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Long COVID clinical trials recruiting in the U.S.

116 studies for Long COVID are recruiting participants at sites across the United States.

Anyone who has had COVID-19 can have long-lasting symptoms, know as long COVID. Learn about the symptoms and how to manage them, diagnosis, and prevention.

Cities with the most studies

• New York City, NY17 studies
• Houston, TX14 studies
• Chicago, IL12 studies
• Washington, DC12 studies
• Boston, MA11 studies
• Baltimore, MD11 studies
• Hialeah, FL8 studies
• Durham, NC8 studies
• San Francisco, CA8 studies
• Atlanta, GA7 studies
• San Diego, CA7 studies
• Miami, FL7 studies
• Pittsburgh, PA6 studies
• Los Angeles, CA6 studies
• Dallas, TX5 studies
• Salt Lake City, UT5 studies
• Seattle, WA5 studies
• Columbus, OH5 studies
• Louisville, KY5 studies
• San Antonio, TX4 studies
• Cincinnati, OH4 studies
• Mountain View, CA4 studies
• Nashville, TN4 studies
• Tampa, FL4 studies
• Charleston, SC3 studies
• Homestead, FL3 studies
• The Woodlands, TX3 studies
• Philadelphia, PA3 studies
• Cleveland, OH3 studies
• Sacramento, CA3 studies
• Detroit, MI3 studies
• Aurora, CO3 studies
• Boise, ID3 studies
• Omaha, NE3 studies
• Portland, OR3 studies
• Austin, TX3 studies
• New Orleans, LA3 studies
• St. Petersburg, FL3 studies
• Richmond, VA3 studies
• St. Louis, MO3 studies

By state

• Alabama5 studies
• Arizona4 studies
• California32 studies
• Colorado7 studies
• District of Columbia4 studies
• Florida14 studies
• Georgia10 studies
• Idaho3 studies
• Illinois14 studies
• Kentucky7 studies
• Louisiana6 studies
• Maryland22 studies
• Massachusetts11 studies
• Michigan7 studies
• Minnesota6 studies
• Missouri3 studies
• Nebraska3 studies
• Nevada4 studies
• New Jersey3 studies
• New York20 studies
• North Carolina11 studies
• Ohio12 studies
• Oregon3 studies
• Pennsylvania11 studies
• South Carolina4 studies
• Tennessee8 studies
• Texas24 studies
• Utah7 studies
• Virginia6 studies
• Washington6 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.