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Asthma clinical trials recruiting in the U.S.

97 studies for Asthma are recruiting participants at sites across the United States.

Asthma causes one's airways to become sore and swollen. An attack means a person's lungs are getting less air. Learn about two types of treatment.

Cities with the most studies

• Miami, FL12 studies
• Boston, MA11 studies
• New York City, NY11 studies
• Dallas, TX10 studies
• Durham, NC10 studies
• Oklahoma City, OK10 studies
• The Bronx, NY9 studies
• Washington, DC9 studies
• Kansas City, KS8 studies
• Houston, TX8 studies
• Charlotte, NC7 studies
• Aurora, CO7 studies
• St. Louis, MO7 studies
• Tampa, FL7 studies
• Cincinnati, OH7 studies
• Pittsburgh, PA7 studies
• Colorado Springs, CO6 studies
• San Antonio, TX6 studies
• Toledo, OH5 studies
• Philadelphia, PA5 studies
• Austin, TX5 studies
• McKinney, TX5 studies
• San Jose, CA5 studies
• Cleveland, OH5 studies
• Ann Arbor, MI5 studies
• Evansville, IN5 studies
• Orlando, FL5 studies
• Baltimore, MD5 studies
• El Paso, TX4 studies
• Newport Beach, CA4 studies
• Milwaukee, WI4 studies
• Bakersfield, CA4 studies
• Omaha, NE4 studies
• Los Angeles, CA4 studies
• Denver, CO4 studies
• Lancaster, CA4 studies
• Columbia, MO4 studies
• Long Beach, CA4 studies
• San Diego, CA4 studies
• Nashville, TN4 studies

By state

• Alabama6 studies
• Arizona8 studies
• California23 studies
• Colorado18 studies
• District of Columbia3 studies
• Florida24 studies
• Georgia7 studies
• Illinois10 studies
• Indiana4 studies
• Kansas10 studies
• Kentucky7 studies
• Louisiana6 studies
• Maryland10 studies
• Massachusetts15 studies
• Michigan10 studies
• Missouri11 studies
• Nebraska5 studies
• Nevada5 studies
• New Jersey8 studies
• New York23 studies
• North Carolina16 studies
• Ohio14 studies
• Oklahoma10 studies
• Oregon4 studies
• Pennsylvania11 studies
• South Carolina9 studies
• South Dakota3 studies
• Tennessee4 studies
• Texas20 studies
• Utah4 studies
• Virginia5 studies
• Wisconsin7 studies

Recently updated studies

From ClinicalTrials.gov, data retrieved Sep 29, 2026. Each study sets its own eligibility; the study team decides who can join.