Chronic myelogenous leukemia (CML) is a clonal hematopoietic stem cell diso
rder characterized by the (9:22) translocation and resultant production of
the constitutively activated bcr-abl tyrosine kinase. Characterized clinica
lly by marked myeloid proliferation, it invariably terminates in an acute l
eukemia. Interferon-based regimens and stem cell transplantations are the s
tandard therapeutic options, with stem cell transplantation being the only
curative therapy. As therapy for CML improves, molecular methods of monitor
ing response will become integrated in patient treatment. Through rational
drug development, ST1571, a bcr-abl tyrosine kinase inhibitor, has emerged
as targeted therapy that offers new hope for expanded treatment options for
patients with CML. Curr Opin Oncol 2001, 13:3-7 (C) 2001 Lippincott Willia
ms & Wilkins, inc.