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Flu clinical trials in St. Louis, MO
7 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.
Recruiting for a study here? Feature it at the top of this page — $99 for 30 days →
A Study to Evaluate the Safety and Efficacy of MK-1406/CD388 for Prevention of Influenza (MK-1406-005/CD388.SQ.3.06)
RecruitingPhase 3
- Sundance Clinical Research LLC ( Site 0526), St Louis
A Study of Updated mRNA Seasonal Influenza Vaccines
RecruitingPhase 4Healthy volunteers welcome
- DelRicht Research at Amy Roberts MD and Associates, Town and Country · 14 mi away
Age-Associated Differences in Germinal Center Responses to Influenza and Rabies Vaccination in Humans
RecruitingPhase 4
- Washington University, St Louis
Efficacy and Safety of Tozorakimab in Patients Hospitalised for Viral Lung Infection Requiring Supplemental Oxygen
RecruitingPhase 3
- Research Site, St Louis
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
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, GA10 studies
- Washington, DC8 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
- Durham, NC4 studies
Other studies in St. Louis
- Non-Small Cell Lung Cancer68 studies
- Breast Cancer63 studies
- Metastatic Cancer52 studies
- Cancer (all types)51 studies
- Colorectal Cancer51 studies
- Prostate Cancer45 studies
- Ovarian Cancer37 studies
- Lung Cancer37 studies
- Pancreatic Cancer33 studies
- Head and Neck Squamous Cell Carcinoma32 studies
- Endometrial Cancer29 studies
- Multiple Myeloma26 studies
From ClinicalTrials.gov, data retrieved Nov 15, 2026. Each study sets its own eligibility; the study team decides who can join.