CLINICAL IMPACT OF EARLY MOLECULAR RESPONSE IN CML PATIENTS TREATED WITH IMATINIB


Article ID: 6492
Vol 32, Issue 4S1, 2018
DOI: https://doi.org/10.54517/jbrha6492
Received: 8 September 2018; Accepted: 8 September 2018; Available online: 8 September 2018; Issue release: 8 September 2018

Abstract

The approval of second-generation tyrosine kinase inhibitors (TKIs) for the first line treatment ofChronic Myeloid Leukemia (CML) has generated a need for early molecular parameters predictive ofinadequate responses to the first-generation TKI imatinib mesylate (IM). Several groups have shown thatBCR-ABL/ABLIS transcript levels <10% after 3 months (mos) or <1% after 6 mos of IM are stronglyassociated with superior clinical outcomes. We wanted to investigate which BCR-ABL threshold wouldbe more reliable in predicting treatment outcome in patients (pts) with discordant molecular transcriptsat the 3 and 6 mos time points, and also wished to evaluate if early molecular responses predicted theprobability of achieving a sustained deep molecular response.



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