In NPM1mut AML pts 9/15 (60%) showed immune responses against all four epitopes...the immune effect in NPM1mut patients increased markedly with the epitope NPM1 and even more when anti-PD-1 was added to CFI, with a mean reduction of 47%. All 15 showed a reduction with anti-PD1, even those that did not show any reduction with the epitope NPM1 alone.