毒理性
在几项大型临床试验中,环孢素治疗的开始与血清胆红素水平的轻度升高有关,通常不伴有血清ALT或碱性磷酸酶的显著增加。血清酶的升高也有描述,但较少见。最近,这些并发症似乎较为罕见,这可能是由于更谨慎地给药和监测环孢素水平。此外,在治疗没有移植众多并发症的自身免疫疾病时,环孢素治疗与高达30%的患者出现轻度血清碱性磷酸酶升高有关,但异常是无症状的,通常是自限性的,很少需要调整剂量。在几个病例系列中,环孢素治疗也与胆泥和胆石症有关。有临床明显的急性肝损伤的孤立病例报告归因于环孢素。发病时间是在开始使用环孢素后的几周内,血清酶升高的模式是胆汁淤积。一旦停止使用环孢素,恢复迅速,尚未有因环孢素引起的慢性肝炎或急性肝衰竭的报道。
In several large clinical trials, initiation of cyclosporine therapy was associated with mild elevations in serum bilirubin levels, often without significant increases in serum ALT or alkaline phosphatase. Elevations in serum enzymes were also described, but less commonly. Recently, these complications appear to be less frequent, perhaps because of more careful dosing and monitoring of cyclosporine levels. Furthermore, in treatment of autoimmune diseases without the many complications of transplantation, cyclosporine therapy has been associated with mild serum alkaline phosphatase elevations in up to 30% of patients, but the abnormalities are asymptomatic, usually self-limiting and rarely require dose adjustment. In several case series, cyclosporine therapy has also been associated with biliary sludge and cholelithiasis. Isolated case reports of clinically apparent acute liver injury have been attributed to cyclosporine. The time to onset was within a few weeks of starting cyclosporine and the pattern of serum enzyme elevations was cholestatic. Recovery was prompt once cyclosporine was stopped and cases of chronic hepatitis or acute liver failure due to cyclosporine have not been reported.
来源:LiverTox