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
- RecruitingHealthy volunteers
Effect of High-Intensity Exercise to Attenuate Cognitive Function Limitations and Train Exercise Habits in Older People Living With HIV
University of Alabama at Birmingham
- Location
- Seattle, WA + 1 other US site
- Eligibility basics
- Ages 50–80
- RecruitingHealthy volunteersPhase 4
A Trial Comparing Screening Mammography With and Without Assistance From Artificial Intelligence for Breast Cancer Detection and Recall Rates in Adult Patients
Jonsson Comprehensive Cancer Center
- Location
- Seattle, WA + 5 other US sites
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Target ALS Biomarker Study; Longitudinal Biofluids, Clinical Measures, and At Home Measures
Target ALS Foundation, Inc.
- Location
- Seattle, WA + 9 other US sites
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Advancing Suicide Intervention Strategies for Teens During High Risk Periods
Seattle Children's Hospital
- Location
- Seattle, WA + 1 other US site
- Eligibility basics
- Ages 11–17
- RecruitingHealthy volunteers
Evaluating Response to Vitamin D3 and K2 Supplementation in Healthcare Personnel
Madigan Army Medical Center
- Location
- Tacoma, WA
- Eligibility basics
- Ages 18–69
- RecruitingHealthy volunteers
Caloric Balance Markers Study
Institute for Systems Biology
- Location
- Seattle, WA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
ADAPT Study: Assessing Diet, Appetite and Physiology Throughout Weight Loss Study)
University of Washington
- Location
- Seattle, WA
- Eligibility basics
- Ages 18–60
- RecruitingHealthy volunteers
Auditory Prediction and Error Evaluation in the Speech of Individuals Who Stutter
Arizona State University
- Location
- Seattle, WA + 1 other US site
- Eligibility basics
- Ages 3+
- RecruitingHealthy volunteers
School-based Paraeducator Education for Engagement at Recess
University of Washington
- Location
- Seattle, WA
- Eligibility basics
- Ages 5+
- RecruitingHealthy volunteers
Specialty Compared to Oncology Delivered Palliative Care for Patients With Acute Myeloid Leukemia
Massachusetts General Hospital
- Location
- Seattle, WA + 19 other US sites
- Eligibility basics
- Ages 18–120
- RecruitingHealthy volunteers
Stress and Resilience
University of Washington
- Location
- Seattle, WA + 1 other US site
- Eligibility basics
- Ages 18–30
- RecruitingHealthy volunteers
TrialNet Pathway to Prevention of T1D
University of South Florida
- Location
- Seattle, WA + 16 other US sites
- Eligibility basics
- Ages 2–45
- RecruitingHealthy volunteers
Building Research for Intervention Development in Gliosis and Eating Habits
University of Washington
- Location
- Seattle, WA
- Eligibility basics
- Ages 9+
- RecruitingHealthy volunteers
Impact Trial of Helping Educational Leaders Mobilize Evidence
University of Washington
- Location
- Seattle, WA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Puberty, Diabetes, and the Kidneys, When Eustress Becomes Distress (PANTHER Study)
Petter Bjornstad
- Location
- Seattle, WA + 1 other US site
- Eligibility basics
- Ages 8–14
- RecruitingHealthy volunteers
Virtual Implicit Bias Reduction and Neutralization Training (VIBRANT)
University of Washington
- Location
- Seattle, WA
- Eligibility basics
- Ages 11–99
- RecruitingHealthy volunteers
Alcohol-focused Support of Survivors in Sororities Training (ASSIST) - Pilot
University of Washington
- Location
- Seattle, WA
- Eligibility basics
- Ages 18+ · Women only
- RecruitingHealthy volunteers
Young Adult Education on Alcohol & Health
University of Washington
- Location
- Seattle, WA
- Eligibility basics
- Ages 18–24 · Women only
- RecruitingHealthy volunteers
Trout Consumption in Young Children and Families and Brain Health
University of Idaho
- Location
- Pullman, WA + 1 other US site
- Eligibility basics
- Ages 3+
- RecruitingHealthy volunteers
Optimizing Infection Prophylaxis Prior to Shoulder Surgery
University of Washington
- Location
- Seattle, WA
- Eligibility basics
- Ages 18–89 · Men only
- RecruitingHealthy volunteers
BASIS-T Efficacy Trial
University of Washington
- Location
- Seattle, WA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersPhase 4
Drug Excretion in Breast Milk
University of Washington
- Location
- Seattle, WA
- Eligibility basics
- Ages 0 mo–50
- RecruitingHealthy volunteers
The Parkinson's Genetic Research Study
University of Washington
- Location
- Seattle, WA + 4 other US sites
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Smart Eyewear to Automatically Detect Drug Delivery Events
University of Washington
- Location
- Seattle, WA
- Eligibility basics
- Ages 18+