Open research · Psilocybin & psilocin

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

Trial, condition or NCT IDCountrySponsorPhaseStatusConditionReset

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: 106 across 4 records with a reported count. Planned and actual counts are mixed; this is not a count of unique treated participants.

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Recorded study-start years

202311

202611

202711

202911

Current indexed registry status

Completed11

Not yet recruiting11

Suspended11

Recruiting11

Reported research conditions

Major Depressive Disorder11

Depression - Major Depressive Disorder11

Psilocybin11

Cognitive Behavioral Therapy11

Cocaine Use Disorder11

Major Depressive Diorder11

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

4 matching registry records. Dates are registry milestones, not promised results announcements.
Trial	Sponsor and phase	Status	Enrollment	Start / primary completion / completion
Psilocybin-assisted Cognitive Behavioral Therapy for Depression NCT05227612 Major Depressive Disorder	University of California, Los Angeles PHASE1	Completed Registry updated 2026-05-19	16 ACTUAL	2023-06-27 2025-09-12 2025-09-12
Group Psilocybin-assisted Cognitive Behavioral Therapy for Major Depressive Disorder NCT07566104 Depression - Major Depressive Disorder · Psilocybin · Cognitive Behavioral Therapy	University of California, Los Angeles PHASE2	Not yet recruiting Registry updated 2026-05-04	30 ESTIMATED	2027-01 2028-12 2028-12
Safety Profile of 25 mg Psilocybin in Individuals With Cocaine Use Disorder NCT06102434 Cocaine Use Disorder	University of California, Los Angeles EARLY_PHASE1	Suspended Registry updated 2026-04-07	10 ESTIMATED	2029-02-01 2029-05 2029-06
Psilocybin-Assisted Cognitive Behavioral Therapy for Depression NCT07281352 Major Depressive Diorder	University of California, Los Angeles PHASE1, PHASE2	Recruiting Registry updated 2026-02-12	50 ESTIMATED	2026-01-05 2027-11-30 2027-11-30

Reported research facilities

UCLA Semel InstituteLos Angeles, California, United States

University of California, Los AngelesLos Angeles, California, 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.