The present invention relates to the use of specific oral dosings. specific oral dosage forms and/or specific oral dose regimens comprising Cladribine for the treatment of progressive forms of Multiple Sclerosis, especially Primary Progressive Multiple Sclerosis and/or Secondary Progressive Multiple Sclerosis, and methods of treatment based thereon.本發明係關於包含克拉屈濱之特定經口給藥、特定經口劑型及/或特定經口劑量療程的用途,其用於治療進展型多發性硬化症,尤其原發性進展性多發性硬化症及/或繼發性進展性多發性硬化症,且係關於基於其之治療方法。