An interventional study of Bariatric surgery in Obesity, Morbid and Bariatric Surgery Candidate, sponsored by University Hospital, Montpellier. Recruiting at 1 site in France. Open to participants aged 15 Years and older. Per ClinicalTrials.gov, last updated 2026-06-22.
Sponsored by University Hospital, Montpellier · Not applicable, Interventional, and Basic science
The aim of this cohort is to evaluate the follow-up of morbidly obese patients treated by several types of bariatric procedures. In addition, this study could lead to the development of clinical trials on assessment of the bariatric surgery impact.
The main objective is to prospectively evaluate long-term efficiency of bariatric surgery in terms of weight loss. Moreover, this cohort wants to assess the long-term effectiveness of bariatric surgery on comorbidities and quality of life, the medical and economic impact of bariatric surgery (before-after comparison using data from health insurance), estimates the incidence of mortality and morbidity of bariatric surgery and to finish describe the evolution of patients in case of new-surgery. From a methodological point of view, the Obesity cohort is a prospective cohort study, single-center, open, with aftercare performed during life of patients. The number of inclusions is to 1500 patients. After surgery , patients will be followed at least 4 visits the first year and at least 2 visits a year then. The recommendations of the french health ministry (HAS), the frequency of visits may be increased according to the patient's progress. Follow-up visits of patients after bariatric surgery will be performed by physicians or surgeons of the multidisciplinary team responsible for the care of the patient (digestive and reconstructive surgery, anesthesiology, endocrinology, medical imaging, gastroenterology, immunology and physiology) . It will be insured for life, obesity is a chronic disease and because of the risk of late complications.
922 studies on the registry are indexed under Obesity, Morbid; 172 are open to participants now.
This study's planned enrollment of 750 is above the median of 60 across 590 interventional studies indexed under Obesity, Morbid.
Browse Obesity, Morbid studies →University Hospital, Montpellier is the lead sponsor of 1,244 studies on the registry; 225 are open to participants now.
Counted across the registry records on this site, refreshed daily.
Exclusion Criteria:
all of the current bariatric surgeries are allowed in this prospective cohort study
Procedure: Bariatric surgery
all of the current bariatric surgeries are allowed in this prospective cohort study
Assessment of the long-term efficiency of bariatric surgery on weight loss
Assessment of weight loss
Time frame: Change from intervention to 5 years
Assessment of the long-term efficiency of bariatric surgery on diabetes
Assessment of blood glucose, HbA1c and diabetes medications
Time frame: Change from intervention to 5 years
Assessment of the long-term efficiency of bariatric surgery on High Blood Pressure
Assessment of Systolic Blood Pressure and blood pressure medications
Time frame: Change from intervention to 5 years
Assessment of the long-term efficiency of bariatric surgery on dyslipidemia
Assessment of cholesterolemia and triglyceridemia and dyslipidemia medications
Time frame: Change from intervention to 5 years
Assessment of the long-term efficiency of bariatric surgery on rheumatism
Assessment of rheumatism medications
Time frame: Change from intervention to 5 years
Assessment of the long-term efficiency of bariatric surgery on respiratory pathologies
Assessment of respiratory pathologies medications
Time frame: Change from intervention to 5 years
Assessment of the long-term efficiency of bariatric surgery on sleep apnea syndrome
polysomnography tests
Time frame: Change from intervention to 3 months
Assessment of the long-term efficiency of bariatric surgery on quality of life
Assessment of quality of life questionnaires (SF36 and BAROS)
Time frame: Change from intervention to 5 years
Assessment of medico-economic impact of bariatric surgery
Comparison of health insurance data
Time frame: Change from intervention to 5 years
Assessment of mortality of bariatric surgery
Assessment of the date of death
Time frame: Change from intervention to 5 years
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University Hospital, Montpellier