The safety and effectiveness of vonoprazan-based Helicobacter pylori eradication therapy; a prospective post-marketing surveillance.

Abstract:

:Background: The safety and effectiveness of vonoprazan-based Helicobacter pylori (H. pylori) eradication therapy in routine clinical practice, and patient characteristics that influence safety and effectiveness, have not been well investigated.Methods: H. pylori-positive patients with gastric ulcer, duodenal ulcer, idiopathic thrombocytopenic purpura, history of endoscopic treatment of early gastric cancer, and gastritis were enrolled. Patients received vonoprazan 20 mg, amoxicillin (AMPC) 750 mg, and clarithromycin (CAM) 200-400 mg twice daily for 7 days for the first-line eradication. For the second-line eradication, vonoprazan, AMPC, and metronidazole (MTZ) 250 mg were administered. The incidence of adverse drug reactions (ADRs) and eradication rates were evaluated.Results: The incidences of ADRs with vonoprazan/AMPC/CAM and vonoprazan/AMPC/MTZ were 3.22% (16/497) and 1.89% (1/53), respectively. Commonly reported ADRs were diarrhea, nausea, dysgeusia, feces soft, and rash. The eradication rates of the first-line therapy and the second-line therapy were 91.24% (427/468) and 95.45% (42/44), respectively. No notable differences in ADRs and eradication rates were observed when stratified by patient demographic characteristics.Conclusion: No new safety concerns were observed, and the effectiveness of vonoprazan-based triple therapy was confirmed in routine clinical practice.Trial registration: This study is registered at the Japan Pharmaceutical Information Center Clinical Trials Information (JapicCTI-153003).

journal_name

Expert Opin Drug Saf

authors

Ashida K,Honda Y,Sanada K,Takemura Y,Sakamoto S

doi

10.1080/14740338.2019.1676722

subject

Has Abstract

pub_date

2019-12-01 00:00:00

pages

1255-1261

issue

12

eissn

1474-0338

issn

1744-764X

journal_volume

18

pub_type

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