Psilocybin-Research.comSearchable psilocybin and psilocin bibliometric database.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; 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: 190 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.
Matching trial records
| Trial | Sponsor and phase | Status | Enrollment | Start / primary completion / completion | Research workflow |
|---|---|---|---|---|---|
| A Phase 2a Study of Group Retreat Psilocybin Therapy for Cancer-Related Anxiety and DepressionAnxiety · Depression · Hematopoietic and Lymphatic System Neoplasm · Metastatic Malignant Solid Neoplasm | University of Washington PHASE2 | Active, not recruiting Registry updated 2026-07-31 | 18 ESTIMATED | 2026-05-19 2026-12-01 2027-05-01 | |
| A Phase 2 Sequential Dose-Finding Study of Preparation for Group Retreat Psilocybin Therapy for Healthcare Clinicians With Loss of Meaning in Their Work and Symptoms of DepressionDepression · Anxiety | University of Washington PHASE2 | Not yet recruiting Registry updated 2026-05-04 | 72 ESTIMATED | 2026-06 2027-12 2028-07 | |
| A Phase 1/2 Study of a Group Model of Psilocybin-Assisted Therapy for Cancer-Related Anxiety in Patients With Metastatic CancerHematopoietic and Lymphatic System Neoplasm · Metastatic Malignant Solid Neoplasm | University of Washington PHASE1, PHASE2 | Completed Registry updated 2025-11-05 | 55 ACTUAL | 2023-06-27 2024-04-08 2024-10-17 | |
| A Phase 1 Study of a Second Psilocybin Group Retreat for Partial Responders With Anxiety Associated With Metastatic CancerHematopoietic and Lymphatic System Neoplasm · Metastatic Malignant Solid Neoplasm | University of Washington PHASE1 | Completed Registry updated 2025-10-14 | 15 ACTUAL | 2024-11-19 2025-09-30 2025-09-30 | |
| A Randomized, Placebo-controlled Trial of Psychedelic-assisted Psychotherapy With Single Dose Psilocybin for Frontline Clinicians Experiencing COVID-related Symptoms of Depression and BurnoutBurnout, Caregiver · Burnout, Professional · COVID-19 · Depression · Post Traumatic Stress Disorder · Moral Injury | University of Washington PHASE3 | Completed Registry updated 2025-03-18 | 30 ACTUAL | 2022-03-03 2023-12-30 2024-06-30 |
Reported research facilities
Fred Hutch/University of Washington Cancer ConsortiumSeattle, Washington, United States
University of WashingtonSeattle, Washington, 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.