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ClinicalTrials.gov public records Last synced Jul 23, 2026, 2:48 AM EDT

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Showing 1–24 of 133 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Bariatric Surgery Patient Clear all
Terminated No phase listed Observational

Eye Movement Testing in Patients With Obesity and the Impact of Weight Loss Surgery

NCT04940429
View directory record Official record
Conditions
Bariatric Surgery Candidate, Obesity, Morbid
Interventions
Neurofit, Psychometric hepatic encephalopathy score
Device · Diagnostic Test
Lead sponsor
Stanford University
Other
Eligibility
18 Years to 65 Years
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
1
States / cities
Redwood City, California
Source: ClinicalTrials.gov public record
Updated Jun 24, 2021 · Synced Jul 23, 2026, 2:48 AM EDT
Completed Phase 2 Interventional Results available

Delivery of G-Pump™ (Glucagon Infusion) From an OmniPod® to Prevent Hypoglycemia in Post-Bariatric Surgery Patients

NCT02733588
View directory record Official record
Conditions
Hypoglycemia, Complications of Bariatric Procedures
Interventions
G-Pump™ (glucagon infusion)
Drug
Lead sponsor
Xeris Pharmaceuticals
Industry
Eligibility
18 Years to 65 Years
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 29, 2018 · Synced Jul 23, 2026, 2:48 AM EDT
Completed No phase listed Observational

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
13,722 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Jan 1, 2020 · Synced Jul 23, 2026, 2:48 AM EDT
Available No phase listed Expanded access

An Expanded Access Protocol to Provide Avexitide in Patients With Post-Bariatric Hypoglycemia

NCT07582874
View directory record Official record
Conditions
Post-bariatric Hypoglycemia
Interventions
Avexitide
Drug
Lead sponsor
Amylyx Pharmaceuticals Inc.
Industry
Eligibility
18 Years and older
U.S. locations
4
States / cities
Boston, Massachusetts • Morehead City, North Carolina • Mesquite, Texas + 1 more
Source: ClinicalTrials.gov public record
Updated Jul 13, 2026 · Synced Jul 23, 2026, 2:48 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 5, 2026 · Synced Jul 23, 2026, 2:48 AM EDT
Recruiting Phase 3 Interventional

Trial of IV vs Oral Iron Treatment of Iron Deficiency Anemia in the Post-Operative Bariatric Surgical Patient

NCT04268849
View directory record Official record
Conditions
Iron Deficiency Anemia
Interventions
Ferumoxytol, Saline, Ferrous sulfate tablets, Vitamin C
Drug
Lead sponsor
Auerbach Hematology Oncology Associates P C
Other
Eligibility
18 Years and older
Enrollment
104 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 2, 2025 · Synced Jul 23, 2026, 2:48 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 14, 2024 · Synced Jul 23, 2026, 2:48 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 15, 2014 · Synced Jul 23, 2026, 2:48 AM EDT
Withdrawn No phase listed Observational

Effects of Bariatric Surgery on Breast Density Improvement and Impact on Breast Cancer Risk in Severe Obese Patients

NCT04170335
View directory record Official record
Conditions
Breast Cancer, Morbid Obesity, Bariatric Surgery Candidate
Interventions
Bariatric surgery
Procedure
Lead sponsor
The Cleveland Clinic
Other
Eligibility
40 Years to 74 Years · Female only
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Weston, Florida
Source: ClinicalTrials.gov public record
Updated Sep 14, 2023 · Synced Jul 23, 2026, 2:48 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 12, 2017 · Synced Jul 23, 2026, 2:48 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 May 31, 2020 · Synced Jul 23, 2026, 2:48 AM EDT
Not listed Not applicable Interventional

Resolution of Comorbidities, Safety and Efficacy of Greater Curvature Plication in Obese Patients.

