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Obesity clinical trials in Washington, DC

33 studies for Obesity are looking for participants at sites in and around Washington (within about 30 miles). Open a study to see who can join and how to contact the study team.

Recruiting for a study here? Feature it at the top of this page — $99 for 30 days →

The RESET System Pivotal Clinical Trial (Protocol Revision H)

Recruiting
  • MedStar Health Research Institute, Washington D.C.
Ages 22 to 65 · All sexes · Updated Oct 5, 2026 · NCT04101669

New Heart Imaging Techniques to Evaluate Possible Heart Disease

RecruitingHealthy volunteers welcome
  • National Institutes of Health Clinical Center, Bethesda · 7 mi away
Ages 18 to 100 · All sexes · Updated Oct 2, 2026 · NCT01399385

Tailoring Mobile Health Technology to Reduce Obesity and Improve Cardiovascular Health in Resource-Limited Neighborhood Environments

RecruitingHealthy volunteers welcome
  • National Institutes of Health Clinical Center, Bethesda · 7 mi away
Ages 21 to 75 · Women · Updated Oct 2, 2026 · NCT03288207

Heart Health Study in Washington D.C. to Develop a Community-Based Behavioral Weight Loss Intervention

RecruitingObservational studyHealthy volunteers welcomeMentions payment for participants
  • National Institutes of Health Clinical Center, Bethesda · 7 mi away
Ages 19 to 85 · All sexes · Updated Oct 2, 2026 · NCT01927783

Characterization of Patients With Uncommon Presentations and/or Uncommon Diseases Associated With the Cardiovascular System

RecruitingObservational studyHealthy volunteers welcome
  • Hope Center, Washington D.C.
  • National Institutes of Health Clinical Center, Bethesda · 7 mi away
Ages 1 to 100 · All sexes · Updated Oct 2, 2026 · NCT01143454

Physical and Behavioral Traits of Overweight and Obese Adults

RecruitingObservational studyHealthy volunteers welcome
  • National Institutes of Health Clinical Center, Bethesda · 7 mi away
Ages 18 to 100 · All sexes · Updated Sep 28, 2026 · NCT00428987

A Research Study Investigating How Well the Medicine Zenagamtide Helps People With Excess Body Weight Lose Weight Compared to Semaglutide

RecruitingPhase 3
  • Med Home Development Grp, Washington D.C.
Ages 18 and older · All sexes · Updated Sep 28, 2026 · NCT07668414

Diabetes and Heart Disease Risk in Blacks

RecruitingObservational studyHealthy volunteers welcome
  • National Institutes of Health Clinical Center, Bethesda · 7 mi away
Ages 18 to 70 · All sexes · Updated Sep 28, 2026 · NCT00001853

Mirikizumab and Tirzepatide Administered in Adult Participants With Moderately to Severely Active Crohn's Disease and Obesity or Overweight

RecruitingPhase 3
  • Capital Digestive Care - Chevy Chase, Chevy Chase · 8 mi away
Ages 18 to 70 · All sexes · Updated Sep 24, 2026 · NCT06937099

Mirikizumab Administered at the Same Time as Tirzepatide in Adult Participants With Moderately to Severely Active Ulcerative Colitis and Obesity or Overweight: Phase 3b Study

RecruitingPhase 3
  • Capital Digestive Care - Chevy Chase, Chevy Chase · 8 mi away
Ages 18 to 70 · All sexes · Updated Sep 24, 2026 · NCT06937086

A Study of Eloralintide (LY3841136) in Participants With Obstructive Sleep Apnea and Obesity or Overweight

RecruitingPhase 3
  • Flourish Research - Bowie, Bowie · 17 mi away
Ages 18 and older · All sexes · Updated Sep 22, 2026 · NCT07369011

A Study of Eloralintide (LY3841136) in Participants With Obesity, or Overweight Without Type 2 Diabetes

RecruitingPhase 3
  • MedStar Health Research Institute (MedStar Physician Based Research Network), Hyattsville · 6 mi away
Ages 18 and older · All sexes · Updated Sep 22, 2026 · NCT07321886

A Study to Evaluate Effect of AZD6234 in Adult Participants With Type 2 Diabetes Mellitus and Obesity or Overweight

RecruitingPhase 3
  • Research Site, Lanham · 11 mi away
  • Research Site, Beltsville · 12 mi away
Ages 18 and older · All sexes · Updated Sep 22, 2026 · NCT07784270

Children s Growth and Behavior Study

RecruitingObservational studyHealthy volunteers welcomeMentions payment for participants
  • National Institutes of Health Clinical Center, Bethesda · 7 mi away
Ages 8 to 100 · All sexes · Updated Sep 21, 2026 · NCT02390765

Effect of Nicotinamide Riboside on Ketosis, Fat Oxidation & Metabolic Rate

Recruiting
  • National Institutes of Health Clinical Center, Bethesda · 7 mi away
Ages 18 to 65 · All sexes · Updated Sep 18, 2026 · NCT06044935

Plant-Based Online Weight Loss Through Education and Resources Program and Study

Recruiting
  • Physicians Committee for Responsible Medicine, Washington D.C.
Ages 18 and older · All sexes · Updated Sep 17, 2026 · NCT07095543

