RecruitingPhase 3Biological interventionA Study to Evaluate the Safety, Efficacy, PK, PD and Immunogenicity of Cipaglucosidase Alfa/Miglustat in IOPD Subjects Aged 0 to <18This is a Phase 3, open-label, multicenter study to evaluate the safety, efficacy, PK, PD, and immunogenicity of cipaglucosidase alfa/miglustat treatment in ERT-experienced and ERT-naïve pediatric subjects with IOPD.