Fibrosing rheumatic diseases (scleroderma, MCTD, IgG4-related disease, scleroderma mimics)
Tsutomu Takeuchi, MD, PhD
Div. Rheumatology, Keio University
Yoshiya Tanaka, MD, PhD
University of Occupational and Environmental Health, Japan
Hisanori Umehara, MD
Department of Rheumatology and Immunology, Nagahama City Hospital,
Mitsuhiro Kawano, MD, PhD
Kanazawa University
Hajime Yoshifuji, MD, PhD
Kyoto University
Yuko Kaneko, MD, PhD
Keio University
The concept of IgG4-related diseases originated in Japan about 15 years ago. The concept, diagnostic criteria and treatment of the IgG4-related diseases have been emerging. At this session, two faculty experts will present seminars on updates in IgG4-related disease. Talks will explore IL-6, which was first reported in Japan in 1986, and the anti-IL-6 receptor antibody tocilizumab, which was initially approved for the treatment of rheumatoid arthritis in Japan. Tocilizumab's application has been expanded to other refractory diseases, including large-vessel arteritis and adult-onset Still's disease. This session will review differential diagnosis of IGg4-related diseases, optimal therapeutic strategies, and the efficacy and safety of IL-6 inhibition therapy in this patient population, as well as those with large-vessel vasculitis and adult-onset Still's disease.