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Showing 1–15 of 15 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Psychedelic Experiences Clear all
Terminated Phase 1 Interventional Accepts healthy volunteers Results available

Visual Surround Suppression and Perceptual Expectation Under Psilocybin

NCT04424225
View directory record Official record
Conditions
Perception Disturbance, Visual Suppression, Psychedelic Experiences
Interventions
Psilocybin, Niacin
Drug
Lead sponsor
University of Minnesota
Other
Eligibility
25 Years to 65 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Jun 26, 2025 · Synced Jul 23, 2026, 2:17 PM EDT
Recruiting Early Phase 1 Interventional Accepts healthy volunteers

Psilocybin Administration With 5-HT1a Blockade

NCT07565493
View directory record Official record
Conditions
Psychedelic Effects in Healthy Volunteers
Interventions
Pindolol, Placebo, Psilocybin
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
21 Years to 60 Years
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2028
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jun 24, 2026 · Synced Jul 23, 2026, 2:17 PM EDT
Recruiting Phase 1 Interventional Accepts healthy volunteers

Safety for Home Administration of Microdose Psilocybin Use

NCT06450210
View directory record Official record
Conditions
Psychedelic Experiences
Interventions
psilocybin trihydrate, Placebo
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
21 Years to 60 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2027
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Feb 22, 2026 · Synced Jul 23, 2026, 2:17 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Consciousness, Psilocybin, and Well-Being

NCT05592379
View directory record Official record
Conditions
Healthy, Psychedelic Experiences, Sleep
Interventions
Psilocybin, Clonidine, Saline
Drug · Other
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years to 45 Years
Enrollment
6 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated May 15, 2025 · Synced Jul 23, 2026, 2:17 PM EDT
Not yet recruiting Phase 1 Interventional Accepts healthy volunteers

Consciousness and Psilocybin Effects on Well-Being: The CoPEWell Study

NCT07360301
View directory record Official record
Conditions
Well-Being, Psychological, Psychedelic Experiences
Interventions
Psilocybin, Saline Placebo, Clonidine
Drug · Other
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years to 45 Years
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2028
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Jul 1, 2026 · Synced Jul 23, 2026, 2:17 PM EDT
Active, not recruiting Phase 2 Interventional

Pilot Trial of Visual Healing® in Psilocybin-assisted Therapy for Alcohol Use Disorder

NCT04410913
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Jan 16, 2023 · Synced Jul 23, 2026, 2:17 PM EDT
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

QAIAx (AIhealth4U) - AI Public Health Central: Microcity-A (re Quantum AI Agency Aka AI City Hall Project, UPSTO App Nos. 64/074,526, 64/063,557, 63/903,181, 63/729,428

NCT07661823
View directory record Official record
Conditions
Asperger's Disorder, Asperger Disorder, Autism Disorder, Autism, ADHD - Attention Deficit Disorder With Hyperactivity, ADHD, ASD, Alcohol Abuse/Dependence, Alcohol Addiction, Alcohol and Other Drug Use Disorders, Alcohol and Other Substance Use Prevention, Gambling Addiction, Gambling Disorder, Sex Abuse, Sex Behavior, Sex Crimes, Sex Disorder, Sex Disorders, Gender Dysphoria, Adult, Eating Behavior Disorders, Narcotic-Related Disorders, Narcotic Addiction, Narcissism, Psychiatric Disorder, Psychedelic Effects in Healthy Volunteers, Psychedelic Experiences, Psychedelic Drug Dependence, Marijuana Use Disorder, Marijuana Abuse and Dependence, Smoking (Tobacco) Addiction, Smoking Among Youth, Smoking Abstinence, Abstinence, Sex, Opiate Substitution Treatment, Opioid Abuse (Disorder), Opioid Abuse and Addiction, Cocaine Abuse, MDMA ('Ecstasy'), Addiction Disorders, Homeless and Low Incomes People, Refugees, Homelessness, Reliability and Validity, Anger Problems, Child Abuse, Sexual
Interventions
AI City Hall Project (AIhealth4u - Public Health Central), AI City Hall Project (QAIAx Microcity A - AI Public Health Central)
Behavioral
Lead sponsor
Veterans Recovery Network Inc.
Other
Eligibility
17 Years to 99 Years
Enrollment
1,000,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2028
U.S. locations
1
States / cities
Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Jul 7, 2026 · Synced Jul 23, 2026, 2:17 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Entheogen Resurgence

