alexa Twice a day quadruple therapy for the first-line treatment of Helicobacter pylori in an area with a high prevalence of background antibiotic resistance.
Pharmaceutical Sciences

Pharmaceutical Sciences

Pharmaceutica Analytica Acta

Author(s): Kksal AS, Onder FO, Torun S, Parlak E, Sayilir A,

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Abstract BACKGROUND/AIMS: Bismuth-containing quadruple therapy given four times a day is effective in the first-line treatment of Helicobacter pylori. We aimed to investigate whether twice daily posology could eradicate H. pylori at a comparable rate in an area with a high prevalence of antibiotic resistance. MATERIALS AND METHODS: The study group consisted of 90 patients with treatment naïve H. pylori. Patients were randomized to BOMT1 group (Bismuth citrate 2 x 600 mg, omeprazole 2 x 20 mg, metronidazole 2 x 500 mg, tetracycline 2 x 500 mg; for 14 days) and BOMT2 group (Bismuth citrate 2 x 600 mg, omeprazole 2 x 20 mg, metronidazole 3 x 500 mg, tetracycline 4 x 500 mg; for 14 days). H. pylori eradication was assessed by both C14-urea breath test and stool antigen test at least 8 weeks after treatment. RESULTS: Demographic characteristics and endoscopy findings of the groups were similar. Eighty-two patients completed the study (BOMT1= 38 and BOMT2 = 44) including H. pylori eradication assessment. The eradication rates determined by PP and ITT analyses were 86.8\% and 733\% for BOMT1 group, 90.1\% and 88.9\% for BOMT2 group, respectively. BOMT1 was found to be non-inferior to BOMT2 treatment. Patients in BOMT2 group had a significantly higher rate of drug associated adverse events than BOMT1 (34.1\% vs 9.3\%; p = 0.008). CONCLUSIONS: Twice a day quadruple therapy is as effective as four times a day quadruple therapy in the first line treatment of H. pylori in a country with high resistance to metronidazole and clarithromycin and is more tolerable.
This article was published in Acta Gastroenterol Belg and referenced in Pharmaceutica Analytica Acta

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