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Treating thalassemia major-related iron overload: the role of deferiprone

Authors Berdoukas V, Farmaki, Carson, Wood J, Coates

Received 22 May 2012

Accepted for publication 3 July 2012

Published 19 October 2012 Volume 2012:3 Pages 119—129


Checked for plagiarism Yes

Review by Single-blind

Peer reviewer comments 3

Vasilios Berdoukas,1 Kallistheni Farmaki,2 Susan Carson,1 John Wood,3 Thomas Coates1

Division of Hematology/Oncology, Children's Hospital Los Angeles, Los Angeles, CA, USA; 2Thalassemia Unit, General Hospital of Corinth, Corinth, Greece; 3Division of Cardiology, Children's Hospital Los Angeles, Los Angeles, CA, USA

Abstract: Over the last 20 years, management for thalassemia major has improved to the point where we predict that patients' life expectancy will approach that of the normal population. These outcomes result from safer blood transfusions, the availability of three iron chelators, new imaging techniques that allow specific organ assessment of the degree of iron overload, and improvement in the treatment of hepatitis. In October 2011, the Food and Drug Administration licensed deferiprone, further increasing the available choices for iron chelation in the US. The ability to prescribe any of the three chelators as well as their combinations has led to more effective reduction of total body iron. The ability to determine the amount of iron in the liver and heart by magnetic resonance imaging allows the prescription of the most appropriate chelation regime for patients and to reconsider what our aims with respect to total body iron should be. Recent evidence from Europe has shown that by normalizing iron stores not only are new morbidities prevented but also reversal of many complications such as cardiac failure, hypothyroidism, hypogonadism, impaired glucose tolerance, and type 2 diabetes can occur, improving survival and patients' quality of life. The most effective way to achieve normal iron stores seems to be with the combination of deferoxamine and deferiprone. Furthermore, outcomes should continue to improve in the future. Starting relative intensive chelation in younger children may prevent short stature and abnormal pubertal maturation as well as other iron-related morbidities. Also, further information should become available on the use of other combinations in chelation treatment, some of which have been used only in a very limited fashion to date. All these advances in management require absolute cooperation and understanding of parents, children, and, subsequently, the patients themselves. Only with such cooperation can normal long-term survival be achieved, as adherence to treatment is now likely the primary barrier to longevity.

Keywords: thalassemia, iron overload, iron chelation therapy, magnetic resonance imaging, deferoxamine, deferiprone, deferasirox

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