NCT07345429Active, not recruiting
One-Year Outcomes After Conversion Bariatric Surgery
ONE-YEAR OUTCOMES OF ANTHROPOMETRIC, BIOCHEMICAL, AND NUTRITIONAL PARAMETERS AFTER CONVERSION BARIATRIC SURGERY
Source: ClinicalTrials.gov · Last updated 3 Feb 2026
Brief summary (registry, in English)
Obesity is a growing global public health problem, and bariatric surgery is currently the most effective treatment for achieving sustained weight loss and improving obesity-related comorbidities. However, a subset of patients experience inadequate weight loss or weight regain following primary bariatric surgery, which may lead to the recurrence of metabolic complications and reduced quality of life. In such cases, conversion bariatric surgery, defined as the surgical conversion from one bariatric procedure to another, is considered an important therapeutic option. Despite the increasing number of conversion procedures, comprehensive longitudinal data evaluating anthropometric, biochemical, and nutritional outcomes after conversion bariatric surgery remain limited. This study aims to prospectively evaluate individuals undergoing conversion bariatric surgery due to weight regain following primary bariatric surgery. Anthropometric measurements, biochemical parameters, and nutritional status will be assessed preoperatively and at 1 year after surgery. By evaluating weight loss outcomes together with metabolic and nutritional changes, this study seeks to provide clinically relevant evidence to guide postoperative follow-up strategies, optimize nutritional management, and support multidisciplinary care in patients undergoing conversion bariatric surgery.
- Status (registry)
- Active, not recruiting
- Study type
- Observational
- Enrollment
- 14 (estimated)
- First submitted
- 17 Dec 2025
- Start date
- 12 Nov 2024
- Primary completion date
- 10 Jan 2026
- Lead sponsor
- Medipol University
- Diseases
- Obesity
- NCT number
- NCT07345429
What you commit to
- Study type: Observational
- Planned participants: 14
- From 12 Nov 2024 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 infection
- Comorbid conditions that could limit treatment efficacy or compromise safety
Other
- Pregnancy or lactation
- Participation in professional athletic activity
Who the study is looking for
- Adults aged 18-45 years
- Previously underwent bariatric surgery
- Subsequently underwent conversion bariatric surgery due to suboptimal clinical response
- Suboptimal clinical response defined as either:
- Suboptimal Clinical Response (SCR): maximum total weight loss (TWL%) of \<20% within 18 months after metabolic and bariatric surgery
- Recurrent Weight Gain (RWG): regaining \>30% of initial postoperative weight loss after achieving initial weight reduction
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 | Osmangazi | Turkey (Türkiye) | Unknown status |
This page is information, not medical advice. Discuss any trial with your doctor.