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Obesity clinical trials recruiting in the U.S.

482 studies for Obesity are recruiting participants at sites across the United States.

Read about the causes of obesity and find out what you can do to decrease your risk of its associated health issues.

Cities with the most studies

• Houston, TX44 studies
• Chicago, IL41 studies
• San Antonio, TX40 studies
• New York City, NY40 studies
• Washington, DC33 studies
• Dallas, TX31 studies
• Boston, MA29 studies
• Orlando, FL29 studies
• Atlanta, GA27 studies
• Miami, FL27 studies
• Las Vegas, NV26 studies
• Baltimore, MD25 studies
• Jacksonville, FL24 studies
• Birmingham, AL24 studies
• St. Louis, MO23 studies
• Phoenix, AZ23 studies
• San Diego, CA23 studies
• Philadelphia, PA23 studies
• Los Angeles, CA22 studies
• Aurora, CO21 studies
• Austin, TX21 studies
• Durham, NC20 studies
• Cincinnati, OH20 studies
• Indianapolis, IN20 studies
• Concord, CA18 studies
• Arlington, VA18 studies
• Salt Lake City, UT18 studies
• Nashville, TN17 studies
• Charlotte, NC17 studies
• Havelock, NC17 studies
• Tucson, AZ17 studies
• Louisville, KY17 studies
• Baton Rouge, LA17 studies
• Johns Creek, GA16 studies
• Columbus, OH15 studies
• Wilmington, NC15 studies
• Kansas City, KS14 studies
• Grand Prairie, TX14 studies
• Providence, RI14 studies
• Minneapolis, MN13 studies

By state

• Alabama39 studies
• Arizona43 studies
• Arkansas13 studies
• California101 studies
• Colorado27 studies
• Connecticut23 studies
• District of Columbia12 studies
• Florida73 studies
• Georgia47 studies
• Hawaii13 studies
• Idaho21 studies
• Illinois56 studies
• Indiana24 studies
• Iowa9 studies
• Kansas34 studies
• Kentucky27 studies
• Louisiana34 studies
• Maine3 studies
• Maryland53 studies
• Massachusetts46 studies
• Michigan29 studies
• Minnesota28 studies
• Mississippi15 studies
• Missouri53 studies
• Montana9 studies
• Nebraska10 studies
• Nevada28 studies
• New Hampshire5 studies
• New Jersey21 studies
• New Mexico7 studies
• New York75 studies
• North Carolina62 studies
• North Dakota8 studies
• Ohio48 studies
• Oklahoma21 studies
• Oregon18 studies
• Pennsylvania49 studies
• Rhode Island19 studies
• South Carolina44 studies
• South Dakota7 studies
• Tennessee39 studies
• Texas82 studies
• Utah29 studies
• Virginia44 studies
• Washington33 studies
• West Virginia4 studies
• Wisconsin11 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.