conditions
Major Depressive Disorder
Interventions
Psilocybin
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
21 Years to 75 Years
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
1
States / cities
Baltimore, Maryland
Conditions
Migraine Headache
Interventions
Psilocybin, Placebo
Drug
Lead sponsor
Yale University
Other
Eligibility
21 Years to 65 Years
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
West Haven, Connecticut
Conditions
Opioid Use Disorder
Interventions
Psilocybin
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
21 Years to 70 Years
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2029
U.S. locations
1
States / cities
Baltimore, Maryland
Conditions
Amyotrophic Lateral Sclerosis
Interventions
Psilocybin
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years and older
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Baltimore, Maryland
Conditions
Treatment Resistant Depression
Interventions
Psilocybin
Drug
Lead sponsor
COMPASS Pathways
Industry
Eligibility
18 Years and older
Enrollment
258 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
40
States / cities
Tuscon, Arizona • Culver City, California • Garden Grove, California + 30 more
Conditions
Obsessive-Compulsive Disorder
Interventions
Psilocybin (0.25mg/kg), Niacin (250mg)
Drug
Lead sponsor
Yale University
Other
Eligibility
21 Years to 65 Years
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2024
U.S. locations
1
States / cities
New Haven, Connecticut
Completed Phase 2 Interventional Results available

Psilocybin-facilitated Treatment for Cocaine Use

NCT02037126
Conditions
Cocaine-Related Disorders
Interventions
Psilocybin, Diphenhydramine
Drug
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
25 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2024
U.S. locations
1
States / cities
Birmingham, Alabama
Conditions
Depression, Anxiety, Psilocybin-Assisted Psychotherapy, Advanced Cancer
Interventions
Psilocybin, Niacin
Drug · Other
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
25 Years and older
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Houston, Texas
Conditions
Major Depressive Diorder
Interventions
Psilocybin (drug), cognitive behavioral therapy, Minimal supportive therapy
Drug · Behavioral
Lead sponsor
University of California, Los Angeles
Other
Eligibility
21 Years to 60 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Los Angeles, California
Conditions
Cancer
Interventions
Psilocybin
Drug
Lead sponsor
University of Utah
Other
Eligibility
25 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Salt Lake City, Utah
Conditions
Treatment Resistant Depression, MDD, Major Depressive Disorder, Recurrent Depression, Depression
Interventions
Psilocybin, Accelerated intermittent theta burst (aiTBS) rTMS treatment, Low-dose psilocybin, Sham Accelerated intermittent theta burst (aiTBS) rTMS treatment
Drug · Device
Lead sponsor
University of Texas at Austin
Other
Eligibility
22 Years to 65 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2030
U.S. locations
1
States / cities
Austin, Texas
Conditions
Opioid-Related Disorders, Pain Management, Pain Management and Care, Advanced Cancer, Advanced Cancers
Interventions
Psilocybin
Drug
Lead sponsor
Yvan Beaussant, MD, MSci
Other
Eligibility
18 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Boston, Massachusetts
Conditions
Obsessive-compulsive Disorder (OCD)
Interventions
Psilocybin 100 mcg/kg, Psilocybin 300 mcg/kg, Lorazepam 1 mg
Drug
Lead sponsor
University of Arizona
Other
Eligibility
18 Years to 65 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
1
States / cities
Tucson, Arizona
Active, not recruiting Phase 3 Interventional

Psilocybin for Major Depressive Disorder (MDD)

NCT06308653
Conditions
Depressive Disorder, Major
Interventions
Psilocybin 25 mg, Inactive Placebo, Psilocybin 5 mg, Psychosocial Support
Drug · Behavioral
Lead sponsor
Usona Institute
Other
Eligibility
18 Years and older
Enrollment
238 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
29
States / cities
Birmingham, Alabama • Fayetteville, Arkansas • Little Rock, Arkansas + 25 more
Conditions
Phantom Limb Pain
Interventions
Psilocybin, Placebo Niacin
Drug
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years to 75 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
San Diego, California
Conditions
Major Depressive Disorder
Interventions
Psilocybin, Pimavanserin, Placebo
Drug
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
21 Years to 80 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
1
States / cities
New York, New York
Conditions
Opioid Use Disorder
Interventions
Psilocybin
Drug
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years to 65 Years
Enrollment
480 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2029
U.S. locations
5
States / cities
Albuquerque, New Mexico • Brooklyn, New York • New York, New York + 1 more
Active, not recruiting Phase 1Phase 2 Interventional

Psilocybin Therapy for Chronic Low Back Pain

NCT05351541
Conditions
Chronic Low-back Pain
Interventions
Psilocybin therapy with Zolpidem and Modafinil, Psilocybin therapy with Zolpidem, Psilocybin therapy with Modafinil, Psilocybin therapy with Placebo
Drug
Lead sponsor
Joshua Woolley, MD, PhD
Other
Eligibility
25 Years to 70 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
1
States / cities
San Francisco, California
Conditions
Anorexia Nervosa
Interventions
Psilocybin
Drug
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years to 40 Years
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
La Jolla, California
Completed Phase 1 Interventional Accepts healthy volunteers

Effects of Hallucinogens and Other Drugs on Mood and Performance

NCT02033707
Conditions
Healthy
Interventions
Hallucinogens and psychoactive substances
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
21 Years to 50 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2019
U.S. locations
1
States / cities
Baltimore, Maryland