Location · Washington
Clinical trials recruiting in Washington
461 recruiting studies have at least one site in Washington; 121 accept healthy volunteers. Studies that need a specific condition are included too, so check each listing.
Want the research companies that run paid Phase 1 studies for healthy volunteers? Paid clinical trial companies in Washington.
461 recruiting studiesSource: ClinicalTrials.gov, refreshed October 26, 2026How we list studies
Studies
- Recruiting
MMA Embolization With NeoCast for Subacute and Chronic Subdural Hematoma
Arsenal Medical, Inc.
- Location
- Seattle, WA
- Eligibility basics
- Ages 18–90
- RecruitingPhase 3
VE303 for Prevention of Recurrent Clostridioides Difficile Infection
Vedanta Biosciences, Inc.
- Location
- Seattle, WA + 55 other US sites
- Eligibility basics
- Ages 12+
- RecruitingPhase 2
A Study to Assess the Efficacy and Safety of ITI-1284 in the Treatment of Psychosis Associated With Alzheimer's Disease
Intra-Cellular Therapies, Inc.
- Location
- Bellevue, WA + 17 other US sites
- Eligibility basics
- Ages 55+
- RecruitingPhase 2
Phase 2, Efficacy and Safety Study of ACP-204 in Lewy Body Dementia Psychosis
ACADIA Pharmaceuticals Inc.
- Location
- Kirkland, WA + 27 other US sites
- Eligibility basics
- Ages 55–84
- RecruitingPhase 3
Phase 3, Open Label Extension Study of ACP-204 in Lewy Body Dementia Psychosis
ACADIA Pharmaceuticals Inc.
- Location
- Kirkland, WA + 17 other US sites
- Eligibility basics
- Ages 55–84
- RecruitingPhase 3
A Study of Dupilumab in Small Children With an Allergic Condition of the Esophagus (Food Pipe): Eosinophilic Esophagitis
Regeneron Pharmaceuticals
- Location
- Seattle, WA + 12 other US sites
- Eligibility basics
- Ages 6 mo–6
- RecruitingPhase 2
A Study to Evaluate the Efficacy, Safety, Pharmacodynamics (PD), and Pharmacokinetics (PK) of Selnoflast in Reducing Vascular Inflammation in Participants With Atherosclerosis at Risk for Major Adverse Cardiac Events
Genentech, Inc.
- Location
- Redmond, WA + 23 other US sites
- Eligibility basics
- Ages 18+
- RecruitingPhase 2/Phase 3
Nectero EAST System Clinical Study
Nectero Medical, Inc.
- Location
- Seattle, WA + 35 other US sites
- Eligibility basics
- Ages 21–85
- RecruitingPhase 2
A Study to Investigate the Efficacy, Safety, Tolerability and Pharmacokinetics of PKN605 in Participants With Atrial Fibrillation
Novartis Pharmaceuticals
- Location
- Seattle, WA + 5 other US sites
- Eligibility basics
- Ages 18+
- Recruiting
Ambulatory Long Length URodynamics Evaluation
Bright Uro
- Location
- Auburn, WA + 8 other US sites
- Eligibility basics
- Ages 22+
- RecruitingPhase 3
A Study to Investigate Cabotegravir Ultra Long-Acting (CAB ULA) Plus Rilpivirine Ultra Long-Acting (RPV ULA) in Adults and Adolescents With HIV Who Are Virologically Suppressed
ViiV Healthcare
- Location
- Seattle, WA + 36 other US sites
- Eligibility basics
- Ages 12+
- RecruitingPhase 3
A Research Study Investigating How Well the Medicine Zenagamtide Helps People With Excess Body Weight Lose Weight Compared to Semaglutide
Novo Nordisk A/S
- Location
- Renton, WA + 32 other US sites
- Eligibility basics
- Ages 18+
- RecruitingPhase 3
A Study to Investigate CV Outcomes With Elecoglipron Compared With Placebo in Adult Participants With HFpEF or HFmrEF
AstraZeneca
- Location
- Redmond, WA + 8 other US sites
- Eligibility basics
- Ages 18+
- RecruitingPhase 2
Perivenous Dexamethasone Therapy: Examining Reduction of Inflammation After Thrombus Removal to Yield Benefit in Acute Femoropopliteal DVT
Mercator MedSystems, Inc.
- Location
- Seattle, WA + 17 other US sites
- Eligibility basics
- Ages 18–89
- RecruitingPhase 3
Study of Lumateperone as Adjunctive Therapy in the Treatment of Patients With Major Depressive Disorder
Intra-Cellular Therapies, Inc.
- Location
- Bellevue, WA + 19 other US sites
- Eligibility basics
- Ages 18–65
- Recruiting
Study of GalaFLEX LITE™ Scaffold in Treatment of Capsular Contracture After Breast Implant Augmentation
C. R. Bard
- Location
- Seattle, WA + 32 other US sites
- Eligibility basics
- Ages 22–70 · Women only
- RecruitingPhase 3
Safety and Tolerability Trial of Lumateperone in Pediatric Patients With Schizophrenia, Bipolar Disorder or Autism Spectrum Disorder
Intra-Cellular Therapies, Inc.
- Location
- Bellevue, WA + 46 other US sites
- Eligibility basics
- Ages 5–17
- RecruitingPhase 2
A Study on the Safety of TAK-279 and Whether it Can Reduce Inflammation in the Bowel of Participants With Moderately to Severely Active Crohn's Disease
Takeda
- Location
- Seattle, WA + 23 other US sites
- Eligibility basics
- Ages 18–75
- RecruitingPhase 3
Multicenter Study of Lumateperone for the Treatment of Bipolar Depression in Pediatric Patients
Intra-Cellular Therapies, Inc.
- Location
- Bellevue, WA + 33 other US sites
- Eligibility basics
- Ages 10–17
- RecruitingPhase 2
Study of ITI-1284 as an Adjunctive Treatment in Patients With Generalized Anxiety Disorder
Intra-Cellular Therapies, Inc.
- Location
- Bellevue, WA + 24 other US sites
- Eligibility basics
- Any age listed
- RecruitingPhase 2
Study of Targeted Therapies for the Treatment of Adult Participants With Moderate to Severe Crohn's Disease
AbbVie
- Location
- Seattle, WA + 53 other US sites
- Eligibility basics
- Ages 18–75
- RecruitingPhase 3
Phase 3 Study of Adjunctive Treatment With Seltorexant in Adult and Elderly Participants With Major Depressive Disorder and Insomnia Symptoms
Janssen Research & Development, LLC
- Location
- Everett, WA + 41 other US sites
- Eligibility basics
- Ages 18–74
- RecruitingPhase 3
Multicenter Study of Lumateperone for the Treatment of Irritability Associated With Autism Spectrum Disorder in Pediatric Patients
Intra-Cellular Therapies, Inc.
- Location
- Bellevue, WA + 27 other US sites
- Eligibility basics
- Ages 5–17
- RecruitingPhase 2
Study of ITI-1284 as Monotherapy Treatment in Patients With Generalized Anxiety Disorder
Intra-Cellular Therapies, Inc.
- Location
- Bellevue, WA + 22 other US sites
- Eligibility basics
- Ages 18+