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Bariatric Surgery: later-stage trial registry
6 of 16 indexed Bariatric Surgery trials are currently recruiting, with more weight in Phase 3-4.
Corpus placement: #1,060 of 28,707 conditions by registered trial count.
16 US clinical trials · 6 currently recruiting · #1,060 of 28,707 conditions by registered trial count
Bariatric Surgery: 16 US clinical trials tracked, 6 recruiting.
Bariatric Surgery is the subject of 16 registered US clinical trials on ClinicalTrials.gov, 6 of them currently open to new participants. 4 are in Phase 3-4 (later-stage) and 2 in Phase 1-2 (earlier-stage). The most active sponsor is Brigham and Women's Hospital, running 3 of these trials.
Enrollment posture brief
Registry condition bariatric-surgery
OPEN 6 | RECR 38% | LATE 4 | EARLY 2 | RANK #1060 | SPON 3
Volume-matched condition peers
Nearest open-share peer: Acute-graft-versus-host Disease (38% recruiting · 8 trials)
Bariatric Surgery lists 6 open slots (38% of 16 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 Bariatric Surgery 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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Bariatric Surgery is recruiting below its size-band peers.
6 of 16 indexed trials (37.5%) are open to enrollment, against a 46.5% average across 27,806 conditions with fewer than 20 trials. The peer set uses the same ClinicalTrials.gov-derived counts as this page.
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One sponsor concentrates Bariatric Surgery research.
Brigham and Women's Hospital accounts for 3 of 16 trials (18.8%). 14 distinct sponsors appear on at least one study for this condition label.
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Most Bariatric Surgery trials plan to enrol fewer than 100 people.
Median target enrolment is 44 among the 16 trials that report a genuine target (sentinel values excluded). 12 of those (75%) plan for fewer than 100 participants.
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Bariatric Surgery research is mostly interventional.
12 interventional and 4 observational studies make up this index (75% interventional). Study type is sponsor-reported on ClinicalTrials.gov.
Open and recent trials
16 total, page 1 of 1
Simethicone as Part of ERAS in Bariatric Surgery Patients
Madigan Army Medical Center
NCT06812832
Oral Acetaminophen for Post-Op Pain Management in Bariatric Surgery Patients
Rutgers, The State University of New Jersey
NCT06658574
Lexion AP 50/30 Warmed Humidified Real Time CO2 Insufflation vs Airseal Recirculated CO2/Air Insufflation in Minimally Invasive Bariatric (Gastric Bypass) Surgery
The University of Texas Health Science Center, Houston
NCT05838300
2024 Tirzepatide-Bariatric Surgery
Marlene Starr
NCT06721507
Mechanistic and Clinical Outcomes of a Surgical Innovation Aimed at Minimizing GERD Associated With VSG (INNOVATE-VSG)
University of California, Irvine
NCT06783751
Physiologic Response to Bariatric Surgery and the Impact of Adjunct Semaglutide in Adolescents
University of Colorado, Denver
NCT06575738
Role of Dietary Habits in Efficacy of Bariatric Surgery - Study C
Brigham and Women's Hospital
NCT03482986
Role of Dietary Habits in Efficacy of Bariatric Surgery - Study B
Brigham and Women's Hospital
NCT03467906
Glucagon Dose-Response in Patients With Post-Bariatric Hypoglycemia
Joslin Diabetes Center
NCT06986603
Study on Impact of Lifestyle Change and Weight Loss Before Bariatric Surgery
Duquesne University
NCT00623792
Role of Dietary Habits in Efficacy of Bariatric Surgery - Study A
Brigham and Women's Hospital
NCT03470558
Gaining Optimism After Weight Loss Surgery (GOALS) II
Massachusetts General Hospital
NCT04868032
Bone Loss After Laparoscopic Roux-en-Y Gastric Bypass
Gundersen Lutheran Medical Foundation
NCT00975013
Bariatric Scalable Internet Treatments
Yale University
NCT03680703
Impact of Monthly High Dose Oral Cholecalciferol on Serum 25 Hydroxy Vitamin D Levels in Bariatric Surgery Subjects
Texas Tech University
NCT01871389
Effects of Gastric Bypass on Blood Levels of Duloxetine
Neuropsychiatric Research Institute, Fargo, North Dakota
NCT00989157
Phase Distribution
| Phase | Trial count |
|---|---|
| Phase 1 | 1 |
| Phase 2 | 1 |
| Phase 3 | 1 |
| Phase 4 | 3 |
Top Sponsors
Named interventions
Most-linked intervention names on Bariatric Surgery records (sponsor-reported on ClinicalTrials.gov). Counts are trial links, not unique products.
US sites by state
Facility locations filed on Bariatric Surgery 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 Bariatric Surgery page
16 registered trials, 6 currently recruiting, is a starting point for a conversation, not a diagnosis or a recommendation.
- 6 Bariatric Surgery trials are currently recruiting, check eligibility criteria before contacting a site. Browse recruiting trials
- Brigham and Women's Hospital sponsors the most Bariatric Surgery trials on record, review their full trial history before evaluating a specific study. See Brigham and Women's Hospital'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 Bariatric Surgery condition card totals 16 registered trials; most-linked intervention Guided Self-Help Behavioral Weight Loss; top US site state Massachusetts. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.