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ClinicalTrials.gov public records Last synced Sep 30, 2026, 8:07 PM EDT

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Showing 97–120 of 453 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Bariatric Surgical Procedure Clear all
Completed Not applicable Interventional

Progressive Resistance Training in Patients With Class III Obesity

NCT01100450
View directory record Official record
Conditions
Obesity
Interventions
Progressive Resistance Training
Behavioral
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
18 Years to 65 Years
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
2
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 24, 2017 · Synced Sep 30, 2026, 8:07 PM EDT
Completed Phase 2 Interventional Results available

Oral Acetaminophen for Post-Op Pain Management in Bariatric Surgery Patients

NCT06658574
View directory record Official record
Conditions
Post Operative Analgesia, Bariatric Surgery, Bariatric Surgery (Gastric Bypass), Bariatric Surgery Patients, Perioperative Analgesia
Interventions
Acetaminophen
Drug
Lead sponsor
Rutgers, The State University of New Jersey
Other
Eligibility
18 Years and older
Enrollment
65 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
New Brunswick, New Jersey
Source: ClinicalTrials.gov public record
Updated Aug 24, 2026 · Synced Sep 30, 2026, 8:07 PM EDT
Completed No phase listed Observational

Neural Response to Eating and Weight Status

NCT01228097
View directory record Official record
Conditions
Obesity
Interventions
Not listed
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older · Female only
Enrollment
75 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2015
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 10, 2015 · Synced Sep 30, 2026, 8:07 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Lifestyle Improvement for Teens With Bariatric Surgery

NCT05393570
View directory record Official record
Conditions
Obesity, Adolescent, Bariatric Surgery Candidate
Interventions
Healthy Lifestyle Behavioral Intervention (MBS -supported intervention)
Behavioral
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
12 Years to 18 Years
Enrollment
76 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Aug 3, 2025 · Synced Sep 30, 2026, 8:07 PM EDT
Recruiting Not applicable Interventional

Gut Microbiome and Sex as Risk Factors for Kidney Stones After Bariatric Surgery

NCT04590690
View directory record Official record
Conditions
Bariatric Surgery Candidate
Interventions
Special diet
Other
Lead sponsor
University of Chicago
Other
Eligibility
18 Years to 130 Years
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2027
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated May 11, 2026 · Synced Sep 30, 2026, 8:07 PM EDT
Completed Phase 4 Interventional Results available

Nicotine Administration and Post-operative Opioid Use With Bariatric Surgery

NCT01194089
View directory record Official record
Conditions
Pain, Postoperative
Interventions
Nasal Nicotine Spray, Nasal Normal Saline Spray
Drug
Lead sponsor
Toby Weingarten
Other
Eligibility
18 Years to 60 Years · Female only
Enrollment
95 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2014
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jul 9, 2015 · Synced Sep 30, 2026, 8:07 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Study of Menstrual Irregularities and Endometrial Pathology in Women Undergoing Bariatric Surgery

NCT01473186
View directory record Official record
Conditions
Morbid Obesity, Endometrial Pathology, Menstrual Irregularities
Interventions
Not listed
Lead sponsor
University of Virginia
Other
Eligibility
18 Years to 75 Years · Female only
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2015
U.S. locations
1
States / cities
Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated Jun 2, 2015 · Synced Sep 30, 2026, 8:07 PM EDT
Completed Phase 1 Interventional

Evaluation of Single Ascending Doses of Subcutaneous Exendin 9-39 in Patients With Post-Bariatric Hypoglycemia

NCT02996812
View directory record Official record
Conditions
Hyperinsulinemia Hypoglycemia
Interventions
Exendin (9-39)
Drug
Lead sponsor
Tracey McLaughlin
Other
Eligibility
18 Years to 65 Years
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Dec 4, 2024 · Synced Sep 30, 2026, 8:07 PM EDT
Completed No phase listed Observational

Autonomic Nervous System Function Following Bariatric Surgery

NCT00948545
View directory record Official record
Conditions
Bariatric Surgery
Interventions
Observational study - there is no intervention
Other
Lead sponsor
Christiana Care Health Services
Other
Eligibility
18 Years to 60 Years
Enrollment
37 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
1
States / cities
Newark, Delaware
Source: ClinicalTrials.gov public record
Updated Nov 7, 2012 · Synced Sep 30, 2026, 8:07 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Feasibility of Use of BariCare App in Pre-bariatric Surgery.

