- Patients with chronic myelomonocytic leukemia (CMML), refractory anemia (RA), or refractory anemia with ringed sideroblasts (RARS) according to FAB classification OR RA, RARS, refractory anemia with multilineage dysplasia, or RARS with multilineage dysplasia according to WHO classification must meet ≥ 1 of the following criteria: