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NCT07038148Completed

Single-Stage Stapled Conversion of Gastric Bypass to Sleeve Gastrectomy

Exploring the Efficacy of Single Stage Stapled Conversion of Gastric Bypass to Sleeve Gastrectomy, More Leak?

Source: ClinicalTrials.gov · Last updated 3 Nov 2026

Brief summary (registry, in English)

Some patients who have had a gastric bypass (Roux-en-Y gastric bypass or one anastomosis gastric bypass) develop long-term problems such as nutritional deficiencies, intractable dumping syndrome, retrograde intussusception or weight regain, and some cannot afford the lifelong vitamin supplements the bypass requires. When these problems do not respond to non-surgical treatment, the bypass can be reversed to normal anatomy, but many patients refuse reversal because they fear regaining weight. Converting the bypass to a sleeve gastrectomy is an alternative that restores food passage through the duodenum while keeping a restrictive operation. This single-arm study evaluates the efficacy, safety and patient outcomes of single-stage laparoscopic stapled conversion of gastric bypass to sleeve gastrectomy in adults at Kasr Al-Ainy hospitals, Cairo University. Patients are followed for 6 months after surgery for nutritional status, weight regain, quality of life, reflux (GERD) symptoms and postoperative complications, including leak.

Status (registry)
Completed
Study type
Interventional
Enrollment
11 (actual)
First submitted
25 Jan 2025
Start date
18 Feb 2025
Primary completion date
1 Oct 2026
Lead sponsor
Kasr El Aini Hospital
Diseases
Obesity
NCT number
NCT07038148

What you commit to

  • Study type: Interventional
  • Participants enrolled: 11
  • From 18 Feb 2025 to the primary completion date, 1 Oct 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

  • Uncontrolled systemic disease
  • Active psychological disorder

Other

  • Reversal of gastric bypass to normal anatomy
  • Intraoperative technical difficulties preventing conversion of gastric bypass to sleeve gastrectomy

Who the study is looking for

  • Age 18 to 70 years
  • Adult patients with a previous gastric bypass undergoing single-stage laparoscopic stapled conversion of gastric bypass to sleeve gastrectomy

Age in the registry: 18 years to 70 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
Kasr Alaini hospital
Coordinator of this site? Confirm its status
CairoEgyptUnknown status

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