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Hemoglobin
international journal for hemoglobin research
Volume 44, 2020 - Issue 6
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Short Communications

Calcium Channel Blockers in Conjunction with Standard Iron-Chelating Agents for β-Thalassemia Major: Systematic Literature Search

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Pages 446-450 | Received 29 Aug 2020, Accepted 10 Nov 2020, Published online: 12 Jan 2021
 

Abstract

Thalassemia is a genetic mutation of the α- or β-globin chains that lead to defective erythropoiesis. This study aimed to collect evidences from all published studies that investigated the clinical effectiveness of calcium channel blockers (CCBs) in conjunction with chelation therapy for reducing iron overload in patients with thalassemia. A systematic search was conducted in PubMed, Institute for Scientific Information (ISI) Web of Science, Scopus, Cochrane Central Register of Controlled Trials, and Virtual Health Library. Original studies reporting the use of CCBs in patients with thalassemia were included for meta-analysis. A total of five randomized studies including 210 patients were included with a follow-up period of 3–12 months. There was no significant difference between amlodipine and control groups in increasing the heart T2* magnetic resonance imaging (MRI) [mean difference (MD) 95% confidence interval (95% CI) = –1.9 (–4.4 to 0.5), p = 0.119] or reducing the liver iron concentration [MD 95% CI = −0.046 (–0.325 to 0.2), p = 0.746]. Although there were no serious adverse events reported in the included trials, further studies are recommended to strengthen our findings.

Acknowledgement

The authors thank Dr. Ali Basheer Alazmi, the program director of the Saudi Board of Family Medicine in Qurayyat, Kingdom of Saudi Arabia, for his continuous support and directions while conducting this research.

Disclosure statement

The authors report no conflicts of interest. The authors alone are responsible for the content and writing of this article.

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