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 |
|---|---|---|---|---|---|
| Safety and Feasibility of Psilocybin in Methamphetamine Use Disorder in a Community-Based SampleMethamphetamine Use Disorder · Substance-Related Disorders · Chemically-Induced Disorders · Substance Use Disorders · Stimulant-Use Disorder | University of Wisconsin, Madison PHASE1 | Terminated Registry updated 2026-05-12 | 5 ACTUAL | 2023-03-03 2024-03-07 2024-03-07 | |
| Psilocybin Assisted Psychotherapy for Treatment Resistant Depression and Co-occurring Substance Use DisorderTreatment Resistant Depression · Substance Use Disorders | Indiana University PHASE1, PHASE2 | Not yet recruiting Registry updated 2026-03-30 | 50 ESTIMATED | 2026-08-01 2031-01-01 2031-02-28 |
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.