代谢
奥西替尼至少转化为两种药理活性的代谢物,AZ7550和AZ5104,它们的浓度大约是母体化合物浓度的10%。生物化学分析显示,AZ7550的效力与奥西替尼相似,而AZ5104对突变型和野生型EGFR的效力更强。主要的代谢途径是氧化(主要由CYP3A酶)和脱烷基。
Osimertinib is metabolized to at least two pharmacologically active metabolites, AZ7550 and AZ5104, that circulate at approximately 10% of the concentration of the parent compound. Biochemical assays have shown that AZ7550 has similar potency and efficacy to osimertinib, while AZ5104 is more potent against mutant and wild-type EGFR. The main metabolic pathways are oxidation (predominantly by CYP3A) and dealkylation.
来源:DrugBank