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Comparison of Hemorrhagic Risk between Prasugrel and Clopidogrel: a Retrospective Study using Adverse Drug Event Reporting Databases

Research Project

Project/Area Number 18K14954
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 47060:Clinical pharmacy-related
Research InstitutionNagoya City University

Principal Investigator

HAGIWARA HIROMI  名古屋市立大学, 医薬学総合研究院(医学), 助教 (70793727)

Project Period (FY) 2018-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2020: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2019: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2018: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Keywords抗血小板薬 / 大規模医療情報 / リアルワールドデータ / 国際共同治験 / 民族差 / プラスグレル / クロピドグレル / 治験 / 大規模医療情報データベース
Outline of Final Research Achievements

Prasugrel inhibits platelet aggregation more potently and exerts therapeutic action faster than clopidogrel. In the global phase III trial conducted in Western and South American countries that excluded Asian countries, prasugrel reduced ischemic events but increased hemorrhagic risk compared with clopidogrel in patients with acute coronary syndrome scheduled for percutaneous coronary intervention. In the Japanese phase III trial for similar patients, the efficacy of prasugrel compared with clopidogrel was comparable to the global trial, but the safety could not be confirmed because of an insufficient number of patients.
Furthermore, given the strict enrollment criteria, the results of these trials may not be applicable to routine clinical practice. Accordingly, we compared the hemorrhagic risk of prasugrel and clopidogrel in real-world settings.The hemorrhagic risk was found to be greater with prasugrel than clopidogrel.

Academic Significance and Societal Importance of the Research Achievements

昨今の国際共同治験の促進により、日本人症例の組み入れが少ないまま有効性や安全性が検証され、承認される医薬品が多くなってきている。そこで、本研究では、治験時に日本人症例が少なく、日本人における有効性や安全性が明らかにされていないことに関し、日本人データを多数含む大規模医療情報データベースを活用した市販後の調査をすることを目的とした。本研究により、大規模データを用いた調査が、臨床試験時の民族差の課題を解決する一助となることを示した。出血リスクがより低く、かつ抗血小板効果が高く使用できる薬剤選択について検討し、日本人における抗血小板薬の適正使用につなげることができた。

Report

(6 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (4 results)

All 2021 2020 2018

All Journal Article (2 results) (of which Peer Reviewed: 2 results,  Open Access: 2 results) Presentation (2 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] A comparison of the safety and effectiveness of prasugrel and clopidogrel in younger population undergoing percutaneous coronary intervention: A retrospective study using a Japanese claims database2021

    • Author(s)
      Hagiwara H, Fukuta H, Hashimoto H, Niimura T, Zamami Y, Ishizawa K, Kamiya T, Ohte N.
    • Journal Title

      Journal of Cardiology

      Volume: 77 Issue: 3 Pages: 285-291

    • DOI

      10.1016/j.jjcc.2020.10.001

    • Related Report
      2021 Research-status Report 2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Comparison of Hemorrhagic Risk between Prasugrel and Clopidogrel: a Retrospective Study using Adverse Drug Event Reporting Databases2020

    • Author(s)
      Hagiwara Hiromi、Fukuta Hidekatsu、Niimura Takahiro、Zamami Yoshito、Ishizawa Keisuke、Kimura Kazunori、Kamiya Takeshi、Ohte Nobuyuki
    • Journal Title

      International Journal of Medical Sciences

      Volume: 17 Issue: 6 Pages: 728-733

    • DOI

      10.7150/ijms.43168

    • NAID

      120006956856

    • Related Report
      2020 Research-status Report 2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Comparison of breeding risk between prasugrel and clopidogrel using the spontaneous reporting system of adverse drug events2018

    • Author(s)
      Hiromi Hagiwara, Hidekatsu Fukuta, Tatsuya Muto, Masahiro Tohkin, Takeshi Kamiya
    • Organizer
      The 18th World Congress of Basic and Clinical Pharmacology (WCP2018)
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] 抗血小板薬クロピドグレルとプロトンポンプ阻害薬併用時における消化管出血リスクについて2018

    • Author(s)
      萩原宏美、福田英克、神谷武
    • Organizer
      第3回日本臨床薬理学会 東海・北陸地方会
    • Related Report
      2018 Research-status Report

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Published: 2018-04-23   Modified: 2024-01-30  

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