NCT01512940
View directory record Official record
Conditions
Obesity
Interventions
Laparoscopic Greater Curvature Plication
Procedure
Lead sponsor
Singh, Kuldeep, M.D., P.A.
Individual
Eligibility
18 Years to 65 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 12, 2012 · Synced Jul 23, 2026, 2:48 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 23, 2012 · Synced Jul 23, 2026, 2:48 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 29, 2025 · Synced Jul 23, 2026, 2:48 AM EDT
Enrolling by invitation Not applicable Interventional

Preoperative Use of a Magnetically Controlled Capsule Endoscopy in Patients Undergoing Bariatric Surgery

NCT07587437
View directory record Official record
Conditions
Obesity, Bariatric Surgery Candidate, Hypertension, Diabetes
Interventions
Magnetically Controlled Capsule Endoscopy (MCCE)
Device
Lead sponsor
Jerry Dang
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated May 13, 2026 · Synced Jul 23, 2026, 2:48 AM EDT
Recruiting Not applicable Interventional

Use of Transcutaneous Electrical Nerve Stimulation Device, Reletex Reliefband, With Current ERAS (Enhanced Recovery After Surgery) Protocol to Further Decrease Postoperative Nausea and Vomiting in the Bariatric Surgical Patient Within the First 24 Hours Postoperatively.

NCT07063979
View directory record Official record
Conditions
Postoperative Nausea and Vomiting, Bariatric Sleeve Gastrectomy
Interventions
Wearable Transcutaneous electrical Nerve Stimulation unit to mitigate postoperative nausea and vomiting (PONV) in the Bariatric Surgical Patient, A sham device that will mimic the active wearable device. It will look the same, and buzz but will not actually admit a low-leve electric current that would stimulate the nerves.
Device
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 75 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Plainsboro, New Jersey
Source: ClinicalTrials.gov public record
Updated Jun 9, 2026 · Synced Jul 23, 2026, 2:48 AM EDT
Completed No phase listed Observational

Small Bowel Length and Bariatric Surgery Outcomes

NCT02872493
View directory record Official record
Conditions
Malnutrition, Obesity, Weight Loss, Micronutrient Deficiency
Interventions
Small bowel length measurement
Procedure
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years and older
Enrollment
470 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2025
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jul 7, 2025 · Synced Jul 23, 2026, 2:48 AM EDT
Not listed No phase listed Observational

Capnography in the Post-Anesthesia Care Unit (PACU)

NCT03076047
View directory record Official record
Conditions
Obstructive Sleep Apnea, Bariatric Surgery Candidate, Respiratory Insufficiency
Interventions
end-tidal CO2 (ETCO2) monitoring
Device
Lead sponsor
University of South Florida
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2023
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Jun 29, 2022 · Synced Jul 23, 2026, 2:48 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 10, 2025 · Synced Jul 23, 2026, 2:48 AM 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 25, 2023 · Synced Jul 23, 2026, 2:48 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 Dec 31, 2009 · Synced Jul 23, 2026, 2:48 AM EDT
Terminated Not applicable Interventional Results available

A Study of the Laparoscopically-placed Adjustable Gastric Band for the Management of Obesity in Adolescent Patients

NCT01409928
View directory record Official record
Conditions
Obesity
Interventions
LAP-BAND (Allergan, Inc.)
Device
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
14 Years to 17 Years
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2016
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Apr 6, 2020 · Synced Jul 23, 2026, 2:48 AM EDT
Not yet recruiting Not applicable Interventional

Gastric Ultrasound in Patients Who Have Undergone Bariatric Surgery

NCT07310875
View directory record Official record
Conditions
Obesity, Weight Loss, Gastrectomy
Interventions
Gastric Point of Care Ultrasound
Procedure
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
18 Years to 85 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Dec 29, 2025 · Synced Jul 23, 2026, 2:48 AM EDT
Completed Not applicable Interventional

Enhanced Recovery After Surgery in Laparoscopic Sleeve Gastrectomy

NCT03520803
View directory record Official record
Conditions
Obesity
Interventions
Enhanced recovery after surgery protocol
Other
Lead sponsor
Hartford Hospital
Other
Eligibility
18 Years to 70 Years
Enrollment
132 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
1
States / cities
Hartford, Connecticut
Source: ClinicalTrials.gov public record
Updated Feb 8, 2021 · Synced Jul 23, 2026, 2:48 AM EDT