Psilocybin-Research.comSearchable psilocybin and psilocin bibliometric database.
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Application overview

Source-labeled psilocybin and psilocin literature for search, monitoring, export, and citation workflows.

How the research index is built

Eight research sources feed Psilocybin-Research.com PubMed, OpenAlex, Crossref, Europe PMC, ClinicalTrials.gov, PsyArXiv, bioRxiv, and medRxiv provide records that are reconciled into the central research index. psilocybin-research.com PubMed OpenAlex Crossref Europe PMC ClinicalTrials.gov PsyArXiv bioRxiv medRxiv
Source records are fetched, reconciled, and labeled before appearing in the live index. The original sources remain authoritative.

Research workflow

Search, filter, export, analyze, and monitor publications with source labels, publication status, citation links, alerts, API access, and a rights-safe SQLite download. Read about the methods and limitations. Explore the dataset and reuse guide or research trends by year.

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

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20 trials match this view; 174 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: 1,718 across 20 records with a reported count. Planned and actual counts are mixed; this is not a count of unique treated participants.

Recorded study-start years

201911
202022
202155
202211
202322
202444
202544
202611

Current indexed registry status

Completed88
Recruiting55
Active, not recruiting44
Unknown status22
Not yet recruiting11

Reported research conditions

MDD11

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

Canada4141

Sponsors recorded in this index

Matching trial records

20 matching registry records. Dates are registry milestones, not promised results announcements.
TrialSponsor and phaseStatusEnrollmentStart / primary completion / completionResearch workflow
A Randomised, Placebo Controlled Trial of Psilocybin in Treatment Resistant Depression: A Feasibility Study

NCT04959253

Treatment Resistant Depression
King's College London

PHASE2

Completed

Registry updated 2026-08-28

60

ACTUAL

2021-06-21
2024-12-18
2024-12-18
A Phase III, Multicentre, Randomised, Double-blind, Controlled Study to Investigate the Efficacy, Safety, and Tolerability of Two Administrations of COMP360 in Participants With Treatment-resistant Depression

NCT05711940

Treatment Resistant Depression
COMPASS Pathways

PHASE3

Active, not recruiting

Registry updated 2026-08-10

572

ACTUAL

2023-02-14
2025-11-13
2026-12
A Phase III, Multicentre, Randomised, Double-blind, Placebo-controlled Study to Investigate the Efficacy, Safety, and Tolerability of COMP360 in Participants With Treatment-resistant Depression

NCT05624268

Treatment Resistant Depression
COMPASS Pathways

PHASE3

Completed

Registry updated 2026-08-10

258

ACTUAL

2023-01-24
2025-05-28
2026-04-15
Psilocybin for Treatment-Resistant Depression in Autism: a Pilot Trial With Pre-Post Brain and Cognitive Measurement to Understand Mechanism

NCT06731621

Treatment Resistant Depression · Autism Spectrum Disorder
Centre for Addiction and Mental Health

PHASE1

Active, not recruiting

Registry updated 2026-08-06

20

ESTIMATED

2024-11-01
2026-12
2026-12
Imaging the Effects of Serotonin 2A Receptor Modulation on Synaptic Density in Treatment-resistant Depression (SYNVEST)

NCT06512220

Treatment Resistant Depression
Centre for Addiction and Mental Health

PHASE2

Recruiting

Registry updated 2026-07-30

12

ESTIMATED

2025-04-21
2027-04
2027-09
Treatment With Psilocybin for Chronic Neuropathic Pain and Depression (TRANSCEND): An Open-Label Clinical Trial

NCT06518720

Treatment Resistant Depression · Chronic Pain
Centre for Addiction and Mental Health

PHASE2

Recruiting

Registry updated 2026-07-30

16

ESTIMATED

2025-04-01
2027-03
2027-12
Effects of Psilocybin With Psychological Support on Anhedonia in Treatment-resistant Depression: a Randomized Controlled Pilot Trial

NCT06230757

Major Depressive Disorder · Anhedonia · Treatment Resistant Depression
University of Colorado, Denver

PHASE2

Completed

Registry updated 2026-05-22

20

ACTUAL

2024-07-08
2026-05-08
2026-05-08
Induction Protocol for Psilocybin-Assisted Therapy in Treatment-Resistant Depression (TRD): A Pilot Study

NCT06303739

Refractory Depression · Treatment Resistant Depression
University of North Carolina, Chapel Hill

