Journal
JOURNAL OF DIGESTIVE DISEASES
Volume 19, Issue 11, Pages 674-677Publisher
WILEY
DOI: 10.1111/1751-2980.12679
Keywords
bismuth; Helicobacter pylori eradication; proton pump inhibitors; standard triple therapy
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Funding
- University of Malaya High Impact Research Grant [UM.C/625/1/HIR/MoE/CHAN/13/2, H-50001-A000032]
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Objective The 7-day standard triple therapy (STT) gives unacceptablly low eradication rates of Helicobacter pylori (H. pylori). We aimed to examine whether extending STT from 7 days to 14 days or adding a bismuth compound to a 7-day STT would result in better eradication rates. Methods H. pylori-positive patients were assigned to Group A (7-day STT; rabeprazole 20 mg twice daily, amoxicillin 1 g twice daily, and clarithromycin 500 mg twice daily, for 7 days), Group B (7-day STT with bismuth; rabeprazole 20 mg twice daily, amoxicillin 1 g twice daily, clarithromycin 500 mg twice daily and bismuth subcitrate 240 mg twice daily, for 7 days) and Group C (14-day STT; rabeprazole 20 mg twice daily, amoxicillin 1 g twice daily, and clarithromycin 500 mg twice daily for 14 days). Eradication was tested using C-13-UBT at least 4 weeks after the completion of therapy. Results A total of 364 patients were recruited. In the intention-to-treat analysis, eradication rates were 79.3% (96/121; 95% confidence interval [CI] 71.3-85.6%) for 7-day STT, 81.7% (98/120; 95% CI 73.8-87.6%) for 7-day STT with bismuth, and 88.6% (109/123; 95% CI 81.8-93.1%) for 14-day STT, respectively. Statistical significance was achieved between the 7-day and the 14-day STT treatment (P = 0.048). Conclusions Adding bismuth to the 7-day STT did not result in an increase in the eradication rate. Extending the STT to 14 days, however, achieved a significantly higher eradication rate. Nevertheless, this did not achieve the targeted 90% eradication rate on intention-to-treat analysis.
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