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Healthy Volunteers Clinical Trials near Seattle, WA

116 studies for Healthy Volunteers are recruiting at 167 sites within 50 miles of Seattle, Washington, according to ClinicalTrials.gov data processed .

Distances are city-level approximations. See all Healthy Volunteers trials in the US or all trials near Seattle.

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Recruiting now

Healthy Volunteers studies enrolling near Seattle

Showing the 50 nearest of 116 studies.
  1. Collecting Blood Samples From Patients With and Without Cancer to Evaluate Tests for Early Cancer Detection

    NCT05334069

    • Observational
    • Ages 40 to 75 years
    • Sex: All
    • Accepts healthy volunteers

    Nearest sites: Swedish Medical Center-Ballard Campus (Seattle, WA); Swedish Medical Center-Cherry Hill (Seattle, WA)

    Distance to nearest recruiting site
    <1 mi (city-level)
    Recruiting sites
    9 sites within 50 mi
  2. Evaluating Whether an Educational Website Called Current Together After Cancer (CTAC) Improves Follow-up Care for Colorectal Cancer Survivors

    NCT07018869

    • Phase 3
    • Ages 18 years and older
    • Sex: All
    • Accepts healthy volunteers

    Nearest sites: Swedish Medical Center-Ballard Campus (Seattle, WA); Swedish Medical Center-Cherry Hill (Seattle, WA)

    Distance to nearest recruiting site
    <1 mi (city-level)
    Recruiting sites
    8 sites within 50 mi
  3. Testing an Enhanced Digital Delivery Model for Inherited Cancer Genetic Testing in Young Adults With Cancer

    NCT07091617

    • Interventional
    • Ages 18 years and older
    • Sex: All
    • Accepts healthy volunteers

    Nearest sites: Swedish Medical Center-Ballard Campus (Seattle, WA); Swedish Medical Center-Cherry Hill (Seattle, WA)

    Distance to nearest recruiting site
    <1 mi (city-level)
    Recruiting sites
    8 sites within 50 mi
  4. Family Communications After Genetic Testing

    NCT07143487

    • Interventional
    • Ages 18 years and older
    • Sex: All
    • Accepts healthy volunteers

    Nearest sites: Swedish Medical Center-Ballard Campus (Seattle, WA); Swedish Medical Center-Cherry Hill (Seattle, WA)

    Distance to nearest recruiting site
    <1 mi (city-level)
    Recruiting sites
    8 sites within 50 mi
  5. Surgical Thromboprophylaxis Practices in Oncology Patients Within the NCORP Network, STOP-VTE Study

    NCT07215624

    • Observational
    • Ages 18 years and older
    • Sex: All
    • Accepts healthy volunteers

    Nearest sites: Kaiser Permanente Washington (Seattle, WA); Swedish Medical Center-Ballard Campus (Seattle, WA)

    Distance to nearest recruiting site
    <1 mi (city-level)
    Recruiting sites
    6 sites within 50 mi
  6. A Phase 3 Study of Revaccination in Subsequent Pregnancies With Bivalent RSV Vaccine and Duration of Protection of a Single Dose

    NCT06866405

    • Phase 3
    • Ages 0 years and older
    • Sex: All
    • Accepts healthy volunteers

    Nearest sites: Seattle Children's Hospital (Seattle, WA); Seattle Children's Research Institute (Seattle, WA)

    Distance to nearest recruiting site
    <1 mi (city-level)
    Recruiting sites
    4 sites within 50 mi
  7. BEATRIX: A Study to Learn About a Group B Streptococcus Vaccine in Healthy Pregnant Women and Their Babies

    NCT07160244

    • Phase 3
    • Ages 1 day to 49 years
    • Sex: All
    • Accepts healthy volunteers

    Nearest sites: Seattle Childrens Hospital (Seattle, WA); Seattle Childrens Research Institute (Seattle, WA)

    Distance to nearest recruiting site
    <1 mi (city-level)
    Recruiting sites
    4 sites within 50 mi
  8. A Study to Learn About a Clostridioides Difficile Vaccine in People 65 Years of Age and Older

    NCT07282665

    • Phase 3
    • Ages 65 years and older
    • Sex: All
    • Accepts healthy volunteers

    Nearest sites: Kaiser Permanente Washington Health Research Institute (KPWHRI) (Seattle, WA); University of Washington - Harborview Medical Center (Seattle, WA)

    Distance to nearest recruiting site
    <1 mi (city-level)
    Recruiting sites
    3 sites within 50 mi
  9. Genetic Determinants of Barrett's Esophagus and Esophageal Adenocarcinoma

