1250 Molecular predictors and mechanisms of immune checkpoint inhibitor-induced myocarditis: a case-control study with translational correlates by Tingting Chen, Marie Hudson, Rejean Lapointe, Wilson H Miller, Pamela Thebault, Khashayar Esfahani, Jun Ding, Lucas A Salas, Steph A Pang, Manuel Flores Molina, Hsiang Chou, Christophe Goncalves, Paulo Nunes Filho, Sabin Filimon, Caroline M Michel, Sonia VDel Rincon