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ClinicalTrials.gov 306 recruiting now early-phase tilt #3 of 28,707 conditions

Obesity: early-phase trial registry

306 of 1,057 indexed Obesity trials are currently recruiting, with more weight in Phase 1-2.

Corpus placement: #3 of 28,707 conditions by registered trial count.

1,057 US clinical trials · 306 currently recruiting · #3 of 28,707 conditions by registered trial count

Obesity: 1,057 US clinical trials tracked, 306 recruiting.

Obesity is the subject of 1,057 registered US clinical trials on ClinicalTrials.gov, 306 of them currently open to new participants. 107 are in Phase 3-4 (later-stage) and 196 in Phase 1-2 (earlier-stage). The most active sponsor is Eli Lilly and Company, running 48 of these trials.

Enrollment posture brief

Registry condition obesity

OPEN 306 | RECR 29% | LATE 107 | EARLY 196 | RANK #3 | SPON 48

Nearest open-share peer: Metastatic Pancreatic Adenocarcinoma (29% recruiting · 38 trials)

Prostate Cancer36.7%Depression35.7%Breast Cancer33.8%Obesity (this)29%Healthy20.5%
Open-enrollment share among volume-matched conditions near Obesity

Obesity lists 306 open slots (29% of 1,057 indexed trials). Peers are matched on registered volume, not therapeutic-area browse lists. How peer matching works →

Key findings

What ClinicalTrials.gov does not surface for Obesity on its own pages , computed from the registry mirror as of 2026-08-08. Each line carries its own denominator so it can be quoted as it stands.

  1. Obesity is recruiting below its size-band peers.

    306 of 1,057 indexed trials (28.9%) are open to enrollment, against a 37.1% average across 139 conditions with 100+ trials. The peer set uses the same ClinicalTrials.gov-derived counts as this page.

  2. Sponsorship of Obesity trials is spread across many organizations.

    Eli Lilly and Company accounts for 48 of 1,057 trials (4.5%). 314 distinct sponsors appear on at least one study for this condition label.

  3. Typical Obesity enrolment sits around 90 participants.

    Median target enrolment is 90 among the 1,054 trials that report a genuine target (sentinel values excluded). 555 of those (52.7%) plan for fewer than 100 participants.

  4. Obesity research is mostly interventional.

    894 interventional and 163 observational studies make up this index (84.6% interventional). Study type is sponsor-reported on ClinicalTrials.gov.

Phase 195Phase 2101Phase 369Phase 438

Open and recent trials

1,057 total, page 1 of 22

RECRUITING NA 250,000 participants

Personalized Responses to Dietary Composition Trial 3

Zoe Global Limited

NCT04735835

RECRUITING 100,000 participants

Research Framework Exploring Sleep Health

Scripps Translational Science Institute

NCT05197738

RECRUITING 100,000 participants

International Weight Control Registry

Tufts University

NCT04907396

RECRUITING Phase 3 12,800 participants

Evaluating the Impact of Maridebart Cafraglutide on Cardiovascular Outcomes in Participants With Atherosclerotic Cardiovascular Disease and Overweight or Obesity

Amgen

NCT07037433

RECRUITING 10,000 participants

Triage Survey for Cardiovascular, Obesity, and Related Endocrine Trial Eligibility

Brooklyn Clinical Research

NCT06412536

RECRUITING open-ended (no fixed target)

Endoscopic Bariatric Therapies (EBTs): A Retrospective and Prospective Multicenter Registry

Weill Medical College of Cornell University

NCT04494048

RECRUITING Phase 4 8,600 participants

Effect of Naltrexone Hydrochloride ER and Bupropion Hydrochloride ER Combination (Contrave®/Mysimba®) on Major Adverse Cardiovascular Events (MACE)

Currax Pharmaceuticals

NCT06098079

RECRUITING 7,000 participants

Non-interventional Pre-screening Protocol Aims to Evaluate Participants for Potential Trial Eligibility in Future Clinical Trials/Studies Focusing on Metabolic and Psychiatric Health.

