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
5 trials match this view; 5 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: 72 across 5 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 |
|---|---|---|---|---|---|
| Open Label Psilocybin Brain Stimulation and Imaging Pilot StudyHealthy Volunteers | Johns Hopkins University PHASE1 | Completed Registry updated 2026-08-07 | 10 ACTUAL | 2025-04-18 2026-05-21 2026-05-21 | |
| Multivariate Neural and Physiological Correlates of Psychedelic Sub-states: a Within-subjects, Healthy Volunteer Study With Experience-samplingPsychedelic Experiences · Neuroimaging · Healthy Volunteers | Robin Carhart-Harris, PhD, MA PHASE1 | Active, not recruiting Registry updated 2026-06-05 | 12 ESTIMATED | 2023-07-31 2026-01-30 2027-01-30 | |
| Safety and Psychological Effects of Psilocybin and D-Serine Formulation in Healthy VolunteersHealthy Volunteers | Hadassah Medical Organization PHASE1 | Recruiting Registry updated 2026-02-05 | 10 ESTIMATED | 2025-12-11 2026-11 2027-02 | |
| A Phase 1 Study to Evaluate the Safety, Tolerability, and Pharmacokinetics of Multiple Doses of MLS101 (Psilocybin) in Healthy ParticipantsHealthy Volunteers | MycoMedica Life Sciences PBC PHASE1 | Completed Registry updated 2025-06-12 | 16 ACTUAL | 2024-11-08 2025-03-12 2025-03-12 | |
| A Phase 1 Dose Escalation Study to Evaluate the Safety, Tolerability, and Pharmacokinetics of MLS101 (psilocybin) in Healthy ParticipantsHealthy Volunteers | MycoMedica Life Sciences PBC PHASE1 | Completed Registry updated 2024-10-09 | 24 ACTUAL | 2024-03-27 2024-07-08 2024-07-08 |
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.