Evidence map›Paper›PMID 34091865›Full record

ArticleAdvances in therapy2021

Impact of Vonoprazan Triple-Drug Blister Packs on H. pylori Eradication Rates in Japan: Interrupted Time Series Analysis.

Hisato Deguchi, Hajime Yamazaki, Tsukasa Kamitani, Yosuke Yamamoto, Shunichi Fukuhara

Open access · hybridAbstract read
In one paragraph

Article in Advances in therapy, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.8field-weighted citation impact, top 27% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

3 citing papers in PubMed, 5 citations in OpenAlex.

  1. Helicobacter pylori Management in Older Adults: Current Perspectives From Japan.The Korean journal of helicobacter and upper gastrointestinal research · 2026
    Review
  2. Article
  3. Real-world outcomes associated with vonoprazan-basedTherapeutic advances in gastroenterology · 2023
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 1 institution in 1 country.

Hisato DeguchiDepartment of Healthcare Epidemiology, School of Public Health in the Graduate School of Medicine, Kyoto University, Kyoto, Japan.
Hajime YamazakiSection of Clinical Epidemiology, Department of Community Medicine, Graduate School of Medicine, Kyoto University, 54 Kawahara-cho, Syogoin, Sakyo-ku, Kyoto, 606-8507, Japan. yamazaki-myz@umin.ac.jp.ORCID http://orcid.org/0000-0002-9034-4370
Tsukasa KamitaniDepartment of Healthcare Epidemiology, School of Public Health in the Graduate School of Medicine, Kyoto University, Kyoto, Japan.
Yosuke YamamotoDepartment of Healthcare Epidemiology, School of Public Health in the Graduate School of Medicine, Kyoto University, Kyoto, Japan.
Shunichi FukuharaSection of Clinical Epidemiology, Department of Community Medicine, Graduate School of Medicine, Kyoto University, 54 Kawahara-cho, Syogoin, Sakyo-ku, Kyoto, 606-8507, Japan.
Kyoto University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionHelicobacter pylori eradication therapy requires a complex prescribing schedule combining clarithromycin, amoxicillin, and a proton-pump inhibitor (PPI) or potassium-competitive acid blocker (P-CAB, vonoprazan). To reduce the burden of complex prescribing and increase adherence, a vonoprazan triple-drug blister pack comprising all three medications was launched in June 2016. This study aimed to assess the impact of the combination blister pack on eradication success rate in Japan immediately after launch.

methodsWe performed an interrupted time series analysis using a large administrative claims database of 7,300,000 insured individuals. We identified 36,570 patients who received first-line clarithromycin triple therapy from June 2015 to May 2016 (prelaunch) and 35,721 who received the same therapy from July 2016 to June 2017 (post-launch). The primary outcome was the success rate of clarithromycin triple therapy and the secondary outcomes were proportion of vonoprazan use and proportion of combination blister pack use.

resultsThe success rate of clarithromycin triple therapy increased by 2.44% (95% confidence interval [CI] 1.36-3.52; P < 0.0001) after the launch of the vonoprazan triple-drug blister pack. The proportion of vonoprazan use and proportion of combination blister pack use increased by 12.7% (95% CI 10.0-15.3; P < 0.0001) and 29.2% (95% CI 25.4-32.9; P < 0.0001), respectively.

conclusionsLaunch of the vonoprazan triple-drug blister pack had a significant impact on the success rate of clarithromycin triple therapy, with greater proportions of vonoprazan and combination blister pack use. Introducing an easy-to-use formulation may be effective in changing prescribing practice and subsequent patient outcomes.

Indexed as

Helicobacter InfectionsHelicobacter pyloriPharmaceutical PreparationsAmoxicillinAnti-Bacterial AgentsClarithromycinDrug Therapy, CombinationHumansInterrupted Time Series AnalysisJapanProton Pump InhibitorsPyrrolesSulfonamidesTreatment Outcome1-(5-(2-fluorophenyl)-1-(pyridin-3-ylsulfonyl)-1H-pyrrol-3-yl)-N-methylmethanamineAmoxicillinAnti-Bacterial AgentsClarithromycinPharmaceutical PreparationsProton Pump InhibitorsPyrrolesSulfonamidesDrug packagingDrug therapyHelicobacter pyloriInterrupted time series analysisProton-pump inhibitors

Identifiers

PMID34091865
PMCPMC8280045
OpenAlexW3166943079

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.