Abstract | BACKGROUND: METHODS: Data from patients who initiated treatment at <5 years of age were collected from patients' medical records. Baseline and follow-up assessments of common symptoms that led to diagnosis and that were used to evaluate disease progression and treatment efficacy were evaluated. RESULTS: A significant negative correlation was seen with treatment with ERT and urinary GAG levels. Of those with baseline and follow-up growth data, 47% remained on their pre-treatment growth curve or moved to a higher percentile after treatment. Of the 9 patients with baseline and follow-up sleep studies, 5 remained unaffected and 1 patient initially with mild sleep apnea showed improvement. Data regarding cardiac, ophthalmic, central nervous system, hearing, surgical interventions and development are also reported. No patient discontinued treatment due to an adverse event and all that were treatment-emergent resolved. CONCLUSIONS: The prescribed dosage of 1mg/kg IV weekly with galsulfase ERT is shown to be safe and effective in slowing and/or improving certain aspects of the disease, although patients should be closely monitored for complications associated with the natural history of the disease, especially cardiac valve involvement and spinal cord compression. A long-term follow-up investigation of this group of children will provide further information on the benefits of early treatment as well as disease progression and treatment efficacy and safety in this young patient population.
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Authors | Dafne D G Horovitz, Tatiana S P C Magalhães, Angelina Acosta, Erlane M Ribeiro, Liane R Giuliani, Durval B Palhares, Chong A Kim, Ana Carolina de Paula, Marcelo Kerstenestzy, Mara A D Pianovski, Maria Ione F Costa, Francisca C Santos, Ana Maria Martins, Carolina S Aranda, Jordão Correa Neto, Gervina Brady Moreira Holanda, Laércio Cardoso Jr, Carlos A B da Silva, Renata C F Bonatti, Bethania F R Ribeiro, Maria do Carmo S Rodrigues, Juan C Llerena Jr |
Journal | Molecular genetics and metabolism
(Mol Genet Metab)
Vol. 109
Issue 1
Pg. 62-9
(May 2013)
ISSN: 1096-7206 [Electronic] United States |
PMID | 23535281
(Publication Type: Journal Article)
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Copyright | Copyright © 2013 Elsevier Inc. All rights reserved. |
Chemical References |
- Recombinant Proteins
- N-Acetylgalactosamine-4-Sulfatase
- galsulfase
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Topics |
- Child, Preschool
- Enzyme Replacement Therapy
(adverse effects)
- Female
- Follow-Up Studies
- Humans
- Infant
- Infant, Newborn
- Male
- Mucopolysaccharidosis VI
(enzymology, genetics, therapy)
- N-Acetylgalactosamine-4-Sulfatase
(adverse effects, genetics, metabolism, therapeutic use)
- Recombinant Proteins
(adverse effects, genetics, therapeutic use)
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