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Effects of H. Pylori Eradication on the Gastric Preneoplastic Lesion and Neoplasm After ESD

Helicobacter Pylori Infection Clinical Trial

Official title:
Effect of Helicobacter Pylori Eradication on Glandular Atrophy and Metachronous Cancer in Patients Undergoing Endoscopic Mucosal Resection for Gastric Cancer

Clinical Trial Summary

This study evaluates whether Helicobacter pylori eradication improves precancerous lesions including glandular atrophy and intestinal metaplasia as well as metachronous cancers or dysplasias after endoscopic mucosal resection for gastric cancer.

Clinical Trial Description

Helicobacter pylori is a primary etiological agent leading to chronic gastritis and peptic ulcer. The organism is also associated with gastric cancer in epidemiological studies. However detailed mechanism of carcinogenesis remains unknown. Histolopathological studies indicate that chronic H. pylori infection progresses over decades through stages of chronic gastritis, atrophy, intestinal metaplasia, dysplasia and cancer. Gastric atrophy and intestinal metaplasia are considered as precancerous lesions, but whether H. pylori eradication improves these lesions and prevents metachronous gastric cancer is controversial. And the issue has not been evaluated in gastric cancer patients. However, despite the conflicting evidences from two open labelled randomized controlled trials, current guidelines from various regions recommend H. pylori eradication treatment in patients who were treated for gastric cancer by surgically or endoscopically. Thus, it is important to evaluate whether H. pylori eradication can improve known precancerous lesion, i.e. glandular atrophy and intestinal metaplasia in gastric cancer patients. Such histological improvement can eventually reduce secondary gastric cancer development and provide evidence for current guidelines. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT02407119
Study type Interventional
Source National Cancer Center, Korea
Contact
Status Active, not recruiting
Phase Phase 3
Start date June 2003
Completion date June 2030
View Details
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