    NCT00288119

    • Observational
    • Ages 18 years and older
    • Sex: All
    • Accepts healthy volunteers

    Nearest sites: Fred Hutchinson Cancer Research Center, UWMC (Seattle, WA); VA Puget Sound Health Care System (Seattle, WA)

    Distance to nearest recruiting site
    <1 mi (city-level)
    Recruiting sites
    2 sites within 50 mi
  10. The Parkinson's Genetic Research Study

    NCT01558479

    • Observational
    • Ages 18 years and older
    • Sex: All
    • Accepts healthy volunteers

    Nearest sites: University of Washington (Seattle, WA); VA Puget Sound Health Care System (Seattle, WA)

    Distance to nearest recruiting site
    <1 mi (city-level)
    Recruiting sites
    2 sites within 50 mi
  11. Enroll -HD: A Prospective Registry Study in a Global Huntington's Disease Cohort

    NCT01574053

    • Observational
    • Ages 18 years and older
    • Sex: All
    • Accepts healthy volunteers

    Nearest sites: University of Washington Medical Center (Seattle, WA); Booth Gardner Parkinson's Care Center (Evergreen Health) (Kirkland, WA)

    Distance to nearest recruiting site
    <1 mi (city-level)
    Recruiting sites
    2 sites within 50 mi
  12. Clinical and Genetic Evaluation of Individuals With Undiagnosed Disorders Through the Undiagnosed Diseases Network

    NCT02450851

    • Observational
    • Ages 1 month to 100 years
    • Sex: All
    • Accepts healthy volunteers

    Nearest sites: Seattle Children's Hospital (Seattle, WA); University of Washington (Seattle, WA)

    Distance to nearest recruiting site
    <1 mi (city-level)
    Recruiting sites
    2 sites within 50 mi
  13. Ultrasound to Facilitate Stone Passage

    NCT04796792

    • Interventional
    • Ages 18 years and older
    • Sex: All
    • Accepts healthy volunteers

    Nearest sites: University of Washington (Seattle, WA); VA Puget Sound Health Care System (Seattle, WA)

    Distance to nearest recruiting site
    <1 mi (city-level)
    Recruiting sites
    2 sites within 50 mi
  14. A Randomized Comparison of Stage-Based Care Versus Risk Factor-Based Care for Prevention of Cardiovascular Events

    NCT06112418

    • Interventional
    • Ages 55 years and older
    • Sex: All
    • Accepts healthy volunteers

    Nearest sites: University of Washington (Seattle, WA); Providence Regional Medical Center Everett (Everett, WA)

    Distance to nearest recruiting site
    <1 mi (city-level)
    Recruiting sites
    2 sites within 50 mi
  15. Telephone-Based Coaching Sessions (TAC) to Improve Advance Care Planning Participation in Advanced Cancer Patients and Their Support Person

    NCT07141407

    • Interventional
    • Ages 18 years and older
    • Sex: All
    • Accepts healthy volunteers

    Nearest sites: Fred Hutch/University of Washington Cancer Consortium (Seattle, WA); Providence Regional Cancer Partnership (Everett, WA)

    Distance to nearest recruiting site
    <1 mi (city-level)
    Recruiting sites
    2 sites within 50 mi
  16. A Study on the Efficacy of a Vaccine Against Influenza in Adults ≥65 Years of Age

    NCT07805707

    • Phase 3
    • Ages 65 years and older
    • Sex: All
    • Accepts healthy volunteers

    Nearest sites: GSK Investigational Site (Seattle, WA); GSK Investigational Site (Renton, WA)

    Distance to nearest recruiting site
    <1 mi (city-level)
    Recruiting sites
    2 sites within 50 mi
  17. TrialNet Pathway to Prevention of T1D

    NCT00097292

    • Observational
    • Ages 2 to 45 years
    • Sex: All
    • Accepts healthy volunteers

    Nearest site: Benaroya Research Institute (Seattle, WA)

    Distance to nearest recruiting site
    <1 mi (city-level)
    Recruiting sites
    1 site within 50 mi
  18. Dominantly Inherited Alzheimer Network (DIAN)

    NCT00869817

    • Observational
    • Ages 18 years and older
    • Sex: All
    • Accepts healthy volunteers

    Nearest site: University of Washington (Seattle, WA)

    Distance to nearest recruiting site
    <1 mi (city-level)
    Recruiting sites
    1 site within 50 mi
  19. Collecting and Studying Blood and Tissue Samples From Patients With Locally Recurrent or Metastatic Prostate or Bladder/Urothelial Cancer

