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ClinicalTrials.gov public records Last synced Oct 24, 2026, 5:06 AM EDT

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

Showing 1–24 of 87 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Bariatric Surgery Candidate Clear all
Completed No phase listed Observational

Retrospective Comparison of Lap and Robotic-Assisted RYGB and SG

NCT04329780
View directory record Official record
Conditions
Bariatric Surgery Candidate
Interventions
Not listed
Lead sponsor
Intuitive Surgical
Industry
Eligibility
18 Years and older
Enrollment
1,872 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2024
U.S. locations
1
States / cities
Orlando, Florida
Source: ClinicalTrials.gov public record
Updated Apr 13, 2025 · Synced Oct 24, 2026, 5:06 AM EDT
Active, not recruiting Not applicable Interventional

Postoperative VR for Recovery After Bariatric Surgery

NCT04754165
View directory record Official record
Conditions
Bariatric Surgery Candidate, Postoperative Pain, Postoperative Complications
Interventions
Virtual Reality Immersive Relaxation
Other
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
18 Years and older
Enrollment
66 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 8, 2026 · Synced Oct 24, 2026, 5:06 AM EDT
Not listed No phase listed Observational

Mucosal Impedance Sleeve Gastrectomy

NCT04166461
View directory record Official record
Conditions
Gastroesophageal Reflux, Bariatric Surgery Candidate
Interventions
Not application, observational study
Other
Lead sponsor
MetroHealth Medical Center
Other
Eligibility
18 Years to 80 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 20, 2024 · Synced Oct 24, 2026, 5:06 AM EDT
Withdrawn Phase 4 Interventional

Changes in Oral Contraceptive Hormones After Gastric Bypass Surgery

NCT01941134
View directory record Official record
Conditions
Bariatric Surgery Candidate, Contraception
Interventions
ethinyl estradiol-levonorgestrel
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 40 Years · Female only
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2017
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 21, 2018 · Synced Oct 24, 2026, 5:06 AM EDT
Recruiting No phase listed Observational

Endoscopic Bariatric Therapies (EBTs): A Retrospective and Prospective Multicenter Registry

NCT04494048
View directory record Official record
Conditions
Obesity, Weight Loss, Gastro Esophageal Reflux, Bariatric Surgery Candidate
Interventions
Endoscopic Bariatric Therapies
Other
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years to 89 Years
Enrollment
9,999 participants
Timeline
2016 – 2035
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 23, 2026 · Synced Oct 24, 2026, 5:06 AM EDT
Enrolling by invitation No phase listed Observational

Physiologic and Functional Adaptations of Insulin Sensitive Tissues

NCT03407833
View directory record Official record
Conditions
Diabetes, Insulin Resistance, Obesity, Bariatric Surgery Candidate, Roux-en-y Gastric Bypass, Liver Diseases
Interventions
Endoscopy biopsy, Surgical biopsy, Mixed-meal tolerance test, Excised Liver Tissue Sampling
Other
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years and older
Enrollment
500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2028
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Dec 18, 2025 · Synced Oct 24, 2026, 5:06 AM 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 24, 2026, 5:06 AM EDT
Completed Phase 4 Interventional

Multimodal Analgesia Effect on Post Surgical Patient

NCT04240626
View directory record Official record
Conditions
Obesity, Morbid, Surgery, Bariatric Surgery Candidate
Interventions
Neurontin, Dilaudid Injectable Product, Marcaine Injectable Product, Oxycodone Hydrochloride, Hycet 7.5Mg-325Mg/15Ml Solution, Zofran Injection, Scopolamine patch, Ativan, Flexeril Oral Product, Tylenol Suspension
Drug
Lead sponsor
University of California, Davis
Other
Eligibility
35 Years to 65 Years · Female only
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated Sep 14, 2026 · Synced Oct 24, 2026, 5:06 AM EDT
Completed No phase listed Observational Results available

Cardiovascular Outcomes in Bariatric Surgery Patients With Type 2 Diabetes

NCT03955952
View directory record Official record
Conditions
Obesity, Type2 Diabetes, Bariatric Surgery Candidate
Interventions
Bariatric Surgery
Procedure
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years to 80 Years
Enrollment
91,700 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Aug 3, 2026 · Synced Oct 24, 2026, 5:06 AM EDT
Withdrawn Not applicable Interventional

Exercise Training Study Before Bariatric Surgery

NCT06274606
View directory record Official record
Conditions
Bariatric Surgery Candidate
Interventions
Exercise Group
Other
Lead sponsor
University of Virginia
Other
Eligibility
18 Years to 50 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated Jun 14, 2024 · Synced Oct 24, 2026, 5:06 AM EDT
Not yet recruiting Not applicable Interventional

Xpan Non-Inferiority Study

NCT07385690
View directory record Official record
Conditions
Bariatric Surgery Candidate
Interventions
Xpan Trocar System, Standard of Care (Non-expanding Trocar)
Device
Lead sponsor
West Virginia University
Other
Eligibility
18 Years to 89 Years
Enrollment
35 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Morgantown, West Virginia
Source: ClinicalTrials.gov public record
Updated Feb 4, 2026 · Synced Oct 24, 2026, 5:06 AM EDT
Completed No phase listed Observational

De Novo Lipogenesis in Severity of NAFLD

NCT03683589
View directory record Official record
Conditions
Nonalcoholic Fatty Liver Disease, Nonalcoholic Steatohepatitis, Bariatric Surgery Candidate, Obesity, Morbid
Interventions
Not listed
Lead sponsor
University of Missouri-Columbia
Other
Eligibility
22 Years to 65 Years
Enrollment
49 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
1
States / cities
Columbia, Missouri
Source: ClinicalTrials.gov public record
Updated Dec 19, 2024 · Synced Oct 24, 2026, 5:06 AM EDT
Recruiting No phase listed Observational

