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ClinicalTrials.gov public records Last synced Sep 25, 2026, 4:58 PM EDT

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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Intervention: bariatric surgery Clear all
Not listed No phase listed Observational

Neuroimaging Predictors of Bariatric Surgical Outcome

NCT03582748
View directory record Official record
Conditions
Obesity
Interventions
sleeve gastrectomy, No sleeve gastrectomy
Procedure
Lead sponsor
Hartford Hospital
Other
Eligibility
18 Years to 55 Years
Enrollment
210 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2024
U.S. locations
1
States / cities
Hartford, Connecticut
Source: ClinicalTrials.gov public record
Updated Jun 10, 2024 · Synced Sep 25, 2026, 4:58 PM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Sleep, Insulin Sensitivity, and Weight in Adolescents Post-bariatric Surgery

NCT04202731
View directory record Official record
Conditions
Sleep
Interventions
PBS Study
Behavioral
Lead sponsor
University of Colorado, Denver
Other
Eligibility
12 Years to 21 Years
Enrollment
5 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2023
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Jul 26, 2023 · Synced Sep 25, 2026, 4:58 PM EDT
Completed No phase listed Observational Results available

Laparoscopic Versus Transabdominal Ultrasound in Morbidly Obese Patients

NCT00971750
View directory record Official record
Conditions
Cholelithiasis, Ultrasonography, Laparoscopic Gastric Bypass
Interventions
Not listed
Lead sponsor
Gundersen Lutheran Medical Foundation
Other
Eligibility
18 Years and older
Enrollment
253 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2011
U.S. locations
1
States / cities
La Crosse, Wisconsin
Source: ClinicalTrials.gov public record
Updated Jul 10, 2012 · Synced Sep 25, 2026, 4:58 PM EDT
Active, not recruiting Phase 2Phase 3 Interventional

GLP-1 Receptor Agonists Post-Bariatric Surgery (GRABS) Pilot Trial

NCT06162715
View directory record Official record
Conditions
Severe Obesity, Obesity, BMI Greater Than 30
Interventions
Tirzepatide, Standard of Care post-gastric bypass
Drug · Other
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
25 Years to 65 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Aug 3, 2026 · Synced Sep 25, 2026, 4:58 PM EDT
Withdrawn No phase listed Observational

Effects of Bariatric Surgery on Breast Density Improvement and Impact on Breast Cancer Risk in Severe Obese Patients

NCT04170335
View directory record Official record
Conditions
Breast Cancer, Morbid Obesity, Bariatric Surgery Candidate
Interventions
Bariatric surgery
Procedure
Lead sponsor
The Cleveland Clinic
Other
Eligibility
40 Years to 74 Years · Female only
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Weston, Florida
Source: ClinicalTrials.gov public record
Updated Sep 14, 2023 · Synced Sep 25, 2026, 4:58 PM EDT
Completed No phase listed Observational Results available

Post-Market Surveillance With a Novel mHealth Platform

NCT03436082
View directory record Official record
Conditions
Gastrectomy, Atrial Fibrillation
Interventions
A mobile health platform
Device
Lead sponsor
Yale University
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018
U.S. locations
2
States / cities
New Haven, Connecticut • Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Mar 18, 2021 · Synced Sep 25, 2026, 4:58 PM EDT
Completed Not applicable Interventional

Mechanisms of Diabetes Relapse After Bariatric Surgery

NCT01516320
View directory record Official record
Conditions
Type 2 Diabetes
Interventions
Roux-en-Y Gastric Bypass, Laparoscopic adjustable gastric banding, Vertical Sleeve Gastrectomy
Procedure
Lead sponsor
Blandine Laferrere
Other
Eligibility
18 Years to 65 Years
Enrollment
56 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2014
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jan 31, 2017 · Synced Sep 25, 2026, 4:58 PM EDT
Completed Phase 1 Interventional Results available

PET Imaging and Bariatric Surgery

NCT00801827
View directory record Official record
Conditions
Obesity, Morbid
Interventions
F-18 (fallypride)
Drug
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years to 60 Years
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2012
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Mar 16, 2017 · Synced Sep 25, 2026, 4:58 PM EDT
Completed Phase 4 Interventional Results available

