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Study of Proton Pump Inhibitors (PPI) to Prevent Strictures After Gastric Bypass Surgery

This study has been withdrawn prior to enrollment.
(Insufficient enrollment)
Information provided by:
Weill Medical College of Cornell University Identifier:
First received: August 7, 2006
Last updated: October 31, 2016
Last verified: October 2016
The purpose of this study is to determine whether suppressing acid production by administration of daily proton pump inhibitors in the early post-operative period will reduce the gastrojejunal anastomosis stricture rate in patients undergoing laparoscopic gastric bypass surgery for morbid obesity.

Condition Intervention Phase
Anastomotic Stricture
Morbid Obesity
Drug: Esomeprazole
Phase 4

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double Blind (Participant, Care Provider, Investigator, Outcomes Assessor)
Primary Purpose: Prevention
Official Title: Randomized, Prospective, Double-blind Trial of PPI vs Placebo in Prevention of Gastrojejunal Strictures After Laparoscopic Roux-en-Y Gastric Bypass for Morbid Obesity

Resource links provided by NLM:

Further study details as provided by Weill Medical College of Cornell University:

Primary Outcome Measures:
  • Gastrojejunal stricture [ Time Frame: 6 months after surgery ]

Secondary Outcome Measures:
  • Gastrojejunal ulcer [ Time Frame: 6 months after surgery ]

Enrollment: 0
Study Start Date: January 2008
Study Completion Date: July 2011
Primary Completion Date: January 2011 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: 1
Nexium group
Drug: Esomeprazole
Esomeprazole 40mg once daily orally.
Other Name: Nexium
Drug: Esomeprazole
Esomeprazole 40mg once daily orally
Other Name: Nexium

Detailed Description:

Laparoscopic Roux-en-Y gastric bypass (LYRGB) has been shown to be a safe and effective procedure for the treatment of morbid obesity. However, a common early complication of LYRGB is stricture at the gastrojejunal (GJ) anastomosis, occurring in 4% - 27% of patients, usually within the third post-operative month. This complication usually presents with progressive dysphagia leading to daily vomiting. Endoscopic balloon dilation is the treatment of choice for this complication, and multiple dilations are often required to provide complete resolution.

The etiology of GJ anastomotic strictures is unknown and is probably multi-factorial. Some investigators hypothesize that ischemia or non-ischemia-related excessive scar formation is the cause of stricture. The method of construction of the anastomosis as well seems to have an impact, as circular stapled anastomoses may have higher rates of stricture than linear staplers or completely hand-sewn anastomoses. The route of the Roux limb (antecolic vs retrocolic) does not appear to affect this complication.

Several investigators have demonstrated little acid production in the gastric bypass pouch. Despite this data, acid secretion has been hypothesized as a predominant factor in the development of GJ stricture. This hypothesis is supported in part by the frequent finding of ulcers at the site of stricture in up to 55% of patients. The purpose of this study is to determine whether suppressing acid production by administration of daily proton pump inhibitors in the early post-operative period will reduce GJ anastomosis stricture rate.



Ages Eligible for Study:   18 Years to 60 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • Any patient who satisfies the requirements of the Weill-Cornell Weight Loss Surgery program to undergo laparoscopic Roux-en-Y gastric bypass surgery as treatment for morbid obesity.

Exclusion Criteria:

  • Patients with a history of ulcer disease, patients taking chronic acid suppression medicine, and patients taking NSAIDS.
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Please refer to this study by its identifier: NCT00361985

United States, New York
Weill Medical College of Cornell Unversity
New York, New York, United States, 10021
Sponsors and Collaborators
Weill Medical College of Cornell University
Principal Investigator: Gregory F. Dakin, MD Weill Medical College of Cornell University
  More Information

Responsible Party: Gregory Dakin, MD, Weill Cornell Medical College Identifier: NCT00361985     History of Changes
Other Study ID Numbers: 0511008254
Study First Received: August 7, 2006
Last Updated: October 31, 2016

Keywords provided by Weill Medical College of Cornell University:
Gastric bypass
Anastomotic stricture
Morbid obesity
Bariatric surgery

Additional relevant MeSH terms:
Obesity, Morbid
Constriction, Pathologic
Nutrition Disorders
Body Weight
Signs and Symptoms
Pathological Conditions, Anatomical
Proton Pump Inhibitors
Anti-Ulcer Agents
Gastrointestinal Agents
Enzyme Inhibitors
Molecular Mechanisms of Pharmacological Action processed this record on May 25, 2017