NCT07348822Active, not recruiting
8-Year Outcomes After Sleeve Gastrectomy
8-Year Outcomes After Sleeve Gastrectomy: Anthropometric, Biochemical, and Nutritional Evaluation
Source: ClinicalTrials.gov · Last updated 3 Feb 2026
Brief summary (registry, in English)
Obesity is a major global public health concern, and bariatric surgery is recognized as the most effective treatment for achieving sustained weight loss and improving obesity-related comorbidities. Sleeve gastrectomy (SG) is one of the most commonly performed bariatric procedures; however, long-term outcomes vary considerably among individuals. While some patients maintain satisfactory weight loss, others experience suboptimal weight loss or weight regain several years after surgery. Evidence suggests that long-term weight trajectories after SG may be influenced by metabolic changes, dietary habits, and lifestyle factors, highlighting the need for extended follow-up studies. This observational cohort study aims to evaluate the long-term outcomes of individuals who underwent sleeve gastrectomy approximately 8 years ago. Anthropometric measurements, biochemical parameters, and nutritional status will be reassessed at an 8-year follow-up visit and compared with data obtained during the preoperative period and at postoperative 6 months. By examining within-subject changes over time, this study seeks to provide insight into the long-term sustainability of weight loss after sleeve gastrectomy and to identify metabolic and nutritional factors associated with long-term outcomes.
- Status (registry)
- Active, not recruiting
- Study type
- Observational
- Enrollment
- 20 (estimated)
- First submitted
- 18 Dec 2025
- Start date
- 12 Jun 2025
- Primary completion date
- 10 Jan 2026
- Lead sponsor
- Medipol University
- Diseases
- Obesity
- NCT number
- NCT07348822
What you commit to
- Study type: Observational
- Planned participants: 20
- From 12 Jun 2025 to the primary completion date, 10 Jan 2026
- 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.
Other illness
- Presence of acute illness or active infection at the time of evaluation
- Presence of acute illness, infection, or comorbid conditions that may limit study safety or validity, including malignancy, type 1 diabetes mellitus, renal or hepatic failure, recent stroke or myocardial infarction, nephrolithiasis, drug or alcohol abuse, eating disorders, severe depression or other major psychiatric disorders, inflammatory bowel disease, cardiac arrhythmias or heart failure, respiratory failure, or chronic systemic corticosteroid therapy.
Other
- Pregnancy or lactation
- Professional athletes
Who the study is looking for
- Adults aged 18-65 years
- Patients who underwent sleeve gastrectomy approximately 8 years prior to study enrollment
- Patients with available postoperative follow-up data at 6 months, including anthropometric measurements, biochemical parameters, and nutritional status assessments
- Patients willing to participate in long-term follow-up and attend in-person evaluations
Age in the registry: 18 years to 65 years · Sex: All · Does not accept healthy volunteers
Sites (1)
Sites in registry order. Pick your city on the disease page to sort them by distance.
| Site | City | Country | Site status |
|---|---|---|---|
| Mudanya Univesity Coordinator of this site? Confirm its status | Bursa | Turkey (Türkiye) | Unknown status |
This page is information, not medical advice. Discuss any trial with your doctor.