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ClinicalTrials.gov public records Last synced Oct 6, 2026, 10:32 AM EDT

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Showing 73–96 of 105 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: laparoscopic bariatric surgery Clear all
Completed Not applicable Interventional Results available

Laparoscopic Gastric Bypass vs LAP-BAND for Treatment of Morbid Obesity

NCT00247377
View directory record Official record
Conditions
Morbid Obesity
Interventions
Gastric bypass surgery, Lap-Band
Procedure
Lead sponsor
University of California, Irvine
Other
Eligibility
18 Years to 60 Years
Enrollment
197 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2009
U.S. locations
1
States / cities
Orange, California
Source: ClinicalTrials.gov public record
Updated Apr 24, 2023 · Synced Oct 6, 2026, 10:32 AM EDT
Active, not recruiting No phase listed Observational

Comparison of Body Composition Changes With Weight Loss Interventions

NCT07115069
View directory record Official record
Conditions
Obesity
Interventions
GLP-1 receptor agonist, Gastric Bypass Surgery (laparoscopic), Gastric Bypass Surgery (robotic)
Drug · Procedure
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
21 Years to 65 Years
Enrollment
60 participants
Timeline
2025 – 2027
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jul 14, 2026 · Synced Oct 6, 2026, 10:32 AM EDT
Completed No phase listed Observational

Perforated Marginal Ulcer After Gastric Bypass

NCT01041196
View directory record Official record
Conditions
Ulcer Disease After Gastric Bypass, Marginal Ulcer, Perforated Marginal Ulcer, Acutely Perforated Marginal Ulcer
Interventions
Not listed
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years to 65 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009
U.S. locations
1
States / cities
Fresno, California
Source: ClinicalTrials.gov public record
Updated Jan 1, 2010 · Synced Oct 6, 2026, 10:32 AM EDT
Completed Phase 4 Interventional Results available

Bupivacaine Liposomal Injection (Exparel) for Postsurgical Analgesia in Patient Undergoing Laparoscopic Bariatric Surgery

NCT02969187
View directory record Official record
Conditions
Pain, Postoperative
Interventions
Exparel, Bupivacain, Saline
Drug
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years to 65 Years
Enrollment
126 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Mar 3, 2020 · Synced Oct 6, 2026, 10:32 AM EDT
Active, not recruiting No phase listed Observational

Transoral Fundoplication Prior to Sleeve Gastrectomy Versus RNY Gastric Bypass on GERD Symptoms in Bariatric Patients

NCT05365087
View directory record Official record
Conditions
Gastroesophageal Reflux Disease
Interventions
Transoral Fundoplication and Sleeve Gastrectomy, Gastric Bypass
Procedure
Lead sponsor
Lexington Health Incorporated
Other
Eligibility
18 Years and older
Enrollment
180 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2032
U.S. locations
1
States / cities
West Columbia, South Carolina
Source: ClinicalTrials.gov public record
Updated May 8, 2025 · Synced Oct 6, 2026, 10:32 AM EDT
Completed No phase listed Observational

Does the Presence of Preoperative Proteinuria Predict Postoperative Acute Kidney Injury in Obese Patients Undergoing Elective Laparoscopic Surgery?

NCT02798042
View directory record Official record
Conditions
Acute Kidney Injury, Obesity, Proteinuria
Interventions
Urine Sample
Other
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years to 80 Years
Enrollment
1,434 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2023
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 26, 2024 · Synced Oct 6, 2026, 10:32 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

The Effect of Liposomal Bupivacaine on Post Operative Pain and Narcotic Use After Bariatric Surgery

NCT03196505
View directory record Official record
Conditions
Bariatric Surgery Candidate, Pain, Postoperative
Interventions
Exparel 266 MG Per 20 ML Injection, Bupivacaine
Drug
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years to 65 Years
Enrollment
231 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
Fresno, California
Source: ClinicalTrials.gov public record
Updated Nov 25, 2020 · Synced Oct 6, 2026, 10:32 AM EDT
Terminated Not applicable Interventional

Sleeve Gastrectomy Versus Medical Management for Remission of Diabetes in Mild to Moderately Obese Patients

