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ClinicalTrials.gov public records Last synced Sep 29, 2026, 11:14 PM EDT

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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Post Bariatric Surgery Clear all
Completed Not applicable Interventional

Effect of Number of Meals on Metabolism After Weight Loss Surgery

NCT02929212
View directory record Official record
Conditions
Morbid Obesity
Interventions
Solid Meal, Liquid Meal, Acetaminophen, Single, 600 kcal meal, Multiple, 200 kcal meals
Other · Drug
Lead sponsor
Columbia University
Other
Eligibility
21 Years to 60 Years
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2014
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Feb 1, 2017 · Synced Sep 29, 2026, 11:14 PM EDT
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 Sep 29, 2026, 11:14 PM 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Withdrawn Phase 4 Interventional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 Sep 29, 2026, 11:14 PM EDT
Withdrawn Phase 4 Interventional

Efficacy of Naltrexone HCl/Bupropion HCl Extended Release Versus Placebo for Treatment of Weight Regain in Participants Post Bariatric Surgery

NCT02616315
View directory record Official record
Conditions
Weight Regain Post Bariatric Surgery
Interventions
Naltrexone HCl/Bupropion HCl Placebo, Naltrexone HCl/Bupropion HCl
Drug
Lead sponsor
Takeda
Industry
Eligibility
18 Years to 65 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
2
States / cities
Chicago, Illinois • Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 8, 2016 · Synced Sep 29, 2026, 11:14 PM EDT
Completed No phase listed Observational

Relationship Between Changes in Gut Hormones After Gastric Bypass and Gastric Banding and Improvements in Diabetes

NCT01153438
View directory record Official record
Conditions
Type 2 Diabetes, Obesity, Bariatric Surgery
Interventions
Not listed
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 17, 2016 · Synced Sep 29, 2026, 11:14 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 29, 2026, 11:14 PM EDT
Recruiting Phase 4 Interventional

Pharmacotherapy in Conjunction With Lifestyle Counseling for Management of Weight Regain After Bariatric Surgery

NCT05975580
View directory record Official record
Conditions
Obesity
Interventions
Topiramate, Phentermine, Placebo
Drug
Lead sponsor
University of California, Irvine
Other
Eligibility
18 Years to 70 Years
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2028
U.S. locations
1
States / cities
Orange, California
Source: ClinicalTrials.gov public record
Updated Jun 9, 2026 · Synced Sep 29, 2026, 11:14 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Improving Diabetes After Bariatric Surgery

NCT00676923
View directory record Official record
Conditions
Obesity, Diabetes
Interventions
Not listed
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years and older
Enrollment
63 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2012
U.S. locations
5
States / cities
Portland, Oregon • Pittsburgh, Pennsylvania • Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Nov 14, 2012 · Synced Sep 29, 2026, 11:14 PM EDT
Completed Phase 1 Interventional

Study to Examine the Effect of Gastric Bypass Surgery on Venlafaxine ER Blood Levels

NCT01867255
View directory record Official record
Conditions
Bariatric Surgery, Gastric Bypass, Roux-en-Y Gastric Bypass
Interventions
venlafaxine ER (extended-release) 75 mg
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Dec 23, 2015 · Synced Sep 29, 2026, 11:14 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 29, 2026, 11:14 PM EDT
Withdrawn No phase listed Observational

OnQ Pain Pump Effectiveness in Post Operative Pain Control in Bariatric Patients

NCT03159130
View directory record Official record
Conditions
Morbid Obesity
Interventions
Not listed
Lead sponsor
William Beaumont Army Medical Center
Federal
Eligibility
18 Years to 80 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
1
States / cities
El Paso, Texas
Source: ClinicalTrials.gov public record
Updated May 18, 2017 · Synced Sep 29, 2026, 11:14 PM 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 20, 2024 · Synced Sep 29, 2026, 11:14 PM EDT
Recruiting Not applicable Interventional

Motivating Increases in Physical Activity for Prevention of Weight Regain After Metabolic Bariatric Surgery

NCT06484621
View directory record Official record
Conditions
Obesity
Interventions
Acceptance and Commitment Therapy-Based Physical Activity Intervention, Physical Activity Education Control
Behavioral
Lead sponsor
Hartford Hospital
Other
Eligibility
18 Years to 64 Years
Enrollment
164 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2028
U.S. locations
1
States / cities
Hartford, Connecticut
Source: ClinicalTrials.gov public record
Updated Aug 6, 2026 · Synced Sep 29, 2026, 11:14 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Vascular Endothelium Changes After Bariatric Surgery (Endothelial Progenitor Cells)

