Journal
BLOOD PURIFICATION
Volume 47, Issue -, Pages 63-69Publisher
KARGER
DOI: 10.1159/000496640
Keywords
Erythropoiesis-stimulating agent therapy; Ferric citrate hydrate; Phosphate; Iron metabolism; Saccharated ferric oxide; Sucroferric oxyhydroxide
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Aims: This study assessed the impact of iron administration on serum fibroblast growth factor 23 (FGF23) levels. Methods: Of 123 hemodialysis (HD) patients treated with erythropoiesis- stimulating agents, 22 received once-weekly intravenous iron and 17 received daily oral iron with iron-containing phosphate binders. Intact FGF23 and biomarkers of iron metabolism were measured from blood samples drawn before each HD session, at baseline and on days 3, 5, 7, and 14. Results: Phosphate levels did not differ among the 3 groups during the 14-day period. Ferritin levels were significantly increased in both iron treatment groups compared with the non-iron treatment group, but changes in transferrin saturation levels were similar in the intravenous iron and non-iron groups. However, intact FGF23 levels were continuously higher in the intravenous iron group than those in the other groups. Conclusion: Intravenous iron administration may influence intact FGF23 levels in HD patients independently of phosphate and iron metabolism. (c) 2019 S. Karger AG, Basel
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