“…Immune-related adverse events (irAEs) are identified in almost every organ, involving skin, gastrointestinal, endocrine, hepatic, neurologic, ocular, and pulmonary systems. Compared with conventional chemotherapy, overall safety studies show that ICIs cause rash, diarrhea, colitis, pruritis, thyroid toxicity, and pneumonitis; two ICI drugs, or one in combination with chemotherapy, are associated with hepatic toxicity ( 11 – 16 ). IrAEs are coded in severity from grades 1-4, the highest grade being most severe and potentially life-threatening.…”