Medical Information Only. Consult your healthcare provider before considering clinical trial enrollment.
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
Volume-matched condition peers
Nearest open-share peer: Metastatic Pancreatic Adenocarcinoma (29% recruiting · 38 trials)
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.
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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.
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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.
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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.
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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.
Open and recent trials
1,057 total, page 22 of 22
The Mobile Health Platform
Duke University
NCT02099513
Cryovagotomy Diabetes Trial
Emory University
NCT04276051
Pancreatic Enzymes to Restore Digestive Function in Malnourished Gastric Bypass Patients
University of Pittsburgh
NCT00510744
Leptin Biology in Adipose Tissue
Mayo Clinic
NCT01800864
Effects of Human Leptin Replacement
University of Miami
NCT00657605
Impact of Non-Commercialism Policy in Seattle Schools
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NCT00063700
Genetics, Metabolism and Weight Loss in Older, Obese Veterans
US Department of Veterans Affairs
NCT00018330
Phase Distribution
| Phase | Trial count |
|---|---|
| Phase 1 | 95 |
| Phase 2 | 101 |
| Phase 3 | 69 |
| Phase 4 | 38 |
Top Sponsors
Named interventions
Most-linked intervention names on Obesity records (sponsor-reported on ClinicalTrials.gov). Counts are trial links, not unique products.
US sites by state
Facility locations filed on Obesity trials. A trial with sites in several states counts in each.
Source: ClinicalTrials.gov, National Library of Medicine. Data is informational only.
Related
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.
- 306 Obesity trials are currently recruiting, check eligibility criteria before contacting a site. Browse recruiting trials
- Eli Lilly and Company sponsors the most Obesity trials on record, review their full trial history before evaluating a specific study. See Eli Lilly and Company's trials
- Bring the specific trial ID (NCT number) to your own doctor before enrolling, this page is a directory, not medical guidance. Read the trial-finding guide
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.