Comparison of Helicobacter pylori eradication rate of levofloxacin-containing quadruple therapy with levofloxacin-containing triple therapy in patients failed the standard triple therapy
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Summary
Objective: After failure of PPI-clarithromycin-amoxicillin triple therapy, a levofloxacin containing triple or quadruple therapy are recommended as a second-line treatment. There have been no studies to compare the efficacy of levofloxacin-containing quadruple therapy with levofloxacin-containing triple therapy for the treatment of Helicobacter pylori (H. pylori) infection after failure of PPI-clarithromycin-amoxicillin triple therapy in our country. Therefore, we conducted this study to compare the eradication rate, adverse events and compliance of two regimens. Subject and method: The study was carried out on 128 patients who fail initial PPI-clarithromycin-amoxicillin triple therapy. 62 patients received a levofloxacin-based quadruple therapy, and 66 patients received a levofloxacin-based triple therapy. Four to eight weeks after completion of therapy, H. pylori status was rechecked by clotest or C13 urea-breath test. The primary outcome was the eradication rate in the intention-to-treat (ITT) and per protocol (PP) analysis. Result: The eradication rates of the levofloxacin containing quadruple therapy was higher than that of levofloxacin containing triple therapy (90.0% vs 83.1% using PP analysis and 82.2% vs 77.8%, using ITT analysis, p<0.05), side effects occurred in patients treated by two regimens were not different (p>0.05). The compliance rate of 90% or greater of two regimens were more than 90%. Conclusion: Helicobacter pylori eradication rate of levofloxacin containing quadruple regimen was higher than that of levofloxacin containing triple regimen in patients had failed PPI-clarithromycin-amoxicillin triple therapy
Keywords: Levoflocaxin containing triple regimen, levoflocaxin containing quadruple regimen, eradication, Helicobacter pylori infection.
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References
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