PHASE3

Active, not recruiting

Registry updated 2026-05-06

20

ACTUAL

2024-04-19
2026-04-09
2027-03-26
Psilocybin Assisted Psychotherapy for Treatment Resistant Depression and Co-occurring Substance Use Disorder

NCT07499583

Treatment Resistant Depression · Substance Use Disorders
Indiana University

PHASE1, PHASE2

Not yet recruiting

Registry updated 2026-03-30

50

ESTIMATED

2026-08-01
2031-01-01
2031-02-28
The Safety and Efficacy of Psilocybin in Patients With Treatment-resistant Depression and Chronic Suicidal Ideation

NCT05220410

Treatment Resistant Depression · Suicidal Ideation
Sheppard Pratt Health System

PHASE2

Completed

Registry updated 2025-12-24

20

ACTUAL

2022-03-28
2025-05-12
2025-05-12
Assessing the Safety, Tolerability, and Efficacy of Psilocybin Therapy Followed by Accelerated Intermittent Theta Burst (aiTBS) Repetitive Transcranial Magnetic Stimulation (rTMS) for Treatment-Resistant Major Depressive Disorder

NCT06132178

Treatment Resistant Depression · MDD · Major Depressive Disorder · Recurrent Depression · Depression
University of Texas at Austin

PHASE2

Recruiting

Registry updated 2025-11-26

100

ESTIMATED

2025-01-10
2029-12-31
2030-12-31
A Double-blind, Phase II Feasibility Study to Assess the Safety and Efficacy of Psilocybin Microdosing Combined With Psychotherapy in Treatment-resistant Depression

NCT07183748

Treatment Resistant Depression
Beersheva Mental Health Center

PHASE2

Recruiting

Registry updated 2025-11-19

20

ESTIMATED

2025-12-01
2027-06-01
2028-06-01
Psilocybin-assisted Psychotherapy in the Treatment of Patients Hospitalized for Treatment-resistant Depression: an Open-label Feasibility Study with an Experiential and Systemic Focus

NCT06378229

Treatment Resistant Depression
University Hospital, Ghent

PHASE2

Recruiting

Registry updated 2024-09-19

100

ESTIMATED

2024-05-21
2026-03
2026-12-31
An Open Label Study of the Safety and Efficacy of Psilocybin in Participants With Treatment-Resistant Depression (P-TRD)

NCT04433858

Treatment Resistant Depression
Sheppard Pratt Health System

PHASE2

Active, not recruiting

Registry updated 2024-08-09

27

ACTUAL

2021-03-01
2025-06-01
2026-05-01
The Safety and Efficacy Of Psilocybin as an Adjunctive Therapy in Participants With Treatment Resistant Depression

NCT04739865

Treatment Resistant Depression
COMPASS Pathways

PHASE2

Completed

Registry updated 2023-11-09

19

ACTUAL

2020-08-10
2021-10-14
2021-10-14
The Efficacy and Tolerability of Psilocybin in Participants With Treatment-Resistant Depression: a Phase 2, Randomized Feasibility Study

NCT05029466

Treatment Resistant Depression
Brain and Cognition Discovery Foundation

PHASE2

Completed

Registry updated 2023-07-27

30

ACTUAL

2021-11-19
2023-07-22
2023-07-22
The Safety and Efficacy of Psilocybin in Participants With Treatment Resistant Depression

NCT03775200

Treatment Resistant Depression
COMPASS Pathways

PHASE2

Completed

Registry updated 2023-04-24

233

ACTUAL

2019-03-01
2021-07-30
2021-09-27
The Safety and Efficacy of Psilocybin in Participants With Type 2 Bipolar Disorder (BP-II) Depression.

NCT04433845

Treatment Resistant Depression
Sheppard Pratt Health System

PHASE2

Unknown status

Registry updated 2022-10-25

15

ACTUAL

2021-03-01
2023-01-15
2023-04-15
Multicentre Study To Assess Safety And Efficacy Of Psilocybin In Patients With Treatment-Resistant Depression Following Completion Of COMP 001 And COMP 003 Trials (P-TRD LTFU)

NCT04519957

Treatment Resistant Depression
COMPASS Pathways

Phase not reported

Completed

Registry updated 2022-09-22

66

ACTUAL

2020-07-20
2022-08-11
2022-08-11
Psilocybin Versus Ketamine - Fast Acting Antidepressant Strategies in Treatment-resistant Depression

NCT05383313

Treatment Resistant Depression
National Institute of Mental Health, Czech Republic