Denosumab to Prevent High-Turnover Bone Loss After Bariatric Surgery

NCT04087096
View directory record Official record
Conditions
Bariatric Surgery Candidate, Bone Loss
Interventions
Denosumab, Placebo, Zoledronic Acid
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
25 Years and older
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2024
U.S. locations
2
States / cities
San Francisco, California • Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 28, 2025 · Synced Sep 25, 2026, 4:58 PM EDT
Active, not recruiting No phase listed Observational

Role of Dietary Habits in Efficacy of Bariatric Surgery - Study B

NCT03467906
View directory record Official record
Conditions
Bariatric Surgery, Sleeve Gastrectomy, Obesity
Interventions
In-laboratory assessment
Other
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
22 Years to 62 Years
Enrollment
44 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2028
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 3, 2025 · Synced Sep 25, 2026, 4:58 PM EDT
Completed No phase listed Observational Results available

Diabetes and Gastric By- Pass

NCT01153516
View directory record Official record
Conditions
Type 2 Diabetes
Interventions
Not listed
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
18 Years to 65 Years
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Mar 26, 2019 · Synced Sep 25, 2026, 4:58 PM EDT
Terminated Not applicable Interventional

Autologous Adipose-Derived Stromal Cells Delivered Intra-articularly in Patients With Osteoarthritis.

NCT01739504
View directory record Official record
Conditions
Osteoarthritis
Interventions
Liposuction with Local Anesthesia, Intra articular infusion of AD-SVF
Procedure · Biological
Lead sponsor
Ageless Regenerative Institute
Industry
Eligibility
18 Years to 80 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2017
U.S. locations
1
States / cities
Aventura, Florida
Source: ClinicalTrials.gov public record
Updated Nov 23, 2017 · Synced Sep 25, 2026, 4:58 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

The Metabolic and Genetic Drivers of Body Composition Changes Following Weight Loss Surgery

NCT07178704
View directory record Official record
Conditions
Bariatric Surgery Patients
Interventions
Not listed
Lead sponsor
The University of Texas Medical Branch, Galveston
Other
Eligibility
18 Years to 65 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
1
States / cities
Galveston, Texas
Source: ClinicalTrials.gov public record
Updated Jul 9, 2026 · Synced Sep 25, 2026, 4:58 PM EDT
Terminated Not applicable Interventional

Vitamin D to Improve Nutrition Prior to Bariatric Surgery and Investigate the Relationship With Negative Outcomes

NCT02212652
View directory record Official record
Conditions
Vitamin D Deficiency, Vitamin D Insufficiency
Interventions
Vitamin D, Placebo, Standard of Care
Dietary Supplement · Other
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 64 Years
Enrollment
70 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jun 5, 2019 · Synced Sep 25, 2026, 4:58 PM EDT
Terminated No phase listed Observational

Surgical Weight-Loss to Improve Functional Status Trajectories Following Total Knee Arthroplasty (SWIFT Trial)

NCT02598531
View directory record Official record
Conditions
Obesity, Osteoarthritis
Interventions
Not listed
Lead sponsor
Geisinger Clinic
Other
Eligibility
22 Years to 75 Years
Enrollment
289 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2024
U.S. locations
1
States / cities
Danville, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 21, 2025 · Synced Sep 25, 2026, 4:58 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Vitamin Supplementation After Bariatric Surgery

NCT02686905
View directory record Official record
Conditions
Complications of Bariatric Procedures, Avitaminosis
Interventions
Chewable Multivitamin with Iron, PatchMD Vitamin D3/Calcium Patch, PatchMD Multivitamin Patch, PatchMD B12 Energy Plus Patch, Chewable Calcium, Quick Dissolve B12
Dietary Supplement
Lead sponsor
California State Polytechnic University, Pomona
Other
Eligibility
18 Years to 65 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
1
States / cities
Brea, California
Source: ClinicalTrials.gov public record
Updated Sep 29, 2016 · Synced Sep 25, 2026, 4:58 PM EDT
Terminated No phase listed Observational Accepts healthy volunteers

