Document Detail

Does interferon beta treatment exacerbate neuromyelitis optica spectrum disorder?
MedLine Citation:
PMID:  22354738     Owner:  NLM     Status:  Publisher    
Objectives: Recent case reports and series have shown that patients with neuromyelitis optica (NMO) experience clinical deterioration under interferon beta (IFN-β) treatment. The objective of the present study was to evaluate whether and to what extent IFN-β exacerbates NMO spectrum disorders (NMOSD).Methods: We retrospectively reviewed the medical records of 40 patients with NMOSD who had been treated with IFN-β for more than 6 months and whose disease duration was more than 1 year at the initiation of IFN-β treatment. We evaluated their annualized relapse rates (ARR) and Expanded Disability Status Scale (EDSS) scores before and after IFN-β treatment.Results: In total, 95% of patients exhibited an ineffective or exacerbated response to IFN-β treatment and the mean ARR significantly increased after IFN-β treatment (p = 0.002). The increased ARR > 50% under IFN-β treatment was observed in 20 patients (50%). The mean EDSS score significantly increased following IFN-β treatment (p < 0.001).Conclusion: In patients with NMOSD, IFN-β treatment is not only ineffective for preventing relapses but also may even increase relapses significantly. Thus, a more careful diagnostic approach to differentiate NMO from multiple sclerosis and attention to decision of treatment is warranted for patients at high risk of NMO.
Su-Hyun Kim; Woojun Kim; Xue Feng Li; In-Ja Jung; Ho Jin Kim
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-2-21
Journal Detail:
Title:  Multiple sclerosis (Houndmills, Basingstoke, England)     Volume:  -     ISSN:  1477-0970     ISO Abbreviation:  -     Publication Date:  2012 Feb 
Date Detail:
Created Date:  2012-2-22     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9509185     Medline TA:  Mult Scler     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Department of Neurology, Research Institute and Hospital of National Cancer Center, Korea.
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