Analysis of AML blasts from HLA‐A*02 patients on the AZA/VOR clinical trial after three and six cycles of therapy identifies upregulation of the five families of CTA expression (MAGE, RAGE, LAGE, SSX2 and TRAG3) compared to before drug administration in individual patients (Fig. 1a) confirming our hypothesis. The gene discussed is SSX2; the disease is acute myeloid leukemia.