- Conditions
- Parkinson Disease, Depression
- Interventions
- Psilocybin, Pimavanserin
- Drug
- Lead sponsor
- Joshua Woolley, MD, PhD
- Other
- Eligibility
- 40 Years to 80 Years
- Enrollment
- 60 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2024 – 2028
- U.S. locations
- 1
- States / cities
- San Francisco, California
Search Results
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Search by query text, NCT ID, condition, intervention, sponsor, city, state, recruitment status, phase, study type, healthy volunteer eligibility, sex, or age. Results are retrieved from ClinicalTrials.gov and synchronized into the directory. Search pages remain noindex by default.
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Showing 1–24
of 31
matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
- Conditions
- Opioid Use Disorder
- Interventions
- Psilocybin
- Drug
- Lead sponsor
- Johns Hopkins University
- Other
- Eligibility
- 21 Years to 70 Years
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2027 – 2028
- U.S. locations
- 1
- States / cities
- Baltimore, Maryland
- Conditions
- Cluster Headache
- Interventions
- 0.143 mg/kg Psilocybin or 10 mg Psilocybin, 0.0143 mg/kg Psilocybin or 1 mg Psilocybin, Placebo
- Drug
- Lead sponsor
- Yale University
- Other
- Eligibility
- 21 Years to 65 Years
- Enrollment
- 25 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2016 – 2022
- U.S. locations
- 1
- States / cities
- West Haven, Connecticut
- Conditions
- Demoralization
- Interventions
- Psilocybin, Placebo
- Drug
- Lead sponsor
- University of Alabama at Birmingham
- Other
- Eligibility
- 25 Years to 65 Years
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2023 – 2026
- U.S. locations
- 1
- States / cities
- Birmingham, Alabama
- Conditions
- Depressive Symptoms, Anxiety, Cancer
- Interventions
- psilocybin
- Drug
- Lead sponsor
- Johns Hopkins University
- Other
- Eligibility
- 21 Years to 80 Years
- Enrollment
- 56 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2007 – 2016
- U.S. locations
- 1
- States / cities
- Baltimore, Maryland
- Conditions
- Alcohol Use Disorder
- Interventions
- Psilocybin
- Drug
- Lead sponsor
- Brigham and Women's Hospital
- Other
- Eligibility
- 18 Years to 65 Years
- Enrollment
- 36 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2026 – 2030
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
- 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
- Major Depressive Disorder, Anhedonia, Treatment Resistant Depression
- Interventions
- Psilocybin 25mg, Placebo (active placebo)
- Drug
- Lead sponsor
- University of Colorado, Denver
- Other
- Eligibility
- 21 Years to 75 Years
- Enrollment
- 20 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2024 – 2026
- U.S. locations
- 1
- States / cities
- Aurora, Colorado
- 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
- Methamphetamine Use Disorder, Human Immunodeficiency Virus (HIV)
- Interventions
- Psilocybin 5 mg, Psilocybin 25 mg, Motivational Support
- Drug · Behavioral
- Lead sponsor
- Nicky Mehtani, MD, MPH
- Other
- Eligibility
- 25 Years to 64 Years
- Enrollment
- 30 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2026 – 2029
- U.S. locations
- 1
- States / cities
- San Francisco, California
- 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
- Conditions
- PTSD
- Interventions
- Psilocybin 15mg, Psilocybin 25mg
- Drug
- Lead sponsor
- Baylor College of Medicine
- Other
- Eligibility
- 21 Years to 64 Years
- Enrollment
- 15 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2025 – 2026
- U.S. locations
- 1
- States / cities
- Houston, Texas
- Conditions
- Obsessive - Compulsive Disorder
- Interventions
- Low Dose Psilocybin, High Dose Psilocybin
- Drug
- Lead sponsor
- Francisco A Moreno
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 20 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2026 – 2028
- U.S. locations
- 1
- States / cities
- Tucson, Arizona
- Conditions
- Major Depressive Disorder
- Interventions
- Low Dose Psilocybin, Placebo, Medium Dose Psilocybin
- Drug
- Lead sponsor
- Yale University
- Other
- Eligibility
- 18 Years to 65 Years
- Enrollment
- 18 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2018 – 2026
- U.S. locations
- 1
- States / cities
- West Haven, Connecticut
- Conditions
- Opioid Use Disorder
- Interventions
- Psilocybin (high dose), psilocybin (low dose)
- Drug
- Lead sponsor
- University of Pennsylvania
- Other
- Eligibility
- 18 Years to 60 Years
- Enrollment
- 24 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2025 – 2027
- U.S. locations
- 1
- States / cities
- Philadelphia, Pennsylvania
- Conditions
- Migraine Headache
- Interventions
- High Dose Psilocybin, Low Dose Psilocybin, Placebo
- Drug
- Lead sponsor
- Yale University
- Other
- Eligibility
- 21 Years to 65 Years
- Enrollment
- 14 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2017 – 2021
- U.S. locations
- 1
- States / cities
- West Haven, Connecticut
- Conditions
- Demoralization
- Interventions
- Psilocybin, Ketamine
- Drug
- Lead sponsor
- Charles S. Grob, M.D.
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 100 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2025 – 2027
- U.S. locations
- 5
- States / cities
- Greenbrae, California • Los Angeles, California • San Francisco, California + 2 more
- 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
- Conditions
- Chronic Low Back Pain (CLBP), Physical Therapy, Psilocybin
- Interventions
- Psilocybin 10 mg, Psilocybin 25 mg, Niacin 100 mg
- Drug
- Lead sponsor
- Yale University
- Other
- Eligibility
- 18 Years to 65 Years
- Enrollment
- 45 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2026 – 2029
- U.S. locations
- 1
- States / cities
- New Haven, Connecticut
- Conditions
- Depression, Parkinson's Disease (PD)
- Interventions
- Psilocybin (drug)
- Drug
- Lead sponsor
- Yale University
- Other
- Eligibility
- 40 Years to 80 Years
- Enrollment
- 40 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2026 – 2030
- U.S. locations
- 1
- States / cities
- New Haven, Connecticut
- 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
- Anhedonia in Healthy Volunteers, Older Adults (50-90 Years)
- Interventions
- Psilocybin (drug), Dextromethorphan (DXM)
- Drug
- Lead sponsor
- Jennifer Mitchell
- Other
- Eligibility
- 50 Years to 85 Years
- Enrollment
- 80 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2026 – 2030
- U.S. locations
- 1
- States / cities
- San Francisco, California
- Conditions
- Spinal Cord Injury, Depression - Major Depressive Disorder, Veteran
- Interventions
- Psilocybin (Usona Institute)
- Drug
- Lead sponsor
- James J. Peters Veterans Affairs Medical Center
- Federal
- Eligibility
- 22 Years and older
- Enrollment
- 30 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2026 – 2028
- U.S. locations
- 1
- States / cities
- The Bronx, New York
- Conditions
- Treatment Resistant Depression, Substance Use Disorders
- Interventions
- Psilocybin
- Drug
- Lead sponsor
- Indiana University
- Other
- Eligibility
- 18 Years to 70 Years
- Enrollment
- 50 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2026 – 2031
- U.S. locations
- 2
- States / cities
- Indianapolis, Indiana