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ClinicalTrials.gov public records Last synced Oct 12, 2026, 10:36 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 73–87 of 87 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Laparoscopic Roux-en-Y gastric bypass Clear all
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 7, 2016 · Synced Oct 12, 2026, 10:36 PM EDT
Terminated Not applicable Interventional

Effects of a Novel Dietary Intervention on Body Composition After Laparoscopic Gastric Bypass Surgery

NCT01041261
View directory record Official record
Conditions
Obesity, Morbid Obesity
Interventions
BariatrX Essentials 360 Treatment
Dietary Supplement
Lead sponsor
MetaProteomics LLC
Industry
Eligibility
25 Years and older · Female only
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 13, 2012 · Synced Oct 12, 2026, 10:36 PM EDT
Completed No phase listed Observational

Bone Loss After Laparoscopic Roux-en-Y Gastric Bypass

NCT00975013
View directory record Official record
Conditions
Bone Loss, Bone Density, Gastric Bypass, Bariatric Surgery
Interventions
Not listed
Lead sponsor
Gundersen Lutheran Medical Foundation
Other
Eligibility
30 Years to 65 Years · Female only
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
1
States / cities
La Crosse, Wisconsin
Source: ClinicalTrials.gov public record
Updated Sep 7, 2015 · Synced Oct 12, 2026, 10:36 PM 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 12, 2026, 10:36 PM EDT
Completed Not applicable Interventional Results available

Advanced Medical Therapy Versus Advanced Medical Therapy Plus Bariatric Surgery for the Resolution of Type 2 Diabetes

NCT00432809
View directory record Official record
Conditions
Diabetes Mellitus, Type 2, Obesity
Interventions
Gastric bypass, Sleeve Gastrectomy
Procedure
Lead sponsor
The Cleveland Clinic
Other
Eligibility
20 Years to 60 Years
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2016
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Aug 23, 2017 · Synced Oct 12, 2026, 10:36 PM EDT
Completed Not applicable Interventional Results available

Reinforcement of Surgical Staple Lines Using Peri-Strips Dry (PSD) With Veritas Collagen Matrix

NCT00566943
View directory record Official record
Conditions
Obesity
Interventions
PSD Veritas Collagen Matrix, Roux-en-Y gastric by-pass surgery with no buttress
Device · Procedure
Lead sponsor
Baxter Healthcare Corporation
Industry
Eligibility
18 Years and older
Enrollment
101 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
1
States / cities
Columbia, Missouri
Source: ClinicalTrials.gov public record
Updated May 19, 2017 · Synced Oct 12, 2026, 10:36 PM EDT
Terminated Not applicable Interventional

Total Joint Arthroplasty (TJA) Weight Loss Study

NCT05156762
View directory record Official record
Conditions
Osteoarthritis, Hip, Osteoarthritis, Knee, Obesity, Morbid
Interventions
Bariatric surgery, Medical weight loss, Patient research surveys, Total joint arthroplasty (TJA), Usual standard of care
Procedure · Behavioral · Other
Lead sponsor
Boston Medical Center
Other
Eligibility
18 Years and older
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 14, 2025 · Synced Oct 12, 2026, 10:36 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 12, 2026, 10:36 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 Jan 1, 2010 · Synced Oct 12, 2026, 10:36 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 12, 2026, 10:36 PM EDT
Withdrawn No phase listed Observational

Effect of Lap-Band Induced Weight Loss on Serum PSA Levels

NCT00562341
View directory record Official record
Conditions
Obesity, Prostate Cancer
Interventions
Bariatric Surgery
Other
Lead sponsor
Maimonides Medical Center
Other
Eligibility
20 Years to 60 Years · Male only
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
1
States / cities
Brooklyn, New York
Source: ClinicalTrials.gov public record
Updated Aug 23, 2018 · Synced Oct 12, 2026, 10:36 PM EDT
Terminated No phase listed Observational

Obesity and Memory, mRNA, Body Composition, Comorbidity Scale

NCT00531505
View directory record Official record
Conditions
Obesity, Memory Deficits
Interventions
Not listed
Lead sponsor
Oregon Health and Science University
Other
Eligibility
18 Years and older
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Oct 16, 2015 · Synced Oct 12, 2026, 10:36 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Nutritional Effect of an Amino Acid Mixture on Lean Body Mass (LBM) in Post-bariatric Surgery Patients

NCT00473356
View directory record Official record
Conditions
Obesity, Post-gastric Bypass
Interventions
receive amino acid supplement
Dietary Supplement
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2010
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Nov 19, 2013 · Synced Oct 12, 2026, 10:36 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 12, 2026, 10:36 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Transoral Endoscopic Liver Biopsy During Laparoscopic Gastric Bypass

NCT00512512
View directory record Official record
Conditions
Steatohepatitis, Morbid Obesity
Interventions
Transoral Endoscopic Liver Biopsy
Procedure
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years and older
Enrollment
4 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2009
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 1, 2010 · Synced Oct 12, 2026, 10:36 PM EDT