A randomized trial comparing seven-day ranitidine bismuth citrate and clarithromycin dual therapy to seven-day omeprazole, clarithromycin and amoxicillin triple therapy for the eradication of Helicobacter pylori.

Autor:	Veldhuyzen van Zanten S; Dalhousie University, Department of Medicine, Halifax, Nova Scotia, Canada. Zanten@dal.ca, Chiba N, Barkun A, Fallone C, Farley A, Cockeram A, Dallaire C, Simms L, Nicholls B
Jazyk:	angličtina
Zdroj:	Canadian journal of gastroenterology = Journal canadien de gastroenterologie [Can J Gastroenterol] 2003 Sep; Vol. 17 (9), pp. 533-8.
DOI:	10.1155/2003/425293
Abstrakt:	Objective: To assess Helicobacter pylori eradication after one week dual ranitidine bismuth citrate-clarithromycin (RBC-C) or triple omeprazole, clarithromycin and amoxicillin (OCA) therapy. Methods: In this multicentre Canadian trial, H pylori-positive patients with functional dyspepsia or inactive peptic ulcer disease were randomized to open-label treatment with RBC-C (ranitidine bismuth citrate 400 mg plus clarithromycin 500 mg) or OCA (omezaprole 20 mg, clarithromycin 500 mg and amoxicillin 1000 mg), given twice a day for seven days. Treatment allocation was randomly assigned. H pylori infection was confirmed by positive 13C-urea breath test (13C-UBT). H pylori status was reassessed by UBT at least four and 12 weeks after treatment (negative: d13CO2 below 3.5 per mil). Intention-to-treat (ITT) eradication rates were determined for all patients with confirmed H pylori infection. Per protocol (PP) rate was determined for all patients treated with at least two evaluable follow-up visits. Results: Three hundred five patients were included in the ITT and 222 in the PP analysis. The ITT eradication rates were 66% for RBC-C and 78% for OCA. The PP success rates were 84% for RBC-C and 96% for OCA. The difference for both ITT 12% (95% CI 2 to 22) and PP 12% (95% CI 4 to 19) were statistically significant, P=0.030 and P=0.007, respectively. Treatment was generally well tolerated. Conclusion: The eradication rate for the seven-day dual RBC-C regimen was lower than that for OCA.
Databáze:	MEDLINE
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