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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Bariatric Sleeve Gastrectomy Clear all
Terminated No phase listed Observational Accepts healthy volunteers

Mechanism of Weight Loss After Endoscopic and Laparoscopic Sleeve Procedures

NCT04006002
View directory record Official record
Conditions
Weight Loss, Reflux
Interventions
Metabolic and Hormonal profile
Other
Lead sponsor
Northwell Health
Other
Eligibility
18 Years to 75 Years
Enrollment
4 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2022
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Feb 13, 2022 · Synced Jul 23, 2026, 10:12 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Skeletal Health in Bariatric Surgery Patients

NCT03331536
View directory record Official record
Conditions
Bariatric Surgery, Osteoporosis, Fractures, Bone, Roux En-Y Gastric Bypass, Sleeve Gastrectomy, Menopause, Premenopause
Interventions
Roux en Y Gastric Bypass Pre-menopausal, Roux en Y Gastric Bypass Post-menopausal, Sleeve Gastrectomy Pre-menopausal, Sleeve Gastrectomy Post-menopausal
Procedure
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
19 Years and older · Female only
Enrollment
27 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Aug 17, 2020 · Synced Jul 23, 2026, 10:12 AM EDT
Not listed Not applicable Interventional

The S.L.I.M.M.S. Procedure for Severe Clinical Obesity

NCT04592601
View directory record Official record
Conditions
Morbid Obesity, Metabolic Syndrome, Type2 Diabetes, Insulin Resistance
Interventions
S.L.I.M.M.S. Procedure
Procedure
Lead sponsor
The N.E.W. Program
Other
Eligibility
18 Years to 65 Years
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
2
States / cities
Newport Beach, California • Tustin, California
Source: ClinicalTrials.gov public record
Updated Oct 18, 2020 · Synced Jul 23, 2026, 10:12 AM EDT
Not yet recruiting Phase 4 Interventional Accepts healthy volunteers

Metabolic Surgery for Atrial Fibrillation Elimination

NCT07027969
View directory record Official record
Conditions
Atrial Fibrillation, Obesity and Obesity-related Medical Conditions
Interventions
Roux-en-Y Gastric Bypass or Sleeve Gastrectomy, Anti-Obesity Medication (AOM) treatment
Procedure · Drug
Lead sponsor
Ali Aminian
Other
Eligibility
18 Years to 80 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2030
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Apr 16, 2026 · Synced Jul 23, 2026, 10:12 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 24, 2020 · Synced Jul 23, 2026, 10:12 AM EDT
Active, not recruiting 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 – 2030
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Mar 13, 2025 · Synced Jul 23, 2026, 10:12 AM EDT
Completed Not applicable Interventional

Iron Supplement to Improve Iron Status Following Bariatric Surgery

NCT02404012
View directory record Official record
Conditions
Anemia, Iron Deficiency
Interventions
Oral iron supplementation
Dietary Supplement
Lead sponsor
Indiana University
Other
Eligibility
18 Years to 65 Years · Female only
Enrollment
64 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2021
U.S. locations
1
States / cities
West Lafayette, Indiana
Source: ClinicalTrials.gov public record
Updated Aug 4, 2022 · Synced Jul 23, 2026, 10:12 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 3, 2026 · Synced Jul 23, 2026, 10:12 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Prevention of Postoperative Nausea and Vomiting After Bariatric Surgery

NCT04644445
View directory record Official record
Conditions
Bariatric Surgery Candidate, Postoperative Nausea and Vomiting, Morbid Obesity
Interventions
Bariatric Full Liquid Diet
Dietary Supplement
Lead sponsor
Thomas Jefferson University
Other
Eligibility
18 Years and older
Enrollment
112 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
2
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Dec 8, 2020 · Synced Jul 23, 2026, 10:12 AM EDT
Completed No phase listed Observational

Comparative Effectiveness of Bariatric Surgery Versus Medical Management to Induce Diabetes Remission in Diabetic Patients With BMI 30-35

NCT01423877
View directory record Official record
Conditions
Diabetes
Interventions
Not listed
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years to 80 Years
Enrollment
55 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Mar 31, 2014 · Synced Jul 23, 2026, 10:12 AM EDT
Active, not recruiting No phase listed Observational

Long Term Outcomes of Bariatric Patients Treated With Surgery or Endoscopy

NCT03705416
View directory record Official record
Conditions
GERD, Obesity
Interventions
Endoscopy, Surgery
Procedure
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 75 Years
Enrollment
250 participants
Timeline
2019 – 2028
U.S. locations
6
States / cities
Baltimore, Maryland • New Hyde Park, New York • New York, New York + 3 more
Source: ClinicalTrials.gov public record
Updated Jun 16, 2026 · Synced Jul 23, 2026, 10:12 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Venlafaxine PK Following Bariatric Surgery

NCT02005107
View directory record Official record
Conditions
Roux en Y Gastric Bypass, Sleeve Gastrectomy
Interventions
Venlafaxine IR and Venlafaxine XR
Drug
Lead sponsor
North Dakota State University
Other
Eligibility
18 Years to 65 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2015
U.S. locations
1
States / cities
Fargo, North Dakota
Source: ClinicalTrials.gov public record
Updated Apr 5, 2016 · Synced Jul 23, 2026, 10:12 AM EDT
Completed No phase listed Observational

