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  • Title: Randomized clinical trial comparing 10-day sequential, 7-day concomitant and 7-day standard triple therapies for Helicobacter pylori eradication.
    Author: Tepeš B, Vujasinović M, Šeruga M, Stefanovič M, Forte A, Jeverica S.
    Journal: Eur J Gastroenterol Hepatol; 2016 Jun; 28(6):676-83. PubMed ID: 26862930.
    Abstract:
    OBJECTIVES: To compare triple therapy with sequential and concomitant therapies directly in a head-to-head comparison in Helicobacter pylori-infected patients. DESIGN: Patients were allocated randomly as follows: a triple therapy with esomeprazole (20 mg), amoxicillin (1000 mg) and clarithromycin (500 mg) twice daily for 7 days; a sequential therapy with 5 days of esomeprazole (20 mg) and amoxicillin (1000 mg) twice daily, followed by 5 days of esomeprazole (20 mg), clarithromycin (500 mg) and metronidazole (400 mg) twice daily; or a concomitant therapy consisting of esomeprazole (20 mg), amoxicillin (1000 mg), clarithromycin (500 mg) and metronidazole (400 mg) twice daily for 7 days. RESULTS: A total of 356 consecutive patients were included. The eradication rates for the triple, sequential and concomitant therapies were 83.6% [95% confidence interval (CI) 76.9-90.4%], 94.2% (95% CI 90.0-98.4%) and 91.7% (95% CI 86.7-96.6%), respectively, in the intention-to-treat population. The differences were significant only between triple and sequential therapies (P=0.01). The primary resistance rates to amoxicillin, clarithromycin and metronidazole were 0.6, 10.5 and 25.9%, respectively. Concomitant therapy was significantly better than triple therapy in cases with clarithromycin resistance (P=0.01). CONCLUSION: Ten-day sequential therapy was significantly better than 7-day triple therapy in a clinical setting with low rates of clarithromycin and dual resistance. Concomitant therapy was significantly better than standard triple therapy in the subgroup of patients with clarithromycin-resistant strains.
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