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A longitudinal study on the pharmacokinetics considering individual differences of developmental change and optimization of long-term drug administration

Research Project

Project/Area Number 18K06780
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 47060:Clinical pharmacy-related
Research InstitutionUniversity of Toyama

Principal Investigator

Taguchi Masato  富山大学, 学術研究部薬学・和漢系, 教授 (20324056)

Co-Investigator(Kenkyū-buntansha) 市田 蕗子  富山大学, 事務局, 学長補佐 (30223100)
廣野 恵一  富山大学, 学術研究部医学系, 講師 (80456384)
吉田 丈俊  富山大学, 学術研究部医学系, 特命教授 (90361948)
Project Period (FY) 2018-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2018: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords小児 / 薬物体内動態 / 長期データ解析 / タダラフィル / ワルファリン / シルデナフィル / カフェイン / 相互作用 / ボセンタン / マシテンタン / 右心不全 / 小児循環器 / アロメトリー式 / 蛋白漏出性胃腸症 / 低アルブミン血症 / 心不全 / 薬物動態 / 小児発達 / 個別投与設計 / 長期追跡
Outline of Final Research Achievements

Because children have greater variability in pharmacokinetics than adults, individualized optimization of drug treatment in children is one of the most important issues. We conducted neonatal to pediatric studies to advance individualized pharmacotherapy in children and determined covariates and its evidence based on experimental approaches. Specifically, we demonstrated that 1) the disposition and/or response to tadalafil in patients with hypoalbuminemia was altered by the change in protein binding of the drug, 2) developmental change and heart failure can alter the anticoagulant effect of warfarin, 3) drug absorption rate is at least partly responsible for the pharmacokinetic variability of sildenafil in the ICU patients, and 4) the hepatic metabolism is not a major determinant of pharmacokinetics of caffeine in neonatal patients.

Academic Significance and Societal Importance of the Research Achievements

これまで申請者は、少数採血デザインとデータ解析法を考案し、小児・新生児における臨床薬物動態研究に取り組んできた。また申請者は、小児患者の長期追跡において発達がワルファリンの抗凝固作用の共変量であることを明らかにした。本研究では、時期を異にする少数採血データを補間・解析する手法を採用し、同一症例の内的変動を考慮したデータ解析が小児期における薬物動態変化を精密に定量化する鍵になる事を明らかにした。このことは、小児集団の臨床研究計画において課題とされてきた被検者数の確保を緩和することに繋がるため、小児をはじめとする特殊患者集団における今後の研究推進に繋がる成果と考えられた。

Report

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

    (10 results)

All 2022 2021 2020 2019 2018

All Journal Article (6 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 6 results,  Open Access: 2 results) Presentation (4 results)

  • [Journal Article] Effects of Concomitant Administration of PXR Ligand Drugs on the Anticoagulant Effects of Warfarin2022

    • Author(s)
      Mito A, Hirono K, Ide H, Ozawa S, Ichida F, Taguchi M
    • Journal Title

      Biological and Pharmaceutical Bulletin

      Volume: 45 Issue: 6 Pages: 703-708

    • DOI

      10.1248/bpb.b21-00853

    • ISSN
      0918-6158, 1347-5215
    • Year and Date
      2022-06-01
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Pharmacokinetic Variability of Caffeine in Routinely Treated Preterm Infants: Preliminary Considerations on Developmental Changes of Systemic Clearance2021

    • Author(s)
      Masato Taguchi, Yukako Kawasaki, Arisa Katsuma, Ayane Mito, Kentaro Tamura, Masami Makimoto, Taketoshi Yoshida
    • Journal Title

      Biological and Pharmaceutical Bulletin

      Volume: 44 Issue: 1 Pages: 69-74

    • DOI

      10.1248/bpb.b20-00616

    • NAID

      130007965352

    • ISSN
      0918-6158, 1347-5215
    • Year and Date
      2021-01-01
    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] The Pharmacokinetics of Sildenafil May Be Affected by Intestinal Absorption Rate in Children Admitted to the Intensive Care Unit2020

