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CLINICAL TRIAL
COMPARATIVE STUDY
JOURNAL ARTICLE
RANDOMIZED CONTROLLED TRIAL
RESEARCH SUPPORT, U.S. GOV'T, P.H.S.
Eradication of Helicobacter pylori infection with proton pump-based triple therapy in patients in whom bismuth-based triple therapy failed.
Journal of Clinical Gastroenterology 1999 July
To study the effects of treatment of Helicobacter pylori infection in a hyperendemic population, 143 infected patients from the region of Nariño, Colombia, were treated for 2 weeks with clarithromycin (500 mg twice a day), amoxicillin (1 g twice a day), and either lansoprazole (30 mg twice a day) or omeprazole (30 mg twice a day). All patients belong to a low socioeconomic strata, had multifocal atrophic gastritis documented by gastric biopsies, and had been treated previously and unsuccessfully for 2 weeks with bismuth subsalicylate (262 mg four times a day), amoxicillin (500 mg three times a day), and metronidazole (400 mg three times a day). 13C-urea breath tests were performed 6, 12, 24, and 60 weeks after completing therapy. The 13C-urea breath test was negative in 79.7% of patients 1 month after finishing therapy, and in 69.2% of patients 1 year after finishing treatment. There were no differences in eradication rates between patients treated with omeprazole versus lansoprazole. Dyspepsia symptoms decreased from 74% in patients at baseline to 19% at the time of finishing treatment. In low-socioeconomic status populations with hyperendemic infection, triple therapy using omeprazole or lansoprazole plus clarithromycin and amoxicillin is an effective alternative when previous standard bismuth-based triple therapy has failed.
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