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Breast Cancer clinical trials in San Antonio, TX

47 studies for Breast Cancer are looking for participants at sites in and around San Antonio (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 Breast Cancer

Breast cancer is a cancer that starts in the breast tissue, when cells change and grow out of control. These extra cells can form a mass called a tumor.

More about Breast Cancer on MedlinePlus

Breast Cancer trials in other cities

• New York City, NY136 studies
• Houston, TX126 studies
• Boston, MA112 studies
• Nashville, TN81 studies
• Los Angeles, CA73 studies
• Edison, NJ68 studies
• St. Louis, MO64 studies
• Queens, NY64 studies
• Durham, NC64 studies
• Chicago, IL59 studies
• Philadelphia, PA56 studies
• Dallas, TX55 studies

Other studies in San Antonio

• Non-Small Cell Lung Cancer59 studies
• Colorectal Cancer46 studies
• Metastatic Cancer44 studies
• Cancer (all types)41 studies
• Obesity40 studies
• Type 2 Diabetes37 studies
• Overweight34 studies
• Ovarian Cancer31 studies
• Pancreatic Cancer31 studies
• Prostate Cancer28 studies
• Endometrial Cancer27 studies
• Lung Cancer26 studies

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