Psilocybin-Research.comSearchable psilocybin and psilocin bibliometric database.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
4 trials match this view; 2 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: 61 across 4 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.
Matching trial records
| Trial | Sponsor and phase | Status | Enrollment | Start / primary completion / completion | Research workflow |
|---|---|---|---|---|---|
| A Pilot Mechanistic Study of Psilocybin-Assisted Therapy as a Treatment for DepressionDepression | Washington University School of Medicine PHASE2 | Not yet recruiting Registry updated 2026-05-20 | 50 ESTIMATED | 2026-06 2031-06 2031-12 | |
| Precision Functional Brain Mapping to Understand the Mechanisms of PsilocybinPsilocybin | Washington University School of Medicine EARLY_PHASE1 | Completed Registry updated 2025-10-31 | 11 ACTUAL | 2021-06-01 2023-03-19 2023-03-19 | |
| Psilocybin for the Treatment of Major Depressive DisorderMajor Depressive Disorder | Washington University School of Medicine PHASE2 | Withdrawn Registry updated 2024-07-25 | 0 ACTUAL | 2024-01-01 2025-01-01 2025-03-31 | |
| SV2A Marker of Synaptogenesis in a Clinical Trial of Psilocybin for DepressionMajor Depressive Disorder · Anhedonia | Washington University School of Medicine PHASE2 | Withdrawn Registry updated 2023-01-30 | 0 ACTUAL | 2023-07-01 2025-01-01 2025-07-01 |
Reported research facilities
Washington University School of MedicineSt Louis, Missouri, United States
Washington UniversitySt Louis, Missouri, United States
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.