Pharmacokinetic and pharmacodynamic analysis of oral direct thrombin inhibitor for individualized pharmacotherapy
Project/Area Number |
17K15528
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Research Category |
Grant-in-Aid for Young Scientists (B)
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Allocation Type | Multi-year Fund |
Research Field |
Medical pharmacy
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Research Institution | Ritsumeikan University |
Principal Investigator |
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Research Collaborator |
KATSURA Toshiya
TERADA Tomohiro
HORIE Minoru
HIRA Daiki
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Project Period (FY) |
2017-04-01 – 2019-03-31
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Project Status |
Completed (Fiscal Year 2018)
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Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2018: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2017: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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Keywords | 直接トロンビン阻害薬 / 薬理ゲノム解析 / 個別化投与設計 / 母集団解析 / 第Xa因子阻害薬 / 母集団薬物速度論 / ゲノム薬理学的解析 / PK/PD解析 / 医療薬剤学 / 薬理遺伝学 |
Outline of Final Research Achievements |
Dabigatran, an oral direct inhibitor of thrombin, is used to prevent stroke or systemic embolism in patients. This study aimed to evaluate the influences of characteristics of patients and genetic polymorphisms in drug transporter and enzyme on pharmacokinetics and pharmacodynamics of dabigatran. The pharmacokinetic and pharmacodynamic analysis using non-linear mixed effect modeling (MONMEM) program showed that renal function was an intrinsic factor affecting trough concentration of dabigatran, although no genetic polymorphisms in drug transporter and enzyme affect its concentration. This analysis also showed that the anti-thrombin activity of dabigatran was linearly correlated with trough concentration of dabigatran, although characteristics of patients and genetic polymorphisms in drug transporter and enzyme did not affect the anti-thrombin activity of dabigatran.
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Academic Significance and Societal Importance of the Research Achievements |
近年、心原性脳塞栓症の予防目的で、直接作用型経口抗凝固薬 (DOACs) が使用されている。DOACsによる出血は高頻度で認められるが、DOACsの薬効を反映する明確な指標がないことが問題になっている。本研究では、直接トロンビン阻害薬ダビガトランの適正使用の実践に必要な情報を収集することを目指し、ダビガトランの血液中濃度や薬効の発現に及ぼす患者背景の影響について検討した。その結果、ダビガトランの血液中濃度の個人差は患者の腎機能で説明可能であった。また、ダビガトランの薬効の強さはダビガトランの血液中濃度の高さに関係するが、ダビガトランの効果の強さと患者背景の間に明確な関係は認められなかった。
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Report
(3 results)
Research Products
(20 results)
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[Journal Article] Population pharmacokinetics and pharmacogenomics of apixaban in Japanese adult patients with atrial fibrillation.2018
Author(s)
Ueshima S, Hira D, Kimura Y, Fujii R, Tomitsuka C, Yamane T, Tabuchi Y, Ozawa T, Itoh H, Ohno S, Horie M, Terada T, Katsura T.
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Journal Title
Br. J. Clin. Pharmacol.
Volume: -
Issue: 6
Pages: 1301-1312
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] 抗てんかん薬TDM標準化ガイドライン (STATEMENT) 2017 Version 1.02017
Author(s)
谷川原祐介, 千堂年昭, 今村知世, 河崎陽一, 末丸克矢, 村木 優一, 矢野育子, 伊藤聡子, 上島 智, 田中亮裕, 林 雅彦, 小林勝弘.
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Journal Title
TDM研究
Volume: 34
Pages: 67-95
Related Report
Peer Reviewed
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[Journal Article] Impact of ABCB1, ABCG2, and CYP3A5 polymorphisms on plasma trough concentrations of apixaban in Japanese patients with atrial fibrillation2017
Author(s)
Satoshi Ueshima, Daiki Hira, Ryo Fujii, Yuuma Kimura, Chiho Tomitsuka, Takuya Yamane, Yohei Tabuchi, Tomoya Ozawa, Hideki Itoh, Minoru Horie, Tomohiro Terada, Toshiya Katsura
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Journal Title
Pharmacogenetics and Genomics
Volume: 27
Issue: 9
Pages: 329-336
DOI
Related Report
Peer Reviewed
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[Presentation] Population pharmacokinetics and pharmacodynamics of apixaban in Japanese patients with atrial fibrillation2018
Author(s)
Satoshi Ueshima, Daiki Hira, Chiho Tomitsuka, Miki Nomura, Yuuma Kimura, Takuya Yamane, Yohei Tabuchi, Tomoya Ozawa, Hideki Itoh, Seiko Ohno, Minoru Horie, Tomohiro Terada and Toshiya Katsura
Organizer
18th World Congress of Basic and Clinical Pharmacology (WCP2018)
Related Report
Int'l Joint Research
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[Presentation] Population pharmacokinetics of apixaban in Japanese patients with atrial fibrillation2017
Author(s)
Satoshi Ueshima, Daiki Hira, Ryo Fujii, Yuuma Kimura, Chiho Tomitsuka, Takuya Yamane, Yohei Tabuchi, Tomoya Ozawa, Hideki Itoh, Seiko Ohno, Minoru Horie, Tomohiro Terada and Toshiya Katsura
Organizer
第11回 次世代を担う若手医療薬科学シンポジウム
Related Report
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[Presentation] Population pharmacokinetics and pharmacogenomics of apixaban in Japanese patients2017
Author(s)
Satoshi Ueshima, Daiki Hira, Ryo Fujii, Yuuma Kimura, Chiho Tomitsuka, Takuya Yamane, Yohei Tabuchi, Tomoya Ozawa, Hideki Itoh, Seiko Ohno, Minoru Horie, Tomohiro Terada and Toshiya Katsura
Organizer
2017 AAPS Annual Meeting and Exposition
Related Report
Int'l Joint Research
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