BCR and chronic myelogenous leukemia, BCR-ABL1 positive: A phase II study is currently investigating whether CML-CP patients with a sustained complete molecular response (12 months; ≤0.0032 % or 4.5-log reduction of BCR–ABL transcript from standardized baseline) on dasatinib maintain undetectable or minimally detectable BCR–ABL residual disease upon treatment discontinuation (BMS 2013a).