NCT05042765
View directory record Official record
Conditions
Psychedelic Experiences
Interventions
self-reported entheogen use
Other
Lead sponsor
Vireo Health
Other
Eligibility
18 Years and older
Enrollment
102 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Queens, New York
Source: ClinicalTrials.gov public record
Updated Jan 26, 2022 · Synced Jul 23, 2026, 2:17 PM EDT
Not yet recruiting Not applicable Interventional

Mystical Experiences Without Psychedelics and How Integration Improves Well-Being in Adults

NCT07584070
View directory record Official record
Conditions
Healthy Adult Participants
Interventions
Guided Invocation for Mystical Experience
Behavioral
Lead sponsor
Baylor University
Other
Eligibility
18 Years and older
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Waco, Texas
Source: ClinicalTrials.gov public record
Updated May 12, 2026 · Synced Jul 23, 2026, 2:17 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Psychedelic Virtual Reality

NCT06581263
View directory record Official record
Conditions
Psychedelic Experiences, Virtual Reality, Healthy Volunteer
Interventions
Meta Quest 3
Device
Lead sponsor
Yale University
Other
Eligibility
21 Years to 65 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Mar 24, 2026 · Synced Jul 23, 2026, 2:17 PM EDT
Recruiting Phase 2 Interventional

Psilocybin With Psychological Support (Psi-PS) for Military Veterans and First Responders With Co-occurring PTSD & Alcohol Use Disorder (AUD)

NCT06853912
View directory record Official record
Conditions
Alcohol Use Disorder (AUD), PTSD
Interventions
Psilocybin 25 mg, Maltodextrin (Placebo)
Drug
Lead sponsor
Nathan Brashares Sackett
Other
Eligibility
21 Years to 65 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Aug 27, 2025 · Synced Jul 23, 2026, 2:17 PM EDT
Recruiting Phase 1 Interventional Accepts healthy volunteers

The ENHANCE Study: taVNS and Psilocybin

NCT05866471
View directory record Official record
Conditions
Healthy, Psychedelic Experiences, Vagus Nerve Stimulation
Interventions
Psilocybin, Transcutaneous auricular Vagus Nerve Stimulation (taVNS), Psychosocial Support Alone, Sham taVNS
Drug · Device · Behavioral + 1 more
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years to 70 Years
Enrollment
108 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2028
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Apr 2, 2026 · Synced Jul 23, 2026, 2:17 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Pilot RECAP Study in Healthy Volunteers

NCT04842045
View directory record Official record
Conditions
Psychedelic Experiences, Amnesia
Interventions
Psilocybin and Midazolam
Drug
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
21 Years to 65 Years
Enrollment
8 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated May 18, 2023 · Synced Jul 23, 2026, 2:17 PM EDT
Not yet recruiting Phase 1Phase 2 Interventional

Psilocybin for Treatment of OCD-2

NCT06992999
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated May 11, 2026 · Synced Jul 23, 2026, 2:17 PM EDT
Active, not recruiting Phase 1 Interventional Accepts healthy volunteers

Neural and Physiological Correlates of Psychedelic Sub-states

NCT05698511
View directory record Official record
Conditions
Psychedelic Experiences, Neuroimaging, Healthy Volunteers
Interventions
Psilocybin
Drug
Lead sponsor
Robin Carhart-Harris, PhD, MA
Other
Eligibility
21 Years to 70 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2027
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jun 4, 2026 · Synced Jul 23, 2026, 2:17 PM EDT