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
- RecruitingPhase 3
This Study Will Evaluate the Effectiveness of NTX-001, a Surgical Nerve Repair Product When Used in People With Upper Extremity Nerve Lacerations.
Neuraptive Therapeutics Inc.
- Location
- Seattle, WA + 22 other US sites
- Eligibility basics
- Ages 18–80
- RecruitingPhase 2
ANCHOR Study: A Study to Assess the Safety and Efficacy of ABBV-CLS-628 in Adult Participants With Autosomal Dominant Polycystic Kidney Disease (ADPKD)
Calico Life Sciences LLC
- Location
- Seattle, WA + 33 other US sites
- Eligibility basics
- Ages 18–55
- RecruitingPhase 2
A Study of Long-acting Antibodies Alone and in Combinations for Moderate to Severe Ulcerative Colitis
Spyre Therapeutics, Inc.
- Location
- Seattle, WA + 25 other US sites
- Eligibility basics
- Ages 18–75
- RecruitingPhase 2
A Study to Evaluate the Efficacy and Safety of SPT-300 (GlyphAllo) in Participants With Major Depressive Disorder, With or Without Anxious Distress (BUOY-1 Study)
Seaport Therapeutics
- Location
- Everett, WA + 26 other US sites
- Eligibility basics
- Ages 18–65
- RecruitingPhase 3
Pridopidine Phase 3 Study to Evaluate Efficacy and Safety in ALS
Prilenia
- Location
- Seattle, WA + 17 other US sites
- Eligibility basics
- Ages 18–80
- RecruitingPhase 3
A Clinical Study to Evaluate the Effects of NXT007 Compared to Emicizumab Prophylaxis in People With Hemophilia A
Hoffmann-La Roche
- Location
- Seattle, WA + 9 other US sites
- Eligibility basics
- Ages 12+
- RecruitingPhase 2
A Study to Evaluate the Effectiveness of Two Doses of AP-472 as Adjunctive Therapy to Levodopa in Parkinson's Disease (PD) Participants With Motor Fluctuations
Appello Pharmaceuticals, Inc.
- Location
- Kirkland, WA + 29 other US sites
- Eligibility basics
- Ages 30–80
- RecruitingPhase 2
A Study Comparing Siplizumab With Rabbit Anti-Thymocyte Globulin to Help the Body Accept a Kidney Transplant
Nefro Avillion Clinical Development, LLC
- Location
- Seattle, WA + 9 other US sites
- Eligibility basics
- Ages 18–70
- RecruitingPhase 2
A Phase 2 Master Protocol Assessing Inebilizumab and Blinatumomab in Autoimmune Diseases
Amgen
- Location
- Seattle, WA + 12 other US sites
- Eligibility basics
- Ages 18–75
- RecruitingPhase 2
Phase 2 EL219 Versus Liposomal Amphotericin B or Voriconazole for Early Antifungal Therapy
Elion Therapeutics, Inc.
- Location
- Seattle, WA + 9 other US sites
- Eligibility basics
- Ages 18+
- RecruitingPhase 3
A Study of Brenipatide in Adult Participants With Major Depressive Disorder
Eli Lilly and Company
- Location
- Bellevue, WA + 31 other US sites
- Eligibility basics
- Ages 18–75
- RecruitingPhase 1/Phase 2
A Study of Oral Nuvisertib (TP-3654) in Patients With Myelofibrosis
Sumitomo Pharma America, Inc.
- Location
- Seattle, WA + 29 other US sites
- Eligibility basics
- Ages 18+
- RecruitingPhase 3
Extension Study of Long-term Safety and Efficacy of Tulisokibart in Participants With Crohn's Disease or Ulcerative Colitis (MK-7240-011)
Merck Sharp & Dohme LLC
- Location
- Tacoma, WA + 11 other US sites
- Eligibility basics
- Any age listed
- Recruiting
ELEVATE-HFpEF Clinical Study
Medtronic Cardiac Rhythm and Heart Failure
- Location
- Tacoma, WA + 25 other US sites
- Eligibility basics
- Ages 40+
- RecruitingPhase 2
A Phase 2 Study and Open-Label Extension of NEU-411 in Companion Diagnostic-Positive Participants With Early Parkinson's Disease
Neuron23 Inc.
- Location
- Kirkland, WA + 43 other US sites
- Eligibility basics
- Ages 40–80
- RecruitingPhase 2
An Extension Study of Subjects Who Received an Avalyn Inhaled Antifibrotic Agent (SAIL)
Avalyn Pharma Inc.
- Location
- Seattle, WA + 30 other US sites
- Eligibility basics
- Ages 18+
- RecruitingPhase 1
A Study to Evaluate the Efficacy and Safety of Cannabidiol Oral Solution (CBD-OS [GWP42003-P, JZP926]) for the Treatment of Focal-Onset Seizures
Jazz Pharmaceuticals
- Location
- Seattle, WA + 20 other US sites
- Eligibility basics
- Ages 12–75
- RecruitingPhase 2/Phase 3
A Clinical Trial of EYE201/MK-8748 in People With Macular Degeneration (MK-8748-002)
EyeBiotech Ltd.
- Location
- Burlington, WA + 66 other US sites
- Eligibility basics
- Ages 50+
- RecruitingPhase 4
Safety and Tolerability of Open-Labeled Iloperidone in Adolescents
Vanda Pharmaceuticals
- Location
- Everett, WA + 9 other US sites
- Eligibility basics
- Ages 12–17
- RecruitingPhase 2
A Study to Evaluate the Efficacy, Safety and Tolerability of BMS-986368 in Participants With Multiple Sclerosis Spasticity
Celgene
- Location
- Kirkland, WA + 13 other US sites
- Eligibility basics
- Ages 18–70
- RecruitingPhase 3
A Study of Seltorexant as Monotherapy in Adults and Elderly Participants With Major Depressive Disorder
Janssen Research & Development, LLC
- Location
- Bellevue, WA + 33 other US sites
- Eligibility basics
- Ages 18–74
- RecruitingPhase 2/Phase 3
A Long-term Extension Study of JNJ-81201887 (AAVCAGsCD59) Parent Studies in Participants With Geographic Atrophy (GA) Secondary to Age-related Macular Degeneration (AMD)
Janssen Research & Development, LLC
- Location
- Spokane, WA + 44 other US sites
- Eligibility basics
- Ages 60+
- RecruitingPhase 2
A Study to Assess the Efficacy and Safety of ML-007C-MA for the Treatment of Alzheimer's Disease Psychosis
MapLight Therapeutics
- Location
- Bellevue, WA + 32 other US sites
- Eligibility basics
- Ages 55–90
- RecruitingPhase 3
Trial Investigating the Efficacy and Safety of Weekly Lonapegsomatropin Compared to Daily Somatropin in Children and Adolescents With Short Stature or Growth Failure Due to Growth Hormone Sufficient Disorders
Ascendis Pharma A/S
- Location
- Seattle, WA + 21 other US sites
- Eligibility basics
- Ages 2–17