4. Patients with low risk International Prognostic Scoring System (IPSS 0 or Int-1) myelodysplastic syndrome (MDS) without chromosome 5 (5q) deletion and anaemia with transfusion needs. Transfusion dependence is defined as at least 2 units of erythrocyte concentrate (EC) during the 8 weeks prior to inclusion in the study, and symptomatic anaemia, defined by a haemoglobin value ≤9.0 gr/dl.