Open Label Phase II Study of BAY 43-9006 in Chronic Myelogenous Leukemia (CML) Patients Resistant to Gleevec

Inclusion Criteria:- Have Philadelphia chromosome positive chronic myelogenous leukemia (CML) in chronic phase, as per IBMTR criteria- Have documented hematologic resistance to Gleevec (Imatinib) following a prior hematologic response to Gleevec administered at doses of at least 400 mg/d for at least 3 months.- Have WBC \>20 x 109/L at study entry- Have an ECOG performance status. Status of 0, 1 or 2- Have an anticipated survival of at least 16 weeks.- Be able to comply with study procedures and follow-up examinations.- Signed informed consent must be obtained prior to any study specific procedures. Exclusion Criteria:- Congestive heart failure \> class II as defined by the New York Heart Association Functional Classification (NYHA)- Cardiac arrhythmias requiring antiarrythmics (excluding beta blockers or digoxin)- Active coronary artery disease or ischemia- History of HIV infection or chronic hepatitis B or C - Active clinically serious infections (\> grade 2 NCI-CTC)- Patients with seizure disorder requiring anti-epileptic drugs- History of solid organ allograft