PHASE2

Unknown status

Registry updated 2022-05-20

60

ESTIMATED

2021-05-01
2025-04-30
2025-04-30

Reported research facilities

Clinical Research Facility, King's College HospitalLondon, London, United Kingdom
Lighthouse Psychiatry ScottsdaleGilbert, Arizona, United States
Clinical Innovations, Inc.Bellflower, California, United States
M3 Wake ResearchEncino, California, United States
The Regents of the University of California - San DiegoLa Jolla, California, United States
Kadima Neuropsychiatry InstituteLa Jolla, California, United States
CalNeuro Research Group, IncLos Angeles, California, United States
Catalina Research Institute, LLCMontclair, California, United States
Piedmont Hospital Neuroscience CentreOakland, California, United States
ATP Clinical Research, Inc.Orange, California, United States
CITrialsRiverside, California, United States
Lumos Clinical Research CenterSan Jose, California, United States
Syrentis Clinical ResearchSanta Ana, California, United States
Stanford UniversityStanford, California, United States
ASCLEPES Research CentersThousand Oaks, California, United States
Pacific Clinical Research Management Group, LLCUpland, California, United States
Innovative Clinical Research, Inc.Lauderhill, Florida, United States
Central Miami Medical Institute, LLCMiami, Florida, United States
Behavioral Clinical Research, Inc.Miami Lakes, Florida, United States
Health Synergy Clinical ResearchOkeechobee, Florida, United States
Clinical Neurosciecne Solutions, Inc. dba CNS HealthcareOrlando, Florida, United States
APG Research, LLC- Advanced Psychiatric GroupOrlando, Florida, United States
University South FloridaTampa, Florida, United States
Stedman Clinical TrialsTampa, Florida, United States
Health Synergy Clinical Research, LLCWest Palm Beach, Florida, United States
Atlanta Center for Medical ResearchAtlanta, Georgia, United States
iResearch AtlantaDecatur, Georgia, United States
Rush University Medical CenterChicago, Illinois, United States
Uptown Research Institute, LLCChicago, Illinois, United States
Psychiatric Medicine AssociatesSkokie, Illinois, United States
Harvard Medical School - McLean HospitalBelmont, Massachusetts, United States
Adams Clinical - Boston (Copley Clinical)Boston, Massachusetts, United States
University of Massachusetts Medical SchoolNorth Worcester, Massachusetts, United States
Adams Clinical - BostonWatertown, Massachusetts, United States
Michigan Clinical Research Institute PCAnn Arbor, Michigan, United States
University Of Michigan Comprehensive Depression CenterAnn Arbor, Michigan, United States
Institute for Integrative TherapiesEden Prairie, Minnesota, United States
St. Charles Psychiatric Associates - Midwest Research GroupSaint Charles, Missouri, United States
Alivation Research, LLC.Lincoln, Nebraska, United States
Hassman Research InstituteBerlin, New Jersey, United States
Princeton Medical InstitutePrinceton, New Jersey, United States
Bio Behavioral HealthToms River, New Jersey, United States
Dent Neurosciences Research Center, Inc.Amherst, New York, United States
Fieve Clinical Research, IncNew York, New York, United States
Spectrum Neuroscience and Treatment InstituteNew York, New York, United States
Adams Clinical - New YorkNew York, New York, United States
New York State Psychiatric InstituteNew York, New York, United States
Richmond Behavioral AssociatesStaten Island, New York, United States
Adams Clinical - New YorkThe Bronx, New York, United States
University of Cincinnati, Department of Psychiatry & Behavirol NeuroscienceCincinnati, Ohio, United States
Cleveland Clinic - Lutheran HospitalCleveland, Ohio, United States
The Ohio State UniversityColumbus, Ohio, United States
Suburban Research AssociatesMedia, Pennsylvania, United States
The University of Texas at Austin - Dell Medical SchoolAustin, Texas, United States
Houston Clinical Trials, LLCBellaire, Texas, United States
Relaro Medical TrialsDallas, Texas, United States
Center for Depression Research and Clinical CareDallas, Texas, United States
North Texas Clinical TrialsFort Worth, Texas, United States
