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Journal of Cancer Research and Clinical Oncology

, Volume 138, Issue 2, pp 179–187 | Cite as

Addition of iron to erythropoiesis-stimulating agents in cancer patients: a meta-analysis of randomized trials

  • Fausto PetrelliEmail author
  • Karen Borgonovo
  • Mary Cabiddu
  • Veronica Lonati
  • Sandro Barni
Review

Abstract

Background

Iron supplementation could improve the hematopoietic response of erythropoiesis-stimulating agents (ESAs) used for chemotherapy-induced anemia.

Methods

We performed a meta-analysis of randomized, controlled trials by comparing parenteral or oral iron and no iron, when added to ESAs in anemic cancer patients, in order to calculate the relative risk (RR) of hematopoietic response and transfusions, the time required to reach this response, and toxicity.

Results

A total of 1,606 patients out of eight trials were available for meta-analysis. The RR of obtaining an hematopoietic response was 1.29 (P = 0.0001) with parenteral iron and 1.04 for oral iron (P = 0.59). The risk of transfusion was reduced with parenteral iron versus no iron (RR 0.77; P = 0.02) but not with oral iron (RR 0.68; P = 0.08). The time to reach hematopoietic response was 1 month shorter and no increased toxicity appeared with iron supplementation.

Conclusion

Overall parenteral iron reduces the risk of transfusions by 23% and increases the chance of hematopoietic response by 29% when compared with ESAs alone. On the contrary, oral iron does not increase hematopoietic response nor transfusion rate. The significance of these results is that the proportion of non-responders to ESAs will have strongly improved and quality of life and cost ameliorated.

Keywords

Erythropoiesis-stimulating agents Parenteral iron Oral iron Anemia Hematopoietic response Solid tumors 

Notes

Conflict of interest

I certify that no actual or potential conflict of interest in relation to this article exists.

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Copyright information

© Springer-Verlag 2011

Authors and Affiliations

  • Fausto Petrelli
    • 1
    Email author
  • Karen Borgonovo
    • 1
  • Mary Cabiddu
    • 1
  • Veronica Lonati
    • 1
  • Sandro Barni
    • 1
  1. 1.Oncology Unit, Azienda Ospedaliera Treviglio-CaravaggioTreviglioItaly

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