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Flu clinical trials in St. Louis, MO
4 studies for Flu are looking for participants at sites in and around St. Louis (within about 30 miles). Open a study to see who can join and how to contact the study team.
A Study on the Efficacy of a Vaccine Against Influenza in Adults ≥65 Years of Age
RecruitingPhase 3Healthy volunteers welcome
- GSK Investigational Site, St Louis
- GSK Investigational Site, St Louis
Efficacy and Safety of Tozorakimab in Patients Hospitalised for Viral Lung Infection Requiring Supplemental Oxygen
RecruitingPhase 3
- Research Site, St Louis
Dissecting Human Immune Responses to Infection With Influenza or SARS-CoV-2
RecruitingObservational studyHealthy volunteers welcome
- Washington University in Saint Louis Department of Emergency Medicine, Emergency Care Research Core, St Louis
Characterizing the Human Airway Immune Response to FluMist Vaccination
RecruitingPhase 4Healthy volunteers welcome
- Washington University in Saint Louis School of Medicine Emergency Care and Research Core, St Louis
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, GA9 studies
- Washington, DC7 studies
- Charlottesville, VA5 studies
- Chicago, IL5 studies
- Philadelphia, PA5 studies
- Seattle, WA4 studies
- Hialeah, FL4 studies
- Houston, TX4 studies
- Baltimore, MD4 studies
- Salt Lake City, UT4 studies
- Durham, NC4 studies
- Miami, FL3 studies
Other studies in St. Louis
- Non-Small Cell Lung Cancer71 studies
- Breast Cancer64 studies
- Metastatic Cancer53 studies
- Colorectal Cancer49 studies
- Prostate Cancer47 studies
- Cancer (all types)46 studies
- Lung Cancer39 studies
- Ovarian Cancer37 studies
- Pancreatic Cancer33 studies
- Endometrial Cancer29 studies
- Head and Neck Squamous Cell Carcinoma28 studies
- Heart Failure26 studies
From ClinicalTrials.gov, data retrieved Sep 30, 2026. Each study sets its own eligibility; the study team decides who can join.