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Flu clinical trials in Seattle, WA
4 studies for Flu are looking for participants at sites in and around Seattle (within about 30 miles). Open a study to see who can join and how to contact the study team.
Recruiting for a study here? Feature it at the top of this page — $99 for 30 days →
High vs.Standard Dose Influenza Vaccine in Pediatric Solid Organ Transplant (SOT) Recipients
RecruitingPhase 2
- Seattle Children's, Seattle
A Study on the Efficacy of a Vaccine Against Influenza in Adults ≥65 Years of Age
RecruitingPhase 3Healthy volunteers welcome
- GSK Investigational Site, Seattle
A Study on the Safety and Immune Response of Investigational mRNA Seasonal Flu/COVID-19 Combination Vaccine in Adults
RecruitingPhase 1
- GSK Investigational Site, Seattle
The INFLUENTIAL Trial- Evaluation of National Inpatient Influenza Vaccination Program
RecruitingHealthy volunteers welcome
- Seattle Children's Hospital, Seattle
About Flu
The flu can cause serious illness in people over 65, babies, and people with certain chronic illnesses. The best way to prevent the flu is to get a vaccine.
Flu trials in other cities
- Atlanta, GA10 studies
- Washington, DC8 studies
- St. Louis, MO7 studies
- Houston, TX7 studies
- Chicago, IL6 studies
- Charlottesville, VA6 studies
- Hialeah, FL6 studies
- Baltimore, MD6 studies
- Tucson, AZ5 studies
- Overland Park, KS5 studies
- San Diego, CA5 studies
- Miami, FL5 studies
Other studies in Seattle
- Non-Small Cell Lung Cancer55 studies
- Cancer (all types)48 studies
- Prostate Cancer45 studies
- Acute Myeloid Leukemia40 studies
- Metastatic Cancer39 studies
- Breast Cancer37 studies
- Colorectal Cancer35 studies
- Lung Cancer34 studies
- Ovarian Cancer29 studies
- Pancreatic Cancer22 studies
- Multiple Myeloma22 studies
- Acute Lymphoblastic Leukemia22 studies
From ClinicalTrials.gov, data retrieved Nov 15, 2026. Each study sets its own eligibility; the study team decides who can join.