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  • Title: [Treatment of renal anemia with darbepoetin alfa: results of an Austrian multicenter study].
    Author: Hörl WH, Holzer H, Mayer GJ, Osterreichische Aranesp Studiengruppe.
    Journal: Wien Klin Wochenschr; 2002 Dec 30; 114(23-24):967-71. PubMed ID: 12635463.
    Abstract:
    Darbepoetin alfa is a unique erythropoetic protein whose half-life is 3 times longer than that of recombinant human erythropoetin (rHuEPO). It corrects and maintains haemoglobin (Hb) concentrations at increased dosing intervals as compared to rHuEPO. The aim of this study was to evaluate the efficacy and safety of darbepoetin alfa administered as fixed unit doses. Haemodialysis patients (n = 250) maintained on stable rHuEPO treatment 2-3 times weekly (n = 200) were switched to darbepoetin alfa once weekly (QW). Treatment for patients on rHuEPO QW (n = 50) was changed to darbepoetin alfa every other week (Q2W). The route of administration (i.v. or s.c.) was kept unchanged. The dose of darbepoetin alfa was titrated to maintain Hb levels at 10-13 g/dL between baseline and the evaluation period (weeks 21-24; primary endpoint). There was no clinically relevant change in mean Hb levels between baseline (11.69 g/dL) and evaluation (-0.28 g/dL (95% CI: -0.43; -0.13)). Mean weekly dose requirements of darbepoetin alfa decreased by 13.3% from 36.7 micrograms (95% CI: 33.9; 39.7) to 31.8 micrograms (95% CI: 28.7; 35.2). This decrease was more pronounced in patients receiving darbepoetin alfa i.v. (-18.4%) as compared to those receiving it s.c. (-6.4%). Darbepoetin alfa was well tolerated. Overall safety data were consistent with those observed in other studies. These data confirm that unit dosing with darbepoetin alfa at increased dosing intervals and reduced dose effectively and safely maintains Hb levels in haemodialysis patients.
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