Life sciences · Observational Study
ClinicalTrials.gov · October 28, 2026
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Observational Study.
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Registry record from ClinicalTrials.gov (NCT07901777). This is a study registration, not published results. Lead sponsor: Yuzuncu Yil University. Recruitment status: RECRUITING. Study type: OBSERVATIONAL. Enrollment: 200 participants (ESTIMATED). Conditions: Obesity & Overweight. Interventions: DRUG: GLP-1 Receptor Agonist Therapy; PROCEDURE: Laparoscopic Sleeve Gastrectomy. Primary outcome measures: Percentage of Total Body Weight Loss at 24 Months , 24 months after GLP-1 receptor agonist treatment initiation or sleeve gastrectomy.. Brief summary: This observational study will compare weight loss over two years in adults receiving GLP-1 receptor agonist medications with weight loss in adults who previously underwent laparoscopic sleeve gastrectomy, an operation that reduces the size of the stomach. Adults starting GLP-1 medications as part of their usual care will be followed for 24 months. Their results will be compared with existing medical records of adults who underwent sleeve gastrectomy at the same center. Treatment decisions will be made by patients and their treating clinicians as part of routine care, rather than assigned by the study. The main outcome is the percentage of starting body weight lost at 24 months. The study will also assess weight changes at earlier visits, medication side effects, treatment continuation and reasons for stopping treatment, and changes in weight-related health conditions. The groups will be matched using baseline characteristics to make the comparison more balanced.