Brain Health Consultants and TMS CenterHouston, Texas, United States
HCA Healthcare Research Institute - Medical City Green Oaks HospitalPlano, Texas, United States
Cedar Clinical ResearchDraper, Utah, United States
The University of Utah - Huntsman Mental Health InstituteSalt Lake City, Utah, United States
Seattle Neuropsychiatric Treatment CenterSeattle, Washington, United States
Diex Recherche Sherbrooke Inc.Québec, B.C., Canada
Medical Arts Health Research Centre, KamloopsKamloops, British Columbia, Canada
Okanagan Clinical TrialsKelowna, British Columbia, Canada
Medical Arts Research Group - PentictonPenticton, British Columbia, Canada
Chatham-Kent Clnical Trials CentreChatham, Ontario, Canada
St. Michael's HospitalToronto, Ontario, Canada
Centre for Addiction and Mental Health (CAMH)Toronto, Ontario, Canada
Centre for Neurology StudiesVancouver, Canada
Medical Arts Research GroupVancouver, Canada
National Institute of Mental HealthKlecany, Czechia
Neuroterapie KH SroKutná Hora, Czechia
Psychiatric AmbulanceOstrava, Czechia
A-Shine s.r.o.Pilsen, Czechia
Psychedelicka klinika, s.r.o.Prague, Czechia
Institut Neuropsychiatricke PecePrague, Czechia
Aalborg Universitetshospital-Psykiatrien Region NordjyllandAalborg, Denmark
Ghu-Centre Hospitalier Sainte Anne, Centre de Recherche CliniqueParis, Paris, France
Centre Hospitalier Universitaire de Nimes (CHU) - Hopital Universitaire CaremeauNîmes, France
Universite Paris VI Pierre et Marie Curie - Hopital de La Salpetriere - Centre Emotion - USR 3246 (CNRS UMR 7593)Paris, France
Centre Hospitalier Sainte Anne - Clinique des Maladies Mentales et de l'Encephale (CMME)Paris, France
Charite-Universitaetsmedizin BerlinBerlin, Germany
Johann Wolfgang Goethe-Universitaet Frankfurt am Main - Klinik fuer Psychiatrie, Psychosomatik und PsychotherapieFrankfurt, Germany
ZiP Campus LuebeckLübeck, Germany
Tallaght University HospitalDublin, Ireland
La Nua Day Hospital Mental Health CentreGalway, Ireland
University Medical Center GroningenGroningen, Netherlands
Leids Universitair Medisch Centrum (LUMC) (Leiden University Medical Center) - Leiden Institute for Brain and Cognition (LIBC)Leiden, Netherlands
Universitair Medisch Centrum Utrecht (UMC Utrecht)Utrecht, Netherlands
Promente - Ośrodek Badań KlinicznychBydgoszcz, Poland
Uniwersyteckle Centrum Kliniczne, Klinika Psychiatrii DoroslychGdansk, Poland
Centrum Badan Klinicznych PI-House Sp. z o.o.Gdansk, Poland
Hospital Clinic de BarcelonaBarcelona, Spain
Parc Sanitari Sant Joan de Deu (Sant Joan de Deu Serveis de Salut Mental)Barcelona, Spain
Hospital Universitario Fundacion Jimenez DiazMadrid, Spain
FIDMAG Hermanas HospitalariasSant Boi de Llobregat, Spain
Hospital Universitario Río Hortega de ValladolidValladolid, Spain
Hospital Provincial de Zamora - Servicio de PsiquiatriaZamora, Spain
VuxenpsykiatrimottagningenLandskrona, Sweden
Lunds Universitet - Medicinska Fakulteten (Lund University Faculty of Medicine)Lund, Sweden
ClinSmart Sweden ABSolna, Sweden
HälsoklustretStockholm, Sweden
Cornwall Partnership NHS Foundation TrustBodmin, Cornwall, United Kingdom
Abraham Cowley Unit - Surrey and Borders Partnership NHS Foundation TrustChertsey, United Kingdom
St. Pancras Clinical ResearchChester, United Kingdom
Grounded Research Hub - Rotherham Doncaster & South Humber NHS Foundation TrustDoncaster, United Kingdom
Clinical Research Facility, Royal Devon and Exeter HospitalExeter, United Kingdom
Fulbourn Hospital - Cambridgeshire And Peterborough NHS Foundation TrustFulbourn, United Kingdom
St. Pancras Clinical ResearchLondon, United Kingdom
King's College London - Institute of Psychiatry, PsychologyLondon, United Kingdom
Clerkenwell HealthLondon, United Kingdom
Cumbria, Northumberland, Tyne and Wear NHS Foundation Trust - Wolfson Research CentreNewcastle, United Kingdom
University Of Nottingham/Nottinghamshire Healthcare Trust, Institute Of Mental HealthNottingham, United Kingdom
The Warneford Hospital- NIHR Clinical Research FacilityOxford, United Kingdom
Sheffield Health and Social Care NHS Foundation TrustSheffield, United Kingdom