NCT00965302
View directory record Official record
Conditions
Diabetes Mellitus, Type 2, Obesity
Interventions
Laparoscopic sleeve gastrectomy, Intensive medical management
Procedure · Behavioral
Lead sponsor
59th Medical Wing
Federal
Eligibility
18 Years to 65 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2014
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Apr 25, 2023 · Synced Oct 6, 2026, 10:32 AM EDT
Completed No phase listed Observational

Adding Malabsorption for Failed Gastric Bypass

NCT01040481
View directory record Official record
Conditions
Clinically Severe Obesity, Obesity Recidivism, Inadequate Initial Weight Loss, Poor Weight Loss, Persistent Obesity, Refractory Obesity, Intractable Obesity
Interventions
Not listed
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years to 65 Years
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009
U.S. locations
1
States / cities
Fresno, California
Source: ClinicalTrials.gov public record
Updated Dec 29, 2009 · Synced Oct 6, 2026, 10:32 AM EDT
Recruiting Phase 4 Interventional

Optimizing Portal Hypertension With TIPS and Interval Metabolic Surgery for Advanced Liver Disease

NCT07058155
View directory record Official record
Conditions
Liver Cirrhoses, Portal Hypertension Related to Cirrhosis, Severe Obesity, TIPS
Interventions
Transjugular Intrahepatic Portosystemic Shunt (TIPS), Sleeve Gastrectomy, Anti-Obesity Pharmacotherapy (Class Effect), Lifestyle Counseling - Diet & Physical-Activity Program
Procedure · Drug · Behavioral
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years to 70 Years
Enrollment
70 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2034
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Dec 23, 2025 · Synced Oct 6, 2026, 10:32 AM EDT
Withdrawn Phase 4 Interventional

Bariatric Dose-ranging Study With Dexmedetomidine

NCT00363935
View directory record Official record
Conditions
Abdominal Surgery Patients
Interventions
Dexmedetomidine
Drug
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
18 Years to 70 Years
Timeline
2007
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Jan 16, 2019 · Synced Oct 6, 2026, 10:32 AM EDT
Terminated Not applicable Interventional Results available

Multicenter Prospective Randomized Controlled Trial of Plicated Laparoscopic Adjustable Gastric Banding

NCT01564732
View directory record Official record
Conditions
Morbid Obesity
Interventions
Standard-LAGB, Plicated-LAGB
Device
Lead sponsor
Dana Portenier, MD
Other
Eligibility
18 Years to 60 Years
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 1, 2016 · Synced Oct 6, 2026, 10:32 AM EDT
Not listed Not applicable Interventional

Roux-en-Y-Gastric Bypass vs. Lifestyle Modification and Medical Therapy in the Treatment of Type 2 Diabetes

NCT01231308
View directory record Official record
Conditions
Type 2 Diabetes
Interventions
Roux-en-Y-Gastric Bypass, Intensive lifestyle modification and Optimal medical Therapy
Procedure · Behavioral
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
21 Years to 65 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2014
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Dec 24, 2012 · Synced Oct 6, 2026, 10:32 AM EDT
Not listed No phase listed Observational Accepts healthy volunteers

A Retrospective Multicenter Comparison of Laparoscopic and Robotic-Assisted Roux-en-Y Gastrectomy

NCT05224791
View directory record Official record
Conditions
Laparoscopic Sleeve Gastrectomy, Sleeve Gastrectomy
Interventions
Roux-en-Y Gastric Bypass, Sleeve Gastrectomy
Procedure
Lead sponsor
Methodist Health System
Other
Eligibility
18 Years and older
Enrollment
400 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2025
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Mar 28, 2024 · Synced Oct 6, 2026, 10:32 AM EDT
Terminated Not applicable Interventional

Psychology of Minimally Invasive Surgical Scars

NCT03004560
View directory record Official record
Conditions
Obesity
Interventions
Standard Laparoscopic Approach, Percutaneous Approach
Procedure
Lead sponsor
Duke University
Other
Eligibility
18 Years and older
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 10, 2020 · Synced Oct 6, 2026, 10:32 AM EDT
Completed Not applicable Interventional

Laparoscopic Gastric Plication Operation for Patients With Severe or Morbid Obesity

NCT01207609
View directory record Official record
Conditions
Morbid Obesity
Interventions
Laparoscopic Gastric Plication
Procedure
Lead sponsor
Ponce, Jaime, M.D.
Individual
Eligibility
18 Years to 60 Years
Enrollment
35 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2016
U.S. locations
2
States / cities
Dalton, Georgia • Chattanooga, Tennessee
Source: ClinicalTrials.gov public record
Updated Feb 2, 2016 · Synced Oct 6, 2026, 10:32 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Effects of Assisted Robotic vs Laparoscopic Sleeve Gastrectomy

