Neurodevelopmental status and adaptive behavior of pediatric patients with Hunter syndrome: A longitudinal observational study
2019
Two-thirds of patients with mucopolysaccharidosis type II (MPS II Hunter syndrome), a rare lysosomal disease characterized by iduronate-2-sulfatase deficiency, have cognitive impairment. This observational, prospective, longitudinal study (NCT01822184) assessed cognitive status and adaptive behavior in patients aged 2− 70 (n=26) were −2.4 (p=0.5657) at month 12 and −7.4 (p=0.1461) at month 24. Similarly, for VABS-II ABC scores, differences in LSM changes from baseline between the GCA subgroups (≤70/>70) were −1.9 (p=0.5545) at month 12 and 0.3 (p=0.9484) at month 24. Overall, cognitive ability and adaptive behavior in the pediatric MPS II population who completed this study remained relatively stable over 24 months. However, some patients experienced a rapid decline in cognitive ability, while others retained stable, but impaired, cognitive function. Shire funded this study and medical writing support.
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