Side effects of Deferasirox Iron Chelation in Patients with Beta Thalassemia Major or Intermedia

Objectives: Chelating agents remain the mainstay in reducing the iron burden and extending patient survival in homozygous beta-thalassemia but adverse and toxic effects may increase with the institution and long term use of this essential therapy. This study aimed to estimate the incidence of defera...

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Main Authors: Murtadha Al-Khabori, Sunil Bhandari, Mohammed Al-Huneini, Khalil Al-Farsi, Vinodh Panjwani, Shahina Daar
Format: Article
Language:English
Published: Oman Medical Specialty Board 2013-03-01
Series:Oman Medical Journal
Subjects:
Online Access:http://www.omjournal.org/fultext_PDF.aspx?DetailsID=355&type=fultext
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author Murtadha Al-Khabori
Sunil Bhandari
Mohammed Al-Huneini
Khalil Al-Farsi
Vinodh Panjwani
Shahina Daar
author_facet Murtadha Al-Khabori
Sunil Bhandari
Mohammed Al-Huneini
Khalil Al-Farsi
Vinodh Panjwani
Shahina Daar
author_sort Murtadha Al-Khabori
collection DOAJ
description Objectives: Chelating agents remain the mainstay in reducing the iron burden and extending patient survival in homozygous beta-thalassemia but adverse and toxic effects may increase with the institution and long term use of this essential therapy. This study aimed to estimate the incidence of deferasirox (DFX) side effects in patients with thalassemia major or intermedia.Methods: A retrospective study of 72 patients (mean age: 20.3±0.9 yrs; 36 male, 36 female) with thalassemia major or intermedia treated at Sultan Qaboos University Hospital, Oman, was performed to assess the incidence of side effects related to deferasirox over a mean of 16.7 month follow-up period.Results: Six patients experienced rashes and 6 had gastro-intestinal upset. DFX was discontinued in 18 patients for the following reasons: persistent progressive rise(s) in serum creatinine (7 patients; 40% mean serum creatinine rise from baseline), feeling unwell (2), severe diarrhea (1), pregnancy (1), death unrelated to chelator (2) and rise in serum transaminases (2). Three patients were reverted to desferoxamine and deferiprone combination therapy as DFX was no longer biochemically effective after 18 months of therapy. There was no correlation between baseline serum ferritin and serum creatinine or a rise in serum creatinine. Cardiac MRI T2* did not change with DFX therapy. However, there was an improvement in liver MRI T2* (p=0.013).Conclusion: Renal side effects related to deferasirox appear to be higher than those reported in published clinical trials. Further larger studies are required to confirm these findings.
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spelling doaj.art-0a36ef661aac40d9931a44ec79b245452022-12-21T17:56:57ZengOman Medical Specialty BoardOman Medical Journal1999-768X2070-52042013-03-01282121124Side effects of Deferasirox Iron Chelation in Patients with Beta Thalassemia Major or IntermediaMurtadha Al-KhaboriSunil BhandariMohammed Al-HuneiniKhalil Al-FarsiVinodh PanjwaniShahina DaarObjectives: Chelating agents remain the mainstay in reducing the iron burden and extending patient survival in homozygous beta-thalassemia but adverse and toxic effects may increase with the institution and long term use of this essential therapy. This study aimed to estimate the incidence of deferasirox (DFX) side effects in patients with thalassemia major or intermedia.Methods: A retrospective study of 72 patients (mean age: 20.3±0.9 yrs; 36 male, 36 female) with thalassemia major or intermedia treated at Sultan Qaboos University Hospital, Oman, was performed to assess the incidence of side effects related to deferasirox over a mean of 16.7 month follow-up period.Results: Six patients experienced rashes and 6 had gastro-intestinal upset. DFX was discontinued in 18 patients for the following reasons: persistent progressive rise(s) in serum creatinine (7 patients; 40% mean serum creatinine rise from baseline), feeling unwell (2), severe diarrhea (1), pregnancy (1), death unrelated to chelator (2) and rise in serum transaminases (2). Three patients were reverted to desferoxamine and deferiprone combination therapy as DFX was no longer biochemically effective after 18 months of therapy. There was no correlation between baseline serum ferritin and serum creatinine or a rise in serum creatinine. Cardiac MRI T2* did not change with DFX therapy. However, there was an improvement in liver MRI T2* (p=0.013).Conclusion: Renal side effects related to deferasirox appear to be higher than those reported in published clinical trials. Further larger studies are required to confirm these findings.http://www.omjournal.org/fultext_PDF.aspx?DetailsID=355&type=fultextChelatorKidney functionThalassemiaToxicity.
spellingShingle Murtadha Al-Khabori
Sunil Bhandari
Mohammed Al-Huneini
Khalil Al-Farsi
Vinodh Panjwani
Shahina Daar
Side effects of Deferasirox Iron Chelation in Patients with Beta Thalassemia Major or Intermedia
Oman Medical Journal
Chelator
Kidney function
Thalassemia
Toxicity.
title Side effects of Deferasirox Iron Chelation in Patients with Beta Thalassemia Major or Intermedia
title_full Side effects of Deferasirox Iron Chelation in Patients with Beta Thalassemia Major or Intermedia
title_fullStr Side effects of Deferasirox Iron Chelation in Patients with Beta Thalassemia Major or Intermedia
title_full_unstemmed Side effects of Deferasirox Iron Chelation in Patients with Beta Thalassemia Major or Intermedia
title_short Side effects of Deferasirox Iron Chelation in Patients with Beta Thalassemia Major or Intermedia
title_sort side effects of deferasirox iron chelation in patients with beta thalassemia major or intermedia
topic Chelator
Kidney function
Thalassemia
Toxicity.
url http://www.omjournal.org/fultext_PDF.aspx?DetailsID=355&type=fultext
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