代谢
根据体外和临床研究,clascoterone的主要可能初级代谢物是cortexolone,这是一种无活性的代谢物。Cortexolone的血浆浓度通常低于或接近定量下限(0.5 ng/mL)。尽管clascoterone能渗透皮肤,但由于皮肤和血浆酯酶(即羧酸酯酶)迅速将clascoterone水解为无活性代谢物,因此该药物的系统性作用是有限的。
According to _in vitro_ and clinical studies, the main possible primary metabolite of clascoterone is cortexolone, which is an inactive metabolite. The plasma concentrations of cortexolone were generally below or near the lower limit of quantitation (0.5 ng/mL). Although clascoterone penetrates the skin, the systemic activity of the drug is limited due to rapid hydrolysis of clascoterone into the inactive metabolite by skin and plasma esterases, namely carboxylesterase.
来源:DrugBank