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  • Title: The effects of short-term lansoprazole therapy on Helicobacter pylori infection and antral gastritis in duodenal ulcer patients.
    Author: Jhala NC, McFarland MM, Brightman SA, Morale B, Rubin W, Atkinson BF.
    Journal: Am J Gastroenterol; 1995 Oct; 90(10):1824-8. PubMed ID: 7572902.
    Abstract:
    BACKGROUND/AIMS: Lansoprazole is a new potent proton pump inhibitor that exhibits activity against Helicobacter pylori in vitro. This study endeavored to determine the effects of 4 wk of lansoprazole therapy upon H. pylori infection and antral gastritis in duodenal ulcer patients and to determine the relationship of the gastritis with Helicobacter infection and with ulcer activity. METHODS: Satisfactory antral biopsies were obtained from 119 duodenal ulcer patients before and after 4 wk of therapy with lansoprazole, ranitidine, or placebo. Sections were scored blindly for degree of active and chronic inflammation and extent of H. pylori infection. RESULTS: Four weeks of lansoprazole (30 mg daily) or ranitidine (300 mg daily) therapy produced a significant decrease in H. pylori infection. The reduction of H. pylori infection, but not ulcer healing per se, correlated with the decrease in active and chronic antral inflammation. Reduction of H. pylori infection, however, did not improve the good ulcer-healing rates already achieved at 4 wk by potent acid inhibition. CONCLUSIONS: Lansoprazole exhibits activity against H. pylori in vivo. Short-term improvement in antral gastritis is affected by reduction of H. pylori infection but not by ulcer healing.
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