代谢
CYP3A4是负责伊马替尼代谢的主要酶。其他细胞色素P450酶,如CYP1A2、CYP2D6、CYP2C9和CYP2C19,在其代谢中起次要作用。人类循环中的主要活性代谢物是N-去甲基化的哌嗪衍生物,主要由CYP3A4形成。它显示出与伊马替尼相似的体外效力。这种代谢物的血浆AUC约为伊马替尼AUC的15%。
CYP3A4 is the major enzyme responsible for metabolism of imatinib. Other cytochrome P450 enzymes, such as CYP1A2, CYP2D6, CYP2C9, and CYP2C19, play a minor role in its metabolism. The main circulating active metabolite in humans is the N-demethylated piperazine derivative, formed predominantly by CYP3A4. It shows in vitro potency similar to imatinib. The plasma AUC for this metabolite is about 15% of the AUC for imatinib.
来源:Hazardous Substances Data Bank (HSDB)