Human total clearance values and volumes of distribution of typical human cytochrome P450 2C9/19 substrates predicted by single-species allometric scaling using pharmacokinetic data sets from common marmosets genotyped forP450 2C19 / Shogo Matsumoto, Shotaro Uehara, Hidetaka Kamimura, Hiroshi Ikeda, Satoshi Maeda, Machiko Hattori, Megumi Nishiwaki, Kazuhiko Kato, Hiroshi Yamazaki
Abstract Common marmosets ( Callithrix jacchus ) are small non-human primates that genetically lack cytochrome P450 2C9 ( CYP2C9 ). Polymorphic marmoset CYP2C19 compensates by mediating oxidations of typical human CYP2C9/19 substrates. Twenty-four probe substrates were intravenously administered in combinations to marmosets assigned to extensive or poor metaboliser (PM) groups by CYP2C19 genotyping. Eliminations from plasma of cilomilast, phenytoin, repaglinide, tolbutamide, and S -warfarin in the CYP2C19 PM group were significantly slow; these drugs are known substrates of human CYP2C8/9/19. Human total clearance values and volumes of distribution of the 24 test compounds were extrapolated using single-species allometric scaling with experimental data from marmosets and found to be mostly comparable with the reported values. Human total clearance values and volumes of distribution of 15 of the 24 test compounds similarly extrapolated using reported data sets from cynomolgus or rhesus monkeys were comparable to the present predicted results, especially to those based on data from PM marmosets. These results suggest that single-species allometric scaling using marmosets, being small, has advantages over multiple-species-based allometry and could be applicable for pharmacokinetic predictions at the discovery stage of drug development.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2021 |
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| Erschienen: |
2021 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:51 |
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| Enthalten in: |
Xenobiotica - 51(2021), 4, Seite 479-493 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Matsumoto, Shogo [VerfasserIn] |
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| Links: |
FID Access [lizenzpflichtig] |
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| Themen: |
Allometry |
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| Umfang: |
1 Online-Ressource (15 p) |
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| doi: |
10.1080/00498254.2020.1871113 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| 245 | 1 | 0 | |a Human total clearance values and volumes of distribution of typical human cytochrome P450 2C9/19 substrates predicted by single-species allometric scaling using pharmacokinetic data sets from common marmosets genotyped forP450 2C19 |c Shogo Matsumoto, Shotaro Uehara, Hidetaka Kamimura, Hiroshi Ikeda, Satoshi Maeda, Machiko Hattori, Megumi Nishiwaki, Kazuhiko Kato, Hiroshi Yamazaki |
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| 520 | |a Abstract Common marmosets ( Callithrix jacchus ) are small non-human primates that genetically lack cytochrome P450 2C9 ( CYP2C9 ). Polymorphic marmoset CYP2C19 compensates by mediating oxidations of typical human CYP2C9/19 substrates. Twenty-four probe substrates were intravenously administered in combinations to marmosets assigned to extensive or poor metaboliser (PM) groups by CYP2C19 genotyping. Eliminations from plasma of cilomilast, phenytoin, repaglinide, tolbutamide, and S -warfarin in the CYP2C19 PM group were significantly slow; these drugs are known substrates of human CYP2C8/9/19. Human total clearance values and volumes of distribution of the 24 test compounds were extrapolated using single-species allometric scaling with experimental data from marmosets and found to be mostly comparable with the reported values. Human total clearance values and volumes of distribution of 15 of the 24 test compounds similarly extrapolated using reported data sets from cynomolgus or rhesus monkeys were comparable to the present predicted results, especially to those based on data from PM marmosets. These results suggest that single-species allometric scaling using marmosets, being small, has advantages over multiple-species-based allometry and could be applicable for pharmacokinetic predictions at the discovery stage of drug development | ||
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