November 29, 2018
November 29, 2018 – Patients with multiple sclerosis (MS) who are treated with Lemtrada® (alemtuzumab) may be at risk for rare but serious cases of stroke, as well as tears in the lining of arteries (arterial dissection) located in the head and neck. These events can lead to death or permanent disability. In most instances, patients developed symptoms within one day of receiving Lemtrada.