Gut Microbiota in Metabolic Surgery

NCT05000996
View directory record Official record
Conditions
Bariatric Surgery Candidate, Cardiovascular Diseases, Type 2 Diabetes, Dyslipidemias, Hypertension, Morbid Obesity
Interventions
Bariatric Surgery
Procedure
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
21 Years to 65 Years
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2035
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Nov 4, 2025 · Synced Oct 24, 2026, 5:06 AM EDT
Completed Phase 1 Interventional Results available

Transversus Abdominis Plane (TAP) Block Using Liposomal Bupivacaine in Metabolic and Bariatric Surgery Patients

NCT05537883
View directory record Official record
Conditions
Morbid Obesity, Bariatric Surgery Candidate
Interventions
Liposomal bupivacaine, Bupivacaine Injection
Drug
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
18 Years and older
Enrollment
72 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 11, 2025 · Synced Oct 24, 2026, 5:06 AM EDT
Not listed No phase listed Observational

ViSiGi LUX Bariatric Sizing and Calibration System

NCT06282094
View directory record Official record
Conditions
Bariatric Surgery Candidate
Interventions
Not listed
Lead sponsor
Boehringer Labs LLC
Industry
Eligibility
18 Years to 99 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024
U.S. locations
1
States / cities
York, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 13, 2024 · Synced Oct 24, 2026, 5:06 AM EDT
Terminated No phase listed Observational

Validation of Circulating Endothelial Cells and Microparticles in Youth

NCT01508598
View directory record Official record
Conditions
Childhood Obesity, Bariatric Surgery Candidate
Interventions
Not listed
Lead sponsor
University of Minnesota
Other
Eligibility
8 Years to 17 Years
Enrollment
390 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2018
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Aug 24, 2020 · Synced Oct 24, 2026, 5:06 AM EDT
Completed Not applicable Interventional

Aromatherapy in Management of Postoperative Nausea in Post-Bariatric Surgery Patients

NCT03130218
View directory record Official record
Conditions
Bariatric Surgery Candidate, Nausea, Postoperative
Interventions
Peppermint oil aromatherapy
Other
Lead sponsor
Lancaster General Hospital
Other
Eligibility
18 Years to 70 Years
Enrollment
204 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Lancaster, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 19, 2020 · Synced Oct 24, 2026, 5:06 AM EDT
Completed Not applicable Interventional

Reducing Alcohol Use Post-Bariatric Surgery

NCT04788316
View directory record Official record
Conditions
Bariatric Surgery Candidate, Alcohol Drinking
Interventions
CBI and Text messaging
Behavioral
Lead sponsor
Henry Ford Health System
Other
Eligibility
Not listed
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
Detroit, Michigan
Source: ClinicalTrials.gov public record
Updated May 16, 2025 · Synced Oct 24, 2026, 5:06 AM EDT
Completed No phase listed Observational

Prospective Robotic-assisted Revisional Bariatric Study

NCT04506190
View directory record Official record
Conditions
Bariatric Surgery Candidate
Interventions
Revisional bariatric surgery
Procedure
Lead sponsor
Intuitive Surgical
Industry
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2024
U.S. locations
1
States / cities
Orlando, Florida
Source: ClinicalTrials.gov public record
Updated Apr 13, 2025 · Synced Oct 24, 2026, 5:06 AM EDT
Completed No phase listed Observational

Comparative Analysis of da Vinci-Assisted and Laparoscopic Duodenal Switch Bariatric Surgical Procedures

NCT05575947
View directory record Official record
Conditions
Bariatric Surgery Candidate
Interventions
da Vinci Surgical System, laparoscopic bariatric surgery
Device · Procedure
Lead sponsor
Intuitive Surgical
Industry
Eligibility
18 Years and older
Enrollment
1,878 participants
Timeline
2022
U.S. locations
1
States / cities
Sunnyvale, California
Source: ClinicalTrials.gov public record
Updated Sep 29, 2023 · Synced Oct 24, 2026, 5:06 AM EDT
Completed No phase listed Observational

Impact of Plasma Soluble Prorenin Receptor in Obese and Type 2 Diabetic Patients

NCT03643783
View directory record Official record
Conditions
Obesity, Type2 Diabetes, Bariatric Surgery Candidate
Interventions
Not listed
Lead sponsor
Tulane University
Other
Eligibility
18 Years to 70 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
New Orleans, Louisiana
Source: ClinicalTrials.gov public record
Updated Mar 1, 2021 · Synced Oct 24, 2026, 5:06 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 25, 2020 · Synced Oct 24, 2026, 5:06 AM EDT
Completed Not applicable Interventional

Probiotic Supplementation on Weight Loss

NCT03832439
View directory record Official record
Conditions
Bariatric Surgery Candidate
Interventions
Probiotic, microcrystalline cellulose
Dietary Supplement
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 65 Years
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Feb 21, 2022 · Synced Oct 24, 2026, 5:06 AM EDT
Completed Not applicable Interventional

Improvement of Insulin Resistance After Bariatric Surgery

NCT03853590
View directory record Official record
Conditions
Obesity, Bariatric Surgery Candidate, Insulin Tolerance
Interventions
Roux-en-Y gastric bypass, Laparoscopic adjustable gastric banding
Procedure
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
18 Years to 65 Years
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2015
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 25, 2019 · Synced Oct 24, 2026, 5:06 AM EDT