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ClinicalTrials.gov public records Last synced Sep 30, 2026, 5:42 PM EDT

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

Showing 25–48 of 233 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Surgical gastrojejunostomy Clear all
Recruiting Not applicable Interventional

Effect of Limb Length Ratio on Roux-en-Y Gastric Bypass Outcomes (CLIMB II Study)

NCT06293703
View directory record Official record
Conditions
Morbid Obesity
Interventions
Surgery
Procedure
Lead sponsor
Salvador Navarrete
Other
Eligibility
18 Years to 70 Years
Enrollment
262 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2030
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Mar 20, 2026 · Synced Sep 30, 2026, 5:42 PM EDT
Terminated Phase 1 Interventional Results available

Orthostatic Intolerance After Bariatric Surgery

NCT03808740
View directory record Official record
Conditions
Orthostatic Intolerance
Interventions
Atomoxetine, Placebo
Drug
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years to 60 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Sep 27, 2024 · Synced Sep 30, 2026, 5:42 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 Sep 30, 2026, 5:42 PM EDT
Completed Phase 2 Interventional

An Open-Label Study of XOMA 358 in Patients With Hypoglycemia After Gastric Bypass Surgery

NCT02772718
View directory record Official record
Conditions
Hypoglycemia
Interventions
XOMA 358 single dose level A, XOMA 358 single dose level B, XOMA 358 single dose level C, XOMA 358 multiple dose level 1
Drug
Lead sponsor
XOMA (US) LLC
Industry
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2021
U.S. locations
5
States / cities
Aurora, Colorado • Chicago, Illinois • Baltimore, Maryland + 2 more
Source: ClinicalTrials.gov public record
Updated May 21, 2021 · Synced Sep 30, 2026, 5:42 PM EDT
Completed No phase listed Observational

Mechanisms of Diabetes Control After Weight Loss Surgery

NCT00571220
View directory record Official record
Conditions
Gastric Bypass Surgery, Obesity
Interventions
gastric bypass surgery, Diet induced weight loss
Procedure · Other
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
21 Years to 60 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2010
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Mar 9, 2018 · Synced Sep 30, 2026, 5:42 PM EDT
Completed Phase 4 Interventional Results available

Pramlintide (Symlin) for the Treatment of Hypoglycemia Following Gastric Bypass Surgery

NCT01841359
View directory record Official record
Conditions
Hypoglycemia, Evidence of Previous Gastric Surgery
Interventions
Pramlintide
Drug
Lead sponsor
Joslin Diabetes Center
Other
Eligibility
21 Years to 65 Years
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2022
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 29, 2023 · Synced Sep 30, 2026, 5:42 PM EDT
Recruiting Phase 4 Interventional Accepts healthy volunteers

Fibrosis Lessens After Metabolic Surgery

NCT06374875
View directory record Official record
Conditions
Metabolic Dysfunction-associated Steatotic Liver Disease (MASLD), Non-Alcoholic Fatty Liver Disease, Metabolic Dysfunction-Associated Steatohepatitis (MASH), Liver Fibrosis, Obesity
Interventions
Metabolic surgery, Incretin-Based Therapy
Procedure · Drug
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years to 75 Years
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2029
U.S. locations
4
States / cities
Phoenix, Arizona • Indianapolis, Indiana • Rochester, Minnesota + 1 more
Source: ClinicalTrials.gov public record
Updated Jul 31, 2026 · Synced Sep 30, 2026, 5:42 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 Sep 30, 2026, 5:42 PM EDT
Not listed No phase listed Observational Accepts healthy volunteers

Fat Taste Sensory Study

NCT03540693
View directory record Official record
Conditions
Bariatric Surgery Candidate, Bariatric Surgical Procedure
Interventions
RYGB, SG, LAGB
Procedure
Lead sponsor
University of Illinois at Urbana-Champaign
Other
Eligibility
18 Years to 64 Years
Enrollment
105 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2023
U.S. locations
1
States / cities
Urbana, Illinois
Source: ClinicalTrials.gov public record
Updated Apr 28, 2021 · Synced Sep 30, 2026, 5:42 PM EDT
Completed Not applicable Interventional Results available

IV Lidocaine on Postoperative Pain and QOR on Morbid Obese Patients Undergoing Bypass Surgery

NCT01180660
View directory record Official record
Conditions
Pain, Obesity
Interventions
Lidocaine Infusion, Normal Saline
Drug
Lead sponsor
Northwestern University
Other
Eligibility
18 Years to 70 Years
Enrollment
51 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Aug 7, 2014 · Synced Sep 30, 2026, 5:42 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 Sep 30, 2026, 5:42 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 24, 2015 · Synced Sep 30, 2026, 5:42 PM EDT
Completed No phase listed Observational

