Current management of chronic myelogenous leukemia

Chronic myeloid leukemia constitutes a model in Onco-hematology because it was the first chromosomal anomaly described in a malignant disease but whose leukemogenesis has been particularly well studied thus allowing major therapeutic advances. It is associated with a recurrent genetic anomaly: the Philadelphia chromosome balanced reciprocal translocation t (9; 22) which results in a BCR-ABL fusion gene then an abnormal protein with tyrosine kinase activity responsible for leukemic transformation. It is also the first disease where molecular targeted therapy has been used successfully; including imatinib; these TKIs showed most mutations except the dreaded T315I mutation. This led scientists to develop a third generation TKI; It's Ponatinib. These outpatient treatments allowed for better hematological cytogenetic and molecular responses associated with a better quality of life for patients. However TKIs do not eradicate the disease. However allogeneic hematopoietic stem cell transplantation remains the only curative treatment at present.