Washington

Psychedelic trials in Washington

28 registered trials has a study site in Washington, and 5 are recruiting now.

Trials with a site here

Recruiting

Facilities

Open now

Recruiting in this state

Trial	Status	Phase	Substance	Sites
A Study of a Deuterated Psilocin Analog (CYB003) in Humans With Major Depressive DisorderNCT06793397 · Cybin IRL Limited	Recruiting	Phase 3	psilocybin	68
Psilocybin Intervention for Veterans Overcoming Treatment-Resistant DepressionNCT07226232 · VA Office of Research and Development	Recruiting	Phase 3	psilocybin	5
A Phase 3 Trial of DT120 for Major Depressive Disorder (Ascend)NCT07592689 · Definium Therapeutics US, Inc.	Recruiting	Phase 3	lsd	30
PCORI Comparative Effectiveness Study-Esketamine (Spravato) vs. Ketamine-Equivalence StudyNCT06713616 · Yale University	Recruiting	Phase 3	ketamine	8
The OBSERVE ProtocolNCT06725277 · Yale University	Recruiting	N/A	ketamine	8

Facilities

Where the research happens in Washington

Facility	City	Trials
Seattle Neuropsychiatric Treatment Center	Seattle	5
Core Clinical Research	Everett	3
Fred Hutch/University of Washington Cancer Consortium	Seattle	3
Seattle NTC	Seattle	2
University of Washington	Seattle	2
VA Puget Sound Health Care System Seattle Division, Seattle, WA	Seattle	1
VA Portland Healthcare System	Vancouver	1
Seattle Centre	Seattle	1
Cedar River Clinic	Renton	1
VA Portland Health Care System	Vancouver	1
University of Washington Center for Novel Therapeutics in Addiction Psychiatry	Seattle	1
Clinical Site 115	Bellevue	1
Madigan Army Medical Center	Joint Base Lewis McChord	1
Portland VA Health Care System	Vancouver	1
Clinical Site 135	Bellevue	1
Portland-Vancouver VA	Vancouver	1
AIMS Institute	Seattle	1
VA Puget Sound Health Care System	Seattle	1

