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ClinicalTrials.gov public records Last synced Oct 20, 2026, 1:59 PM EDT

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Showing 1–24 of 162 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Sleeve gastrectomy Clear all
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Healthy Body, Healthy Bones After Bariatric Surgery Trial

NCT04279392
View directory record Official record
Conditions
Bariatric Surgery Candidate, Bone Loss, Bone Resorption
Interventions
Zoledronic Acid 5 mg/Bag 100 ml Inj, Placebos
Drug
Lead sponsor
University of Nebraska
Other
Eligibility
19 Years and older
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
1
States / cities
Omaha, Nebraska
Source: ClinicalTrials.gov public record
Updated Sep 24, 2024 · Synced Oct 20, 2026, 1:59 PM EDT
Completed Not applicable Interventional

Duodenal-Ileal Diversion in Obese Patients Undergoing Primary Sleeve or Those With Inadequate Weight Loss After Sleeve

NCT05064722
View directory record Official record
Conditions
Obesity, Morbid
Interventions
Self Forming Magnets (SFM)
Device
Lead sponsor
GI Windows, Inc.
Industry
Eligibility
22 Years to 65 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Oct 15, 2024 · Synced Oct 20, 2026, 1:59 PM EDT
Withdrawn Not applicable Interventional

Randomized Prospective Trial: Single Port Laparoscopic Vertical Sleeve Gastrectomy Versus Conventional Five Port Laparoscopic Vertical Sleeve Gastrectomy Surgery

NCT01401426
View directory record Official record
Conditions
Obesity, Nutrition Disorders, Body Weight
Interventions
Laparoscopic vertical sleeve gastrectomy
Procedure
Lead sponsor
St. Luke's-Roosevelt Hospital Center
Other
Eligibility
18 Years to 70 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 19, 2016 · Synced Oct 20, 2026, 1:59 PM EDT
Completed Phase 4 Interventional Results available

Pilot Study for Zoledronic Acid to Prevent Bone Loss After Bariatric Surgery

NCT03424239
View directory record Official record
Conditions
Bariatric Surgery Candidate
Interventions
Zoledronic Acid, Calcium citrate + vitamin D, Vitamin D3
Drug · Dietary Supplement
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
25 Years to 100 Years
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 29, 2021 · Synced Oct 20, 2026, 1:59 PM EDT
Recruiting Not applicable Interventional

Autonomic Neural Blockade in Bariatric Surgery

NCT07104825
View directory record Official record
Conditions
Bariatric Surgery Candidate, Pain, Postoperative, Nausea and Vomiting, Postoperative, Opioid Use
Interventions
Intraoperative autonomic neural blockade (ANB), Laparoscopic Standard of Care Abdominal Wall Block
Procedure
Lead sponsor
Endeavor Health
Other
Eligibility
18 Years to 90 Years
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Evanston, Illinois
Source: ClinicalTrials.gov public record
Updated Jul 29, 2026 · Synced Oct 20, 2026, 1:59 PM EDT
Recruiting Phase 1 Interventional

Physiologic Response to Bariatric Surgery and the Impact of Adjunct Semaglutide in Adolescents

NCT06575738
View directory record Official record
Conditions
Obesity, Adolescent Obesity, Body-Weight Trajectory, Weight Loss Trajectory, Bariatric Surgery, Anti-obesity Agents
Interventions
Injectable semaglutide or injectable tirzepatide, Standard postoperative care
Drug · Behavioral
Lead sponsor
University of Colorado, Denver
Other
Eligibility
12 Years to 24 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Jul 15, 2026 · Synced Oct 20, 2026, 1:59 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 20, 2026, 1:59 PM EDT
Completed No phase listed Observational

Alliance of Randomized Trials of Medicine vs Metabolic Surgery in Type 2 Diabetes

NCT02328599
View directory record Official record
Conditions
Type 2 Diabetes Mellitus, Obesity
Interventions
Bariatric surgery involving Roux-en-Y gastric bypass, Bariatric surgery involving Laparoscopic adjustable gastric banding, Bariatric surgery involving Laparoscopic sleeve gastrectomy
Procedure
Lead sponsor
Ali Aminian
Other
Eligibility
20 Years to 65 Years
Enrollment
262 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2024
U.S. locations
4
States / cities
Boston, Massachusetts • Cleveland, Ohio • Pittsburgh, Pennsylvania + 1 more
Source: ClinicalTrials.gov public record
Updated Mar 31, 2026 · Synced Oct 20, 2026, 1:59 PM EDT
Completed No phase listed Observational

