6. Patients must have adequate bone marrow function as evidenced by absolute neutrophil count (ANC) ≥ 1.0 X 109/L, hemoglobin ≥ 9.0 g/dL (a hemoglobin < 9.0 g/dL at Screening is acceptable if it is corrected to ≥ 9 g/dL by growth factor or transfusion prior to first dose), and platelet count ≥ 75 X 109/L (platelet counts below 75 X 109/L may be re-screened within 4 weeks of chemoradiotherapy);