Bariatric Surgery Clinical Trials

53 recruiting

Bariatric Surgery Trials at a Glance

128 actively recruiting trials for bariatric surgery are listed on ClinicalTrialsFinder across 6 cities in 29 countries. The largest study group is Not Applicable with 64 trials, with the heaviest enrollment activity in Lille, London, and New York. Lead sponsors running bariatric surgery studies include Universitaire Ziekenhuizen KU Leuven, China-Japan Friendship Hospital, and Assistance Publique - Hôpitaux de Paris.

Browse bariatric surgery trials by phase

Treatments under study

About Bariatric Surgery Clinical Trials

Looking for clinical trials for Bariatric Surgery? There are currently 53 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 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 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 128 trials

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
Not Applicable

Comparing Revisional Laparoscopic Roux-en-Y Gastric Bypass Versus Ringed Revisional Roux-en-Y Gastric Bypass After Laparoscopic Sleeve Gastrectomy

Revisional Bariatric Surgery
General Committee of Teaching Hospitals and Institutes, Egypt240 enrolled1 locationNCT07436013
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

Bone Marrow Fat and Bariatric Surgery-Mediated Bone Loss

Bariatric Surgery in Postmenopausal Women
University Hospital, Lille40 enrolled1 locationNCT05005039
Recruiting
Phase 3

Suzetrigine-enhanced MultimOdal Opioid-sparing THerapy in Cardiac and Bariatric SURGery

Bariatric SurgeryCardiac Surgery With Sternotomy
Icahn School of Medicine at Mount Sinai235 enrolled1 locationNCT07539623
Recruiting
Not Applicable

Mechanistic and Clinical Outcomes of a Surgical Innovation Aimed at Minimizing GERD Associated With VSG (INNOVATE-VSG)

ObesityBariatric SurgeryGastroesophageal Reflux Disease+1 more
University of California, Irvine44 enrolled2 locationsNCT06783751
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

Impact of a Pro-diversity Gut Microbiota Diet After a Bariatric Surgery on Gut Microbiota, Eating Behaviour and Sensory Function

Bariatric SurgeryObesity (Disorder)
Hospices Civils de Lyon60 enrolled3 locationsNCT07268508
Recruiting

Glycemic Markers for Predicting Gestational Diabetes in Pregnant Women With Previous Bariatric Surgery

Pregnancy ComplicationsGestational Diabetes Mellitus (GDM)History of Bariatric Surgery
Burak Deniz Aydoğdu84 enrolled1 locationNCT07517406
Recruiting
Not Applicable

Indocyanine Green Fluorescence Angiography (ICG-FA) in Revisional Bariatric Surgery

ObesityBariatric Surgery
Instituto Mexicano del Seguro Social108 enrolled1 locationNCT07000539
Recruiting
Not Applicable

Implementing an Interdisciplinary Eating Disorder Screening and Treatment Program for Post-Bariatric Surgery Patients in Nova Scotia

Disordered Eating BehaviorsBariatric Surgery Patients
Aaron Keshen250 enrolled1 locationNCT06914219
Recruiting
Phase 1

Development of a MHBC Intervention for Weight Loss and Smoking Cessation for Pre-Bariatric Surgery Patients

ObesitySmoking CessationBariatric Surgery Patients
Yale University20 enrolled1 locationNCT07224087
Recruiting
Not Applicable

Post-sleeve Gastrectomy Gastroesophageal Reflux Disease Prediction

Gastroesophageal RefluxSleeve GastrectomyBariatric Surgery Complication
Mayo Clinic200 enrolled2 locationsNCT04411823
Recruiting
Not Applicable

Flow-Controlled Versus Volume-Controlled Ventilation in Bariatric Surgery

ObesityBariatric SurgeryMechanical Ventilation
Ankara Etlik City Hospital40 enrolled1 locationNCT07430111
Recruiting
Not Applicable

Bariatric Surgery for the Reduction of cArdioVascular Events Randomized Controlled Trial

Cardiovascular ComplicationBariatric Surgery Candidate
Population Health Research Institute200 enrolled1 locationNCT05531474
Recruiting
Not Applicable

Effects of Respiratory Muscle Training in Post-bariatric Surgery Patients

Bariatric Surgery
University Ramon Llull52 enrolled1 locationNCT07289958
Recruiting
Not Applicable

TAP Block Timing Study

Bariatric Surgery PatientsBariatric or General Abdominal Surgeries
Weill Medical College of Cornell University150 enrolled1 locationNCT07064200
Recruiting

Gastro-Intestinal Digestion and Physiology After Bariatric Surgery

Bariatric Surgery
Universitaire Ziekenhuizen KU Leuven51 enrolled1 locationNCT07286968
Recruiting
Not Applicable

Magnetic Compression Anastomosis Procedure for Partial Jejuno-ileal Diversion: Evaluating the Feasibility of a Novel Endoscopic Magnetic Metabolic Interventional Therapy

Bariatric SurgeryDiabetes Type 2
iIDEAS Group Holdings Limited5 enrolled1 locationNCT07350967