Kyoto U. cohort study of 55 relapsing polychondritis pts (503 Pt-yrs) Rx w/ TNFi, IL-6i or none -- Crude relapse rates were 46.9/100PYs NoBio, 22.4 TNFi, & 12.5 IL-6Ri. Adjusted relapses signif lower w/ TNFi (IRR 0.4) & IL-6Ri (IRR 0.2) vs no biologic. Estimates for hospitalised https://t.co/h6IcVWjqfp