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ClinicalTrials.gov public records Last synced Sep 9, 2026, 1:55 AM EDT

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Showing 1–24 of 87 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Bariatric Surgery Candidate Clear all
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 3, 2025 · Synced Sep 9, 2026, 1:55 AM EDT
Active, not recruiting 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 – 2026
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated Aug 7, 2025 · Synced Sep 9, 2026, 1:55 AM EDT
Active, not recruiting Phase 4 Interventional

Surgical or Medical Treatment

NCT04128995
View directory record Official record
Conditions
Diabetes Mellitus, Type 2, Pediatric Obesity, Bariatric Surgery Candidate
Interventions
Advanced Medical Therapy and Bariatric Surgery, Advanced Medical Therapy, Bariatric Surgery
Procedure · Drug
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
13 Years to 19 Years
Enrollment
88 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2026
U.S. locations
3
States / cities
Aurora, Colorado • Chicago, Illinois • Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Mar 23, 2026 · Synced Sep 9, 2026, 1:55 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 18, 2020 · Synced Sep 9, 2026, 1:55 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 24, 2020 · Synced Sep 9, 2026, 1:55 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 Feb 28, 2021 · Synced Sep 9, 2026, 1:55 AM EDT
Completed Phase 1Phase 2 Interventional

Impact of Metabolic Surgery on Pancreatic, Renal and Cardiovascular Health in Youth With Type 2 Diabetes

NCT03620773
View directory record Official record
Conditions
Type 2 Diabetes Mellitus, Obesity, Bariatric Surgery Candidate, Nephropathy, Diabetic Kidney Disease, Diabetes Mellitus, Type 2, Diabetes Mellitus, Diabetes Complications, Weight Loss, Diabetic Nephropathies, Adolescent Obesity, Pediatric Obesity
Interventions
Aminohippurate Sodium Inj 20%, Iohexol Inj 300 mg/mL, Vertical Sleeve Gastrectomy, Renal Biopsy
Drug · Procedure
Lead sponsor
University of Colorado, Denver
Other
Eligibility
12 Years to 21 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2024
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Jan 11, 2026 · Synced Sep 9, 2026, 1:55 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

RemI for Post-Bariatric Surgery Weight Regain

NCT06292936
View directory record Official record
Conditions
Obesity, Bariatric Surgery Candidate
Interventions
Acceptance-Based Behavioral Intervention
Behavioral
Lead sponsor
Temple University
Other
Eligibility
18 Years to 70 Years
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2028
U.S. locations
2
States / cities
Chicago, Illinois • Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 2, 2026 · Synced Sep 9, 2026, 1:55 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 Sep 9, 2026, 1:55 AM EDT
Completed Not applicable Interventional

Postoperative Osteopathic Manipulative Treatment in Bariatric Surgery

NCT03833011
View directory record Official record
Conditions
Pain, Bariatric Surgery Candidate
Interventions
Osteopathic Manipulation
Procedure
Lead sponsor
MediSys Health Network
Other
Eligibility
18 Years and older
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018
U.S. locations
1
States / cities
Flushing, New York
Source: ClinicalTrials.gov public record
Updated Feb 7, 2019 · Synced Sep 9, 2026, 1:55 AM EDT
Enrolling by invitation No phase listed Observational

Cognitive Impairment, Obesity, and the Effects of Bariatric Surgery

NCT05215886
View directory record Official record
Conditions
Obesity, Morbid, Bariatric Surgery Candidate
Interventions
Surgery
Behavioral
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years to 75 Years
Enrollment
9,500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2028
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated Dec 4, 2025 · Synced Sep 9, 2026, 1:55 AM EDT
Completed Not applicable Interventional

Endoscopic Gastric Mucosal Devitalization (GMD) as a Primary Obesity Therapy - Part 2

NCT03638843
View directory record Official record
Conditions
Obesity, Obesity, Morbid, Obesity; Endocrine, Bariatric Surgery Candidate
Interventions
Gastric mucosal devitalization
Procedure
Lead sponsor
Johns Hopkins University
Other
Eligibility
28 Years to 60 Years
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 19, 2021 · Synced Sep 9, 2026, 1:55 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 7, 2026 · Synced Sep 9, 2026, 1:55 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Resting Metabolic Rate Testing in Bariatric Surgery Patients

NCT03221543
View directory record Official record
Conditions
Weight Loss, Bariatric Surgery Candidate
Interventions
ReeVue Indirect Calorimeter
Device
Lead sponsor
Baylor Research Institute
Other
Eligibility
18 Years and older
Enrollment
84 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2023
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Jan 25, 2026 · Synced Sep 9, 2026, 1:55 AM EDT
Completed Phase 4 Interventional Results available

Pilot Study for Zoledronic Acid to Prevent Bone Loss After Bariatric Surgery

NCT03424239
View directory record Official record
Conditions
Bariatric Surgery Candidate
Interventions
Zoledronic Acid, Calcium citrate + vitamin D, Vitamin D3
Drug · Dietary Supplement
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
25 Years to 100 Years
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 28, 2021 · Synced Sep 9, 2026, 1:55 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

CV Imaging of Metabolic Interventions

NCT05650307
View directory record Official record
Conditions
Bariatric Surgery Candidate, Heart Failure, Cardiovascular Diseases
Interventions
MRI
Diagnostic Test
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years and older
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2027
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated May 7, 2026 · Synced Sep 9, 2026, 1:55 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Protein Supplementation Post Bariatric Surgery

NCT02951663
View directory record Official record
Conditions
Bariatric Surgery Candidate
Interventions
Protein
Dietary Supplement
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 70 Years
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2019
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Mar 19, 2019 · Synced Sep 9, 2026, 1:55 AM EDT
Not listed No phase listed Observational Accepts healthy volunteers

Fat Taste Sensory Study

NCT03540693
View directory record Official record
Conditions
Bariatric Surgery Candidate, Bariatric Surgical Procedure
Interventions
RYGB, SG, LAGB
Procedure
Lead sponsor
University of Illinois at Urbana-Champaign
Other
Eligibility
18 Years to 64 Years
Enrollment
105 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2023
U.S. locations
1
States / cities
Urbana, Illinois
Source: ClinicalTrials.gov public record
Updated Apr 27, 2021 · Synced Sep 9, 2026, 1:55 AM 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 27, 2016 · Synced Sep 9, 2026, 1:55 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 23, 2020 · Synced Sep 9, 2026, 1:55 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 2, 2026 · Synced Sep 9, 2026, 1:55 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 17, 2025 · Synced Sep 9, 2026, 1:55 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 Sep 9, 2026, 1:55 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 12, 2024 · Synced Sep 9, 2026, 1:55 AM EDT