Alcohol and Bariatric Surgery

NCT02766322
View directory record Official record
Conditions
Obesity
Interventions
Oral Alcohol challenge test Alcohol visit first, Oral Alcohol challenge test Placebo visit first, Intravenous Alcohol Challenge Test (Clamp), Intravenous Alcohol Self-administration Test
Other
Lead sponsor
University of Illinois at Urbana-Champaign
Other
Eligibility
21 Years to 64 Years · Female only
Enrollment
54 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2022
U.S. locations
1
States / cities
Urbana, Illinois
Source: ClinicalTrials.gov public record
Updated Mar 10, 2025 · Synced Sep 25, 2026, 4:58 PM EDT
Completed Not applicable Interventional

Probiotic Supplementation on Weight Loss

NCT03832439
View directory record Official record
Conditions
Bariatric Surgery Candidate
Interventions
Probiotic, microcrystalline cellulose
Dietary Supplement
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 65 Years
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Feb 20, 2022 · Synced Sep 25, 2026, 4:58 PM EDT
Terminated Not applicable Interventional Results available

Surgical Intervention in Bariatric Patients: Excess Weight Loss in the Morbidly Obese Following Gastric Plication

NCT01077193
View directory record Official record
Conditions
Morbid Obesity
Interventions
Gastric Plication
Procedure
Lead sponsor
Ethicon Endo-Surgery
Industry
Eligibility
18 Years to 65 Years
Enrollment
44 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
2
States / cities
Cleveland, Ohio • Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 6, 2014 · Synced Sep 25, 2026, 4:58 PM EDT
Completed No phase listed Observational

Gastric Bypass After Previous Anti-reflux Surgery

NCT01041105
View directory record Official record
Conditions
Clinically Severe Obesity, Gastroesophageal Reflux Disease
Interventions
Not listed
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years to 60 Years
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
1
States / cities
Fresno, California
Source: ClinicalTrials.gov public record
Updated Dec 31, 2009 · Synced Sep 25, 2026, 4:58 PM EDT
Completed Not applicable Interventional

Transforming Non-Invasive Liver Disease Detection by MRE: The Hepatogram

NCT02565446
View directory record Official record
Conditions
Obesity, Fatty Liver
Interventions
Magnetic Resolution Elastography (MRE)
Procedure
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
243 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2022
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Oct 11, 2023 · Synced Sep 25, 2026, 4:58 PM EDT
Completed Phase 4 Interventional Results available

Efficacy Of Quadratus Lumborum II Block For Laparoscopic Sleeve Gastrectomy

NCT04073056
View directory record Official record
Conditions
Morbid Obesity, High BMI
Interventions
Bupivacaine
Drug
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
18 Years to 65 Years
Enrollment
41 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jan 4, 2023 · Synced Sep 25, 2026, 4:58 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Mother and Child Health Outcomes After Maternal Bariatric Surgery

NCT03297307
View directory record Official record
Conditions
Weight Loss
Interventions
Presurgical Counseling
Behavioral
Lead sponsor
University of Nebraska
Other
Eligibility
19 Years to 55 Years
Enrollment
5 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2022
U.S. locations
1
States / cities
Omaha, Nebraska
Source: ClinicalTrials.gov public record
Updated Sep 27, 2023 · Synced Sep 25, 2026, 4:58 PM EDT
Enrolling by invitation Not applicable Interventional Accepts healthy volunteers

Biometabolic Outcomes After Weight Loss Surgery: An Individualized Approach

NCT04841057
View directory record Official record
Conditions
Obesity, Morbid, Metabolic Syndrome, NASH - Nonalcoholic Steatohepatitis
Interventions
50 cm BP limb length, 100 cm BP limb length, 150 cm BP limb length
Procedure
Lead sponsor
University of Missouri-Columbia
Other
Eligibility
18 Years to 80 Years
Enrollment
750 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2031
U.S. locations
1
States / cities
Columbia, Missouri
Source: ClinicalTrials.gov public record
Updated Sep 9, 2026 · Synced Sep 25, 2026, 4:58 PM EDT