Laparoscopic Revision From Biliopancreatic Diversion to Gastric Bypass

NCT01041456
View directory record Official record
Conditions
Metabolic and Nutritional Complications, Protein Malnutrition, Intestinal Malabsorptive Syndrome, Metabolic Bone Disease
Interventions
Not listed
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years to 65 Years
Enrollment
10 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 Sep 30, 2026, 5:42 PM 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 Sep 30, 2026, 5:42 PM EDT
Recruiting Phase 4 Interventional

OPEN Versus InTact Capsule Proton Pump Inhibitors for the Treatment of Marginal Ulcers

NCT05799105
View directory record Official record
Conditions
Marginal Ulcer
Interventions
Omeprazole 40 milligrams
Drug
Lead sponsor
Stephen Firkins
Other
Eligibility
Not listed
Enrollment
122 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Mar 19, 2026 · Synced Sep 30, 2026, 5:42 PM EDT
Available No phase listed Expanded access

An Expanded Access Protocol to Provide Avexitide in Patients With Post-Bariatric Hypoglycemia

NCT07582874
View directory record Official record
Conditions
Post-bariatric Hypoglycemia
Interventions
Avexitide
Drug
Lead sponsor
Amylyx Pharmaceuticals Inc.
Industry
Eligibility
18 Years and older
U.S. locations
4
States / cities
Boston, Massachusetts • Morehead City, North Carolina • Mesquite, Texas + 1 more
Source: ClinicalTrials.gov public record
Updated Jul 14, 2026 · Synced Sep 30, 2026, 5:42 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Prospective Study of Hormone Levels After Bariatric Surgery

NCT00627315
View directory record Official record
Conditions
Obesity
Interventions
Gastric bypass, Gastric banding
Procedure
Lead sponsor
Columbia University
Other
Eligibility
18 Years and older
Enrollment
236 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2018
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Sep 19, 2019 · Synced Sep 30, 2026, 5:42 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 19, 2021 · Synced Sep 30, 2026, 5:42 PM EDT
Completed Early Phase 1 Interventional

Safety, Tolerability, and Pharmacodynamics of SYNB8802v1 in Subjects With History of Gastric Bypass Surgery or Short-bowel Syndrome

NCT05377112
View directory record Official record
Conditions
Enteric Hyperoxaluria
Interventions
SYNB8802v1, Placebo
Drug · Other
Lead sponsor
Synlogic
Industry
Eligibility
18 Years to 74 Years
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Mar 17, 2023 · Synced Sep 30, 2026, 5:42 PM EDT
Completed Not applicable Interventional

Determinants of Fat Malabsorption After Roux-en-Y Gastric Bypass

NCT01252511
View directory record Official record
Conditions
Severe Obesity
Interventions
RYGB for surgical treatment of severe obesity
Procedure
Lead sponsor
Baylor Research Institute
Other
Eligibility
18 Years to 65 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2017
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated May 17, 2019 · Synced Sep 30, 2026, 5:42 PM EDT
Terminated Not applicable Interventional

Early Intervention for Morbidly Obese Patients After Roux-en-Y Gastric Bypass (RYGB) Surgery

NCT01329692
View directory record Official record
Conditions
Weight Loss, Obesity
Interventions
Lifestyle counseling
Behavioral
Lead sponsor
Duke University
Other
Eligibility
18 Years and older
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Feb 8, 2012 · Synced Sep 30, 2026, 5:42 PM EDT
Completed No phase listed Observational

Laparoscopy-assisted ERCP in Patients With Altered Gastric Anatome

NCT01620632
View directory record Official record
Conditions
Biliary Disease, Pancreas Disease
Interventions
Laparoscopy assisted ERCP
Procedure
Lead sponsor
University of Florida
Other
Eligibility
18 Years and older
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2018
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Jul 9, 2018 · Synced Sep 30, 2026, 5:42 PM EDT
Completed No phase listed Observational

Endotoxin and Intestinal Flora Before and After Gastric Bypass or Banding in Diabetics

NCT00960765
View directory record Official record
Conditions
Obesity, Morbid, Diabetes Mellitus, Type 2, Gastric Bypass
Interventions
Not listed
Lead sponsor
CPL Associates
Other
Eligibility
18 Years to 95 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2015
U.S. locations
2
States / cities
Buffalo, New York • Williamsville, New York
Source: ClinicalTrials.gov public record
Updated Jan 28, 2016 · Synced Sep 30, 2026, 5:42 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Cerebrospinal Fluid Biomarkers in Bariatric Surgery

NCT04350892
View directory record Official record
Conditions
Obesity
Interventions
Roux-en-Y Gastric Bypass (RYGB), Sleeve Gastrectomy (SG), Very Low Calorie Diet (VLCD)
Procedure · Behavioral
Lead sponsor
Columbia University
Other
Eligibility
18 Years to 65 Years
Enrollment
51 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2025
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jan 28, 2026 · Synced Sep 30, 2026, 5:42 PM EDT