    NCT01050504

    • Observational
    • Ages 18 years and older
    • Sex: Male
    • Accepts healthy volunteers

    Nearest site: Fred Hutch/University of Washington Cancer Consortium (Seattle, WA)

    Distance to nearest recruiting site
    <1 mi (city-level)
    Recruiting sites
    1 site within 50 mi
  20. Natural History Study of and Genetic Modifiers in Spinocerebellar Ataxias

    NCT01060371

    • Observational
    • Ages 6 years and older
    • Sex: All
    • Accepts healthy volunteers

    Nearest site: University of Washington (Seattle, WA)

    Distance to nearest recruiting site
    <1 mi (city-level)
    Recruiting sites
    1 site within 50 mi
  21. Childhood Cancer Survivor Study

    NCT01120353

    • Observational
    • Ages Any age
    • Sex: All
    • Accepts healthy volunteers

    Nearest site: Seattle Children's Hospital (Seattle, WA)

    Distance to nearest recruiting site
    <1 mi (city-level)
    Recruiting sites
    1 site within 50 mi
  22. Genetics of Charcot Marie Tooth (CMT) - Modifiers of CMT1A, New Causes of CMT2

    NCT01193088

    • Observational
    • Ages Any age
    • Sex: All
    • Accepts healthy volunteers

    Nearest site: Seattle Children's Hospital (Seattle, WA)

    Distance to nearest recruiting site
    <1 mi (city-level)
    Recruiting sites
    1 site within 50 mi
  23. North American Mitochondrial Disease Consortium Patient Registry and Biorepository (NAMDC)

    NCT01694940

    • Observational
    • Ages Any age
    • Sex: All
    • Accepts healthy volunteers

    Nearest site: Seattle Children's Hospital and Regional Medical Center (Seattle, WA)

    Distance to nearest recruiting site
    <1 mi (city-level)
    Recruiting sites
    1 site within 50 mi
  24. Optimizing Pain Control in Transurethral Resection of the Prostate

    NCT04102566

    • Phase 4
    • Ages 18 years and older
    • Sex: Male
    • Accepts healthy volunteers

    Nearest site: Virginia Mason Medical Center (Seattle, WA)

    Distance to nearest recruiting site
    <1 mi (city-level)
    Recruiting sites
    1 site within 50 mi
  25. Donor Stem Cell Transplant With Treosulfan, Fludarabine, and Total-Body Irradiation for the Treatment of Hematological Malignancies

    NCT04195633

    • Phase 2
    • Ages 6 months and older
    • Sex: All
    • Accepts healthy volunteers

    Nearest site: Fred Hutch/University of Washington Cancer Consortium (Seattle, WA)

    Distance to nearest recruiting site
    <1 mi (city-level)
    Recruiting sites
    1 site within 50 mi
  26. ARTFL LEFFTDS Longitudinal Frontotemporal Lobar Degeneration (ALLFTD)

    NCT04363684

    • Observational
    • Ages 18 years and older
    • Sex: All
    • Accepts healthy volunteers

    Nearest site: University of Washington (Seattle, WA)

    Distance to nearest recruiting site
    <1 mi (city-level)
    Recruiting sites
    1 site within 50 mi
  27. Prostate Cancer Screening for People at Genetic Risk for Aggressive Disease, PATROL Study

    NCT04472338

    • Observational
    • Ages 40 years and older
    • Sex: Male
    • Accepts healthy volunteers

    Nearest site: Fred Hutch/University of Washington Cancer Consortium (Seattle, WA)

    Distance to nearest recruiting site
    <1 mi (city-level)
    Recruiting sites
    1 site within 50 mi
  28. PPMI Clinical - Establishing a Deeply Phenotyped PD Cohort

    NCT04477785

    • Observational
    • Ages 30 years and older
    • Sex: All
    • Accepts healthy volunteers

    Nearest site: Univ of Washington and VA Puget Sound Health Care System (Seattle, WA)

    Distance to nearest recruiting site
    <1 mi (city-level)
    Recruiting sites
    1 site within 50 mi
  29. Mobile Health Application (PACT) to Improve Engagement in Advance Care Planning

    NCT04515810

    • Interventional
    • Ages 18 years and older
    • Sex: All
    • Accepts healthy volunteers

    Nearest site: Fred Hutch/University of Washington Cancer Consortium (Seattle, WA)

    Distance to nearest recruiting site
    <1 mi (city-level)
    Recruiting sites
    1 site within 50 mi
  30. Pancreatic Cancer Early Detection Consortium

