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Nilotinib: a phenylamino-pyrimidine derivative with activity against BCR-ABL, KIT and PDGFR kinases.

Author(s): Quintas-Cardama A, Cortes J

Affiliation(s): Department of Leukemia, Unit 428, UT MD Anderson Cancer Center, Houston, TX 77030, USA. aquinta@mdanderson.org

Publication date & source: 2008-10, Future Oncol., 4(5):611-21.

Publication type: Review

The BCR-ABL kinase inhibitor imatinib mesylate is currently the standard therapy for patients with chronic myeloid leukemia (CML). However, mutations within the ABL kinase domain interfering with drug binding have been identified as the main mechanism of resistance to imatinib. Multiple distinct BCR-ABL kinase mutant isoforms conferring varying degrees of resistance to tyrosine kinase inhibitors have been reported. Nilotinib is a tyrosine kinase inhibitor 30-fold more potent than imatinib against BCR-ABL kinase. Nilotinib is active against a wide range of imatinib-resistant BCR-ABL mutant isoforms, except for T315I. Results from Phase II studies of nilotinib for patients with CML after failure or intolerance to imatinib therapy have shown a favorable toxicity profile and confirmed the high efficacy of nilotinib in this setting. Studies addressing the activity of nilotinib in newly-diagnosed patients with CML are underway. Furthermore, nilotinib is a potent inhibitor of KIT and PDGFR kinases. Here, we review the preclinical development of nilotinib and the activity of this agent in patients with CML and in tumors driven by KIT and/or PDGFR mutant kinases, such as gastrointestinal stromal tumors and some forms of clonal hypereosinophilia.

Page last updated: 2009-02-08

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