RR- DS, SP- DS og en enkelt klinisk hændelse, der tyder på DS I alle undersøgelser af dissemineret sklerose viste Extavia sig effektivt at reducere sygdomsaktivitet (akut inflammation i centralnervesystemet og permanente vævsændringer), målt ved brug af magnetisk resonans scanning (MRI).
RR-MS, SP-MS and single clinical event suggestive of MS Extavia was effective in all multiple sclerosis studies to reduce disease activity (acute inflammation in the central nervous system and permanent tissue alterations) as measured by magnetic resonance imaging (MRI).