One of the complete responders with an EGFRΔEx19 mutation had infused TILs recognizing a somatic mutation (TMPRSS11FS306L) and several MAGE cancer‐testis antigens (MAGE‐A6, MAGE‐A4, MAGE‐A1) abnormally expressed in the tumor. This evidence concerns the gene MAGEA4 and neoplasm.