NCT01213940
View directory record Official record
Conditions
Type 2 Diabetes
Interventions
pre-bariatric weight loss program, bariatric surgery
Behavioral · Procedure
Lead sponsor
University of South Alabama
Other
Eligibility
19 Years to 65 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2014
U.S. locations
1
States / cities
Mobile, Alabama
Source: ClinicalTrials.gov public record
Updated May 9, 2024 · Synced Sep 29, 2026, 11:14 PM EDT
Completed No phase listed Observational

Socioecological Factors Associated With Ethnic Disparities in Bariatric Surgery Utilization and Post-WLS

NCT06342050
View directory record Official record
Conditions
Obesity, Metabolic Syndrome
Interventions
Not listed
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
18 Years to 60 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated May 22, 2025 · Synced Sep 29, 2026, 11:14 PM EDT
Completed Early Phase 1 Interventional

Comparing Enoxaparin to Fondaparinux to Prevent Venous Thromboembolism (VTE) in Bariatric Surgical Patients

NCT00894283
View directory record Official record
Conditions
Deep Venous Thrombosis, Pulmonary Embolism
Interventions
Enoxaparin, Fondaparinux
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 70 Years
Enrollment
198 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2013
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jun 7, 2019 · Synced Sep 29, 2026, 11:14 PM EDT
Terminated No phase listed Observational

Recovery of Ventilation After General Anesthesia in Morbidly Obese Patients

NCT03925610
View directory record Official record
Conditions
Morbid Obesity, Opioid-Related Disorders, Surgery--Complications, Sleep Apnea Syndromes
Interventions
Not listed
Lead sponsor
Stanford University
Other
Eligibility
18 Years to 65 Years
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Mar 22, 2021 · Synced Sep 29, 2026, 11:14 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Pilot Behavioral Support Intervention After Bariatric Surgery

NCT03092479
View directory record Official record
Conditions
Obesity
Interventions
Behavioral Intervention
Behavioral
Lead sponsor
Geisinger Clinic
Other
Eligibility
18 Years to 65 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
Danville, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 16, 2020 · Synced Sep 29, 2026, 11:14 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Outcomes After Weight Loss Surgery in Low-Risk Patients

NCT05699083
View directory record Official record
Conditions
Weight Loss, Bariatric Surgery
Interventions
Body Image/Self-Esteem Questionnaires
Other
Lead sponsor
Dr. Feiz & Associates
Other
Eligibility
Not listed
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2026
U.S. locations
1
States / cities
Beverly Hills, California
Source: ClinicalTrials.gov public record
Updated Jan 26, 2023 · Synced Sep 29, 2026, 11:14 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 29, 2026, 11:14 PM EDT
Completed Phase 4 Interventional

Botulinum Toxin Pyloroplasty to Reduce Postoperative Nausea and Vomiting After Sleeve Gastrectomy

NCT03701919
View directory record Official record
Conditions
Bariatric Surgery, Postoperative Nausea and Vomiting
Interventions
Botulinum toxin pyloroplasty, Normal saline pyloric injection
Drug
Lead sponsor
Albany Medical College
Other
Eligibility
18 Years to 90 Years
Enrollment
84 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
1
States / cities
Albany, New York
Source: ClinicalTrials.gov public record
Updated Apr 10, 2023 · Synced Sep 29, 2026, 11:14 PM EDT
Not listed Phase 4 Interventional Accepts healthy volunteers

Pharmacokinetics of Lisdexamfetamine (Vyvanse®) in Post-bariatric Surgery Patients

NCT03070509
View directory record Official record
Conditions
Lisdexamfetamine
Interventions
Lisdexamfetamine
Drug
Lead sponsor
North Dakota State University
Other
Eligibility
18 Years to 60 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
Fargo, North Dakota
Source: ClinicalTrials.gov public record
Updated Aug 23, 2018 · Synced Sep 29, 2026, 11:14 PM EDT
Completed Not applicable Interventional

Decreasing Post-Operative Nausea and Vomiting in the Bariatric Surgical Patient

NCT06110416
View directory record Official record
Conditions
Nausea, Postoperative, Vomiting, Postoperative
Interventions
nausea relief inhaler
Other
Lead sponsor
Methodist Health System
Other
Eligibility
18 Years to 65 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
1
States / cities
Mansfield, Texas
Source: ClinicalTrials.gov public record
Updated May 1, 2026 · Synced Sep 29, 2026, 11:14 PM EDT
Not listed Phase 2Phase 3 Interventional

The Effects of Exenatide After Gastric Restriction

NCT00872378
View directory record Official record
Conditions
Morbid Obesity
Interventions
Exenatide, Placebo
Drug
Lead sponsor
Advanced Specialty Care
Other
Eligibility
18 Years and older
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
2
States / cities
Bend, Oregon
Source: ClinicalTrials.gov public record
Updated Mar 31, 2009 · Synced Sep 29, 2026, 11:14 PM EDT