代谢
帕洛伐罗特烯通过CYP3A4进行广泛代谢,其次是通过CYP2C8和CYP2C19。在血浆中观察到了五种代谢物:M1(6,7-二羟基)、M2(6-羟基)、M3(7-羟基)、M4a(6-酮基)和M4b(7-酮基)。口服帕洛伐罗特烯后,母药及其四种主要代谢物(M2、M3、M4a和M4b)大约占总血浆暴露的40%。帕洛伐罗特烯的代谢物功能上不活跃,其中M3和M4b分别携带其母化合物活性的1.7%和4.2%。
Palovarotene undergoes extensive metabolism by CYP3A4 and, to a lesser extent, CYP2C8 and CYP2C19. Five metabolites have been observed in plasma: M1 (6,7-dihydroxy), M2 (6-hydroxy), M3 (7-hydroxy), M4a (6-oxo), and M4b (7-oxo). Following oral administration of palovarotene, the parent drug and its four main metabolites (M2, M3, M4a, and M4b) account for approximately 40% of total plasma exposure. The metabolites of palovarotene are functionally inactive, with M3 and M4b carrying 1.7% and 4.2% of the activity of their parent compound, respectively.
来源:DrugBank