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
6 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: 384 across 6 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 |
|---|---|---|---|---|---|
| Psilocybin-assisted Existential, Attachment and RelationaL (PEARL) Therapy for Patients With Advanced Cancer: A Randomized Controlled TrialAdvanced Cancer · Stage IV Solid Tumor Cancer · Stage IV Sarcoma of Bone · Stage IV Lymphoma · Stage IV Melanoma · Endocrine Cancer | University Health Network, Toronto PHASE2 | Not yet recruiting Registry updated 2026-09-15 | 46 ESTIMATED | 2026-09-14 2028-12-30 2029-07-30 | |
| TRIP - TReatment to Improve Depression and/or Anxiety Using Psilocybin-Assisted Psychotherapy in Patients With Advanced Cancer on Maintenance TherapyDepression, Anxiety · Psilocybin-Assisted Psychotherapy · Advanced Cancer | M.D. Anderson Cancer Center PHASE2 | Recruiting Registry updated 2026-09-11 | 48 ESTIMATED | 2024-04-16 2026-12-31 2026-12-31 | |
| High vs. Low-Dose Group-Based Psilocybin-Assisted Therapy (PAT) With or Without Mindfulness-Based (MB) Preparation and Integration for Demoralization in Adults With Advanced Cancer (PAT-MIND): A Pilot Feasibility 2x2 Factorial Multisite TrialAdvanced Cancer · Demoralization · Existential Distress · Psychological Distress | University of Calgary PHASE2 | Not yet recruiting Registry updated 2026-09-02 | 60 ESTIMATED | 2026-10-30 2027-12-20 2027-12-31 | |
| Feasibility Phase 2 Study of Psilocybin-Assisted Therapy for Opioid-Refractory Pain in Patients With Advanced CancerOpioid-Related Disorders · Pain Management · Pain Management and Care · Advanced Cancer · Advanced Cancers | Yvan Beaussant, MD, MSci PHASE2 | Recruiting Registry updated 2026-08-05 | 15 ESTIMATED | 2024-09-23 2026-10-01 2026-12-31 | |
| Psilocybin-assisted Existential, Attachment and RelationaL (PEARL) Therapy for Patients With Advanced Cancer: A Phase II Open-Label TrialAdvanced Cancer · Stage IV Solid Tumor Cancer · Stage IV Sarcoma of Bone · Stage IV Lymphoma · Stage IV Melanoma · Endocrine Cancer | University Health Network, Toronto PHASE2 | Active, not recruiting Registry updated 2026-06-22 | 15 ESTIMATED | 2024-06-06 2026-12-15 2026-12-15 | |
| A Phase 2b, Randomized, Double-blind, Placebo-controlled, Multi-center Study of the Effects of Psilocybin-assisted Psychotherapy on Psychiatric and Existential Distress in Advanced CancerAdvanced Cancer | NYU Langone Health PHASE2, PHASE3 | Recruiting Registry updated 2025-12-04 | 200 ESTIMATED | 2023-05-24 2027-01-01 2027-01-01 |
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.