Table 3

Clinical effect of NABs in MS patients treated with interferon beta

StudyStudy periodPlaceboNABs−NABs+p Value
Betaferon/Betaseron27Phase III RRMS2 years1.060.561.080.001
    Attack rate:
Avonex19Phase III RRMS2 years1.6 (82)0.5 (63)1.7 (18)0.062
    MRI–Gd lesions: mean (n)
Rebif25PRISMS Extension4 years
    Attack rateNA0.50.810.002
    T2–active lesionsNA0.31.4<0.001
    Change in T2 volume from baselineNA−8.5%+17.6%<0.001