Effect of Hydroxyurea on the Frequency of Painful Crises in Sickle Cell Anemia

Abstract excerpt

BACKGROUND: In a previous open-label study of hydroxyurea therapy, the synthesis of fetal hemoglobin increased in most patients with sickle cell anemia, with only mild myelotoxicity. By inhibiting sickling, increased levels of fetal hemoglobin might decrease the frequency of painful crises. METHODS: In a double-blind, randomized clinical trial, we tested the efficacy of hydroxyurea in reducing the frequency of...

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