    NCT04970056

    • Observational
    • Ages 18 to 90 years
    • Sex: All
    • Accepts healthy volunteers

    Nearest site: University of Washington (Seattle, WA)

    Distance to nearest recruiting site
    <1 mi (city-level)
    Recruiting sites
    1 site within 50 mi
  31. Puberty, Diabetes, and the Kidneys, When Eustress Becomes Distress (PANTHER Study)

    NCT05008276

    • Observational
    • Ages 8 to 14 years
    • Sex: All
    • Accepts healthy volunteers

    Nearest site: Seattle Children's Hospital (Seattle, WA)

    Distance to nearest recruiting site
    <1 mi (city-level)
    Recruiting sites
    1 site within 50 mi
  32. Late Onset Alzheimer's Disease

    NCT05010603

    • Observational
    • Ages 55 years and older
    • Sex: All
    • Accepts healthy volunteers

    Nearest site: University of Washington (Seattle, WA)

    Distance to nearest recruiting site
    <1 mi (city-level)
    Recruiting sites
    1 site within 50 mi
  33. Advancing Suicide Intervention Strategies for Teens During High Risk Periods

    NCT05078970

    • Interventional
    • Ages 11 to 17 years
    • Sex: All
    • Accepts healthy volunteers

    Nearest site: Seattle Children's (Seattle, WA)

    Distance to nearest recruiting site
    <1 mi (city-level)
    Recruiting sites
    1 site within 50 mi
  34. An Automatically Adjusting Prosthetic Socket for People With Transtibial Amputation

    NCT05124652

    • Interventional
    • Ages 18 years and older
    • Sex: All
    • Accepts healthy volunteers

    Nearest site: William H. Foege Hall (Seattle, WA)

    Distance to nearest recruiting site
    <1 mi (city-level)
    Recruiting sites
    1 site within 50 mi
  35. Target ALS Biomarker Study; Longitudinal Biofluids, Clinical Measures, and At Home Measures

    NCT05137665

    • Observational
    • Ages 18 years and older
    • Sex: All
    • Accepts healthy volunteers

    Nearest site: University of Washington (Seattle, WA)

    Distance to nearest recruiting site
    <1 mi (city-level)
    Recruiting sites
    1 site within 50 mi
  36. Smart Eyewear to Automatically Detect Drug Delivery Events

    NCT05184660

    • Observational
    • Ages 18 years and older
    • Sex: All
    • Accepts healthy volunteers

    Nearest site: University of Washington (Seattle, WA)

    Distance to nearest recruiting site
    <1 mi (city-level)
    Recruiting sites
    1 site within 50 mi
  37. Specialty Compared to Oncology Delivered Palliative Care for Patients With Acute Myeloid Leukemia

    NCT05237258

    • Interventional
    • Ages 18 to 120 years
    • Sex: All
    • Accepts healthy volunteers

    Nearest site: Fred Hutchinson Cancer Center (Seattle, WA)

    Distance to nearest recruiting site
    <1 mi (city-level)
    Recruiting sites
    1 site within 50 mi
  38. Cognitive Aftereffects of Neurotoxicity in Children and Young Adults With Relapsed/Refractory Hematologic Malignancies Who Receive CAR T-cell Therapy

    NCT05237986

    • Observational
    • Ages 5 years and older
    • Sex: All
    • Accepts healthy volunteers

    Nearest site: Seattle Children s Hospital (Seattle, WA)

    Distance to nearest recruiting site
    <1 mi (city-level)
    Recruiting sites
    1 site within 50 mi
  39. SpeeDx Ciprofloxacin gyrA Assay for N. Gonorrhoeae Gonococcal Infection

    NCT05286931

    • Interventional
    • Ages 18 years and older
    • Sex: All
    • Accepts healthy volunteers

    Nearest site: Public Health -- Seattle & King County Sexual Health Clinic (Seattle, WA)

    Distance to nearest recruiting site
    <1 mi (city-level)
    Recruiting sites
    1 site within 50 mi
  40. 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

    NCT05552157

    • Phase 2/3
    • Ages 18 years and older
    • Sex: All
    • Accepts healthy volunteers

    Nearest site: University of Washington (Seattle, WA)

    Distance to nearest recruiting site
    <1 mi (city-level)
    Recruiting sites
    1 site within 50 mi
  41. Young Adult Education on Alcohol & Health

    NCT05620849

    • Interventional
    • Ages 18 to 24 years
    • Sex: Female
    • Accepts healthy volunteers

