Early molecular and cytogenetic response is predictive for long-term progression-free and overall survival in chronic myeloid leukemia (CML)

dc.contributor.authorBranford, S.
dc.date.issued2012
dc.description.abstractIn the face of competing first-line treatment options for CML, early prediction of prognosis on imatinib is desirable to assure favorable survival or otherwise consider the use of a second-generation tyrosine kinase inhibitor (TKI). A total of 1303 newly diagnosed imatinib-treated patients (pts) were investigated to correlate molecular and cytogenetic response at 3 and 6 months with progression-free and overall survival (PFS, OS). The persistence of BCR-ABL transcript levels > 10% according to the international scale (BCR-ABLIS) at 3 months separated a high-risk group (28% of pts; 5-year OS: 87%) from a group with >1–10% BCR-ABLIS (41% of pts; 5-year OS: 94%; P=0.012) and from a group with <1% BCR-ABLIS (31% of pts; 5-year OS: 97%; P=0.004). Cytogenetics identified high-risk pts by >35% Philadelphia chromosome-positive metaphases (Phþ, 27% of pts; 5-year OS: 87%) compared with <35% Phþ (73% of pts; 5-year OS: 95%; P=0.036). At 6 months, >1% BCR-ABLIS (37% of pts; 5-year OS: 89%) was associated with inferior survival compared with <1% (63% of pts; 5-year OS: 97%; P<0.001) and correspondingly >0% Phþ (34% of pts; 5-year OS: 91%) compared with 0% Phþ (66% of pts; 5-year OS: 97%; P=0.015). Treatment optimization is recommended for pts missing these landmarks.
dc.description.statementofresponsibilityB. Hanfstein... S. Branford... et al.
dc.identifier.citationLeukemia, 2012; 26(9):2096-2102
dc.identifier.doi10.1038/leu.2012.85
dc.identifier.issn0887-6924
dc.identifier.issn1476-5551
dc.identifier.orcidBranford, S. [0000-0002-1964-3626] [0000-0002-5095-7981]
dc.identifier.urihttp://hdl.handle.net/2440/73655
dc.language.isoen
dc.publisherNature Publishing Group
dc.rights© 2012 Macmillan Publishers Limited All rights reserved.
dc.source.urihttps://doi.org/10.1038/leu.2012.85
dc.subjectChronic myeloid leukemia
dc.subjectimatinib resistance
dc.subjectmolecular response
dc.subjectcytogenetic response
dc.subjectsurvival
dc.subjectprognosis
dc.titleEarly molecular and cytogenetic response is predictive for long-term progression-free and overall survival in chronic myeloid leukemia (CML)
dc.typeJournal article
pubs.publication-statusPublished

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