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Heart Diseases clinical trials in St. Louis, MO

9 studies for Heart Diseases 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 →

About Heart Diseases

Heart disease is the leading cause of death in the U.S. Learn about the different types of heart diseases, and what you can do to try to prevent them.

More about Heart Diseases on MedlinePlus

Heart Diseases trials in other cities

• New York City, NY18 studies
• Boston, MA14 studies
• Cleveland, OH13 studies
• Los Angeles, CA12 studies
• Portland, OR11 studies
• Philadelphia, PA11 studies
• Atlanta, GA10 studies
• Dallas, TX10 studies
• Durham, NC10 studies
• Rochester, MN10 studies
• Houston, TX9 studies
• Phoenix, AZ9 studies

Other studies in St. Louis

• Non-Small Cell Lung Cancer73 studies
• Breast Cancer64 studies
• Metastatic Cancer54 studies
• Colorectal Cancer50 studies
• Cancer (all types)46 studies
• Prostate Cancer46 studies
• Lung Cancer39 studies
• Ovarian Cancer38 studies
• Pancreatic Cancer33 studies
• Endometrial Cancer29 studies
• Head and Neck Squamous Cell Carcinoma28 studies
• Heart Failure26 studies

From ClinicalTrials.gov, data retrieved Oct 6, 2026. Each study sets its own eligibility; the study team decides who can join.