Multiple sclerosis (MS) treatment with Campath-1H

Use of Campath-1 H for the production of a drug to reduce the risk of recurrence in a patient who has a relapsing form of multiple sclerosis (MS) who has received prior therapy for MS, in which treatment with Campath-1 H it comprises a first treatment cycle of Campath-1 H followed by at least one additional treatment cycle of Campath-1 H, in which each treatment cycle comprises 1-5 daily doses that are applied on consecutive days, in which the daily dose is> 0 and <= 12 mg, and in which each treatment cycle is separated from the next treatment cycle in at least 1-24 months, in which said first treatment cycle of Campath-1 H is administered at a dose of 12 mg / day for five days, and in which said patient is treated again at 12 months after said first treatment cycle with an additional treatment cycle of Campath-1 H at a dose of 12 mg / day for three days