After 15 years of follow-up, patients with relapsing-remitting multiple sclerosis (RRMS) who display disease activity despite treatment with interferon (IFN)β-1a tend to have unfavorable long-term outcomes, according to research published online Sept. 13 in the Annals of Neurology.
Robert A. Bermel, M.D., of the Cleveland Clinic, and colleagues conducted a multicenter, observational, 15-year follow-up study involving 136 patients with RRMS, who had initially been treated with either intramuscular (IM) IFNβ-1a or placebo, to identify early predictors of long-term outcomes.
The researchers found that significantly fewer patients treated with IM IFNβ-1a had early disease activity. Of those treated with IFNβ-1a, persistent disease activity was associated with an 8.96-fold higher risk of gadolinium-enhancing lesions, a 4.44-fold higher risk of relapse, and a 2.90-fold higher risk of new T2 lesions. Conversely, early disease activity in placebo-treated patients was not associated with long-term outcomes.... Read More - http://www.msrc.co.uk/index.cfm/fuseact ... ageid/2479
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