Clindove Research

NCT07106879

RECRUITING NA 6,600 participants

Motivational Wellness Coaching to Reduce Childhood Obesity in Families and Kids

Kaiser Permanente

NCT05143697

RECRUITING NA 6,200 participants

Advancing Biopsychosocial Care Training Initiative

Washington University School of Medicine

NCT07049861

RECRUITING Phase 3 5,056 participants

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

Amgen

NCT07037459

RECRUITING 5,000 participants

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

National Heart, Lung, and Blood Institute (NHLBI)

NCT01143454

RECRUITING NA 5,000 participants

Optimizing a Mobile Health Platform for Sleep Promotion and Obesity Prevention in Children

Children's Hospital of Philadelphia

NCT05703347

RECRUITING 5,000 participants

Community Park-Based Programs for Health Promotion: Fit2Play Prospective Cohort Study

Duke University

NCT06595251

RECRUITING NA 4,000 participants

New Heart Imaging Techniques to Evaluate Possible Heart Disease

National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)

NCT01399385

RECRUITING NA 3,600 participants

Building Connections

Massachusetts General Hospital

NCT07091032

RECRUITING 3,200 participants

Identification of Phenotypic Factors That Predict Success for Weight Loss and Long-term Weight Maintenance

University of Michigan

NCT02043457

RECRUITING 2,821 participants

Healthy Start: Exploring the Fuel-mediated Programming of Neonatal Growth

University of Colorado, Denver

NCT02273297

RECRUITING 2,000 participants

Physical and Behavioral Traits of Overweight and Obese Adults

National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)

NCT00428987

RECRUITING 2,000 participants

Diabetes and Heart Disease Risk in Blacks

National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)

NCT00001853

RECRUITING Phase 3 1,980 participants

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

Eli Lilly and Company

NCT07321886

RECRUITING Phase 3 1,800 participants

Efficacy and Safety of KAI-9531 in Participants Living With Obesity or Overweight With Weight-Related Comorbidities Who Do Not Have Diabetes

Kailera

NCT07284875

RECRUITING Phase 2 1,785 participants

Taxi ROADmAP (Realizing Optimization Around Diet And Physical Activity)

Memorial Sloan Kettering Cancer Center

NCT05770570

RECRUITING NA 1,500 participants

Scalable TELeheaLth Cancer CARe: The STELLAR Program to Treat Cancer Risk Behaviors

Northwestern University

NCT05687604

RECRUITING 1,500 participants

Children s Growth and Behavior Study

Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)

NCT02390765

RECRUITING 1,500 participants

Early Tracking of Childhood Health Determinants (ETCHED) Study

National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)

NCT03481829

RECRUITING NA 1,320 participants

Facilitated Transitions From Postpartum to Primary Care Coordination for People With Chronic Conditions

Massachusetts General Hospital

NCT06557005

RECRUITING NA 1,319 participants

Family COMIDA (Consumo de Opciones Más Ideales De Alimentos) (Eating More Ideal Food Options)

Memorial Sloan Kettering Cancer Center

NCT07144800

RECRUITING Phase 2 1,217 participants

A Master Protocol Study (LY900038) of Multiple Intervention-Specific-Appendices (ISAs) in Adult Participants With Obesity or Overweight

Eli Lilly and Company

NCT06143956

RECRUITING Phase 3 1,200 participants

Efficacy and Safety of KAI-9531 Administered Once Weekly Compared With Semaglutide and Placebo in Participants Living With Obesity Who Do Not Have Diabetes

Kailera

NCT07284979

RECRUITING Phase 3 1,200 participants

A Master Protocol for Orforglipron (LY3502970) in Participants With Obesity or Overweight With and Without Type 2 Diabetes

Eli Lilly and Company

NCT06993792

RECRUITING Phase 3 1,150 participants

AMAZE 1: A Research Study Investigating How Well the Medicine NNC0487-0111 Helps People With Excess Body Weight Lose Weight

Novo Nordisk A/S

NCT07339423

RECRUITING Phase 3 1,035 participants

A Study of Eloralintide (LY3841136) in Participants With Obesity or Overweight, and Type 2 Diabetes

