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Showing 1–24 of 525 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: bariatric surgery Clear all
Completed No phase listed Observational

Assessment of Outcomes Following Bariatric Surgery for Mississippi State Employees

NCT01162668
View directory record Official record
Conditions
Obesity
Interventions
Not listed
Lead sponsor
University of Mississippi Medical Center
Other
Eligibility
18 Years and older
Enrollment
165 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2014
U.S. locations
4
States / cities
Jackson, Mississippi • Oxford, Mississippi • Pascagoula, Mississippi
Source: ClinicalTrials.gov public record
Updated May 14, 2018 · Synced Sep 2, 2026, 2:26 PM EDT
Withdrawn Phase 1 Interventional

Bariatric Surgery Telemedicine Study

NCT01378897
View directory record Official record
Conditions
Obesity
Interventions
MedSignals®pillbox,Omron pedometer,VitalSignals®weight scale
Device
Lead sponsor
Baystate Medical Center
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011
U.S. locations
1
States / cities
Springfield, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 10, 2016 · Synced Sep 2, 2026, 2:26 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Pilot Study on the Submental Area

NCT01859091
View directory record Official record
Conditions
Body Fat Disorder
Interventions
The Zeltiq System
Device
Lead sponsor
Zeltiq Aesthetics
Industry
Eligibility
18 Years to 65 Years
Enrollment
14 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
1
States / cities
Pleasanton, California
Source: ClinicalTrials.gov public record
Updated Aug 14, 2025 · Synced Sep 2, 2026, 2:26 PM EDT
Withdrawn Not applicable Interventional

Study to Assess Safety & Effects of Autologous ADSCs During Recovery Phase of ST-Elevation MI Effects of Autologous ADSC Implantation During Subacute Recovery Phase of ST-Elevation Myocardial Infarction

NCT03272191
View directory record Official record
Conditions
Subacute Myocardial Infarction
Interventions
Liposuction and stem cell implantation
Procedure
Lead sponsor
Ageless Regenerative Institute
Industry
Eligibility
18 Years to 80 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
Aventura, Florida
Source: ClinicalTrials.gov public record
Updated Sep 4, 2017 · Synced Sep 2, 2026, 2:26 PM EDT
Completed Phase 4 Interventional Results available

Nicotine Administration and Post-operative Opioid Use With Bariatric Surgery

NCT01194089
View directory record Official record
Conditions
Pain, Postoperative
Interventions
Nasal Nicotine Spray, Nasal Normal Saline Spray
Drug
Lead sponsor
Toby Weingarten
Other
Eligibility
18 Years to 60 Years · Female only
Enrollment
95 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2014
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jul 8, 2015 · Synced Sep 2, 2026, 2:26 PM EDT
Terminated No phase listed Observational

Study Evaluating Metabolic Syndrome in Subjects Undergoing Gastric Bypass Bariatric Syndrome

NCT00283374
View directory record Official record
Conditions
Morbid Obesity, Metabolic Disease
Interventions
Laparoscopic Roux-en-Y Gastric Bypass
Procedure
Lead sponsor
Wyeth is now a wholly owned subsidiary of Pfizer
Industry
Eligibility
18 Years to 55 Years
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2005
U.S. locations
10
States / cities
Irvine, California • Orange, California • Atlanta, Georgia + 6 more
Source: ClinicalTrials.gov public record
Updated May 17, 2006 · Synced Sep 2, 2026, 2:26 PM EDT
Completed Phase 1 Interventional

Effect of Ghrelin on Glucose Metabolism After Bariatric Surgery

NCT02953587
View directory record Official record
Conditions
Obesity
Interventions
Oral Glucose Tolerance Test (OGTT), Human Ghrelin, Saline
Procedure · Drug
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
21 Years to 65 Years
Enrollment
70 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2023
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Feb 7, 2023 · Synced Sep 2, 2026, 2:26 PM EDT
Completed Not applicable Interventional

