2-Chloro-2'-deoxyadenosine, hereinafter referred to as cladribine, or a pharmaceutically acceptable salt thereof may be used in the treatment or amelioration of neuromyelitis optica, hereinafter referred to as NMO e.g. in patients known to have NMO - IgG seropositivity or in patients optic neuritis, myelitis and at least two of MRI evidence of contiguous spinal cord lesion 3 or more segments in length, onset brain MRI nondiagnostic for multiple sclerosis or NMO - IgG seropositivity.
USE OF CLADRIBINE FOR TREATING NEUROMYELITIS OPTICA