Youth-Onset Type 2 Diabetes and Heart Disease: The Young at Heart Prospective Cohort Study

RecruitingObservational studyHealthy volunteers welcome
  • Children's National Hospital (CNH), Washington D.C.
  • National Institutes of Health Clinical Center, Bethesda · 7 mi away
Ages 12 to 25 · All sexes · Updated Sep 17, 2026 · NCT06730113

A Study of Once-daily Oral ASC30 to Evaluate the Efficacy and Safety in Adult Participants With Obesity or Overweight With Type 2 Diabetes

RecruitingPhase 3
  • AURORA-2 Clinical Site, Washington D.C.
  • AURORA-2 Clinical Site, Bowie · 17 mi away
Ages 18 and older · All sexes · Updated Sep 16, 2026 · NCT07743450

Maridebart Cafraglutide in Heart Failure With Preserved or Mildly Reduced Ejection Fraction and Obesity

RecruitingPhase 3
  • Metropolitan Cardiovascular Consultants LLC, Beltsville · 12 mi away
  • Flourish Bowie, Bowie · 17 mi away
Ages 18 to 99 · All sexes · Updated Sep 16, 2026 · NCT07037459

A Study of Once-daily Oral ASC30 to Evaluate the Efficacy and Safety in Adult Participants With Obesity or Overweight With Weight-Related Comorbidities

RecruitingPhase 3
  • AURORA-1 Clinical Site, Washington D.C.
  • AURORA-1 Clinical Site, Bowie · 17 mi away
Ages 18 and older · All sexes · Updated Sep 16, 2026 · NCT07743463

A Clinical Study to Evaluate the Effects of Enicepatide (RO7795068) in Participants With Obesity or Overweight and Type 2 Diabetes

RecruitingPhase 3
  • Emerson Clinical Research Institute, Washington D.C.
Ages 18 and older · All sexes · Updated Sep 14, 2026 · NCT07351058

A Study of Aleniglipron in Adults With Obesity or Overweight and Type 2 Diabetes Mellitus (ACCOMPLISH-2)

RecruitingPhase 3Healthy volunteers welcome
  • ACCOMPLISH-2 Research Site, Silver Spring · 7 mi away
Ages 18 to 79 · All sexes · Updated Sep 11, 2026 · NCT07654374

How a Single Workout Affects Gut Bugs in Women With Different Fitness Levels and Body Types

RecruitingHealthy volunteers welcome
  • Milken Institute School of Public Health, The George Washington University, Washington D.C.
Ages 21 to 40 · Women · Updated Sep 9, 2026 · NCT06691100

A Research Study to Look at How Well NNC0487-0111 Works Compared to Placebo in People With Heart Failure and Obesity

RecruitingPhase 3
  • The GW Medical Faculty Associates, Washington D.C.
  • Flourish Research Bowie, Bowie · 17 mi away
Ages 18 and older · All sexes · Updated Aug 18, 2026 · NCT07567001

Evaluation of Children With Endocrine and Metabolic-Related Conditions

RecruitingObservational study
  • National Institutes of Health Clinical Center, Bethesda · 7 mi away
3 Months – 100 Years · All sexes · Updated Aug 13, 2026 · NCT02769975

Prebiotic Inulin for Late-Reproductive Individuals

Recruiting
  • Milken Institute School of Public Health, Washington D.C.
Ages 40 to 55 · Women · Updated Aug 11, 2026 · NCT07724522

Efficacy and Safety of Aleniglipron in Participants With Obesity or Overweight With a Weight-Related Comorbidity (ACCOMPLISH-1)

RecruitingPhase 3
  • ACCOMPLISH-1 Research Site, Silver Spring · 7 mi away
Ages 18 to 79 · All sexes · Updated Aug 10, 2026 · NCT07654361

Diet Order Effects of Low Fat vs. Low Carb Diets on Body Fat Change

Recruiting
  • National Institutes of Health Clinical Center, Bethesda · 7 mi away
Ages 18 to 50 · All sexes · Updated Jul 31, 2026 · NCT06325722

Mechanisms Underlying Individual Variations of Taste and Smell in Obesity

RecruitingObservational studyHealthy volunteers welcome
  • National Institutes of Health Clinical Center, Bethesda · 7 mi away
Ages 18 to 65 · All sexes · Updated Jul 22, 2026 · NCT04714892

MEHMO Natural History and Biomarkers

RecruitingObservational study
  • National Institutes of Health Clinical Center, Bethesda · 7 mi away
1 Week – 100 Years · All sexes · Updated Jun 25, 2026 · NCT06019182

Dinner Time for Obesity and Prediabetes

RecruitingHealthy volunteers welcome
  • National Institutes of Health Clinical Center, Bethesda · 7 mi away
Ages 18 to 50 · All sexes · Updated Apr 13, 2026 · NCT05745441

Diabetes Reversal Online Program and Study (DROP Study)

RecruitingHealthy volunteers welcome
  • Physician Committee for Responsible Medicine, Washington D.C.
Ages 18 and older · All sexes · Updated Apr 18, 2024 · NCT05572502

About Obesity

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

More about Obesity on MedlinePlus

Obesity trials in other cities

Other studies in Washington

From ClinicalTrials.gov, data retrieved Oct 6, 2026. Each study sets its own eligibility; the study team decides who can join.