PReS-FINAL-2166: Long-term safety and effectiveness of anti-interleukin-6 receptor monoclonal antibody, tocilizumab, in patients with systemic juvenile idiopathic arthritis in Japan

Introduction Systemic-onset juvenile idiopathic arthritis (sjia) is a form of childhood chronic arthritis of unknown etiology with systemic manifestations such as remittent fever and erythematous rash, lymph adenopathy, hepatosplenomegaly, and/or serositis. Tocilizumab (TCZ) is a humanized anti-IL-6 receptor monoclonal antibody that has been approved for the treatment of patients with sjia. Results of the lead-in phase; the placebo-controlled, double-blind phase; and the first 48 weeks of an openlabel extension have been already published.