Flu clinical trials in Washington
4 studies for Flu are looking for participants at sites in Washington.
Cities in Washington
High vs.Standard Dose Influenza Vaccine in Pediatric Solid Organ Transplant (SOT) Recipients
- Seattle Children's, Seattle
RecruitingPhase 2
Ages 3 to 17 · All sexes · Updated Sep 24, 2026 · NCT05947071A Study on the Efficacy of a Vaccine Against Influenza in Adults ≥65 Years of Age
- GSK Investigational Site, Renton
- GSK Investigational Site, Seattle
RecruitingPhase 3Healthy volunteers welcome
Ages 65 and older · All sexes · Updated Sep 18, 2026 · NCT07805707A Study on the Safety and Immune Response of Investigational mRNA Seasonal Flu/COVID-19 Combination Vaccine in Adults
- GSK Investigational Site, Seattle
RecruitingPhase 1
Ages 65 to 85 · All sexes · Updated Jun 30, 2026 · NCT07464314The INFLUENTIAL Trial- Evaluation of National Inpatient Influenza Vaccination Program
- Seattle Children's Hospital, Seattle
RecruitingHealthy volunteers welcome
6 Months – 99 Years · All sexes · Updated Apr 8, 2026 · NCT05832307From ClinicalTrials.gov, data retrieved Sep 30, 2026. Each study sets its own eligibility; the study team decides who can join.