- 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
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Showing 1–24
of 33
matching trials from the live ClinicalTrials.gov search.
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- 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
- Psilocybin, Music Intervention
- Interventions
- Psilocybin (high dose), Playlist 1, Playlist 2, Playlist 3, Playlist 4, Playlist 5
- Drug · Behavioral
- Lead sponsor
- Johns Hopkins University
- Other
- Eligibility
- 21 Years to 75 Years
- Enrollment
- 100 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2025 – 2028
- U.S. locations
- 1
- States / cities
- Baltimore, Maryland
- 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
- 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
- Healthy
- Interventions
- psilocybin, Intensity of support for spiritual practice, Number of sessions
- Drug · Behavioral
- Lead sponsor
- Johns Hopkins University
- Other
- Eligibility
- 21 Years to 70 Years
- Enrollment
- 75 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2009 – 2014
- U.S. locations
- 1
- States / cities
- Baltimore, Maryland
- 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
- 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
- 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
- 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
- Depressive Symptoms, Depression, Alzheimer Disease, Mild Cognitive Impairment
- Interventions
- Psilocybin
- Drug
- Lead sponsor
- Johns Hopkins University
- Other
- Eligibility
- 18 Years to 85 Years
- Enrollment
- 20 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2021 – 2027
- U.S. locations
- 1
- States / cities
- Baltimore, Maryland
- Conditions
- Nicotine Dependence
- Interventions
- Psilocybin-assisted treatment, Nicotine Replacement Therapy (NRT)
- Drug
- Lead sponsor
- Johns Hopkins University
- Other
- Eligibility
- 21 Years to 65 Years
- Enrollment
- 82 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2008 – 2023
- U.S. locations
- 2
- States / cities
- Baltimore, Maryland
- 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
- 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
- Anorexia Nervosa
- Interventions
- Psilocybin
- Drug
- Lead sponsor
- Johns Hopkins University
- Other
- Eligibility
- 18 Years to 65 Years
- Enrollment
- 22 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2019 – 2023
- U.S. locations
- 1
- States / cities
- Baltimore, Maryland
- 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
- Stuttering
- Interventions
- Psilocybin, Speech therapy
- Drug · Behavioral
- Lead sponsor
- NYU Langone Health
- Other
- Eligibility
- 18 Years to 50 Years
- Enrollment
- 25 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2026 – 2027
- U.S. locations
- 1
- States / cities
- New York, New York