Tocilizumab (TCZ) may be an effective treatment for poly-juvenile idiopathic arthritis (pJIA) as for rheumatoid arthritis (RA)

Purpose TNF inhibitors are established treatment for poly-juvenile idiopathic arthritis (pJIA), but there are needs of alternative therapy for refractory patients. Tocilizumab (TCZ) has been widely used for rheumatoid arthritis (RA) in adults, and the effectiveness for systemic JIA has been well-documented. However, the experience on pJIA is limited. We compared the clinical courses of our patients of RA and pJIA to estimate the effectiveness of TCZ.