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Enzyme replacement therapy for mucopolysaccharidosis VI (Maroteaux-Lamy syndrome): experience in Hong Kong.
MedLine Citation:
PMID:  21813902     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
Mucopolysaccharidosis VI (Maroteaux-Lamy syndrome) is a very rare inherited lysosomal storage disease. We evaluated the efficacy and safety of weekly infusions of recombinant human arylsulfatase B as enzyme replacement therapy for two patients in whom this condition was advanced. The primary outcome variables were the distance walked in a 6-minute walk test, forced vital capacity, and ejection fraction. The secondary outcome variables were the number of stairs climbed in a 3-minute stair climbing test, joint mobility, urinary glycosaminoglycan excretion, auto-continuous positive airway pressure study and liver size. After 24 weeks of treatment, patient A walked 40 m (36%) and patient B walked 66 m (58%) more in the walk test than at baseline. After 48 weeks, in patient A the corresponding improvements were 142 m (129%) in the walk test and 33 stairs (60%) in the 3-minute stair climbing test, and in patient B the respective improvements were 198 m (174%) and 77 stairs (140%). There was a significant decline in urinary glycosaminoglycan excretion and improvement in range of motion of joints in both patients. The auto-continuous positive airway pressure study revealed improvements in patient A, while other efficacy variables remained static. There were no drug-related adverse events or allergic reactions reported during and after the infusions of recombinant human arylsulfatase B. Recombinant human arylsulfatase B significantly improves endurance and reduces urinary glycosaminoglycan excretion. The drug is generally safe and well tolerated.
Authors:
W M But; M Y Wong; J Ck Chow; W Ky Chan; W T Ko; S P Wu; M L Wong; T Y Miu; W Y Tse; W Wy Hung; T W Fan; C C Shek
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Hong Kong medical journal = Xianggang yi xue za zhi / Hong Kong Academy of Medicine     Volume:  17     ISSN:  1024-2708     ISO Abbreviation:  Hong Kong Med J     Publication Date:  2011 Aug 
Date Detail:
Created Date:  2011-08-04     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9512509     Medline TA:  Hong Kong Med J     Country:  China    
Other Details:
Languages:  eng     Pagination:  317-24     Citation Subset:  IM    
Affiliation:
Department of Paediatrics, Queen Elizabeth Hospital, 30 Gascoigne Road, Hong Kong.
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