Eli Lilly and Company

NCT07282600

RECRUITING 1,000 participants

Community Park-Based Programs for Health Promotion: Active Older Adults Prospective Cohort Study

Duke University

NCT06604650

RECRUITING 930 participants

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

National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)

NCT06730113

RECRUITING NA 924 participants

Evaluation of Child Care Staff Weight Management Program

UNC Lineberger Comprehensive Cancer Center

NCT05656807

RECRUITING Phase 3 900 participants

A Study of Eloralintide (LY3841136) in Participants With Persistent Obesity Who Are Treated With a Weekly Incretin

Eli Lilly and Company

NCT07392190

RECRUITING NA 825 participants

Randomized Trial of Healthy Family Foundations

Penn State University

NCT05630482

RECRUITING Phase 3 800 participants

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

Eli Lilly and Company

NCT07369011

RECRUITING NA 750 participants

Efficacy Trial of Healthy Together ("Juntos")

University of Miami

NCT06489262

RECRUITING NA 722 participants

Strategies for Implementing a Postpartum Lifestyle Intervention in WIC Clinics

Tulane University

NCT06116149

RECRUITING NA 625 participants

Milk-Tot Study: Impact of Whole Versus Low-fat Milk on Child Health

University of California, Davis

NCT06230510

RECRUITING Phase 1 600 participants

Pharmacogenetics of Response to GLP1R Agonists

University of Maryland, Baltimore

NCT05071898

RECRUITING Phase 3 600 participants

A Study of Orforglipron (LY3502970) in Participants With Obesity or Overweight and at Least One Weight-Related Comorbidity

Eli Lilly and Company

NCT06972459

RECRUITING Phase 3 600 participants

A Study of Orforglipron (LY3502970) in Participants With Obesity or Overweight and Type 2 Diabetes

Eli Lilly and Company

NCT06972472

RECRUITING Phase 3 600 participants

A Study of Retatrutide (LY3437943) in Participants Without Type 2 Diabetes Who Have Obesity or Overweight

Eli Lilly and Company

NCT07357415

RECRUITING Phase 3 586 participants

A Study of Retatrutide (LY3437943) in Participants Who Have Obesity or Overweight and Chronic Low Back Pain

Eli Lilly and Company

NCT07035093

RECRUITING NA 522 participants

Collaborative Multi-level Obesity Intervention Engaging Underserved Communities Trial

Tulane University

NCT06835686

RECRUITING NA 503 participants

Avoid and Resist Strategies for Weight Management

Cedars-Sinai Medical Center

NCT05143931

RECRUITING 500 participants

Study to Investigate Genetic Causes of Severe Early Childhood Onset Obesity.

Columbia University

NCT01998750

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Phase Distribution

PhaseTrial count
Phase 1 95
Phase 2 101
Phase 3 69
Phase 4 38

Named interventions

Most-linked intervention names on Obesity records (sponsor-reported on ClinicalTrials.gov). Counts are trial links, not unique products.

Placebo Drug
108 trials
Tirzepatide Drug
30 trials
Semaglutide Drug
20 trials
Placebo Other
18 trials
Liraglutide Drug
10 trials
Exercise Behavioral
10 trials
Placebo Dietary supplement
10 trials
Orforglipron Drug
9 trials

US sites by state

Facility locations filed on Obesity trials. A trial with sites in several states counts in each.

California 197 trials
Florida 132 trials
Texas 95 trials
North Carolina 93 trials
New York 91 trials
Pennsylvania 86 trials
Massachusetts 80 trials
Illinois 73 trials

Source: ClinicalTrials.gov, National Library of Medicine. Data is informational only.

What to do with this Obesity page

1,057 registered trials, 306 currently recruiting, is a starting point for a conversation, not a diagnosis or a recommendation.

Trial and recruiting counts reflect ClinicalTrials.gov registry status as of the data vintage above; individual trial eligibility and enrollment status can change.

Every figure on PlainTrial is rendered directly from the ClinicalTrials.gov registry, no number is typed in by an editor. This Obesity condition card totals 1,057 registered trials; most-linked intervention Placebo; top US site state California. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.