Actively Recruiting

Phase Not Applicable
Age: 18Years - 65Years
All Genders
NCT07158008

Comparison of Nissen-Sleeve and Gastric Bypass for GERD in Obese Patients

Led by Jagiellonian University · Updated on 2025-09-05

560

Participants Needed

1

Research Sites

161 weeks

Total Duration

On this page

AI-Summary

What this Trial Is About

This randomized clinical trial aims to compare two surgical techniques for the treatment of obesity in patients who also have symptoms of gastroesophageal reflux disease (GERD). The study will compare Nissen-Sleeve Gastrectomy (N-SG)-a sleeve gastrectomy combined with a reflux-preventing procedure-to the Roux-en-Y Gastric Bypass (RYGB), which is the current standard surgical option for obese patients with GERD. Both procedures are widely used to treat severe obesity, but they differ in how they affect the digestive system and the potential for reflux control, nutritional outcomes, and future surgical options. N-SG is a newer technique that preserves the natural pathway of the gastrointestinal tract and allows standard endoscopic access to the bile ducts, which may be beneficial for long-term patient care. RYGB, on the other hand, bypasses part of the stomach and small intestine, which may lead to better reflux resolution but carries risks of nutritional deficiencies and altered anatomy. Eligible participants with obesity and GERD symptoms will be randomly assigned to receive either N-SG or RYGB. The primary goal is to evaluate whether N-SG is not inferior to RYGB in reducing GERD symptoms one year after surgery. Secondary outcomes include weight loss, quality of life, surgical complications, and changes in the hormone ghrelin, which is involved in appetite regulation. In addition, a larger control group of patients without GERD undergoing standard sleeve gastrectomy will be recruited to allow further comparisons. All participants will be followed for one year after surgery, with blood samples, questionnaires, and clinical data collected to assess both metabolic and reflux-related outcomes. This study is being conducted at the University Hospital in Kraków, Poland, and aims to improve the personalization of bariatric treatment for patients suffering from both obesity and reflux.

CONDITIONS

Official Title

Comparison of Nissen-Sleeve and Gastric Bypass for GERD in Obese Patients

Who Can Participate

Age: 18Years - 65Years
All Genders

Eligibility Criteria

Eligible

You may qualify if you...

  • Age 18 years or older
  • Written informed consent provided
  • Eligible for bariatric surgery according to national guidelines (BMI ≥ 40 kg/m² or BMI ≥ 35 kg/m² with obesity-related comorbidities)
  • For N-SG and RYGB groups: presence of symptomatic GERD defined by either regular use of proton pump inhibitors, GerdQ score > 6, or endoscopic evidence of esophagitis grade B or higher
  • For SG control group: no symptoms or history of GERD
Not Eligible

You will not qualify if you...

  • History of prior anti-reflux surgery
  • History of upper gastrointestinal tract surgery
  • Active smoking or history of nicotine use
  • Severe cardiac insufficiency (New York Heart Association Class III or IV)
  • Pregnancy or planned pregnancy during the study period
  • Any condition that interferes with study compliance or poses additional risk according to investigator

AI-Screening

AI-Powered Screening

Complete this quick 3-step screening to check your eligibility

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Trial Site Locations

Total: 1 location

1

Szpital Uniwersytecki w Krakowie

Krakow, Poland, 30-688

Actively Recruiting

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Research Team

P

Piotr Małczak, PhD, MD

CONTACT

How is the study designed?

Study Type

INTERVENTIONAL

Masking

NONE

Allocation

RANDOMIZED

Model

PARALLEL

Primary Purpose

TREATMENT

Number of Arms

3

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