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Atrial Fibrillation clinical trials recruiting in the U.S.

107 studies for Atrial Fibrillation are recruiting participants at sites across the United States.

Atrial fibrillation (AF or AFib) is the most common type of arrhythmia (irregular heartbeat). Read about symptoms and treatment.

Cities with the most studies

• Boston, MA19 studies
• New York City, NY19 studies
• Atlanta, GA17 studies
• Cleveland, OH17 studies
• Jonesboro, AR13 studies
• Pittsburgh, PA12 studies
• Philadelphia, PA12 studies
• Ann Arbor, MI12 studies
• Chicago, IL12 studies
• Orlando, FL11 studies
• Cincinnati, OH10 studies
• Austin, TX10 studies
• Columbus, OH10 studies
• Indianapolis, IN10 studies
• St. Louis, MO10 studies
• Houston, TX10 studies
• Dallas, TX9 studies
• Los Angeles, CA9 studies
• Jacksonville, FL9 studies
• Miami, FL8 studies
• Aurora, CO8 studies
• Evanston, IL8 studies
• Queens, NY8 studies
• New Orleans, LA8 studies
• Washington, DC7 studies
• Detroit, MI7 studies
• Oklahoma City, OK7 studies
• Ventura, CA7 studies
• Louisville, KY7 studies
• Birmingham, AL7 studies
• Salt Lake City, UT7 studies
• Huntington Beach, CA7 studies
• Durham, NC7 studies
• Baltimore, MD7 studies
• The Bronx, NY7 studies
• San Francisco, CA7 studies
• San Diego, CA7 studies
• Sarasota, FL6 studies
• Mobile, AL6 studies
• Tampa, FL6 studies

By state

• Alabama12 studies
• Arizona12 studies
• Arkansas16 studies
• California30 studies
• Colorado12 studies
• Connecticut5 studies
• District of Columbia4 studies
• Florida22 studies
• Georgia18 studies
• Idaho3 studies
• Illinois22 studies
• Indiana12 studies
• Iowa8 studies
• Kansas8 studies
• Kentucky13 studies
• Louisiana12 studies
• Maine5 studies
• Maryland12 studies
• Massachusetts22 studies
• Michigan22 studies
• Minnesota9 studies
• Mississippi3 studies
• Missouri12 studies
• Nebraska3 studies
• New Jersey12 studies
• New Mexico3 studies
• New York31 studies
• North Carolina16 studies
• Ohio30 studies
• Oklahoma8 studies
• Oregon4 studies
• Pennsylvania22 studies
• South Carolina8 studies
• South Dakota4 studies
• Tennessee13 studies
• Texas25 studies
• Utah11 studies
• Virginia15 studies
• Washington11 studies
• West Virginia3 studies
• Wisconsin8 studies

Recently updated studies

From ClinicalTrials.gov, data retrieved Nov 15, 2026. Each study sets its own eligibility; the study team decides who can join.