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Gisbert, J.P. et al.

Gisbert, González, Calvet, García, López, Roqué, Gabriel, Pajares,

Proton pump inhibitor, clarithromycin and either amoxycillin or nitroimidazole: a meta-analysis of eradication of Helicobacter pylori.

AIM: To perform a meta-analysis of studies comparing twice daily, one-week triple therapy with a proton pump inhibitor, clarithromycin (C) and amoxycillin (A) (PCA) vs. those using proton pump inhibitor, clarithromycin and a nitroimidazole (N) (PCN) for H. pylori eradication. REVIEW METHODS: Selection criteria: Comparative randomized trials of PCA vs. PCN were included. Data sources: PubMed database and abstracts from congresses until September 1999. Statistics: Meta-analysis was performed combining the Odds Ratios (OR) of the individual studies in a global OR (Peto method) both on an intention-to-treat (ITT) and on a per protocol (PP) basis. RESULTS: Twenty-two studies fulfilled the inclusion criteria. Eighteen studies reported ITT and 20 PP analysis. Mean H. pylori eradication rates were 81% (95% CI: 79-83%) ITT, and 84% (82-86%) PP with PCA, and 81% (78-83%) ITT and 84% (82-86%) PP with PCN; the odds ratio for the effect of PCA vs. PCN was 1 (0.83-1.22) on an ITT, and 0.98 (0.8-1.2) on a PP basis. Subanalysis showed that mean H. pylori eradication efficacy with PC(250 b.d.)A was 81% (78-85%) ITT, vs. 86% (83-89%) with PC(250 b.d.)N. The odds ratio for this comparison was 0.68 (0.48-0.98). Finally, when comparing PC(500 b.d. )A against PC(250 b.d.)N ITT cure rates were 77% (74-80%), and 75% (72-78%) with an odds ratio of 1.18 (0.93-1.5). CONCLUSION: Overall, one-week combination regimens of PCA and PCN present similar H. pylori eradication efficacy. Nevertheless, the PCN regimen obtains significantly better results when using low doses of C (250 mg b.d.).[1]

References

Proton pump inhibitor, clarithromycin and either amoxycillin or nitroimidazole: a meta-analysis of eradication of Helicobacter pylori. Gisbert, J.P., González, L., Calvet, X., García, N., López, T., Roqué, M., Gabriel, R., Pajares, J.M. Aliment. Pharmacol. Ther. (2000) [Pubmed]

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