Underlying Mechanisms of Obesity-induced Obstructive Sleep Apnea

NCT04793334
View directory record Official record
Conditions
Obstructive Sleep Apnea, Obesity
Interventions
sleeve gastectomy
Procedure
Lead sponsor
Brandon Nokes
Other
Eligibility
18 Years to 65 Years
Enrollment
106 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Feb 27, 2026 · Synced Oct 20, 2026, 1:59 PM EDT
Terminated Phase 4 Interventional Accepts healthy volunteers Results available

A Study to Compare Neostigmine vs Sugammadex in Length of PACU Stay in Patients Undergoing Sleeve Gastrectomy Surgery

NCT03276026
View directory record Official record
Conditions
Postoperative Nausea and Vomiting, Respiratory Conditions Due to Other External Agents
Interventions
Sugammadex, Neostigmine
Drug
Lead sponsor
Virtua Health, Inc.
Other
Eligibility
18 Years to 85 Years
Enrollment
68 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
1
States / cities
Mount Holly, New Jersey
Source: ClinicalTrials.gov public record
Updated May 28, 2019 · Synced Oct 20, 2026, 1:59 PM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Glucose Uptake in Metabolic Tissues After Bariatric Surgery

NCT03563885
View directory record Official record
Conditions
Obesity, Insulin Resistance
Interventions
bariatric surgery
Procedure
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years to 65 Years · Female only
Enrollment
1 participant
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Jan 28, 2020 · Synced Oct 20, 2026, 1:59 PM EDT
Completed No phase listed Observational

A Study of ECHELON 3000 (Next Generation Powered Stapler) in General Abdominal and Thoracic Lung Resection Procedures

NCT05519215
View directory record Official record
Conditions
Laparoscopic Sleeve Gastrectomy (LSG), Thoracic Lung Resection Procedure
Interventions
ECHELON 3000 Stapler
Device
Lead sponsor
Ethicon Endo-Surgery
Industry
Eligibility
Not listed
Enrollment
244 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
8
States / cities
Los Angeles, California • Washington D.C., District of Columbia • Atlanta, Georgia + 5 more
Source: ClinicalTrials.gov public record
Updated Jan 12, 2026 · Synced Oct 20, 2026, 1:59 PM EDT
Withdrawn No phase listed Observational

Omega-3 Fatty Acid Status in Morbid Obesity Before and After Surgical Treatment

NCT00558532
View directory record Official record
Conditions
Morbid Obesity, Cardiovascular Disease, Fatty Acid Levels
Interventions
Bariatric Surgery
Procedure
Lead sponsor
University of Cincinnati
Other
Eligibility
Not listed
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Jun 13, 2016 · Synced Oct 20, 2026, 1:59 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Multicenter Endoscopic Sleeve Gastrectomy (ESG) Trial (MERIT Trial)

NCT03406975
View directory record Official record
Conditions
Obesity, Hypertension, Diabetes Mellitus, Type 2
Interventions
Overstitch Endoscopic Suture System, Lifestyle Intervention
Device · Behavioral
Lead sponsor
Mayo Clinic
Other
Eligibility
21 Years to 65 Years
Enrollment
208 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2021
U.S. locations
9
States / cities
Orlando, Florida • Chicago, Illinois • Evanston, Illinois + 6 more
Source: ClinicalTrials.gov public record
Updated Oct 18, 2022 · Synced Oct 20, 2026, 1:59 PM EDT
Terminated Not applicable Interventional Results available

Management of Reflux After Sleeve Using Stretta

NCT02637713
View directory record Official record
Conditions
GERD, Morbid Obesity
Interventions
Stretta, Radiofrequency (RF) Energy to the LES (Stretta Procedure)
Device · Procedure
Lead sponsor
Montefiore Medical Center
Other
Eligibility
18 Years to 80 Years
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
13
States / cities
Los Angeles, California • Stanford, California • Norwalk, Connecticut + 8 more
Source: ClinicalTrials.gov public record
Updated Jan 23, 2024 · Synced Oct 20, 2026, 1:59 PM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

