In the discovery set (AML97 cohort), the PC1 shows positive association with: (A) Ara-CTP levels; (B) improved morphological response; and (C) EFS. Within the validation set (AML02 cohort), PC1 shows: (D) negative association with LC50; (E) MRD; and (F) positive association with EFS.
Ara-CTP: Cytarabine 5´-triphosphate; CR: Complete response; EFS: Event-free survival; MRD: Minimal residual disease; NR: No response; PC1: First principal component; PR: Partial response.