Background: A blister-packaged drug might be useful to enhance the eradication of Helicobacter pylori. We investigated the effect of a blister-packaged drug for H. pylori eradication. Methods: We treated 1,758 patients with H. pylori infections and evaluated the successful eradication rate in patients who underwent first-line eradication between January 2013 and May 2018. Treatments included a conventional proton pump inhibitor (PPI) blister-packaged drug containing lansoprazole or rabeprazole with clarithromycin (CAM) and amoxicillin (AC), vonoprazan (VPZ) with CAM and AC in a separate tablet, or a VPZ blister-packaged drug (VONOSAP) containing VPZ with CAM and AC, with all drugs given twice daily for 7 days. Results: Finally, we evaluated 1,263 patients (conventional PPI: n = 644, VPZ: n = 326, and VONOSAP: n = 293). The overall successful eradication rates were 71.9% in the conventional PPI group, 90.2% in the VPZ group, and 92.2% in the VONOSAP group. There was a significantly lower eradication rate in the PPI group than in the VPZ and VONOSAP (p < 0.00001, p < 0.0001) groups, but there was no significant difference between the VPZ and VONOSAP groups (p = 0.4006). We enrolled a total of 256 age- and gender-matched patients in the VPZ and VONOSAP groups, and both groups had successful eradication rates of approximately 90% (89.8 vs. 90.4%, respectively, p = 0.7641). After analyzing the subgroup of patients older than 75 years, there was a significant treatment benefit of VONOSAP but not of VPZ in elderly patients (EPs). Conclusion: Triple-drug blister-packaged drugs including VPZ may improve the first-line eradication of H. pylori in EPs.

Journal Section:
Research Article
Keywords:
Helicobacter pylori, Eradication, Vonoprazan, Elderly patient
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