490 DiRECT Cohort: An NCORP longitudinal observational trial for disparities in results of immune checkpoint inhibitor treatment between Black and White cancer patients by Song Yao, Shipra Gandhi, Christine B Ambrosone, Warren Davis, Eva Culakova, Guilherme Cantuaria, Lori Sakoda, Igor PuzanovCI, Michelle Janelsins, Thaer Khoury, Elisa Rodriguez, Allison Magnuson, Jennifer M Suga, Rajasree P Chowdry, Lawrence H Kushi, Karen Mustian, Gary R Morrow, Charles Kamen