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ClinicalTrials.gov public records Last synced Oct 5, 2026, 11:52 PM EDT

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Showing 49–72 of 91 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Laparoscopic Gastric Bypass Clear all
Completed No phase listed Observational

Laparoscopic Revision Gastric Bypass for Weight Recidivism

NCT01040572
View directory record Official record
Conditions
Weight Regain, Weight Recidivism, Obesity Recidivism, Clinically Severe Obesity
Interventions
Not listed
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years to 65 Years
Enrollment
132 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 5, 2026, 11:52 PM EDT
Completed Phase 4 Interventional Results available

Efficacy of Exparel (TM) on Post-operative Pain After Laparoscopic Gastric Bypass Using Circular EEA Stapler

NCT03187379
View directory record Official record
Conditions
Post-operative Pain Management
Interventions
Exparel, Bupivacaine
Drug
Lead sponsor
Matthew Kroh
Other
Eligibility
18 Years and older
Enrollment
102 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2021
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Jun 21, 2022 · Synced Oct 5, 2026, 11:52 PM EDT
Completed No phase listed Observational

Very Long Term Results After Laparoscopic Retrocolic Antegastric Gastric Bypass

NCT01040507
View directory record Official record
Conditions
Clinically Severe Obesity
Interventions
Not listed
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years to 65 Years
Enrollment
242 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 5, 2026, 11:52 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Efficacy Study to Evaluate Laparoscopic Fascial Closure Device

NCT01024296
View directory record Official record
Conditions
Hernia, Abdominal
Interventions
Port Close
Device
Lead sponsor
Stanford University
Other
Eligibility
18 Years to 65 Years
Enrollment
4 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Oct 12, 2017 · Synced Oct 5, 2026, 11:52 PM EDT
Completed Not applicable Interventional

Randomized Trial Comparing Laparoscopic Roux-en-y Gastric Bypass to Micro-laparoscopic Roux-en-y Gastric Bypass

NCT01183273
View directory record Official record
Conditions
Obesity
Interventions
Microlaparoscopic gastric bypass, Laparoscopic Surgery
Procedure
Lead sponsor
Suzanne J. Rose
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2014
U.S. locations
1
States / cities
Danbury, Connecticut
Source: ClinicalTrials.gov public record
Updated Aug 22, 2014 · Synced Oct 5, 2026, 11:52 PM EDT
Completed No phase listed Observational

Simplified Technique for Performing Laparoscopic Gastric Bypass

NCT06782256
View directory record Official record
Conditions
Gastric Bypass, Morbid Obesity
Interventions
Not listed
Lead sponsor
Madigan Army Medical Center
Federal
Eligibility
18 Years and older
Enrollment
140 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
1
States / cities
Tacoma, Washington
Source: ClinicalTrials.gov public record
Updated Jan 17, 2025 · Synced Oct 5, 2026, 11:52 PM EDT
Enrolling by invitation Not applicable Interventional Accepts healthy volunteers

Outcome Analysis of POEM and Endoluminal Therapies

NCT03123835
View directory record Official record
Conditions
Achalasia, Gastric Fistula, Weight Gain After Primary Weight Loss Surgery, Marginal Ulcer, Stenoses, Gastric Nec
Interventions
Endoscopic Intervention
Procedure
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years to 80 Years
Enrollment
500 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2031
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated Dec 5, 2025 · Synced Oct 5, 2026, 11:52 PM EDT
Completed Not applicable Interventional

Evaluation of the Ability to Detect Bowel Gas During Laparoscopic Surgery

NCT02679118
View directory record Official record
Conditions
Intestinal Perforation
Interventions
Sentire
Device
Lead sponsor
Dan E. Azagury
Other
Eligibility
18 Years and older
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Aug 18, 2017 · Synced Oct 5, 2026, 11:52 PM EDT
Completed No phase listed Observational Results available

Taste Perception Pre and Post Bariatric Surgery

NCT01536197
View directory record Official record
Conditions
Morbid Obesity
Interventions
Gastric bypass, Gastric banding, Sleeve gastrectomy
Procedure
Lead sponsor
Washington University School of Medicine
Other
Eligibility
20 Years to 70 Years
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2013
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Dec 18, 2017 · Synced Oct 5, 2026, 11:52 PM EDT
Completed Not applicable Interventional Results available

The Effect of Pre-Operative Transversus Abdominis Plane (TAP) Block in the Post Operative Opioid Consumption in Morbid Obese Patients Undergoing Laparoscopic Gastric Bypass Surgery: A Prospective,Randomized, Blinded Study

NCT01075087
View directory record Official record
Conditions
Pain, Obesity, Surgery
Interventions
Placebo, (study group) will receive a bilateral TAP block using 20 cc of 0.5% ropivacaine on each side.
Drug
Lead sponsor
Northwestern University
Other
Eligibility
18 Years to 65 Years
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jun 26, 2014 · Synced Oct 5, 2026, 11:52 PM EDT
Completed Phase 1 Interventional

To Define the Role of GLP-1 for Improving Glucose Homeostasis in Humans Following Gastric Bypass Surgery

