代谢
Pexidartinib 主要通过肝脏的 CYP3A4 介导的氧化和 UGT1A4 介导的葡萄糖醛酸化进行代谢。在 UGT1A4 介导的葡萄糖醛酸化之后,会形成一个主要的无活性 N-葡萄糖醛酸代谢物,单次给药后,其暴露量大约比母药高出 10%。根据体外研究的发现,CYP1A2 和 CYP2C9 在药物代谢中也可能发挥较小的作用。
Pexidartinib primarily undergoes oxidation mediated by hepatic CYP3A4 and glucuronidation by UGT1A4. Following UGT1A4-mediated glucuronidation, a major inactive N-glucuronide metabolite is formed with approximately 10% higher exposure than the parent drug after a single dose administration of pexidartinib.[L7883] Based on the findings of _in vitro_ studies, CYP1A2 and CYP2C9 may also play a minor role in drug metabolism.[L7895]
来源:DrugBank