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Pain clinical trials recruiting in the U.S.

205 studies for Pain are recruiting participants at sites across the United States.

Pain is a feeling triggered in the nervous system. You may feel it as a prick, tingle, sting, burn, or ache. Read about the causes and what can help.

Cities with the most studies

• Washington, DC15 studies
• Durham, NC15 studies
• Boston, MA14 studies
• New York City, NY11 studies
• Houston, TX10 studies
• New Haven, CT9 studies
• Pittsburgh, PA9 studies
• Los Angeles, CA9 studies
• San Diego, CA9 studies
• Baltimore, MD8 studies
• Salt Lake City, UT8 studies
• Seattle, WA7 studies
• Atlanta, GA6 studies
• Chicago, IL6 studies
• Gainesville, FL6 studies
• Indianapolis, IN5 studies
• Cincinnati, OH5 studies
• Greenburgh, NY5 studies
• St. Louis, MO5 studies
• Charlottesville, VA4 studies
• Ann Arbor, MI4 studies
• Birmingham, AL4 studies
• Charleston, SC4 studies
• Tallahassee, FL4 studies
• Mountain View, CA4 studies
• New Rochelle, NY4 studies
• Minneapolis, MN4 studies
• Edison, NJ4 studies
• Staten Island, NY4 studies
• San Antonio, TX4 studies
• Rochester, NY3 studies
• Aurora, CO3 studies
• Nashville, TN3 studies
• Austin, TX3 studies
• Queens, NY3 studies
• The Bronx, NY3 studies
• San Francisco, CA3 studies
• Miami, FL3 studies
• Cleveland, OH3 studies
• Philadelphia, PA3 studies

By state

• Alabama6 studies
• Arizona3 studies
• California30 studies
• Colorado7 studies
• Connecticut10 studies
• District of Columbia9 studies
• Florida21 studies
• Georgia10 studies
• Illinois10 studies
• Indiana5 studies
• Kansas3 studies
• Maryland15 studies
• Massachusetts16 studies
• Michigan6 studies
• Minnesota5 studies
• Missouri4 studies
• New Jersey10 studies
• New York24 studies
• North Carolina20 studies
• Ohio11 studies
• Oklahoma3 studies
• Oregon4 studies
• Pennsylvania14 studies
• South Carolina5 studies
• Tennessee6 studies
• Texas17 studies
• Utah8 studies
• Virginia9 studies
• Washington9 studies
• Wisconsin4 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.