Indication for treatment of patients with myelodysplastic syndromes (mds) including previously treated and untreated, de novo and secondary mds of all french-american-british subtypes (refractory anemia, refractory anemia with ringed sideroblasts, refractory anemia with excess blasts, refractory anemia with excess blasts in transformation, and chronic myelomonocytic leukemia) and intermediate-1, intermediate-2, and high-risk international prognostic scoring system groups (scores =0.5).