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NCT06781229Recruiting

Periodontal Microbiota of Patients Candidates for Bariatric Surgery With Body Mass Index Greater Than 30

Non-interventional Study Exploring the Composition of the Periodontal Microbiota of Patients With Body Mass Index Greater Than 30 That Are Candidates for Bariatric Surgery

Source: ClinicalTrials.gov · Last updated 8 May 2026

Brief summary (registry, in English)

The goal of this observational study is to compare the microbiological composition of the periodontal plaque of obese people undergoing bariatric surgery according to their Body Mass Index. The main question it aims to answer is: Does obese patients have different microbiote according to their obesity? Obesity being classified in two groups : * group "obesity" for a BMI between 30 and 35 * versus "morbid obesity" group with a BMIabove 35. Participants who are scheduled to undergo bariatric surgery as part of their regular medical care will answer questions about their quality of life, hygiene habits, and saliva and periodontal samples will be taken.

Status (registry)
Recruiting
Study type
Observational
Enrollment
170 (estimated)
First submitted
13 Jan 2025
Start date
3 Feb 2025
Primary completion date
3 Feb 2028
Lead sponsor
University Hospital, Toulouse
Diseases
Obesity
NCT number
NCT06781229

What you commit to

  • Study type: Observational
  • Planned participants: 170
  • From 3 Feb 2025 to the primary completion date, 3 Feb 2028
  • 1 site in 1 country
  • Visits and tests: ask the trial team, the registry does not list them

Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.

Who cannot take part

Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.

Prior treatment

  • Having taken antibiotics, prebiotics or probiotics in the month prior to inclusion (this has an influence on the composition of the patient's microbiota),
  • For whom oral surgery is planned (surgery for benign or malignant tumours of the maxillary and mandibular bone bases), or with a history of oral surgery in the month prior to inclusion,

Lab values

  • At risk of infection (existence of one or more of the following known chronic infectious diseases: HIV, HBV, HCV and mononucleosis) and/or chronic renal insufficiency (creatinine clearance \< 60ml/min),

Other

  • Alcohol consumption \>30g/d (men) or 20g/d (women),
  • During pregnancy or breastfeeding,
  • Patients with a general pathology that contraindicates the performance of diagnostic procedures such as periodontal probing (patients at high risk of infective endocarditis according to the ANSM).
  • Totally edentulous patients

Who the study is looking for

  • BMI greater than or equal to 30
  • Be on the list of patients scheduled for bariatric surgery,
  • Be able to receive information about the study and understand the information form in order to take part in the study. This implies mastering the French language,

Age in the registry: 18 years to - · Sex: All · Does not accept healthy volunteers

Full criteria on ClinicalTrials.gov

Sites (1)

Sites in registry order. Pick your city on the disease page to sort them by distance.

SiteCityCountrySite status
University Hospital of Toulouse
Coordinator of this site? Confirm its status
ToulouseFranceRecruiting

This page is information, not medical advice. Discuss any trial with your doctor.