#ACR19 @rheumnow abs1339 Risk of ImmunoRx related toxicity in pts w/pre-existing AI disease+ malignancy &Rx w/ ICIs comparable to pts w/out preexist AI Dx: IrAEs 32%pts w/only 9% severe,grade 3 irAEs, total 41% toxicity of any grade. most common tox dermatitis 18%& colitis 14%