Review of checkpoint inhibitors in 23,897 pts w/ CA & autoimmune Dz. AIRD pts had signif more irAEs (RR 1.3), seen in 61% (36% flares). Most were mild-mod, Rx w/ steroids w/ no impact on cancer response. 32% hospitalized; mortality rate 0.07% https://t.co/xVHhwBATWH https://t.co/rqr3TmMVeK