Countries and organisations
Explore psilocybin trials by country, sponsor and research facility. Compare registry status, study-start trends, conditions and mapped research sites.
Free access · No subscription for research tools or data exports
Explore registry geography and organisations
3 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: 62 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 |
|---|---|---|---|---|---|
| The Safety and Efficacy of Psilocybin in Patients With Treatment-resistant Depression and Chronic Suicidal IdeationTreatment Resistant Depression · Suicidal Ideation | Sheppard Pratt Health System PHASE2 | Completed Registry updated 2025-12-24 | 20 ACTUAL | 2022-03-28 2025-05-12 2025-05-12 | |
| An Open Label Study of the Safety and Efficacy of Psilocybin in Participants With Treatment-Resistant Depression (P-TRD)Treatment Resistant Depression | Sheppard Pratt Health System PHASE2 | Active, not recruiting Registry updated 2024-08-09 | 27 ACTUAL | 2021-03-01 2025-06-01 2026-05-01 | |
| The Safety and Efficacy of Psilocybin in Participants With Type 2 Bipolar Disorder (BP-II) Depression.Treatment Resistant Depression | Sheppard Pratt Health System PHASE2 | Unknown status Registry updated 2022-10-25 | 15 ACTUAL | 2021-03-01 2023-01-15 2023-04-15 |
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.