    Nearest site: University of Washington (Seattle, WA)

    Distance to nearest recruiting site
    <1 mi (city-level)
    Recruiting sites
    1 site within 50 mi
  42. Cerebral Autosomal Dominant Arteriopathy With Subcortical Infarcts and Leukoencephalopathy (CADASIL) Study

    NCT05677880

    • Observational
    • Ages 18 years and older
    • Sex: All
    • Accepts healthy volunteers

    Nearest site: University of Washington (Seattle, WA)

    Distance to nearest recruiting site
    <1 mi (city-level)
    Recruiting sites
    1 site within 50 mi
  43. Using Shared Decision Making to Improve Family Media Use Planning

    NCT05722535

    • Interventional
    • Ages 11 years and older
    • Sex: All
    • Accepts healthy volunteers

    Nearest site: Seattle Children's Research Institute (Seattle, WA)

    Distance to nearest recruiting site
    <1 mi (city-level)
    Recruiting sites
    1 site within 50 mi
  44. Study of VGA039 in Healthy Volunteers and Patients With Von Willebrand Disease (VIVID)

    NCT05776069

    • Phase 1/2
    • Ages 12 to 60 years
    • Sex: All
    • Accepts healthy volunteers

    Nearest site: Washington Center for Bleeding Disorders (Seattle, WA)

    Distance to nearest recruiting site
    <1 mi (city-level)
    Recruiting sites
    1 site within 50 mi
  45. Wakaya: Rising Up for Choctaw Youth Health

    NCT05818384

    • Interventional
    • Ages 12 to 19 years
    • Sex: All
    • Accepts healthy volunteers

    Nearest site: University of Washington, IWRI, School of Social Work (Seattle, WA)

    Distance to nearest recruiting site
    <1 mi (city-level)
    Recruiting sites
    1 site within 50 mi
  46. The INFLUENTIAL Trial- Evaluation of National Inpatient Influenza Vaccination Program

    NCT05832307

    • Interventional
    • Ages 6 months to 99 years
    • Sex: All
    • Accepts healthy volunteers

    Nearest site: Seattle Children's Hospital (Seattle, WA)

    Distance to nearest recruiting site
    <1 mi (city-level)
    Recruiting sites
    1 site within 50 mi
  47. Virtual Implicit Bias Reduction and Neutralization Training (VIBRANT)

    NCT05970991

    • Interventional
    • Ages 11 to 99 years
    • Sex: All
    • Accepts healthy volunteers

    Nearest site: University of Washington (Seattle, WA)

    Distance to nearest recruiting site
    <1 mi (city-level)
    Recruiting sites
    1 site within 50 mi
  48. BASIS-T Efficacy Trial

    NCT05989568

    • Interventional
    • Ages 18 years and older
    • Sex: All
    • Accepts healthy volunteers

    Nearest site: University of Washington (Seattle, WA)

    Distance to nearest recruiting site
    <1 mi (city-level)
    Recruiting sites
    1 site within 50 mi
  49. Effect of High-Intensity Exercise to Attenuate Cognitive Function Limitations and Train Exercise Habits in Older People Living With HIV

    NCT06013579

    • Interventional
    • Ages 50 to 80 years
    • Sex: All
    • Accepts healthy volunteers

    Nearest site: University of Washington (Seattle, WA)

    Distance to nearest recruiting site
    <1 mi (city-level)
    Recruiting sites
    1 site within 50 mi
  50. Drug Excretion in Breast Milk

    NCT06056583

    • Phase 4
    • Ages 14 days to 50 years
    • Sex: All
    • Accepts healthy volunteers

    Nearest site: University of Washington (Seattle, WA)

    Distance to nearest recruiting site
    <1 mi (city-level)
    Recruiting sites
    1 site within 50 mi

FAQ

Common questions

What is a clinical trial?
A clinical trial is a research study in people that tests a medical, surgical or behavioral intervention, such as an investigational drug or device. Observational studies are also listed: they collect information without assigning a treatment. Read how clinical trials work.
Is there compensation for joining a Healthy Volunteers clinical trial?
Compensation for time and travel may be available, but it varies by study and some studies offer none. The amount and schedule are reviewed by an ethics board and described in the consent form. See compensation in clinical trials.
How do I check if I'm eligible?
Each study lists age, sex and other inclusion and exclusion criteria on its ClinicalTrials.gov record. Only the study team can confirm eligibility, usually through a screening call or visit. Talk with your own doctor before joining any study.

Source: ClinicalTrials.gov, data processed . Recruiting US sites filtered by distance and site status; summaries shortened.