ProScience Research GroupCulver City, California, United States
Collaborative Neuroscience Network, LLCGarden Grove, California, United States
University California San DiegoLa Jolla, California, United States
California Center for Psychedelic TherapyLos Angeles, California, United States
Clarity Clinical Research, LLCLos Angeles, California, United States
Artemis Institute for Clinical ResearchSan Diego, California, United States
Comprehensive Psychiatric CareNorwich, Connecticut, United States
APG Research, LLCOrlando, Florida, United States
DMI Health Care Group, IncTampa, Florida, United States
Meridien Research/Accel ResearchTampa, Florida, United States
Psych AtlantaAtlanta, Georgia, United States
Emory UniversityAtlanta, Georgia, United States
Sheppard Pratt Health SystemBaltimore, Maryland, United States
CBH Health, LLCGaithersburg, Maryland, United States
Pharmasite Research, IncPikesville, Maryland, United States
University of MinnesotaMinneapolis, Minnesota, United States
University of MissouriColumbia, Missouri, United States
Midwest Research GroupSaint Charles, Missouri, United States
Washington University School of MedicineSt Louis, Missouri, United States
The Medical Research Network, LLCNew York, New York, United States
Insight Clinical Trials, LLCBeachwood, Ohio, United States
Neuro-Behaviroral Clinical Research, Inc.North Canton, Ohio, United States
Rivus Wellness & Research InstituteOklahoma City, Oklahoma, United States
Global Medical Institutes, LLC, Scranton Medical InstituteMoosic, Pennsylvania, United States
UT Health Science Center at Houston (UTHSC-H)Houston, Texas, United States
Core Clinical ResearchEverett, Washington, United States
Centre for Addiction and Mental HealthToronto, Ontario, Canada
University of Colorado Anschutz Medical CampusAurora, Colorado, United States
UNC Chapel Hill Medical CenterChapel Hill, North Carolina, United States
Goodman Hall, Dept of Psychiatry, Indiana UniversityIndianapolis, Indiana, United States
The Stark Neuroscience Building (Goodman Hall)Indianapolis, Indiana, United States
Health Discovery Building (HDB), 1601 Trinity St., Bldg B., Z0600Austin, Texas, United States
Mental Health Center Beer ShevaBeersheba, Israel
Ghent University HospitalGhent, Oost-Vlaanderen, Belgium
VA Palo Alto Healthcare System/Stanford MedicinePalo Alto, California, United States
Sheaf House, Tallaght HospitalDublin, Ireland
Canadian Rapid Treatment Centre of Excellence (CRTCE)Mississauga, Ontario, Canada
Altman Clinical and Translational Research Institute, University of CaliforniaSan Diego, California, United States
Stanford Department of PsychiatryStanford, California, United States
Mood and Anxiety Disorders Program Emory University School of MedicineAtlanta, Georgia, United States
Ray Worthy Psychiatry LLCNew Orleans, Louisiana, United States
UT Center of Excellence on Mood Disorders, University of Texas Health Science CenterHouston, Texas, United States
Canadian Rapid Treatment Centre of ExcellenceMississauga, Ontario, Canada
National Institute of Mental Health Czech RepublicKlecany, Czechia
Enhed for Psykiatrisk Forskning, Psykiatrien i AalborgAalborg, Denmark
Charité - Universitätsmedizin Berlin, Department of Psychiatry and Psychotherapy, Campus Benjamin FranklinBerlin, Germany
Groningen University Medical CentreGroningen, Netherlands
Leiden University Medical CentreLeiden, Netherlands
Utrecht University Medical CentreUtrecht, Netherlands
Unidade de Neuropsiquiatria, Centro Clinico ChampalimaudLisbon, Portugal
Hospital de Dia NumanciaBarcelona, Spain
Institute Hospital del Mar of Medical Research (IMIM)Barcelona, Spain
Clinical Research and Imaging CentreBristol, Avon, United Kingdom
Wolfson Research Centre, Campus for Ageing and VitalityNewcastle upon Tyne, Tyne and Wear, United Kingdom
Kings College London, Institute of Psychiatry, Psychology and NeurologyLondon, United Kingdom
Greater Manchester Mental Health Foundation TrustManchester, United Kingdom
Sheppard PrattBaltimore, Maryland, 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.