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Attention Deficit Hyperactivity Disorder clinical trials recruiting in the U.S.

68 studies for Attention Deficit Hyperactivity Disorder are recruiting participants at sites across the United States.

Does your child have trouble paying attention? This may be a symptom of attention deficit hyperactive disorder (often called ADHD or ADD). Read more.

Cities with the most studies

• Boston, MA10 studies
• Cincinnati, OH8 studies
• Philadelphia, PA6 studies
• Austin, TX6 studies
• Washington, DC5 studies
• Pittsburgh, PA5 studies
• Orlando, FL5 studies
• Las Vegas, NV5 studies
• Irvine, CA4 studies
• Atlanta, GA4 studies
• Baltimore, MD4 studies
• Los Angeles, CA4 studies
• Jacksonville, FL4 studies
• Memphis, TN4 studies
• New York City, NY4 studies
• Durham, NC4 studies
• Jackson, MS4 studies
• Seattle, WA3 studies
• Sacramento, CA3 studies
• Houston, TX3 studies
• Mountain View, CA3 studies
• Harrisburg, PA3 studies
• Kendall, FL3 studies
• Gainesville, FL3 studies
• Long Beach, CA3 studies
• North Charleston, SC3 studies
• Little Rock, AR3 studies
• Portland, OR3 studies

By state

• Alabama4 studies
• Arkansas4 studies
• California15 studies
• Florida7 studies
• Georgia4 studies
• Kentucky3 studies
• Louisiana3 studies
• Maryland7 studies
• Massachusetts12 studies
• Michigan3 studies
• Mississippi4 studies
• Nevada5 studies
• New Jersey3 studies
• New York7 studies
• North Carolina5 studies
• Ohio9 studies
• Oregon4 studies
• Pennsylvania12 studies
• South Carolina5 studies
• Tennessee4 studies
• Texas8 studies
• Utah3 studies
• Virginia3 studies
• Washington4 studies

Recently updated studies

From ClinicalTrials.gov, data retrieved Sep 30, 2026. Each study sets its own eligibility; the study team decides who can join.