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ClinicalTrials.gov public records Last synced Oct 20, 2026, 2:29 PM EDT

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Showing 1–24 of 492 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Bariatric Surgery Procedures Clear all
Terminated Not applicable Interventional

Loop Duodenal Switch: Outcomes at One Year

NCT03206736
View directory record Official record
Conditions
Obesity, Morbid
Interventions
Loop DS surgery
Other
Lead sponsor
University of Nebraska
Other
Eligibility
19 Years to 70 Years
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Omaha, Nebraska
Source: ClinicalTrials.gov public record
Updated Aug 29, 2023 · Synced Oct 20, 2026, 2:29 PM EDT
Completed No phase listed Observational

Protocol for the Assessment of Variability in Histology and Gene Expression in Bariatric Surgery Patients.

NCT00280527
View directory record Official record
Conditions
Obesity
Interventions
Not listed
Lead sponsor
Northwestern University
Other
Eligibility
18 Years to 65 Years
Enrollment
43 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Dec 20, 2011 · Synced Oct 20, 2026, 2:29 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

CoolSculpting of the Flank With Alternate Treatment Parameters

NCT02081196
View directory record Official record
Conditions
Body Fat Disorder
Interventions
The Zeltiq CoolSculpting System
Device
Lead sponsor
Zeltiq Aesthetics
Industry
Eligibility
18 Years to 65 Years
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014
U.S. locations
2
States / cities
Sacramento, California • Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Mar 1, 2021 · Synced Oct 20, 2026, 2:29 PM EDT
Not listed Phase 1Phase 2 Interventional Accepts healthy volunteers

Tumescent Lidocaine Maximum Safe mg/kg Dosage

NCT00977028
View directory record Official record
Conditions
Anesthesia
Interventions
Tumescent Local Anesthesia (lidocaine, epinephrine), Liposuction
Drug · Procedure
Lead sponsor
Klein, Jeffrey A., M.D.
Individual
Eligibility
18 Years to 72 Years · Female only
Enrollment
14 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2011
U.S. locations
1
States / cities
San Juan Capistrano, California
Source: ClinicalTrials.gov public record
Updated Jun 16, 2011 · Synced Oct 20, 2026, 2:29 PM 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 8, 2026 · Synced Oct 20, 2026, 2:29 PM EDT
Completed Not applicable Interventional

Focused Incentive Spirometry Monitoring to Reduce Postoperative Oxygen Therapy and Respiratory Complications After Bariatric Surgery

NCT03010852
View directory record Official record
Conditions
Respiratory Complication
Interventions
Focused incentive spirometer education and monitoring
Behavioral
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 80 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2020
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Feb 12, 2021 · Synced Oct 20, 2026, 2:29 PM EDT
Completed Not applicable Interventional

Reducing Alcohol Use Post-Bariatric Surgery

NCT04788316
View directory record Official record
Conditions
Bariatric Surgery Candidate, Alcohol Drinking
Interventions
CBI and Text messaging
Behavioral
Lead sponsor
Henry Ford Health System
Other
Eligibility
Not listed
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
Detroit, Michigan
Source: ClinicalTrials.gov public record
Updated May 16, 2025 · Synced Oct 20, 2026, 2:29 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 Oct 20, 2026, 2:29 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Multiple CoolSculpting Treatment Study

NCT01814007
View directory record Official record
Conditions
Body Fat Disorder
Interventions
The Zeltiq CoolSculpting System
Device
Lead sponsor
Zeltiq Aesthetics
Industry
Eligibility
18 Years to 65 Years
Enrollment
35 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013
U.S. locations
3
States / cities
Pleasanton, California • Walnut Creek, California • Miami, Florida
Source: ClinicalTrials.gov public record
Updated May 17, 2021 · Synced Oct 20, 2026, 2:29 PM EDT
Withdrawn No phase listed Observational

Adjustable Gastric Band Survey Study

NCT01041534
View directory record Official record
Conditions
Morbid Obesity
Interventions
Survey
Other
Lead sponsor
University of Washington
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Dec 13, 2022 · Synced Oct 20, 2026, 2:29 PM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Telemedicine Follow-up for Bariatric Surgery Patients: What Do Patients Prefer

NCT04784286
View directory record Official record
Conditions
Obesity
Interventions
Telemedicine 30-day post-op visit, In-Person 30-day post-op visit
Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Mar 5, 2021 · Synced Oct 20, 2026, 2:29 PM 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 5, 2025 · Synced Oct 20, 2026, 2:29 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Effects of Gastric Bypass on Blood Levels of Duloxetine

