Gleevec transforms chronic myeloid leukemia (2001)
The FDA approved imatinib (Gleevec), the first drug engineered to disable the specific protein driving chronic myeloid leukemia. Within two decades, 5-year survival for CML tripled, from 22% in the mid-1970s to 70%. Most patients now live near-normal lifespans on a daily pill.
CML became the proof that targeting a tumor's genetic driver could turn a fatal cancer into a chronic condition.
It established precision oncology — matching drugs to tumor mutations — which now shapes treatment across dozens of cancer types.
Gleevec is the clearest template for the survival gains now spreading to lung, liver, and blood cancers.
