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  • Title: Four-day, twice daily, quadruple therapy with amoxicillin, clarithromycin, tinidazole and omeprazole to cure Helicobacter pylori infection: a pilot study.
    Author: Calvet X, Titó L, Comet R, García N, Campo R, Brullet E.
    Journal: Helicobacter; 2000 Mar; 5(1):52-6. PubMed ID: 10672052.
    Abstract:
    BACKGROUND: The best regimen for the treatment of Helicobacter pylori infection has yet to be defined. Four-day quadruple therapy with tetracycline, metronidazole, bismuth, and a proton pump inhibitor has been shown to obtain a very high cure rate. However, the fact that it must be taken four times daily may interfere with compliance. The objective of the study was to test the efficacy and tolerability of a new 4-day therapy with 4 drugs taken every 12 hours to cure H. pylori infection. Patients and Methods. Fifty-six consecutive patients with peptic ulcer disease and H. pylori infection were treated with an oral 4-day course with omeprazole (20 mg/12 hours), clarithromycin (500 mg/12 hours), amoxicillin (1 g/12 hours) and tinidazole (500 mg/12 hours). Efficacy of the treatment was determined at least 2 months after therapy either by biopsy (in the case of gastric ulcer) or by 13C-urea breath test. A second breath test was performed at least 6 months after therapy. RESULTS: Two patients were lost to follow-up. Forty-nine of the remaining 54 patients were cured at the first control [intention-to-treat cure rate: 87.5% (CI 95% 75-94%); per protocol cure rate: 90.7% (CI 95% 81-98%)]. Forty-three of these 49 cured patients returned for a second 13C urea breath-test at 6-12 months. Two of them were not cured, giving a long-term cure rate of 85.5% per protocol and 73.2% by intention-to-treat. Compliance was good, although 25 patients had mild side effects. CONCLUSION: This particular four-day therapy is well tolerated, easy to follow, and achieves an acceptably high cure rate.
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