METHOD FOR SELECTING INDIVIDUALS TO BE ADMINISTERED IMMUNE CHECKPOINT INHIBITOR

摘要

(Problem to be Solved) An object is to provide a method for selecting individuals for whom administration of an immune checkpoint inhibitor will be effective by collecting tumor tissue from individuals suffering from tumors and determining the expression levels of B7-H3 in the collected tumor tissue. (Solution) A method for selecting an individual to be a candidate for administration of an immune checkpoint inhibitor in treatment of a tumor, comprising: (1) a step of collecting a tumor tissue from the individual, (2) a step of determining the extent of B7-H3 expression in the tumor tissue collected in step (1), and (3) a step of selecting the individual as an individual to be a candidate for administration of the immune checkpoint inhibitor if the B7-H3 expression level is considered to be negative, is provided.