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Obesity clinical trials recruiting in the U.S.

473 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, IL40 studies
• New York City, NY39 studies
• San Antonio, TX39 studies
• Washington, DC34 studies
• Dallas, TX33 studies
• Orlando, FL33 studies
• Miami, FL28 studies
• Boston, MA26 studies
• Atlanta, GA26 studies
• Los Angeles, CA25 studies
• St. Louis, MO25 studies
• Jacksonville, FL25 studies
• San Diego, CA24 studies
• Baltimore, MD24 studies
• Birmingham, AL22 studies
• Austin, TX22 studies
• Philadelphia, PA22 studies
• Indianapolis, IN22 studies
• Las Vegas, NV21 studies
• Nashville, TN20 studies
• Aurora, CO20 studies
• Tucson, AZ20 studies
• Cincinnati, OH20 studies
• Phoenix, AZ19 studies
• Arlington, VA18 studies
• Durham, NC17 studies
• Louisville, KY17 studies
• Wilmington, NC17 studies
• Charlotte, NC16 studies
• Roswell, GA16 studies
• Concord, CA16 studies
• Salt Lake City, UT16 studies
• Havelock, NC15 studies
• Providence, RI14 studies
• Honolulu, HI14 studies
• Baton Rouge, LA14 studies
• Johns Creek, GA14 studies
• Rochester, NY14 studies
• Deltona, FL14 studies

By state

• Alabama38 studies
• Arizona40 studies
• Arkansas12 studies
• California99 studies
• Colorado25 studies
• Connecticut24 studies
• District of Columbia12 studies
• Florida80 studies
• Georgia46 studies
• Hawaii14 studies
• Idaho22 studies
• Illinois55 studies
• Indiana27 studies
• Iowa10 studies
• Kansas32 studies
• Kentucky30 studies
• Louisiana32 studies
• Maine3 studies
• Maryland52 studies
• Massachusetts42 studies
• Michigan31 studies
• Minnesota27 studies
• Mississippi15 studies
• Missouri55 studies
• Montana7 studies
• Nebraska9 studies
• Nevada23 studies
• New Hampshire3 studies
• New Jersey17 studies
• New Mexico8 studies
• New York73 studies
• North Carolina58 studies
• North Dakota8 studies
• Ohio43 studies
• Oklahoma20 studies
• Oregon17 studies
• Pennsylvania47 studies
• Rhode Island16 studies
• South Carolina41 studies
• South Dakota5 studies
• Tennessee38 studies
• Texas84 studies
• Utah25 studies
• Virginia43 studies
• Washington31 studies
• West Virginia4 studies
• Wisconsin11 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.