Countries and organisations
Explore psilocybin trials by country, sponsor and research facility. Compare registry status, study-start trends, conditions and mapped research sites.
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Explore registry geography and organisations
2 trials match this view; 3 mapped facilities. Latest indexed registry check Oct 9, 2026 01:24 UTC. Country membership uses reported locations, including locations without coordinates; Mapped-facility counts cover all sites of matching trials, including international sites, and require valid coordinates.
Enrollment sum: 55 across 2 records with a reported count. Planned and actual counts are mixed; this is not a count of unique treated participants.
Recorded study-start years
Current indexed registry status
Reported research conditions
Counts describe indexed registry records, not efficacy or total research activity. A trial can count under several conditions or countries. Unknown dates are excluded from the start-year chart; future years reflect planned starts. Stopped studies may reflect recruitment, funding or strategy and are not automatically treatment failures.
Countries with reported trial locations
Sponsors recorded in this index
Matching trial records
| Trial | Sponsor and phase | Status | Enrollment | Start / primary completion / completion | Research workflow |
|---|---|---|---|---|---|
| Computationally, Electrophysiologically, and Qualitatively Characterizing Serotonergic Psychedelics; Transdiagnostic Therapeutic and Pro-Psychotic EffectsOCD · Major Depressive Disorder (MDD) · Alcohol Use Disorder (AUD) · Healthy Volunteer · Migraine · PTSD · PTSD - Post Traumatic Stress Disorder · Addiction · Tobacco Use Disorder · Obsessive Compulsive Disorder (OCD) · Opioid Use Disorder | Yale University Phase not reported | Terminated Registry updated 2026-07-09 | 5 ACTUAL | 2024-12-12 2026-06-14 2026-06-14 | |
| Safety, Feasibility, and Tolerability of Psilocybin Treatment for Individuals With Functional Impairment Related to Mood, Anxiety, Trauma and/or Addiction Symptoms: An Open-label Proof-of-concept StudyTransdiagnostic · Depression - Major Depressive Disorder · Anxiety · PTSD Symptoms · PTSD · Substance Use · Substance Use Disorder (SUD) · OCD | Yale University PHASE1 | Recruiting Registry updated 2026-03-11 | 50 ESTIMATED | 2024-10-17 2027-12 2027-12 |
Reported research facilities
This list includes mapped sites of matching trials, including international sites; locations without usable coordinates are omitted. Facilities are registry-reported trial sites, not an independently verified clinic or research-centre directory. Current services and contact details must be checked at the source.