Changing Health and Lifestyle Behaviors of Offspring Following Maternal Bariatric Surgery

NCT05350267
View directory record Official record
Conditions
Obesity, Childhood
Interventions
HALO, Enhanced Standard of Care
Behavioral
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
6 Years and older · Female only
Enrollment
35 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Nov 13, 2025 · Synced Sep 2, 2026, 2:26 PM EDT
Active, not recruiting Not applicable Interventional

Postoperative VR for Recovery After Bariatric Surgery

NCT04754165
View directory record Official record
Conditions
Bariatric Surgery Candidate, Postoperative Pain, Postoperative Complications
Interventions
Virtual Reality Immersive Relaxation
Other
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
18 Years and older
Enrollment
66 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 7, 2026 · Synced Sep 2, 2026, 2:26 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Skeletal Health in Bariatric Surgery Patients

NCT03331536
View directory record Official record
Conditions
Bariatric Surgery, Osteoporosis, Fractures, Bone, Roux En-Y Gastric Bypass, Sleeve Gastrectomy, Menopause, Premenopause
Interventions
Roux en Y Gastric Bypass Pre-menopausal, Roux en Y Gastric Bypass Post-menopausal, Sleeve Gastrectomy Pre-menopausal, Sleeve Gastrectomy Post-menopausal
Procedure
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
19 Years and older · Female only
Enrollment
27 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Aug 17, 2020 · Synced Sep 2, 2026, 2:26 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Technical Validation of MR Biomarkers of Obesity-Associated NAFLD

NCT03674528
View directory record Official record
Conditions
Non-Alcoholic Fatty Liver Disease, Non-alcoholic Steatohepatitis
Interventions
Magnetic Resonance Elastography (MRE), Liver biopsy
Other · Diagnostic Test
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years and older
Enrollment
152 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2024
U.S. locations
2
States / cities
La Jolla, California • Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Sep 18, 2024 · Synced Sep 2, 2026, 2:26 PM EDT
Not listed Not applicable Interventional

The S.L.I.M.M.S. Procedure for Severe Clinical Obesity

NCT04592601
View directory record Official record
Conditions
Morbid Obesity, Metabolic Syndrome, Type2 Diabetes, Insulin Resistance
Interventions
S.L.I.M.M.S. Procedure
Procedure
Lead sponsor
The N.E.W. Program
Other
Eligibility
18 Years to 65 Years
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
2
States / cities
Newport Beach, California • Tustin, California
Source: ClinicalTrials.gov public record
Updated Oct 18, 2020 · Synced Sep 2, 2026, 2:26 PM EDT
Completed Not applicable Interventional

Treatment of Low Metabolic Rate Following Bariatric Surgery

NCT01596907
View directory record Official record
Conditions
Morbid Obesity
Interventions
Ephedrine sulfate with caffeine, cellulose
Drug
Lead sponsor
Oregon Weight Loss Surgery, LLC
Other
Eligibility
18 Years to 70 Years
Enrollment
218 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
2
States / cities
Beaverton, Oregon • Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Sep 23, 2015 · Synced Sep 2, 2026, 2:26 PM EDT
Completed Not applicable Interventional

Bariatric Surgery And Adipose Inflammation Dysfunction and Type 2 Diabetes Mellitus

NCT01882036
View directory record Official record
Conditions
Type 2 Diabetes Mellitus, Insulin Resistance
Interventions
Gastric Bypass w/ matched hypocaloric diet, Hypocaloric diet
Procedure · Other
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 70 Years
Enrollment
57 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2018
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Feb 13, 2023 · Synced Sep 2, 2026, 2:26 PM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

The Contribution of Incretin Hormones to Post-prandial Glucose Metabolism After Roux-en-Y Gastric Bypass

NCT01843881
View directory record Official record
Conditions
Type 2 Diabetes Mellitus
Interventions
Exendin 9, 39, Placebo
Drug
Lead sponsor
Adrian Vella
Other
Eligibility
20 Years to 70 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Dec 3, 2013 · Synced Sep 2, 2026, 2:26 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Post Bariatric Closed Loop Glucagon Trial

