• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Pharmacoepidemiological study to investigate the characteristics and treatments in patients with rheumatic diseases using a large health insurance database

Research Project

Project/Area Number 20K10480
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 58030:Hygiene and public health-related: excluding laboratory approach
Research InstitutionMeiji Pharmaceutical University

Principal Investigator

Sakai Ryoko  明治薬科大学, 薬学部, 准教授 (30631981)

Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2022: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2021: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2020: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords疫学 / 薬剤疫学 / リウマチ性疾患 / 高安動脈炎 / 巨細胞性動脈炎 / 関節リウマチ / ヤヌスキナーゼ阻害薬 / 安全性 / 診療実態 / 全身性エリテマトーデス / 合併症 / 抗リウマチ薬 / 地域格差
Outline of Research at the Start

1年次は関節リウマチ(RA)治療の診療格差について検討する。レセプト情報を用いて、RA治療薬の処方割合とRAに関連した診療行為の実施割合を地域および施設間で比較する。
2年次は全身性エリテマトーデス(SLE)患者の診療実態と合併症について検討する。レセプト情報を用いて、SLE治療薬の処方割合および感染症や脳心血管疾患のリスクを解析する。
3年次はANCA関連血管炎患者の薬物治療や診療行為の実施割合と医療費の記述、寛解導入療法後の再入院に関連する因子を探索する。

Outline of Final Research Achievements

In this study, we conducted pharmacoepidemiological studies in rheumatic diseases using the large administrative claims data in Japan. First, we showed that the prescription of anchor drug (methotrexate, MTX) for patients with rheumatoid arthritis (RA) widespread nationwide although there were regional differences in the proportion of patients with RA who had visited specializing facilities for RA treatments. Second, it has been demonstrated that Janus kinase inhibitors had similar risk of cardiovascular diseases (CVD) with MTX, whereas, had significantly higher risk than tumor necrosis inhibitors. Third, in patients with systemic lupus erythematosus, frequency and risk factors of clinically important comorbidities such as serious infection, CVD, and osteonecrosis, and admission were revealed. In addition, medical costs and medications in patients with patients with vasculitis were also shown in this study.

Academic Significance and Societal Importance of the Research Achievements

大規模データベースを使うことで、しばしば問題となる選択バイアスの影響が少ないことが特徴である。関節リウマチに対する治療の地域格差の有無を検討したのは本研究が初めてであり、我が国の関節リウマチ診療ガイドラインに有用なエビデンスの一部となった。特にヤヌスキナーゼ阻害薬の安全性については世界的にも注目されており、日本における上質なエビデンスが待たれていたため今回大規模集団でそのリスクが明らかになったことは意義深い。さらに、全身性エリテマトーデスや血管炎などの他のリウマチ性疾患においても薬剤疫学的なエビデンスを得ることができたため、これらの疾患における安全な薬物治療に繋がることが期待される。

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (9 results)

All 2022 2021 2020

All Journal Article (3 results) (of which Peer Reviewed: 3 results,  Open Access: 2 results) Presentation (6 results) (of which Int'l Joint Research: 3 results)

  • [Journal Article] Unincreased risk of hospitalized infection under targeted therapies versus methotrexate in elderly patients with rheumatoid arthritis: a retrospective cohort study2022

    • Author(s)
      Ryoko Sakai, Eiichi Tanaka, Masako Majima, Masayoshi Harigai
    • Journal Title

      Arthritis research and therapy

      Volume: 24 Issue: 1

    • DOI

      10.1186/s13075-022-02807-9

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Geographic variations in rheumatoid arthritis treatment in Japan: A nationwide retrospective study using the national database of health insurance claims and specific health checkups of Japan2021

    • Author(s)
      Nakajima Ayako、Sakai Ryoko、Inoue Eisuke、Harigai Masayoshi
    • Journal Title

      Modern Rheumatology

      Volume: 32 Issue: 1 Pages: 105-113

    • DOI

      10.1080/14397595.2021.1910615

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Prevalence of patients with rheumatoid arthritis and age‐stratified trends in clinical characteristics and treatment, based on the National Database of Health Insurance Claims and Specific Health Checkups of Japan2020

    • Author(s)
      Nakajima Ayako、Sakai Ryoko、Inoue Eisuke、Harigai Masayoshi
    • Journal Title

      International Journal of Rheumatic Diseases

      Volume: 23 Issue: 12 Pages: 1676-1684

    • DOI

      10.1111/1756-185x.13974

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Risk of vascular events under the treatments with Janus kinase inhibitors in rheumatoid arthritis patients using Japanese health insurance database2022

    • Author(s)
      Ryoko sakai, Eiichi Tanaka, Eisuke Inoue, Azumi Isobe, Masayoshi Harigai
    • Organizer
      Asian conference of Pharmacoepidemiology
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Risk of Vascular Events Under the Treatments with Janus Kinase Inhibitors in Patients with Rheumatoid Arthritis: an Analysis Using Japanese Health Insurance Database2022

    • Author(s)
      Eiichi Tanaka, Ryoko sakai, Eisuke Inoue, Masayoshi Harigai
    • Organizer
      American College of Rheumatology
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Decreased risk of osteonecrosis over time in patients with systemic lupus erythematosus using Japanese health insurance database2021

    • Author(s)
      Ryoko Sakai
    • Organizer
      欧州リウマチ学会
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] ナショナルデータベースを用いた全国の関節リウマチ患者数の推定2020

    • Author(s)
      中島亜矢子
    • Organizer
      第64回日本リウマチ学会総会・学術集会
    • Related Report
      2020 Research-status Report
  • [Presentation] ナショナルデータベースを用いた関節リウマチ患者数および診療実態の都道府県別検討2020

    • Author(s)
      中島亜矢子
    • Organizer
      第64回日本リウマチ学会総会・学術集会
    • Related Report
      2020 Research-status Report
  • [Presentation] ナショナルデータベースを用いた高齢関節リウマチ患者の処方実態に関する検討2020

    • Author(s)
      酒井良子
    • Organizer
      第64回日本リウマチ学会総会・学術集会
    • Related Report
      2020 Research-status Report

URL: 

Published: 2020-04-28   Modified: 2025-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi