CD8A and neoplasm: To this end, the patient with PR after therapy had anti-tumor reactivity in 21.1% CD4 REP-TILs and the patient with prolonged SD for almost a year was treated with a CD4 dominated TIL product with anti-tumor reactivity in 8.2% of CD4 REP-TILs, while both showed modest CD8 anti-tumor reactivity.