U-2520

TREATING MS WITH ORAL CLADRIBINE ACC. TO THE STEPS (I) INDUCTION PERIOD WITH ABOUT 1.7 MG/KG-3.5 MG/KG CLADRIBINE; (II) CLADRIBINE-FREE PERIOD OF ABOUT 8-10 MONTHS; (III) MAINTENANCE PERIOD WITH ABOUT 1.7 MG/KG CLADRIBINE; (IV) CLADRIBINE-FREE PERIOD