代谢
奥拉帕利在肝脏中被CYP3A同工酶广泛代谢。[F2974] 从给药剂量中,奥拉帕利的未改变形式占循环剂量的70%,被认为是尿液和粪便中的主要成分。[L5089] 奥拉帕利的代谢途径主要是归因于氧化反应,随后与葡萄糖醛酸和硫酸结合。然而,在血浆、尿液和粪便中发现的超过20种代谢物仅占给药剂量的较小部分。主要的循环代谢物是由单氧合形式和哌嗪-3-醇形式组成。[L5089]
Olaparib is extensively metabolized in the liver by the action of CYP3A isoenzymes.[F2974] From the administered dose, the unchanged form of olaparib accounted for 70% of the circulating dose and it was considered the major component in urine and feces.[L5089] The metabolic pathway of olaparib is mainly attributable to oxidation reactions with subsequent glucuronide and sulfate conjugation. However, the over 20 metabolites found in plasma, urine, and feces represented a minor portion of the administered dose. The major circulating metabolites were represented by the mono-oxygenated form and the piperazin-3-ol form.[L5089]
来源:DrugBank