Patients will receive Iressa daily until either disease progression or intolerable toxicity develops. On Day 1 of treatment, a physical exam and bloodwork will be performed. Once weekly for the first 8 weeks, a physical exam and complete blood count with differential will be performed.~For the first year, a physical exam, bloodwork will be performed monthly. Bone marrow biopsies will be performed after the first month of therapy and then every 3 months for the first year. After the first year a physical exam, bloodwork will be performed every 3 months and bone marrow biopsies every 6 months.
The purpose of this study is to determine how effective, and to what extent, Iressa is in the treatment of acute myelogenous leukemia.