Metabolism of goserelin, by hydrolysis of the C-terminal amino acids, is the major clearance mechanism. The major circulating component in serum appeared to be 1-7 fragment, and the major component present in urine of one healthy male volunteer was 5-10 fragment. The metabolism of goserelin in humans yields a similar but narrow profile of metabolites to that found in other species. All metabolites found in humans have also been found in toxicology species.
Goserelin has been associated with mild serum enzyme elevations during therapy in 3% to 5% of patients, but values above 3 times the upper limit of normal are rare, being reported in less than 1% of recipients. The serum enzyme elevations during goserelin therapy have generally been transient and asymptomatic, resolving even with drug continuation and rarely requiring dose modification or discontinuation. Despite use for several decades, goserelin has been linked to only a single, and not entirely convincing, case of clinically apparent liver injury. Routine monitoring of patients for liver test abnormalities is not recommended.
Clearance of goserelin following subcutaneous administration of a radiolabeled solution of goserelin was very rapid and occurred via a combination of hepatic and urinary excretion. More than 90% of a subcutaneous radiolabeled solution formulation dose of goserelin was excreted in urine.
来源:DrugBank
吸收、分配和排泄
分布容积
44.1 ± 13.6 升 [皮下注射250微克]
44.1 ± 13.6 L [subcutaneous administration of 250 mcg]
来源:DrugBank
吸收、分配和排泄
清除
前列腺癌,每分钟血液流量为121毫升加减42.4毫升 [使用10.8毫克药物]
121 +/- 42.4 mL/min [prostate cancer with 10.8 mg depot]
The apparent volume of distribution determined after subcutaneous administration of 250 ug aqueous solution of goserelin was 44.1 + or - 13.6 liters for healthy males. The plasma protein binding of goserelin was found to be 27%.