Healthy volunteers · Washington
Studies for healthy volunteers in Washington
121 studies have at least one recruiting site in Washington. These studies say in their official record that they accept healthy volunteers. Many are Phase 1 studies that test how a new medicine is absorbed and tolerated; others recruit healthy people as a comparison group alongside patients.
121 recruiting studiesSource: ClinicalTrials.gov, refreshed October 26, 2026How we list studies
Studies
- RecruitingHealthy volunteers
ASSESS ALL ALS Study
St. Joseph's Hospital and Medical Center, Phoenix
- Location
- Seattle, WA + 35 other US sites
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
PREVENT ALL ALS Study
St. Joseph's Hospital and Medical Center, Phoenix
- Location
- Seattle, WA + 30 other US sites
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
A Digital Smoking Cessation Intervention for Helping American Indians and Alaska Natives Quit Smoking, IndigeQuit Trial
Fred Hutchinson Cancer Center
- Location
- Seattle, WA
- Eligibility basics
- Ages 18+
- 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
The Tick App: Changing Behaviors With Educational Messaging
University of Wisconsin, Madison
- Location
- Pullman, WA + 3 other US sites
- Eligibility basics
- Ages 18+
- 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
- Seattle, WA + 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
- Seattle, WA + 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
- Seattle, WA + 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
- Seattle, WA + 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
- Seattle, WA + 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
- Seattle, WA + 39 other US sites
- Eligibility basics
- Ages 18–90
- RecruitingHealthy volunteers
Multicenter HomeVENT: Home Values and Experiences Navigation Track
Johns Hopkins University
- Location
- Seattle, WA + 3 other US sites
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersPhase 2
Pharmaceutically-Enhanced Reinforcement for Reduced Alcohol and Smoking
Washington State University
- Location
- Spokane, WA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersPhase 2
Mirtazapine for the Treatment of Methamphetamine Use in Opioid Use Disorder Patients Receiving Medication Assisted Treatment
Washington State University
- Location
- Spokane, WA
- 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
- Seattle, WA + 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+
Who these studies look for
“Healthy” is decided at screening, not by you. Sites usually check vital signs, blood and urine tests, an ECG, your medications and sometimes your BMI or smoking status. A study can still turn you away for reasons that have nothing to do with being unwell, such as timing or a full roster.
Matching a page like this one never means you qualify. Each research team decides eligibility at screening.
Questions
Do healthy volunteer studies pay?
Many do, because volunteers give up time and follow strict schedules, but amounts are set by each study and are usually only confirmed by the research site. When a record states an amount we show the exact wording; otherwise we say compensation is not disclosed.
What happens at a screening visit?
Expect consent paperwork first, then a health questionnaire, vital signs, blood and urine samples and often an ECG. You can ask questions and withdraw at any time, before or after you sign.