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ClinicalTrials.gov public records Last synced Sep 30, 2026, 9:08 AM EDT

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Showing 25–48 of 133 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Bariatric Surgery Patient Clear all
Completed Phase 4 Interventional Results available

Apixaban Pharmacokinetics in Bariatric Patients (APB)

NCT02406885
View directory record Official record
Conditions
Bariatric Surgery, Obesity
Interventions
Apixaban
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 65 Years
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 22, 2020 · Synced Sep 30, 2026, 9:08 AM EDT
Active, not recruiting Phase 4 Interventional

Glucagon Dose-Response in Patients With Post-Bariatric Hypoglycemia

NCT06986603
View directory record Official record
Conditions
Hypoglycemia, Hypoglycemia, Reactive, Bariatric Surgery
Interventions
Glucagon for Injection (Fresenius Kabi USA)
Drug
Lead sponsor
Joslin Diabetes Center
Other
Eligibility
18 Years to 70 Years
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
2
States / cities
Birmingham, Alabama • Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 6, 2026 · Synced Sep 30, 2026, 9:08 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Biomarkers of Liver Pathology in Patients With Presumed Non-Alcoholic Steatohepatitis Following Bariatric Surgery

NCT03294850
View directory record Official record
Conditions
NASH - Nonalcoholic Steatohepatitis; NAFLD - Nonalcoholic Fatty Liver Disease
Interventions
Bariatric surgery, HepQuant SHUNT Dual Cholate Liver Diagnostic Kit
Procedure · Device
Lead sponsor
AdventHealth Translational Research Institute
Other
Eligibility
18 Years and older
Enrollment
14 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
Orlando, Florida
Source: ClinicalTrials.gov public record
Updated Jul 16, 2021 · Synced Sep 30, 2026, 9:08 AM EDT
Completed Not applicable Interventional

Evaluation of Apnea Tolerance in Bariatric Patients Following Rapid-sequence Induction of Anesthesia

NCT03056807
View directory record Official record
Conditions
General Surgery
Interventions
25° head-up position, 55° head-up position
Other
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
18 Years to 60 Years
Enrollment
65 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
1
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated Feb 17, 2017 · Synced Sep 30, 2026, 9:08 AM EDT
Completed No phase listed Observational

Laparoscopic Revision of Vertical Banded Gastroplasty to Gastric Bypass

NCT01041131
View directory record Official record
Conditions
Clinically Severe Obesity, Inadequate Weight Loss, Obesity Recidivism
Interventions
Not listed
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years to 65 Years
Enrollment
70 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, 9:08 AM EDT
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, 9:08 AM 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, 9:08 AM 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, 9:08 AM 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, 9:08 AM 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, 9:08 AM EDT
Completed No phase listed Observational

Prophylactic Enoxaparin Dosing in Roux-en-Y Gastric Bypass Surgery Patients at St. Vincent Carmel

NCT01230658
View directory record Official record
Conditions
Obesity
Interventions
Not listed
Lead sponsor
Ascension St. Vincent Carmel Hospital
Other
Eligibility
18 Years and older
Enrollment
51 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
1
States / cities
Carmel, Indiana
Source: ClinicalTrials.gov public record
Updated Aug 14, 2024 · Synced Sep 30, 2026, 9:08 AM 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, 9:08 AM 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, 9:08 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 4, 2026 · Synced Sep 30, 2026, 9:08 AM 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, 9:08 AM 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, 9:08 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 2, 2020 · Synced Sep 30, 2026, 9:08 AM EDT
Completed Phase 4 Interventional Results available

Optimizing Post-operative Recovery in Bariatric Patients With Obstructive Sleep Apnea Undergoing Outpatient Surgery: A Comparison of Sugammadex and Neostigmine

NCT04570150
View directory record Official record
Conditions
Anesthesia
Interventions
Sugammadex, Neostigmine
Drug
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years to 80 Years
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Apr 15, 2024 · Synced Sep 30, 2026, 9:08 AM EDT
Completed Not applicable Interventional Results available

Effect of Single Dose Ketamine and Magnesium on Postoperative Pain in Patients Undergoing Bariatric Surgery

NCT02334059
View directory record Official record
Conditions
Obesity
Interventions
Ketamine, Ketamine plus magnesium, Placebo
Drug · Other
Lead sponsor
Milton S. Hershey Medical Center
Other
Eligibility
18 Years to 80 Years
Enrollment
108 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2019
U.S. locations
1
States / cities
Hershey, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 1, 2020 · Synced Sep 30, 2026, 9:08 AM EDT
Completed Not applicable Interventional

Study Testing Patient Decision Tools Related to the Risks and Benefits of Weight Loss Surgery

NCT00666952
View directory record Official record
Conditions
Obesity, Morbid, Obesity, Decision Aids, Bariatric Surgery
Interventions
Video Decision Aid, Booklet Decision Aid
Other
Lead sponsor
Kaiser Permanente
Other
Eligibility
20 Years to 65 Years
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Oct 13, 2017 · Synced Sep 30, 2026, 9:08 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Feasibility and Preliminary Efficacy of Support Figure Attendance at Bariatric Patients' Clinical Visits

NCT03642197
View directory record Official record
Conditions
Obesity, Morbid, Bariatric Surgery Candidate, Diet Habit, Behavior, Social, Physical Activity
Interventions
Attendance
Behavioral
Lead sponsor
Ohio State University
Other
Eligibility
18 Years and older
Enrollment
63 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Sep 30, 2025 · Synced Sep 30, 2026, 9:08 AM EDT
Terminated Not applicable Interventional

Total Joint Arthroplasty (TJA) Weight Loss Study

NCT05156762
View directory record Official record
Conditions
Osteoarthritis, Hip, Osteoarthritis, Knee, Obesity, Morbid
Interventions
Bariatric surgery, Medical weight loss, Patient research surveys, Total joint arthroplasty (TJA), Usual standard of care
Procedure · Behavioral · Other
Lead sponsor
Boston Medical Center
Other
Eligibility
18 Years and older
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 14, 2025 · Synced Sep 30, 2026, 9:08 AM EDT
Terminated No phase listed Observational

Studies of Biological Changes Related to Weight Loss After Gastric Bypass Surgery

NCT00120562
View directory record Official record
Conditions
Obesity, Morbid Obesity, Weight Loss
Interventions
Gastric Bypass Surgery
Procedure
Lead sponsor
Rockefeller University
Other
Eligibility
18 Years to 65 Years
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2007
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 28, 2009 · Synced Sep 30, 2026, 9:08 AM EDT
Terminated Not applicable Interventional Results available

Intravenous Acetaminophen Use With Bariatric Surgery on Morbidly Obese Patients

NCT01527942
View directory record Official record
Conditions
Obesity, Pain
Interventions
Acetaminophen, Placebo
Drug
Lead sponsor
Trinity Health Of New England
Other
Eligibility
20 Years to 70 Years
Enrollment
34 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
1
States / cities
Hartford, Connecticut
Source: ClinicalTrials.gov public record
Updated Dec 17, 2015 · Synced Sep 30, 2026, 9:08 AM EDT