NCT00989157
View directory record Official record
Conditions
Bariatric Surgery
Interventions
Duloxetine
Drug
Lead sponsor
Neuropsychiatric Research Institute, Fargo, North Dakota
Other
Eligibility
18 Years to 60 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2012
U.S. locations
1
States / cities
Fargo, North Dakota
Source: ClinicalTrials.gov public record
Updated Aug 11, 2014 · Synced Oct 20, 2026, 2:29 PM EDT
Completed Not applicable Interventional

Teaching Obesity Treatment Options to Adult Learners (TOTAL): A Multisite RCT

NCT05346575
View directory record Official record
Conditions
Obesity, Overweight
Interventions
Teaching Obesity Treatments to Adult Learners (TOTAL), Usual care
Behavioral
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years to 70 Years
Enrollment
440 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
2
States / cities
West Los Angeles, California • Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Sep 10, 2026 · Synced Oct 20, 2026, 2:29 PM EDT
Completed No phase listed Observational Results available

Laparoscopic Versus Transabdominal Ultrasound in Morbidly Obese Patients

NCT00971750
View directory record Official record
Conditions
Cholelithiasis, Ultrasonography, Laparoscopic Gastric Bypass
Interventions
Not listed
Lead sponsor
Gundersen Lutheran Medical Foundation
Other
Eligibility
18 Years and older
Enrollment
253 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2011
U.S. locations
1
States / cities
La Crosse, Wisconsin
Source: ClinicalTrials.gov public record
Updated Jul 11, 2012 · Synced Oct 20, 2026, 2:29 PM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

Comparison Between Pyloric Preserving and Non-Pyloric Preserving Bariatric Surgery With Glucose Challenge

NCT00998374
View directory record Official record
Conditions
Hypoglycemia, Obesity
Interventions
Not listed
Lead sponsor
Medtronic - MITG
Industry
Eligibility
19 Years and older
Enrollment
62 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2013
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 21, 2014 · Synced Oct 20, 2026, 2:29 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 Oct 20, 2026, 2:29 PM EDT
Completed No phase listed Observational

Pilot Study of the Effect of Weight Loss on Breast Tissue and Blood Biomarkers in Women at Increased Risk for Breast Cancer

NCT02681120
View directory record Official record
Conditions
Breast Neoplasms, Obesity
Interventions
Biopsy, Blood draw, Mammogram, MRI
Procedure
Lead sponsor
Tarah J Ballinger, MD
Other
Eligibility
18 Years to 75 Years · Female only
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2020
U.S. locations
3
States / cities
Carmel, Indiana • Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Oct 14, 2021 · Synced Oct 20, 2026, 2:29 PM EDT
Not listed Not applicable Interventional

Tai Chi as a Novel Strategy to Increase Physical Activity Among Adults Pursuing Metabolic and Bariatric Surgery

NCT06445413
View directory record Official record
Conditions
Obesity
Interventions
Tai Chi
Other
Lead sponsor
Hartford Hospital
Other
Eligibility
18 Years to 70 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
Hartford, Connecticut
Source: ClinicalTrials.gov public record
Updated Jun 6, 2024 · Synced Oct 20, 2026, 2:29 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Pre-op Use of Incentive Spirometry in Obese Patients

NCT01004146
View directory record Official record
Conditions
Lung Function, Bariatric Surgery
Interventions
Incentive Spirometry
Procedure
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
18 Years to 80 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Feb 3, 2014 · Synced Oct 20, 2026, 2:29 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 Oct 20, 2026, 2:29 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 Oct 20, 2026, 2:29 PM EDT
Recruiting Phase 1 Interventional Accepts healthy volunteers

The Role of Glucagon in Glucose Metabolism in Humans With and Without Bariatric Surgery

NCT07212868
View directory record Official record
Conditions
Non-Diabetic
Interventions
REMD-477 versus Placebo, Exogenous glucagon versus saline infusion
Drug · Other
Lead sponsor
The University of Texas Health Science Center at San Antonio
Other
Eligibility
18 Years to 65 Years
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2030
U.S. locations
2
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Oct 5, 2026 · Synced Oct 20, 2026, 2:29 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Mechanisms Defending Fat Mass in Humans After Lipectomy

NCT00993213
View directory record Official record
Conditions
Disproportionate Shape, Expanded Fat Pads
Interventions
Standard of Care with Liposuction, Standard of Care without Liposuction
Procedure · Other
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2008
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Dec 6, 2016 · Synced Oct 20, 2026, 2:29 PM EDT