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  • Title: Efficacy and Safety of Vonoprazan-Amoxicillin Dual Regimen With Varying Dose and Duration for Helicobacter pylori Eradication: A Multicenter, Prospective, Randomized Study.
    Author: Peng X, Yao JY, Ma YQ, Li GH, Chen HW, Wan Y, Liang DS, Zhang M, Zhi M.
    Journal: Clin Gastroenterol Hepatol; 2024 Jun; 22(6):1210-1216. PubMed ID: 38309492.
    Abstract:
    BACKGROUND & AIMS: Previous studies confirm vonoprazan-amoxicillin effectiveness for Helicobacter pylori. This study aims to investigate vonoprazan with varying amoxicillin dose and duration. METHODS: This multicenter, prospective, randomized controlled, noninferiority trial enrolled patients with treatment naive H pylori infection from 5 clinical centers. Eligible participants were randomly assigned to H-VA-10 (vonoprazan 20 mg twice a day (b.i.d.) + amoxicillin 750 mg 4 times a day, 10 days), L-VA-10 (vonoprazan 20 mg b.i.d. + amoxicillin 1000 mg b.i.d, 10 days), and H-VA-14 (vonoprazan 20 mg b.i.d + amoxicillin 750 mg 4 times a day, 14 days) in a 1:1:1 ratio. The eradication rate was assessed using the 13C-urea breath test at least 28 days after treatment. RESULTS: Of the 623 eligible patients, 516 patients were randomized. In both the intention-to-treat and per-protocol analyses, eradication rates were comparable between H-VA-10 and H-VA-14 groups (86.6% vs 89.5% and 90.9% vs 94.5%, P = .021 and .013 for noninferiority, respectively). However, eradication rates were significantly lower in the L-VA-10 group than the H-VA-14 group (79.7% vs 89.5% and 82.0% vs 94.5%, P = .488 and .759, respectively). Rates of study withdrawal, loss to follow-up, and adverse events were similar across study groups. CONCLUSIONS: H-VA-10 and H-VA-14 regimens provide satisfactory efficacy for H pylori infection, and the L-VA-10 regimen was inferior. CLINICALTRIALS: gov number: NCT05719831.
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