A Retrospective Study to Understand the Clinical Management of Subjects With Multiple Sclerosis at a Site in Taiwan Over the Last 10 Years

This is an observational, non comparative, non-randomised, open-label, retrospective, single centre study planned to collect the data of subjects diagnosed with multiple sclerosis (MS) as per Poser or McDonald criteria between 1997 and 2007 in Taiwan. The clinical features and annual relapse rate in the first five years after the onset of disease have been compared between conventional and optico-spinal MS in the earlier studies. This study aims to understand the clinical care pathway of MS subjects and facilitate the subject's diagnosis before converting to MS.