Safety and Efficacy of Tocilizumab in Patients With Myelin Oligodendrocyte Glycoprotein Antibody-associated Disease

Tocilizumab will be intravenously administered as the dosage of 8 mg/kg every 4 weeks, with oral prednisone.

Prednisone tapering protocol : If the starting dose is over 20mg/day, then reduce by one tablet weekly. Until the dose is reduced to 20mg/day then 20mg/day for two weeks→17.5mg/day for two weeks→12.5mg for four weeks→10mg for four weeks→7.5mg as a maintain dosage