Beyond blood transfusions: exploring iron chelation therapies in transfusion-dependent beta-thalassemia

Abnormal hemoglobin, or hemoglobinopathy, affects about 7% of the global population. Major hemoglobinopathies like beta-thalassemia and sickle cell disease require regular blood transfusions, leading to chronic iron overload. This review examines the efficacy and safety of deferiprone, an oral iron chelator, in managing iron overload in pediatric patients with transfusion-dependent conditions.

Data were sourced from PubMed, Google Scholar, and relevant articles, focusing on randomized controlled trials (RCTs) published between 2010 and 2023. The search terms included "deferiprone," "iron chelation," "transfusion," "iron overload," "hemoglobinopathies," and "thalassemia." Three RCTs met the inclusion criteria, involving 521 pediatric patients.

The START trial demonstrated that early-start deferiprone significantly reduced iron load compared to placebo, with no severe adverse events. The DEEP-2 study found deferiprone non-inferior to deferasirox in terms of efficacy and safety. Another trial highlighted the benefits of early deferiprone therapy in delaying iron overload symptoms without serious side effects. Common adverse effects included pyrexia, nasopharyngitis, and decreased neutrophil count, but no significant differences in growth parameters, creatinine, or prolactin levels were observed.

Deferiprone shows significant promise in managing iron overload in pediatric patients, with comparable effectiveness to existing therapies and a favorable safety profile. Its oral administration is advantageous for young children. However, long-term studies are needed to fully understand its safety and efficacy. Addressing challenges such as patient compliance and adverse effects through education, personalized medicine, and advanced monitoring techniques can further improve treatment outcomes for beta-thalassemia patients.