Hydroxyurea can eliminate transfusion requirements in children with severe β-thalassemia

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Abstract
Hydroxyurea (HU) enhances fetal hemoglobin (Hb) production. An increase in total Hb level has been repeatedly reported during HU treatment in patients with sickle cell disease and in several patients with β-thalassemia intermedia. Effects in patients with β-thalassemia major are controversial. We now report a marked elevation of total Hb levels with HU that permitted regular transfusions to be stopped in 7 children with transfusion-dependent β-thalassemia. The median follow-up was 19 ± 3 months (range, 13-21 months). We conclude that HU can eliminate transfusional needs in children with β-thalassemia major, which could be particularly useful in countries such as Algeria, where supplies of blood or chelating agents are limited.