毒理性
1型酪氨酸血症是一种罕见疾病,使用尼替索尼酮的临床经验有限。治疗可能会伴随血清转氨酶水平的轻度升高,但这些通常较轻(不到正常上限[ULN]的3倍),并且常常即使在不调整剂量也会自行解决。转氨酶升高不伴随症状或血清碱性磷酸酶或胆红素水平的增加,很少需要调整剂量。在治疗酪氨酸血症或实验性研究中使用尼替索尼酮治疗其他酪氨酸代谢紊乱(如尿黑酸尿症)时,尚未有临床明显的肝损伤报告。
Type 1 tyrosinemia is a rare disease and clinical experience with use of nitisinone is limited. Therapy can be accompanied by mild elevations in serum aminotransferase levels, but these are generally mild (less than 3 times the upper limit of normal [ULN]) and often resolve even without dose modification. The aminotransferase elevations are not accompanied by symptoms or increases in serum alkaline phosphatase or bilirubin levels and rarely require dose modification. There have been no reports of clinically apparent liver injury attributed to nitisinone in the treatment of tyrosinemia or in experimental studies of its use in other disorders of tyrosine metabolism such as alkaptonuria.
来源:LiverTox