Endostapler Hemostasis Study

NCT04149925
View directory record Official record
Conditions
Intraoperative Staple Line Bleeding as Measured by the Provided Bleeding Severity Scale
Interventions
AEON Endostapler, Echelon Flex Powered Stapler
Device
Lead sponsor
Lexington Medical Inc.
Industry
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
3
States / cities
Covington, Louisiana • Metairie, Louisiana • Slidell, Louisiana
Source: ClinicalTrials.gov public record
Updated Feb 23, 2021 · Synced Oct 20, 2026, 1:59 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Metabolism and Bariatric Surgery Study

NCT03371368
View directory record Official record
Conditions
Insulin Resistance, Obesity
Interventions
Roux-en-Y Gastric Bypass (RYGBP), Sleeve Gastrectomy (SG), Very Low Calorie Diet (VLCD)
Procedure · Behavioral
Lead sponsor
Columbia University
Other
Eligibility
18 Years to 65 Years
Enrollment
70 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2023
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 7, 2025 · Synced Oct 20, 2026, 1:59 PM EDT
Recruiting Not applicable Interventional

Stanford Program to Accelerate Robotic Children's Surgery

NCT06671639
View directory record Official record
Conditions
Sleeve Gastrectomy, Cholecystectomy, Splenectomy, Hysterectomy, Endometriosis, Ureteral Re-implant, Cervical and Thoracic Tracheoplasty, Thymectomy, Lobectomy/Wedge Lung Resection, Lung Segmentectomy, Bronchoplasty, Endoscopic Laryngeal/Pharyngeal Suturing, Vocal Feminization, Laryngeal Cleft Repair, Endolaryngeal Adjacent Tissue Transfer, Pharyngoplasty, Ileocolonic Resections, Laryngoplasty, Proctectomy With Ileal Pouch-Anal Anastomosis
Interventions
da Vinci Xi Robotic Surgery System
Device
Lead sponsor
Stanford University
Other
Eligibility
6 Years to 21 Years
Enrollment
250 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Apr 30, 2026 · Synced Oct 20, 2026, 1:59 PM EDT
Recruiting Not applicable Interventional

Transition to Ambulatory Bariatric Surgery (TABS) Trial

NCT07011628
View directory record Official record
Conditions
Obesity and Obesity-related Medical Conditions, Bariatric Surgery
Interventions
Same Day Discharge
Other
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
25 Years to 55 Years
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Sep 21, 2026 · Synced Oct 20, 2026, 1:59 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

fMRI and Appetite-Related Hormones Pre and Post Obesity Surgery

NCT01583725
View directory record Official record
Conditions
Obesity
Interventions
Liquid meal responses, fMRI responses to food-cues
Procedure · Behavioral
Lead sponsor
New York Obesity and Nutrition Research Center
Other
Eligibility
18 Years to 65 Years
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2015
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 27, 2024 · Synced Oct 20, 2026, 1:59 PM EDT
Completed No phase listed Observational

WeighT LOSS Surgery and Comprehensive Cardiometabolic Responses to to EXercise

NCT06576050
View directory record Official record
Conditions
Heart Failure, Obesity, Weight Loss, Heart Failure With Preserved Ejection Fraction
Interventions
Not listed
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
40 Years and older
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 13, 2026 · Synced Oct 20, 2026, 1:59 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 20, 2026, 1:59 PM EDT
Recruiting Phase 3 Interventional

Trial of IV vs Oral Iron Treatment of Iron Deficiency Anemia in the Post-Operative Bariatric Surgical Patient

NCT04268849
View directory record Official record
Conditions
Iron Deficiency Anemia
Interventions
Ferumoxytol, Saline, Ferrous sulfate tablets, Vitamin C
Drug
Lead sponsor
Auerbach Hematology Oncology Associates P C
Other
Eligibility
18 Years and older
Enrollment
104 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 3, 2025 · Synced Oct 20, 2026, 1:59 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Single Anastomosis Duodenal Ileal Bypass (SADI) for Sleeve Revision

NCT04165694
View directory record Official record
Conditions
Bariatric Surgery Candidate, Severe Obesity
Interventions
Single Anastomosis Duodenal Ileal Bypass (SADI)
Procedure
Lead sponsor
Kaiser Permanente
Other
Eligibility
18 Years to 100 Years
Enrollment
54 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2025
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Aug 6, 2026 · Synced Oct 20, 2026, 1:59 PM EDT