Prolonged irAEs? 318 pts treated with anti–PD-1 therapy for melanoma, 64% had acute irAEs (14%) grade 3-5). Chronic (>3 mos) irAEs, seen in 46% (half >=grade 2, 68% had Sxs). Most commonchronic irAEs= hypothyroid (70%), arthritis (33%), dermatitis (17%) https://t.co/5SNeLTTPSk https://t.co/d6L5lnSwJR