Clinical trials / Washington
Psychedelic and ketamine trials recruiting in Washington
4 trials registered on ClinicalTrials.gov were recruiting at one or more sites in Washington on 26 Oct 2026. By substance: Ketamine / esketamine 3, Psilocybin 1. By condition: depression 4.
From the ClinicalTrials.gov registry (US National Library of Medicine), read through its public API on 26 Oct 2026: studies marked as recruiting whose interventions name the substance. Titles, sponsors, phases, conditions and sites are the registry's own entries, written by the sponsors. We have not vetted any trial, and recruiting status changes; the registry record and the study team have the current eligibility rules.
Phase 3Ketamine / esketamineNCT07716098
A Study of Esketamine Nasal Spray Versus Placebo Spray in Adult Participants With Treatment-resistant Depression
- Conditions:
- Depressive Disorder, Treatment-Resistant
- Sponsor:
- Janssen Research & Development, LLC
- Who:
- ages 18 Years and over, 348 participants planned
- Also in:
- Japan, Taiwan
- Northwest Clinical Research Center, Bellevue, Washington
Phase 3Ketamine / esketamineNCT06713616
PCORI Comparative Effectiveness Study-Esketamine (Spravato) vs. Ketamine-Equivalence Study
- Conditions:
- Depression
- Sponsor:
- Yale University
- Who:
- ages 18 Years and over, 400 participants planned
- Seattle NTC, Seattle, Washington
ObservationalKetamine / esketamineNCT06725277
The OBSERVE Protocol
- Conditions:
- Major Depression Disorder
- Sponsor:
- Yale University
- Who:
- 450 participants planned
- Seattle NTC, Seattle, Washington
Phase 3PsilocybinNCT07226232
Psilocybin Intervention for Veterans Overcoming Treatment-Resistant Depression (PIVOT)
- Conditions:
- Major Depression
- Sponsor:
- VA Office of Research and Development
- Who:
- ages 18 Years to 75 Years, 240 participants planned
- VA Puget Sound Health Care System Seattle Division, Seattle, WA, Seattle, Washington