Characteristic | Placebo (n = 476) | Peginterferon beta-1a 125 μg every 4 weeks | Peginterferon beta-1a 125 μg every 2 weeks |
---|---|---|---|
(n = 462) | (n = 457) | ||
Mean change from baseline in T2 lesion volume, cm3, at 24 weeks | 0.34 | 0.14 | −0.22 |
P value vs. placebo |  | p = 0.0006 | p < 0.0001 |
P value vs. every 4 weeks | - | - | p < 0.0001 |
Mean change from baseline in T2 lesion volume, cm3, at 48 weeks | 0.77 | 0.06 | −0.26 |
P value vs. placebo |  | p < 0.0001 | p < 0.0001 |
P value vs. every 4 weeks | - | - | p < 0.0001 |
Mean change from baseline in TI hypointense lesion volume, cm3, at 24Â weeks | 0.29 | 0.31 | 0.18 |
P value vs. placebo |  | p = 0.22 | p = 0.0002 |
P value vs. every 4 weeks | - | - | p = 0.014 |
Mean change from baseline in TI hypointense lesion volume, cm3, at 48Â weeks | 0.54 | 0.57 | 0.32 |
P value vs. placebo |  | p = 0.18 | p < 0.0001 |
P value vs. every 4 weeks | - | - | p = 0.0032 |