Long-term safety and clinical outcomes of olipudase alfa enzyme replacement therapy in pediatric patients with acid sphingomyelinase deficiency: two-year results

Autor: George A. Diaz, Roberto Giugliani, Nathalie Guffon, Simon A. Jones, Eugen Mengel, Maurizio Scarpa, Peter Witters, Abhimanyu Yarramaneni, Jing Li, Nicole M. Armstrong, Yong Kim, Catherine Ortemann-Renon, Monica Kumar
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Orphanet Journal of Rare Diseases, Vol 17, Iss 1, Pp 1-11 (2022)
Druh dokumentu: article
ISSN: 1750-1172
DOI: 10.1186/s13023-022-02587-0
Popis: Abstract Background Olipudase alfa is a recombinant human acid sphingomyelinase (ASM) enzyme replacement therapy (ERT) for non-central-nervous-system manifestations of acid sphingomyelinase deficiency (ASMD). We report 2-year cumulative safety and efficacy data after olipudase alfa treatment in 20 children (four adolescents [12–17 year], nine children [6–11 year], and seven infants/early child [1–5 year]) with baseline splenomegaly and growth deficits who completed the 1-year ASCEND-Peds clinical trial (NCT02292654) and who continue to receive olipudase alfa in a long-term study (NCT02004704). Efficacy endpoints include spleen and liver volumes, diffusing capacity of the lung for carbon monoxide (DLCO), high-resolution computed tomography (HRCT) lung imaging, lipid profiles, liver function tests, and height Z-scores. Results All 20 former ASCEND-Peds patients completed at least 2 years of olipudase alfa treatment. No patient discontinued and no new safety issue arose during the second year of treatment; 99% of adverse events were mild or moderate. During year 2, one patient had two treatment-related serious events of hypersensitivity that resolved. Mean reductions from baseline in spleen and liver volumes were 61% and 49%, respectively (p
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