NCT06425016
View directory record Official record
Conditions
Post Operative Pain, Laparoscopic Sleeve Gastrectomy, Robotic Sleeve Gastrectomy, Obesity, Bariatric Surgery Candidate, Quality of Life
Interventions
Laparoscopic Sleeve Gastrectomy (LSG), Robotic Sleeve Gastrectomy (RSG)
Procedure
Lead sponsor
Ricard Corcelles
Other
Eligibility
18 Years to 70 Years
Enrollment
91 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2027
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Dec 10, 2025 · Synced Oct 6, 2026, 10:32 AM EDT
Completed Not applicable Interventional Results available

Surgery or Lifestyle With Intensive Medical Management in the Treatment of Type 2 Diabetes

NCT01073020
View directory record Official record
Conditions
Type 2 Diabetes Mellitus, Obesity
Interventions
Allergan Adjustable Gastric Band Surgery, Intensive Medical Diabetes & Weight Management (Why WAIT) - Band Group, Roux-en-Y Gastric Bypass (RYGB) Surgery, Intensive Medical Diabetes & Weight Management (Why WAIT) - Bypass Group
Device · Other · Procedure
Lead sponsor
Joslin Diabetes Center
Other
Eligibility
21 Years to 65 Years
Enrollment
88 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2016
U.S. locations
2
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 28, 2021 · Synced Oct 6, 2026, 10:32 AM EDT
Not listed Not applicable Interventional

Resolution of Comorbidities, Safety and Efficacy of Greater Curvature Plication in Obese Patients.

NCT01512940
View directory record Official record
Conditions
Obesity
Interventions
Laparoscopic Greater Curvature Plication
Procedure
Lead sponsor
Singh, Kuldeep, M.D., P.A.
Individual
Eligibility
18 Years to 65 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 13, 2012 · Synced Oct 6, 2026, 10:32 AM EDT
Completed No phase listed Observational

Modes of Ventilation During Laparoscopic Bariatric Surgery

NCT01890564
View directory record Official record
Conditions
Bariatric Surgery
Interventions
Pressure controlled ventilation, Volume controlled ventilation, PRVC ventilation
Other
Lead sponsor
Joseph D. Tobias
Other
Eligibility
14 Years to 20 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Apr 1, 2014 · Synced Oct 6, 2026, 10:32 AM EDT
Completed No phase listed Observational

Laparoscopic Revision of Vertical Banded Gastroplasty to Gastric Bypass

NCT01041131
View directory record Official record
Conditions
Clinically Severe Obesity, Inadequate Weight Loss, Obesity Recidivism
Interventions
Not listed
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years to 65 Years
Enrollment
70 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009
U.S. locations
1
States / cities
Fresno, California
Source: ClinicalTrials.gov public record
Updated Jan 1, 2010 · Synced Oct 6, 2026, 10:32 AM 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 11, 2025 · Synced Oct 6, 2026, 10:32 AM EDT
Active, not recruiting Not applicable Interventional

Hepatic Energy Fluxes in NASH and NAS Patients

NCT03997422
View directory record Official record
Conditions
NASH - Nonalcoholic Steatohepatitis, NAS, Overweight or Obesity, Weight Loss, Bariatric Surgery Candidate
Interventions
Vertical Sleeve Gastrectomy (VSG)
Procedure
Lead sponsor
University of Minnesota
Other
Eligibility
40 Years to 67 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2030
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Jun 4, 2026 · Synced Oct 6, 2026, 10:32 AM EDT
Completed Not applicable Interventional Results available

LAGB as a Treatment for Morbid Obesity in Adolescents

NCT01045499
View directory record Official record
Conditions
Morbid Obesity, Obstructive Sleep Apnea Syndrome, Metabolic Syndrome, Insulin Resistance, Nonalcoholic Fatty Liver Disease
Interventions
Laparoscopic adjustable gastric banding (Allergan Lap Band)
Device
Lead sponsor
Jeffrey L Zitsman, MD
Other
Eligibility
13 Years to 19 Years
Enrollment
137 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2017
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 13, 2020 · Synced Oct 6, 2026, 10:32 AM EDT