NCT01708135
View directory record Official record
Conditions
Obesity
Interventions
Use of smartphone app
Behavioral
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Sep 16, 2014 · Synced Sep 30, 2026, 8:07 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Alcohol Related Impairment and Reinforcement: Pre to Post Roux en Y Gastric Bypass Surgery

NCT02370732
View directory record Official record
Conditions
Bariatric Surgery Candidate
Interventions
Alcohol
Other
Lead sponsor
Neuropsychiatric Research Institute, Fargo, North Dakota
Other
Eligibility
21 Years to 65 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2019
U.S. locations
1
States / cities
Fargo, North Dakota
Source: ClinicalTrials.gov public record
Updated Sep 28, 2016 · Synced Sep 30, 2026, 8:07 PM EDT
Completed No phase listed Observational

Assessment of Insulin Resistance, NAFLD, Predictors of CV Morbidity, and Subcutaneous Adipose and Visceral Adipose Gene Expression in Patients Undergoing Gastric Bypass Surgery

NCT01007955
View directory record Official record
Conditions
Morbid Obesity, Insulin Resistance, Non-Alcoholic Fatty Liver Disease
Interventions
Not listed
Lead sponsor
University of Massachusetts, Worcester
Other
Eligibility
18 Years to 65 Years
Enrollment
61 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2012
U.S. locations
1
States / cities
Worcester, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 24, 2012 · Synced Sep 30, 2026, 8:07 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Incidence of Hypercapnea in Morbidly Obese Post-Surgical Bariatric Patients Using the Sen Tec Transcutaneous PCO2 Monitor

NCT01248312
View directory record Official record
Conditions
Bariatric Patients
Interventions
Sentec monitoring device, sentec monitor
Device
Lead sponsor
Corewell Health East
Other
Eligibility
18 Years to 65 Years
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2012
U.S. locations
1
States / cities
Royal Oak, Michigan
Source: ClinicalTrials.gov public record
Updated Aug 20, 2012 · Synced Sep 30, 2026, 8:07 PM EDT
Completed No phase listed Observational

Psychological Symptoms Among Adolescents Enrolled in a Bariatric Surgery Program

NCT01079377
View directory record Official record
Conditions
Obesity
Interventions
Not listed
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
12 Years to 18 Years
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2017
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 23, 2018 · Synced Sep 30, 2026, 8:07 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 Sep 30, 2026, 8:07 PM 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 4, 2026 · Synced Sep 30, 2026, 8:07 PM EDT
Recruiting Not applicable Interventional

TAP Block Timing Study

NCT07064200
View directory record Official record
Conditions
Bariatric or General Abdominal Surgeries, Bariatric Surgery Patients
Interventions
TAP Block
Other
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years to 65 Years
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jan 27, 2026 · Synced Sep 30, 2026, 8:07 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 Sep 30, 2026, 8:07 PM 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 10, 2025 · Synced Sep 30, 2026, 8:07 PM EDT
Completed Not applicable Interventional

Effects of Wolffia Globosa (Mankai) in Patients Undergoing Bariatric Surgery.

NCT03999632
View directory record Official record
Conditions
Bariatric Surgery Candidate, Diet Modification
Interventions
Dietary modification with introduction of Mankai
Other
Lead sponsor
Cleveland Clinic Florida
Other
Eligibility
18 Years and older
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
1
States / cities
Weston, Florida
Source: ClinicalTrials.gov public record
Updated Feb 4, 2021 · Synced Sep 30, 2026, 8:07 PM 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 2, 2020 · Synced Sep 30, 2026, 8:07 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Vitamin Supplementation After Bariatric Surgery

NCT02686905
View directory record Official record
Conditions
Complications of Bariatric Procedures, Avitaminosis
Interventions
Chewable Multivitamin with Iron, PatchMD Vitamin D3/Calcium Patch, PatchMD Multivitamin Patch, PatchMD B12 Energy Plus Patch, Chewable Calcium, Quick Dissolve B12
Dietary Supplement
Lead sponsor
California State Polytechnic University, Pomona
Other
Eligibility
18 Years to 65 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
1
States / cities
Brea, California
Source: ClinicalTrials.gov public record
Updated Sep 30, 2016 · Synced Sep 30, 2026, 8:07 PM EDT
Terminated No phase listed Observational

Bariatric Education for Women With Obesity and Endometrial Cancer

NCT05396794
View directory record Official record
Conditions
Obesity, Endometrial Cancer, Bariatric Surgery Candidate
Interventions
Standard weight loss education, Standard weight loss education + Educational Video
Behavioral
Lead sponsor
University of Oklahoma
Other
Eligibility
18 Years to 80 Years · Female only
Enrollment
26 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated May 15, 2025 · Synced Sep 30, 2026, 8:07 PM EDT
Withdrawn Phase 4 Interventional Accepts healthy volunteers

Study of Proton Pump Inhibitors (PPI) to Prevent Strictures After Gastric Bypass Surgery

NCT00361985
View directory record Official record
Conditions
Anastomotic Stricture, Morbid Obesity
Interventions
Esomeprazole
Drug
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years to 60 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2011
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Nov 1, 2016 · Synced Sep 30, 2026, 8:07 PM EDT