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Clinical Nephrology


Background: Anemia of chronic kidney disease (CKD) has been traditionally treated by erythropoiesis-stimulating agents (ESAs) and/or iron following manual determination of dose. We hypothesized that once-monthly (QM) algorithmically dosed darbepoetin α (DA) and iron administration would successfully treat anemia of CKD in ESA-naive CKD subjects. Methods: QM DA and iron doses were determined via a computerized program targeting a hemoglobin (Hb) of 10.5 - 12.5 g/dl in anemic, ESA-naive, CKD Stages 3 - 5 subjects. Six consecutive QM doses were administered. Hb, ferritin, and transferrin saturation were recorded. Data are presented as means ± standard deviation. Results: Anemia was identified in 133 subjects, with a mean follow-up of 188 days. DA doses and Hb were significantly greater at Months 3 and 6 compared to baseline (p < 0.05); DA doses were 109 ± 68 μg and 118 ± 91, respectively, at Months 3 and 6. Hemoglobin levels were correspondingly 11.3 ± 1.1 g/dl and 11.3 ± 1.0. 78% of patients achieved the target Hb by 6 months of therapy. The elevation of Hb was greater in non-proteinuric than proteinuric subjects at 6 months of treatment (11.6 ± 0.8 g/dl vs. 11.0 ± 1.1; p < 0.05), despite lower DA dose (96 ± 76 μg vs. 139 ± 98; p < 0.05). Conclusion: Successful treatment of the anemia of CKD by QM DA based upon a computerized dosing program was achieved by 6 months in 78% of ESA-naïve, CKD subjects. © 2011 Dustri-Verlag Dr. K. Feistle.

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