NCT02966275
View directory record Official record
Conditions
Hypoglycemia
Interventions
Glucagon-only bionic pancreas - glucagon, Glucagon-only bionic pancreas - placebo
Device
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
21 Years and older
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 12, 2018 · Synced Sep 2, 2026, 2:26 PM EDT
Withdrawn Phase 2 Interventional

Mechanisms Underlying Predictors of Success From Obesity Surgery

NCT02697253
View directory record Official record
Conditions
Obesity
Interventions
Exendin 9-39 and Sitagliptin, Placebo
Drug
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
18 Years to 65 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2021
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Nov 14, 2022 · Synced Sep 2, 2026, 2:26 PM EDT
Recruiting No phase listed Observational

Metabolic Responses to Bariatric Surgery

NCT02024542
View directory record Official record
Conditions
Morbid Obesity
Interventions
Surgery
Other
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years to 55 Years
Enrollment
500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2035
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated May 17, 2026 · Synced Sep 2, 2026, 2:26 PM EDT
Completed Phase 1 Interventional Results available

Transversus Abdominis Plane (TAP) Block Using Liposomal Bupivacaine in Metabolic and Bariatric Surgery Patients

NCT05537883
View directory record Official record
Conditions
Morbid Obesity, Bariatric Surgery Candidate
Interventions
Liposomal bupivacaine, Bupivacaine Injection
Drug
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
18 Years and older
Enrollment
72 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 10, 2025 · Synced Sep 2, 2026, 2:26 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Prevention of Postoperative Nausea and Vomiting After Bariatric Surgery

NCT04644445
View directory record Official record
Conditions
Bariatric Surgery Candidate, Postoperative Nausea and Vomiting, Morbid Obesity
Interventions
Bariatric Full Liquid Diet
Dietary Supplement
Lead sponsor
Thomas Jefferson University
Other
Eligibility
18 Years and older
Enrollment
112 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
2
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Dec 8, 2020 · Synced Sep 2, 2026, 2:26 PM EDT
Withdrawn Phase 2Phase 3 Interventional

Laparoscopic Transversus Abdominis Plane (TAP) Block to Reduce Post-operative Opioids

NCT04655339
View directory record Official record
Conditions
Opioid Use
Interventions
Bilateral abdominal Lap-TAP
Drug
Lead sponsor
Baylor Research Institute
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Feb 11, 2026 · Synced Sep 2, 2026, 2:26 PM EDT
Completed Phase 4 Interventional Results available

Comparative Effectiveness of Intubating Devices in the Morbidly Obese

NCT01114945
View directory record Official record
Conditions
Obesity
Interventions
McGrath, GlideScope, Direct Macintosh Laryngoscopy, Video-Mac
Device
Lead sponsor
Cedars-Sinai Medical Center
Other
Eligibility
18 Years to 80 Years
Enrollment
121 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Apr 5, 2016 · Synced Sep 2, 2026, 2:26 PM EDT
Terminated Not applicable Interventional

Bariatric Surgery for ESRD Patients vs Control

NCT00580762
View directory record Official record
Conditions
Obesity, ESRD
Interventions
Roux-en-y gastric bypass (RYGB)
Procedure
Lead sponsor
Yale University
Other
Eligibility
18 Years to 65 Years
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2011
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Sep 6, 2016 · Synced Sep 2, 2026, 2:26 PM EDT
Recruiting No phase listed Observational

Body Composition Outcomes in MS Patients

NCT07530718
View directory record Official record
Conditions
Obesity
Interventions
Not listed
Lead sponsor
Pennington Biomedical Research Center
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
2
States / cities
Baton Rouge, Louisiana
Source: ClinicalTrials.gov public record
Updated Jun 16, 2026 · Synced Sep 2, 2026, 2:26 PM EDT