Post-Market Clinical Follow-Up of STRATAFIX™ Spiral PDS™ PLUS

NCT03937011
View directory record Official record
Conditions
Bariatric - Sleeve Gastrectomy Staple Line Reinforcement, Gynecology - Vaginal Cuff Closure
Interventions
Robotic Suturing of gastric sleeve oversew and vaginal cuff closure
Device
Lead sponsor
Ethicon, Inc.
Industry
Eligibility
18 Years and older
Enrollment
161 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
4
States / cities
Miami, Florida • Albany, New York • New York, New York
Source: ClinicalTrials.gov public record
Updated Feb 16, 2026 · Synced Jul 23, 2026, 10:12 AM EDT
Active, not recruiting No phase listed Observational

Biological Sample Repository for Gastrointestinal Disorders

NCT05874726
View directory record Official record
Conditions
Obesity, Obesity, Morbid, Obesity, Primary, Gastro-Intestinal Disorder, Overweight and Obesity, Overweight, Overweight or Obesity, Diabetes Type 2, Diabetes Mellitus, Diabetes Mellitus, Type 2, Hypertension, Hyperlipidemias, Sleep Apnea, GERD, Gastroesophageal Reflux, Musculoskeletal Pain Disorder, Cancer
Interventions
Blood Collection, Urine Collection, Tissue Sample Collection
Diagnostic Test
Lead sponsor
Pichamol Jirapinyo, MD, MPH
Other
Eligibility
18 Years and older
Enrollment
500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2029
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 1, 2025 · Synced Jul 23, 2026, 10:12 AM EDT
Completed Phase 3 Interventional

Laparoscopic Adjustable Gastric Banding Versus Laparoscopic Sleeve Gastrectomy

NCT00434655
View directory record Official record
Conditions
Morbid Obesity
Interventions
Laparoscopic restrictive procedure
Procedure
Lead sponsor
North Texas Veterans Healthcare System
Federal
Eligibility
18 Years to 65 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Dec 14, 2009 · Synced Jul 23, 2026, 10:12 AM EDT
Completed Phase 2 Interventional Results available

Liraglutide (Saxenda(R)) in Adolescents With Obesity After Sleeve Gastrectomy

NCT04883346
View directory record Official record
Conditions
Obesity, Status Post Sleeve Gastrectomy
Interventions
Liraglutide
Drug
Lead sponsor
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
NIH
Eligibility
12 Years to 20 Years
Enrollment
34 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Nov 19, 2024 · Synced Jul 23, 2026, 10:12 AM EDT
Withdrawn No phase listed Observational

Potential Benefits of Sleeve Gastrectomy Surgery on Diabetic Gastroparesis Symptoms

NCT03376399
View directory record Official record
Conditions
Weight Loss, Diabetic Gastroparesis, Bariatric Surgery Candidate, Sleeve Gastrectomy, Gastric Emptying
Interventions
Gastroparesis Cardinal Symptom Index Questionnaire
Other
Lead sponsor
Baylor Research Institute
Other
Eligibility
18 Years and older
Timeline
2017 – 2020
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Jul 1, 2020 · Synced Jul 23, 2026, 10:12 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 9, 2025 · Synced Jul 23, 2026, 10:12 AM EDT
Recruiting No phase listed Observational

Alcohol After Bariatric Surgery 2

NCT06257771
View directory record Official record
Conditions
Sleeve Gastrectomy
Interventions
Alcohol (Ethanol)
Drug
Lead sponsor
University of Illinois at Urbana-Champaign
Other
Eligibility
21 Years to 64 Years
Enrollment
88 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2028
U.S. locations
1
States / cities
Urbana, Illinois
Source: ClinicalTrials.gov public record
Updated Mar 10, 2025 · Synced Jul 23, 2026, 10:12 AM EDT
Withdrawn Phase 4 Interventional Accepts healthy volunteers

Laparoscopic Sleeve Gastrectomy Plus Weight Watchers vs. Weight Watchers Alone in Underserved Minority Women

NCT01929850
View directory record Official record
Conditions
Morbid Obesity
Interventions
Laparscopic Sleeve Gastrectomy, Weight Watchers Program
Procedure · Behavioral
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years to 65 Years · Female only
Healthy volunteers
Accepts healthy volunteers
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated May 7, 2015 · Synced Jul 23, 2026, 10:12 AM EDT
Active, not recruiting No phase listed Observational

Role of Dietary Habits in Efficacy of Bariatric Surgery - Study B

NCT03467906
View directory record Official record
Conditions
Bariatric Surgery, Sleeve Gastrectomy, Obesity
Interventions
In-laboratory assessment
Other
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
22 Years to 62 Years
Enrollment
44 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2028
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 3, 2025 · Synced Jul 23, 2026, 10:12 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 7, 2025 · Synced Jul 23, 2026, 10:12 AM 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 27, 2026 · Synced Jul 23, 2026, 10:12 AM EDT
Completed No phase listed Observational

Bone Metabolism After Bariatric Surgery

NCT01824797
View directory record Official record
Conditions
Obesity, Osteoporosis
Interventions
Not listed
Lead sponsor
Duke University
Other
Eligibility
40 Years and older · Female only
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2018
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 15, 2019 · Synced Jul 23, 2026, 10:12 AM EDT