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Parkinson's Disease clinical trials recruiting in the U.S.

211 studies for Parkinson's Disease are recruiting participants at sites across the United States.

Parkinson's disease (PD) is a movement disorder. It causes tremors, stiffness, and slow movement. It gets worse over time. Learn what can help.

Cities with the most studies

• New York City, NY25 studies
• Cleveland, OH19 studies
• Boston, MA19 studies
• Minneapolis, MN17 studies
• New Haven, CT15 studies
• San Francisco, CA14 studies
• Nashville, TN14 studies
• Miami, FL14 studies
• Philadelphia, PA14 studies
• Farmington Hills, MI13 studies
• Tampa, FL13 studies
• Charleston, SC13 studies
• Chicago, IL13 studies
• Birmingham, AL12 studies
• Atlanta, GA12 studies
• Gainesville, FL12 studies
• Ann Arbor, MI11 studies
• Portland, OR11 studies
• Boca Raton, FL11 studies
• Orlando, FL10 studies
• Washington, DC10 studies
• Los Angeles, CA10 studies
• Aurora, CO10 studies
• Dallas, TX9 studies
• Round Rock, TX9 studies
• Mountain View, CA9 studies
• Houston, TX9 studies
• Baltimore, MD9 studies
• Durham, NC9 studies
• St. Louis, MO9 studies
• Kirkland, WA8 studies
• Kansas City, KS8 studies
• Spokane, WA8 studies
• San Diego, CA7 studies
• Phoenix, AZ6 studies
• Las Vegas, NV6 studies
• Pittsburgh, PA6 studies
• Columbus, OH6 studies
• Lexington, KY6 studies
• Hollywood, FL5 studies

By state

• Alabama13 studies
• Arizona13 studies
• Arkansas5 studies
• California37 studies
• Colorado15 studies
• Connecticut20 studies
• Delaware3 studies
• District of Columbia4 studies
• Florida38 studies
• Georgia13 studies
• Illinois17 studies
• Indiana4 studies
• Iowa4 studies
• Kansas10 studies
• Kentucky9 studies
• Louisiana3 studies
• Maryland15 studies
• Massachusetts20 studies
• Michigan22 studies
• Minnesota20 studies
• Missouri10 studies
• Nevada6 studies
• New Jersey3 studies
• New Mexico5 studies
• New York32 studies
• North Carolina15 studies
• Ohio25 studies
• Oklahoma4 studies
• Oregon11 studies
• Pennsylvania18 studies
• South Carolina13 studies
• Tennessee17 studies
• Texas25 studies
• Utah5 studies
• Vermont4 studies
• Virginia10 studies
• Washington15 studies
• Wisconsin3 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.