Location · Seattle, WA
Clinical trials in Seattle, WA
401 recruiting studies have a site in the Seattle area, and 104 of them accept healthy volunteers. The area includes Bellevue, Kirkland, Redmond, Renton, Everett, Tacoma and nearby cities.
401 recruiting studiesSource: ClinicalTrials.gov, refreshed October 26, 2026How we list studies
Studies
- RecruitingHealthy volunteers
Development of Measures to Screen for Financial Hardship in Alzheimer's Disease and Dementia
Fred Hutchinson Cancer Center
- Location
- Seattle, WA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Mobile Health Application (PACT) to Improve Engagement in Advance Care Planning
Fred Hutchinson Cancer Center
- Location
- Seattle, WA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersPhase 2/Phase 3
Limited Versus Extended Trophic Feeding (LET-FEED) Trial
University of Washington
- Location
- Tacoma, WA
- Eligibility basics
- Ages 0 mo–2
- RecruitingHealthy volunteers
Nuestro Valor: Increasing Healthier Food Access for Rural Latino Communities Through a Food Retail Intervention
University of Washington
- Location
- Granger, WA + 1 other US site
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Genetic Determinants of Barrett's Esophagus and Esophageal Adenocarcinoma
Case Western Reserve University
- Location
- Baltimore, MD + 9 other US sites
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Collecting and Studying Blood and Tissue Samples From Patients With Locally Recurrent or Metastatic Prostate or Bladder/Urothelial Cancer
University of Washington
- Location
- Seattle, WA
- Eligibility basics
- Ages 18+ · Men only
- RecruitingHealthy volunteers
Natural History Study of and Genetic Modifiers in Spinocerebellar Ataxias
Lauren Moore
- Location
- Los Angeles, CA + 13 other US sites
- Eligibility basics
- Ages 6+
- RecruitingHealthy volunteers
PPMI Clinical - Establishing a Deeply Phenotyped PD Cohort
Michael J. Fox Foundation for Parkinson's Research
- Location
- Birmingham, AL + 29 other US sites
- Eligibility basics
- Ages 30+
- RecruitingHealthy volunteersPhase 2/Phase 3
A Study of Potential Disease Modifying Treatments in Individuals at Risk for or With a Type of Early Onset AD Caused by a Genetic Mutation
Washington University School of Medicine
- Location
- Birmingham, AL + 11 other US sites
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersPhase 2/Phase 3
A Study of a Potential Disease Modifying Treatment in Individuals at Risk for or With a Type of Early Onset AD Caused by a Genetic Mutation
Washington University School of Medicine
- Location
- Birmingham, AL + 11 other US sites
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Exploring the Decision to Drink (More) Alcohol Following Manipulations of Stress and Social Context
University of Washington
- Location
- Seattle, WA
- Eligibility basics
- Ages 21–50
- RecruitingHealthy volunteers
Pancreatic Cancer Early Detection Consortium
Arbor Research Collaborative for Health
- Location
- Scottsdale, AZ + 39 other US sites
- Eligibility basics
- Ages 18–90
- RecruitingHealthy volunteers
Multicenter HomeVENT: Home Values and Experiences Navigation Track
Johns Hopkins University
- Location
- Tampa, FL + 3 other US sites
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
An Adapted Evidence-Based Coaching Program for Fathers and Their Young Children in the Context of Home Visiting
University of Washington
- Location
- Seattle, WA
- Eligibility basics
- Ages 1+
- RecruitingHealthy volunteers
A Multilevel Intervention to Increase Colorectal Cancer Screening Tests in Patients With Abnormal Fecal Immunochemical Test Results, PROACT Trial
Fred Hutchinson Cancer Center
- Location
- Seattle, WA
- Eligibility basics
- Ages 45–75
- RecruitingHealthy volunteers
Childhood Cancer Survivor Study
St. Jude Children's Research Hospital
- Location
- Birmingham, AL + 26 other US sites
- Eligibility basics
- Any age listed
- RecruitingHealthy volunteers
Adapted Helping Ovarian Cancer Patients Cope Intervention to Address Burnout for Gynecologic Oncology Clinicians
Fred Hutchinson Cancer Center
- Location
- Seattle, WA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersPhase 2
Donor Stem Cell Transplant With Treosulfan, Fludarabine, and Total-Body Irradiation for the Treatment of Hematological Malignancies
Fred Hutchinson Cancer Center
- Location
- Seattle, WA
- Eligibility basics
- Ages 6 mo+
- RecruitingHealthy volunteers
Sleep and Performance
University of Washington
- Location
- Seattle, WA
- Eligibility basics
- Ages 18–30
- RecruitingHealthy volunteers
Late Onset Alzheimer's Disease
Columbia University
- Location
- Washington D.C., DC + 11 other US sites
- Eligibility basics
- Ages 55+
- RecruitingHealthy volunteers
Systems Analysis and Improvement to Optimize Opioid Use Disorder Care Quality and Continuity for Patients Exiting Jail
University of Washington
- Location
- Seattle, WA
- Eligibility basics
- Ages 18–110
- RecruitingHealthy volunteers
Prostate Cancer Screening for People at Genetic Risk for Aggressive Disease, PATROL Study
University of Washington
- Location
- Duarte, CA + 6 other US sites
- Eligibility basics
- Ages 40+ · Men only
- RecruitingHealthy volunteers
QT-Digital Mental Health Engagement Study
University of Washington
- Location
- Alexandria, VA + 1 other US site
- Eligibility basics
- Ages 14+
- RecruitingHealthy volunteers
An Automatically Adjusting Prosthetic Socket for People With Transtibial Amputation
University of Washington
- Location
- Seattle, WA
- Eligibility basics
- Ages 18+