Discover the power of TYSABRI

Proven results that impact relapsing MS in 3 significant ways

Relapsing MS affects everyone differently. That’s why it’s important that you and your healthcare team find the treatment that’s right for you. In a-2-year clinical study of 627 people treated with 300 mg TYSABRI and 315 people taking placebo, TYSABRI:

Slowed worsening of disability progression

83% of people treated with TYSABRI had no progression of disability (compared to 71% taking placebo)

Reduced the number of relapses

There was a 67% reduction in the average number of relapses per year for people taking TYSABRI compared to placebo (i.e., 0.22 TYS vs 0.67 placebo)

Reduced the number of new brain lesions

97% of people treated with TYSABRI had no new Gd+ lesions on an MRI (compared with 72% of people taking placebo)

57% of people treated with TYSABRI had no new T2 lesions on an MRI (compared with 15% of people taking placebo)

New lesions are thought to show disease activity.

The link between brain lesions and the progression of relapsing MS has not been confirmed.