Eithne01,
The treatment of chronic myeloid leukemia (CML) has changed significantly since the late 1990s, with the development and subsequent approval by the Food and Drug Administration of
imatinib (in 2001), the first of a class of medications called tyrosine kinase inhibitors, which target the specific abnormality that causes CML.
Before that time, patients were treated with other therapy, including interferon and bone marrow transplant, and had very poor outcomes.