Bariatric Surgery Candidate Clinical Trials

59 recruitingLast updated: June 18, 2026

There are 59 actively recruiting bariatric surgery candidate clinical trials across 21 countries. Studies span Not Applicable, Early Phase 1. Top locations include London, United Kingdom, Chicago, Illinois, United States, Cleveland, Ohio, United States. Updated daily from ClinicalTrials.gov.


Bariatric Surgery Candidate Trials at a Glance

59 actively recruiting trials for bariatric surgery candidate are listed on ClinicalTrialsFinder across 6 cities in 21 countries. The largest study group is Not Applicable with 34 trials, with the heaviest enrollment activity in London, Chicago, and Cleveland. Lead sponsors running bariatric surgery candidate studies include Cairo University, Ain Shams University, and Centre Hospitalier Universitaire de Nice.

Browse bariatric surgery candidate trials by phase

Treatments under study

About Bariatric Surgery Candidate Clinical Trials

Looking for clinical trials for Bariatric Surgery Candidate? There are currently 59 studies actively recruiting participants. Clinical trials offer access to new treatments before they are widely available, and every approved therapy in use today was first tested through a clinical trial.

Below you can browse trials, sign up for alerts when new Bariatric Surgery Candidate trials open, and view eligibility criteria for each study. Each listing includes the study phase, locations, and enrollment details.

Frequently Asked Questions

Common questions about Bariatric Surgery Candidate clinical trials

A clinical trial is a carefully designed research study that tests new medical treatments, drugs, devices, or approaches in human volunteers. Every approved medication and treatment available today was proven safe and effective through clinical trials.

All clinical trials are reviewed and approved by Institutional Review Boards (IRBs) — independent committees that evaluate patient safety. Trials follow strict protocols, and your health is monitored closely throughout. You can withdraw at any time.

Not necessarily. Many trials compare the new treatment against the current standard of care, meaning all participants receive active treatment. When placebos are used, they are typically combined with standard treatment, not given alone. The trial description will always specify the design.

Under the Affordable Care Act, most private insurers are required to cover routine patient care costs during a clinical trial. The sponsor typically covers the investigational treatment itself. Medicare also covers routine costs for qualifying trials.

Yes. Participation is completely voluntary. You can withdraw at any time, for any reason, without it affecting your access to standard medical care.

Each trial has specific eligibility criteria — including age, diagnosis, disease stage, prior treatments, and general health. Browse the trials listed above and check their eligibility sections. You can also contact the trial site directly to discuss your situation.

Showing 120 of 59 trials

Recruiting
Not Applicable

Bariatric Surgery for the Reduction of cArdioVascular Events Randomized Controlled Trial

Cardiovascular ComplicationBariatric Surgery Candidate
Population Health Research Institute700 enrolled1 locationNCT05531474
Recruiting

Determinants of the Long-Term Success of Bariatric Surgery

Bariatric Surgery CandidateMorbid Obesity
University Hospital, Lille1,000 enrolled4 locationsNCT03517072
Recruiting
Not Applicable

Effect of Transcutaneous Electrical Nerve Stimulation on PODD in Bariatric Surgery Patients

Bariatric SurgeryBariatric Surgery Candidate
Cairo University70 enrolled2 locationsNCT07569705
Recruiting
Not Applicable

Gut Microbiome and Sex as Risk Factors for Kidney Stones After Bariatric Surgery

Bariatric Surgery Candidate
University of Chicago28 enrolled1 locationNCT04590690
Recruiting

CV Imaging of Metabolic Interventions

Heart FailureCardiovascular DiseasesBariatric Surgery Candidate
The Cleveland Clinic150 enrolled1 locationNCT05650307
Recruiting
Not Applicable

Evaluation of the Stress Response in Anesthesia Use Inhalation Anesthetic (Desflurane) Versus TIVA for Bariatric Surgery

Opioid UseObesityBariatric Surgery Candidate+1 more
G.Gennimatas General Hospital70 enrolled1 locationNCT07568938
Recruiting
Not Applicable

Evaluation of the Stress Response in Bariatric Surgery With and Without the Use of Opioids

Bariatric Surgery CandidateOpioid Use, Unspecified
G.Gennimatas General Hospital70 enrolled1 locationNCT05752799
Recruiting

Endoscopic Bariatric Therapies (EBTs): A Retrospective and Prospective Multicenter Registry

ObesityWeight LossGastro Esophageal Reflux+1 more
Weill Medical College of Cornell University9,999 enrolled1 locationNCT04494048
Recruiting
Not Applicable

Stepwise PEEP vs Sustained Inflation in Bariatric Surgery Patients

RecruitmentBariatric Surgery Candidate
Ain Shams University100 enrolled1 locationNCT07525232
Recruiting
Not Applicable

RemI for Post-Bariatric Surgery Weight Regain

ObesityBariatric Surgery Candidate
Temple University200 enrolled2 locationsNCT06292936
Recruiting
Not Applicable

Evaluation of the Implementation of a Diet Workshop on the 15th Postoperative Day Following Bariatric Surgery

Bariatric Surgery Candidate
University Hospital, Clermont-Ferrand88 enrolled1 locationNCT05695040
Recruiting
Not Applicable

Effects of Assisted Robotic vs Laparoscopic Sleeve Gastrectomy

ObesityQuality of LifePost Operative Pain+3 more
Ricard Corcelles91 enrolled1 locationNCT06425016
Recruiting
Not Applicable

Surgery Versus Best Medical Management for the Long Term Remission of Type 2 Diabetes and Related Diseases (REMISSION)

DiabetesBariatric Surgery Candidate
Laval University408 enrolled1 locationNCT02390973
Recruiting

Gut Microbiota in Metabolic Surgery

Cardiovascular DiseasesHypertensionType 2 Diabetes+3 more
Vanderbilt University Medical Center300 enrolled1 locationNCT05000996
Recruiting
Not Applicable

NUTritional Impact of a Hypocaloric Hyperprotein Diet Before Obesity Surgery

Diet, HealthyBariatric Surgery CandidateObesity, Visceral
University Hospital, Rouen200 enrolled3 locationsNCT04942093
Recruiting
Not Applicable

Conversion to SADI-S, RYGB or OAGB After Failed Sleeve

Comorbidities and Coexisting ConditionsWeight LossBariatric Surgery Candidate+1 more
General Committee of Teaching Hospitals and Institutes, Egypt234 enrolled1 locationNCT05608772
Recruiting
Not Applicable

Compliance With Standard Care vs Ready to Eat Meals Prior to Bariatric Surgery

Bariatric Surgery Candidate
National University Hospital, Singapore140 enrolled2 locationsNCT06461247
Recruiting
Not Applicable

Exercise, Brain Activity, and Weight Maintenance

ObesityWeight GainBariatric Surgery Candidate+1 more
Joslin Diabetes Center15 enrolled1 locationNCT06511310
Recruiting

Blood Collection Biorepository for Liver Disease Research

CirrhosisFibrosisHepatitis B+5 more
State University of New York at Buffalo1,000 enrolled1 locationNCT03025074
Recruiting
Not Applicable

GI Oxalate Absorption

Bariatric Surgery CandidateKidney Stone
University of Chicago30 enrolled1 locationNCT05356000