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NCT07643376Not yet recruiting

Evaluation of Metabolic Parameters, Intestinal Permeability and Gastrointestinal Symptoms After Bariatric Surgery in Body Weight Management

Evaluation of Postoperative Metabolic Parameters, Intestinal Permeability and Gastrointestinal Symptoms in Body Weight Management After Laparoscopic Sleeve Gastrectomy

Source: ClinicalTrials.gov · Last updated 11 Jun 2026

Brief summary (registry, in English)

This study aims to evaluate the changes in metabolic parameters, intestinal permeability, and gastrointestinal symptoms in individuals who have undergone bariatric surgery (Laparoscopic Sleeve Gastrectomy - LSG) for obesity treatment. Obesity is a chronic disease associated with serious health complications including type 2 diabetes, hypertension, cardiovascular disease, and metabolic disorders. Bariatric surgery is currently the most effective treatment method for morbid obesity. However, monitoring patients after surgery in terms of metabolic health, gut permeability, and gastrointestinal symptoms is crucial for long-term success. In this study, 40 volunteers (aged 19-50) who have undergone LSG surgery within the last month will be followed for 6 months. At the beginning of the study and 6 months later, the following will be assessed: * Metabolic parameters: fasting blood glucose, total cholesterol, triglycerides, high-density lipoprotein (HDL), low-density lipoprotein (LDL), very low-density lipoprotein (VLDL) cholesterol, and insulin levels * Intestinal permeability markers: zonulin, secretory immunoglobulin A (IgA), and lipopolysaccharide (LPS) levels * Gastrointestinal symptoms: assessed using the Gastrointestinal Symptom Rating Scale (GSRS) * Anthropometric measurements: body weight, height, waist and hip circumference, BMI * Nutritional intake: 3-day dietary records The study will be conducted at Bursa Yıldırım Doruk Hospital, General Surgery Clinic. Results will contribute to understanding the relationship between bariatric surgery and gut health, potentially helping to prevent postoperative complications.

Status (registry)
Not yet recruiting
Study type
Observational
Enrollment
40 (estimated)
First submitted
20 May 2026
Start date
1 Jul 2026
Primary completion date
1 Jan 2027
Lead sponsor
Toros University
Diseases
Obesity
NCT number
NCT07643376

What you commit to

  • Study type: Observational
  • Planned participants: 40
  • From 1 Jul 2026 to the primary completion date, 1 Jan 2027
  • 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

  • Currently using probiotics, antibiotics, or fiber supplements

Other illness

  • Has an inflammatory disease
  • Has a psychiatric disorder

Age

  • Outside the age range of 19-50 years

Other

  • Did not undergo or is not planned to undergo LSG
  • Did not sign the informed consent form
  • BMI \<40 kg/m² or BMI \<35 kg/m² without obesity-related comorbidities
  • Smoker or alcohol dependent

Who the study is looking for

  • Underwent Laparoscopic Sleeve Gastrectomy (LSG) within the last 1 month
  • Aged between 19-50 years
  • BMI ≥40 kg/m² or BMI ≥35 kg/m² with obesity-related comorbidities
  • Signed informed consent form
  • Non-smoker and non-alcohol dependent

Age in the registry: 19 years to 50 years · 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
Bursa Yıldırım Doruk Hospital
Coordinator of this site? Confirm its status
BursaTurkey (Türkiye)Unknown status

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