NCT02204813
View directory record Official record
Conditions
Bypass, Gastric, Roux-en-Y Gastric Bypass, Vertical Sleeve Gastrectomy, Gastric Banding, Bariatric Surgery
Interventions
Placebo, Lo-Xenin, Hi-Xenin, Extra Hi-Xenin
Drug
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years to 65 Years
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Apr 27, 2018 · Synced Oct 5, 2026, 11:52 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 11, 2025 · Synced Oct 5, 2026, 11:52 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Changes in Body Composition Following Bariatric Surgery

NCT02148068
View directory record Official record
Conditions
Obesity
Interventions
Bariatric Surgery
Procedure
Lead sponsor
Peter Nau
Other
Eligibility
18 Years to 65 Years
Enrollment
136 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2018
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Nov 20, 2018 · Synced Oct 5, 2026, 11:52 PM EDT
Completed Phase 3 Interventional

Surgery Or Lifestyle Intervention for Type 2 Diabetes (SOLID)

NCT01040468
View directory record Official record
Conditions
Type 2 Diabetes
Interventions
Roux-en-Y Gastric Bypass surgery, Laparoscopic Adjustable Gastric Banding surgery, Intensive Lifestyle Modification
Procedure · Behavioral
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 65 Years
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2015
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 19, 2016 · Synced Oct 5, 2026, 11:52 PM EDT
Completed No phase listed Observational

Bariatric Surgery and Weight Loss on Energy Metabolism and Insulin Sensitivity

NCT00936130
View directory record Official record
Conditions
Obesity, Protein-energy; Imbalance, Insulin Sensitivity, Gastrointestinal Complication
Interventions
Laparoscopic Roux-en-Y gastric bypass, Laparoscopic gastric banding, Laparoscopic sleeve gastrectomy, Low Calorie Diet
Procedure · Behavioral
Lead sponsor
Pennington Biomedical Research Center
Other
Eligibility
18 Years to 65 Years
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2014
U.S. locations
1
States / cities
Baton Rouge, Louisiana
Source: ClinicalTrials.gov public record
Updated Dec 4, 2015 · Synced Oct 5, 2026, 11:52 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 22, 2025 · Synced Oct 5, 2026, 11:52 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

Adipose Secretory Function in Patients Before & After Laparoscopic Surgery

NCT00495599
View directory record Official record
Conditions
Obesity
Interventions
Cytokines assessed from fat tissue
Procedure
Lead sponsor
Vanderbilt University
Other
Eligibility
18 Years to 65 Years
Enrollment
107 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2009
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Nov 21, 2016 · Synced Oct 5, 2026, 11:52 PM EDT
Completed No phase listed Observational

Laparoscopic Revision of Jejunoileal Bypass to Gastric Bypass

NCT01040533
View directory record Official record
Conditions
Clinically Severe Obesity, Metabolic Complications After Jejunoileal Bypass, Nutritional Complications After Jejunoileal Bypass, Obesity Recidivism, Inadequate Initial Weight Loss, Intestinal Malabsorptive Syndrome, Protein Malnutrition
Interventions
Not listed
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years to 65 Years
Enrollment
4 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 29, 2009 · Synced Oct 5, 2026, 11:52 PM EDT
Completed Not applicable Interventional Results available

Hepatic Effects of Gastric Bypass Surgery

NCT00701376
View directory record Official record
Conditions
Liver Diseases
Interventions
liver biopsy
Other
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years and older
Enrollment
106 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2014
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Jun 19, 2020 · Synced Oct 5, 2026, 11:52 PM EDT
Not listed No phase listed Observational Accepts healthy volunteers

Effects of Alcohol After Bariatric Surgery

NCT01843257
View directory record Official record
Conditions
Obesity
Interventions
Alcohol challenge test Alcohol visit first, Alcohol challenge test Placebo visit first
Other
Lead sponsor
University of Illinois at Urbana-Champaign
Other
Eligibility
21 Years to 65 Years · Female only
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2021
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Apr 27, 2021 · Synced Oct 5, 2026, 11:52 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 18, 2006 · Synced Oct 5, 2026, 11:52 PM 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 5, 2026, 11:52 PM EDT
Completed No phase listed Observational

Internal Hernias After Laparoscopic Gastric Bypass

NCT01040364
View directory record Official record
Conditions
Internal Hernia, Mesocolic Hernia, Petersen´s Hernia, Jejunojejunostomy Hernia, Bowel Obstruction, Ischemic Bowel
Interventions
Not listed
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years to 65 Years
Enrollment
220 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009
U.S. locations
1
States / cities
Fresno, California
Source: ClinicalTrials.gov public record
Updated Sep 24, 2013 · Synced Oct 5, 2026, 11:52 PM EDT
Active, not recruiting Not applicable Interventional

Randomized Trial of EUS-guided Gastrojejunostomy and Surgical Gastrojejunostomy in Gastric Outlet Obstruction

NCT05548114
View directory record Official record
Conditions
Gastric Outlet Obstruction
Interventions
EUS-guided gastrojejunostomy, Surgical gastrojejunostomy
Procedure
Lead sponsor
Orlando Health, Inc.
Other
Eligibility
18 Years and older
Enrollment
74 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
1
States / cities
Orlando, Florida
Source: ClinicalTrials.gov public record
Updated Jun 12, 2025 · Synced Oct 5, 2026, 11:52 PM EDT