    • Author(s)
      Yukino Oya, Daisuke Watahiki, Mitsuki Matsunaga, Keiichi Hirono, Fukiko Ichida, Masaya Aoki, Naoki Yoshimura, Masato Taguchi
    • Journal Title

      Biological and Pharmaceutical Bulletin

      Volume: 43 Issue: 12 Pages: 1917-1923

    • DOI

      10.1248/bpb.b20-00614

    • NAID

      130007948744

    • ISSN
      0918-6158, 1347-5215
    • Year and Date
      2020-12-01
    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] CYP2C9, VKORC1, and CYP4F2 Polymorphisms and Pediatric Warfarin Maintenance Dose: A Systematic Review and Meta-Analysis2020

    • Author(s)
      Takeuchi M, Kobayashi T, Biss T, Kamali F, Vear SI, Ho RH, Bajolle F, Loriot MA, Shaw K, Carleton BC, Hamberg AK, Wadelius M, Hirono K, Taguchi M, Wakamiya T, Yanagimachi M, Hirai K, Itoh K, Brandão LR, and Ito S.
    • Journal Title

      Pharmacogenomics J

      Volume: 20 Issue: 2 Pages: 306-319

    • DOI

      10.1038/s41397-019-0117-x

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Determination of the Serum Unbound Fraction of Tadalafil in Children with Protein-Losing Enteropathy and Its Specific Binding to Human Serum Proteins <i>in Vitro</i>2019

    • Author(s)
      Shigetomi N, Kamiya K, Takamori T, Yoshimura N, Ozawa S, Hirono K, Ichida F, and Taguchi M.
    • Journal Title

      Biological and Pharmaceutical Bulletin

      Volume: 42 Issue: 1 Pages: 110-115

    • DOI

      10.1248/bpb.b18-00652

    • NAID

      130007542233

    • ISSN
      0918-6158, 1347-5215
    • Year and Date
      2019-01-01
    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Evaluation of the effects of ontogenetic or maturation functions and chronic heart failure on the model analysis for the dose-response relationship of warfarin in Japanese children2019

    • Author(s)
      Tamura R, Watanabe N, Nakamura S, Yoshimura N, Ozawa S, Hirono K, Ichida F, and Taguchi M.
    • Journal Title

      Eur. J. Clin. Pharmacol.

      Volume: 印刷中 Issue: 7 Pages: 913-920

    • DOI

      10.1007/s00228-019-02652-x

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Presentation] 蛋白漏出性胃腸症患者に伴うタダラフィルの血清蛋白結合率変動2021

    • Author(s)
      田口 雅登,廣野 恵一,小澤 綾佳,芳村 直樹,市田 蕗子
    • Organizer
      第27回日本小児肺循環研究会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 蛋白漏出性胃腸症患者におけるタダラフィルの血清蛋白結合率と キャリア蛋白に関する研究2019

    • Author(s)
      神谷健太, 重冨七海, 髙森 徹, 芳村直樹, 小澤綾佳, 廣野恵一, 市田蕗子, 田口雅登
    • Organizer
      日本薬学会第139年会
    • Related Report
      2018 Research-status Report
  • [Presentation] 早産・低出生体重児に対するカフェイン投与の安全性評価2018

    • Author(s)
      田口雅登、勝眞愛梨沙、川崎裕香子、足立雄一、吉田丈俊
    • Organizer
      第28回日本医療薬学会年会
    • Related Report
      2018 Research-status Report
  • [Presentation] 小児ワルファリン療法における抗凝固作用の発達変動モデルと共変量に関する研究2018

    • Author(s)
      田村 理香, 渡辺 直, 中村 早稀, 芳村 直樹, 小澤 綾佳, 廣野 恵一, 市田 蕗子, 田口 雅登
    • Organizer
      第28回日本医療薬学会年会
    • Related Report
      2018 Research-status Report

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Published: 2018-04-23   Modified: 2023-01-30  

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