The present invention relates to pharmaceutical compositions containing the antifolate aminopterin, processes for making the compositions, and methods of using them to treat disorders in adult and pediatric patients. Pharmaceutical compositions substantially free of impurities are provided comprising a therapeutically effective amount of aminopterin, or a pharmaceutically acceptable salt thereof. Relative to the teachings of the prior art, the disclosed methods and compositions provide unexpected improvements that include a greater interpatient oral bioavailability in pediatric patients, a smaller interpatient coefficient of variation of oral bioavailability, a smaller mean intrapatient coefficient of variation of oral bioavailability, a greater therapeutic index, a smaller coefficient of variation of toxicity, efficacy in combination therapy, and efficacy of certain polyglutamated metabolites.
本发明涉及含有抗叶酸
氨甲喋呤的药物组合物,制备该组合物的方法以及使用它们治疗成人和儿童患者疾病的方法。本发明提供了基本无杂质的药物组合物,其包含治疗有效量的
氨甲喋呤或其药学上可接受的盐。相对于先前技术的教导,所披露的方法和组合物提供了意想不到的改进,包括儿科患者口服
生物利用度更高,患者间口服
生物利用度的变异系数更小,患者内口服
生物利用度的平均变异系数更小,治疗指数更高,毒性变异系数更小,联合治疗的疗效以及某些多谷酰胺代谢物的疗效。