Stay told

When a trial opens in Washington

All trials

Every trial with a Washington site

Trial	Status	Phase	Substance	Sites
A Study of a Deuterated Psilocin Analog (CYB003) in Humans With Major Depressive DisorderNCT06793397 · Cybin IRL Limited	Recruiting	Phase 3	psilocybin	68
Psilocybin Intervention for Veterans Overcoming Treatment-Resistant DepressionNCT07226232 · VA Office of Research and Development	Recruiting	Phase 3	psilocybin	5
A Phase 3 Trial of DT120 for Major Depressive Disorder (Ascend)NCT07592689 · Definium Therapeutics US, Inc.	Recruiting	Phase 3	lsd	30
PCORI Comparative Effectiveness Study-Esketamine (Spravato) vs. Ketamine-Equivalence StudyNCT06713616 · Yale University	Recruiting	Phase 3	ketamine	8
The OBSERVE ProtocolNCT06725277 · Yale University	Recruiting	N/A	ketamine	8
A Retrospective Effectiveness Trial of Ketamine-Assisted Psychotherapy in Adult Patients Coping With Mental HealthNCT05604794 · Field Trip Health	Completed	Phase 4	ketamine	11
Ketamine Versus Fentanyl for Surgical AbortionsNCT04871425 · University of Washington	Completed	Phase 4	ketamine	1
Efficacy, Safety, and Tolerability of COMP360 in Participants With TRDNCT05624268 · COMPASS Pathways	Completed	Phase 3	psilocybin	40
Efficacy, Safety, and Tolerability of Two Administrations of COMP360 in Participants With TRDNCT05711940 · COMPASS Pathways	Active, not recruiting	Phase 3	psilocybin	116
A Phase 3 Trial of MM120 for Generalized Anxiety Disorder (Panorama)NCT06809595 · Definium Therapeutics US, Inc.	Active, not recruiting	Phase 3	lsd	36
Psilocybin for Major Depressive Disorder (MDD)NCT06308653 · Usona Institute	Active, not recruiting	Phase 3	psilocybin	29
A Phase 3 Trial of DT120 for Generalized Anxiety Disorder (Voyage)NCT06741228 · Definium Therapeutics US, Inc.	Active, not recruiting	Phase 3	lsd	34
A Study to Evaluate the Efficacy, Safety, and Tolerability of Fixed Doses of Intranasal Esketamine Plus an Oral Antidepressant in Adult Participants With Treatment-resistant DepressionNCT02417064 · Janssen Research & Development, LLC	Completed	Phase 3	ketamine	90
A Study to Evaluate the Efficacy, Safety, and Tolerability of Intranasal Esketamine Plus an Oral Antidepressant in Elderly Participants With Treatment-resistant DepressionNCT02422186 · Janssen Research & Development, LLC	Completed	Phase 3	ketamine	69
A Long-term, Safety and Efficacy Study of Intranasal Esketamine in Treatment-resistant DepressionNCT02497287 · Janssen Research & Development, LLC	Completed	Phase 3	ketamine	109
Frontline Clinician Psilocybin StudyNCT05163496 · University of Washington	Completed	Phase 3	psilocybin	1
PsiloStudy: Psilocybin With Psychological Support (Psi-PS) for Military Veterans and First Responders With Co-occurring PTSD & Alcohol Use Disorder (AUD)NCT06853912 · Nathan Brashares Sackett	Active, not recruiting	Phase 2	psilocybin	1
Group Retreat Psilocybin Therapy for the Treatment of Anxiety and Depression in Patients With Metastatic Solid Tumors or Incurable Hematologic MalignanciesNCT07336238 · University of Washington	Active, not recruiting	Phase 2	psilocybin	1
A Study of CLE-100 (Oral Esketamine) as an Adjunctive Treatment to Standard Antidepressants for Major Depressive DisorderNCT06340958 · Clexio Biosciences Ltd.	Completed	Phase 2	ketamine	23
Department of Defense PTSD Adaptive Platform Trial - Intervention D - SLS-002NCT06816433 · Global Coalition for Adaptive Research	Suspended	Phase 2	ketamine	9
Psilocybin-Enhanced Psychotherapy for Methamphetamine Use DisorderNCT04982796 · Portland VA Research Foundation, Inc	Active, not recruiting	Phase 1 / Phase 2	psilocybin	1
Psilocybin-Assisted Therapy for the Treatment of Cancer-Related Anxiety in Patients With Metastatic CancerNCT05847686 · University of Washington	Completed	Phase 1 / Phase 2	psilocybin	1
A Study of CLE-100 (Oral Esketamine) in Addition to Standard Antidepressant Drug for Major Depressive Disorder - CLEO StudyNCT04103892 · Clexio Biosciences Ltd.	Completed	Phase 2	ketamine	46
Group MDMA-therapy for Veterans With PTSDNCT05961527 · Portland VA Research Foundation, Inc	Completed	Phase 1 / Phase 2	mdma	1
A Second Psilocybin Group Therapy for the Treatment of Cancer-Related Anxiety in Partial Responders With Metastatic CancerNCT06644170 · University of Washington	Completed	Phase 1	psilocybin	1
Open-Label Dose-Ranging Study of Oral SM-001 in Healthy AdultsNCT05894902 · Advanced Integrative Medical Science Institute	Unknown status	Phase 1	dmt	1
MDMA-Assisted Therapy for Pathological NarcissismNCT06565494 · University of Washington	Active, not recruiting	Early Phase 1	mdma	1
Ketamine Anesthesia for Improvement of Depression in ECTNCT02752724 · VA Puget Sound Health Care System	Completed	Not applicable	ketamine	1

Site locations from ClinicalTrials.gov API v2, data build 2026-08-25.

Elsewhere