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; 6 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: 198 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 |
|---|---|---|---|---|---|
| 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 | |
| Neurobiological Effects of Psilocybin in Treatment Resistant Bipolar Depression: An Emotional-Processing fMRI Pilot StudyBipolar Depression | University Health Network, Toronto PHASE1 | Active, not recruiting Registry updated 2026-08-10 | 30 ESTIMATED | 2024-10-09 2026-09-01 2027-01-01 | |
| Psilocybin-Assisted Psychotherapy for Treatment-Resistant Depression: A Randomized Phase II Clinical Trial Comparing One Versus Two Psychedelic Doses of Psilocybin (PSI-1V2)Major Depressive Disorder · Depression · Treatment-Resistant Depression · Mood Disorders | University Health Network, Toronto PHASE2 | Active, not recruiting Registry updated 2026-07-09 | 92 ESTIMATED | 2024-02-05 2026-07-28 2026-12-28 | |
| Psilocybin-assisted Existential, Attachment and Relational (PEARL) Therapy for Caregivers of Patients With Advanced Cancer: A Phase II Open-Label TrialCaregiver Distress | University Health Network, Toronto PHASE2 | Recruiting Registry updated 2026-06-23 | 15 ESTIMATED | 2025-07-16 2027-12-02 2027-12-02 | |
| 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 |
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.