[Translation] An open-label, multinational, multicenter, intravenous infusion study evaluating the efficacy, safety, pharmacokinetics, and pharmacodynamics of avalglucosidase alfa in pediatric subjects with untreated infantile-onset Pompe disease (IOPD)
主要目的:确定avalglucosidase alfa治疗对≤6月龄IOPD受试者治疗52周后的生存期和不使用有创呼吸机生存期的作用。次要目的:(1)确定avalglucosidase alfa治疗对12月龄和18月龄受试者的生存期和不使用有创呼吸机生存期的作用,以及≤6月龄IOPD患者第52周时LVM-Z评分、AIMS评分、体长、体重和头围Z评分以及尿Hex4的变化;(2)确定avalglucosidase alfa的安全性、耐受性和免疫原性;(3)确定第12周和52周时的PK特征。
[Translation] Primary objective: To determine the effect of avalglucosidase alfa treatment on survival and invasive ventilation-free survival in subjects ≤6 months of age with IOPD after 52 weeks of treatment. Secondary objectives: (1) To determine the effect of avalglucosidase alfa treatment on survival and invasive ventilation-free survival in subjects aged 12 and 18 months, as well as changes in LVM-Z score, AIMS score, length, weight and head circumference Z score, and urinary Hex4 at week 52 in patients with IOPD ≤6 months of age; (2) To determine the safety, tolerability, and immunogenicity of avalglucosidase alfa; (3) To determine the PK characteristics at weeks 12 and 52.