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
3 trials match this view; 8 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: 80 across 3 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 Multicenter Phase 1 Safety and Tolerability Trial of Psilocybin in Healthy Older AdultsHealthy Volunteer · Older Adults (65-85 Years) | University of Colorado, Denver PHASE1 | Recruiting Registry updated 2026-09-16 | 40 ESTIMATED | 2026-04-01 2028-03 2028-03 | |
| Study of Psilocybin Assisted Psychotherapy to Address Fear of Recurrence in Patients Diagnosed With Early-stage Breast Cancer and Ovarian Cancer in RemissionBreast Cancer · Ovarian Cancer | University of Colorado, Denver PHASE1 | Recruiting Registry updated 2026-09-04 | 20 ESTIMATED | 2024-11-21 2026-12 2028-12 | |
| Effects of Psilocybin With Psychological Support on Anhedonia in Treatment-resistant Depression: a Randomized Controlled Pilot TrialMajor Depressive Disorder · Anhedonia · Treatment Resistant Depression | University of Colorado, Denver PHASE2 | Completed Registry updated 2026-05-22 | 20 ACTUAL | 2024-07-08 2026-05-08 2026-05-08 |
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.