VLADIMIRHACHINSKIMD, FRCPC, DSCMED
THERE IS little doubt that treatment of multiple sclerosis (MS) with type 1 interferons reduces the frequency of clinical exacerbations. This observation has been corroborated repeatedly. Treatment of 124 patients with recombinant interferon beta-1b (IFN-β-1b) reduced the frequency of attacks by 33.8%.1 This reduction was sustained for 5 years but both statistical significance and power were weakened in the later years of the trial, as progressively fewer patients remained in the study. The reduction in the frequency of attacks was associated with a reduction in the severity of attacks, the number of interventions with steroids, and the frequency of hospitalizations.
Rice G, Ebers G. Interferons in the Treatment of Multiple SclerosisDo They Prevent the Progression of the Disease?. Arch Neurol. 1998;55(12):1578-1580. doi:10.1001/archneur.55.12.1578