Darbepoetin alfa administered once monthly maintains haemoglobin levels in stable dialysis patients.
نویسندگان
چکیده
BACKGROUND Darbepoetin alfa, a glycoprotein that stimulates erythropoiesis by the same mechanism as endogenous erythropoietin, has a 3-fold longer terminal half-life than recombinant human erythropoietin, allowing for an extended dosing interval. Darbepoetin alfa is currently recommended for once-weekly and once every 2 weeks administration in patients with chronic renal failure (CRF). The objective of this study was to explore once-monthly administration in this patient population. METHODS Clinically stable dialysis patients (mean haemoglobin concentration, 10.0-13.0 g/dl) receiving stable darbepoetin alfa therapy administered once every 2 weeks in a long-term treatment study were converted to darbepoetin alfa once every 3 weeks for 20 weeks and then, if haemoglobin concentrations were successfully maintained between 10.0 and 13.0 g/dl, were converted to darbepoetin alfa once every 4 weeks for 20 weeks. The darbepoetin alfa dose was titrated to maintain haemoglobin within a target range (-1.0 to +1.5 g/dl of baseline haemoglobin, and between 10.0 and 13.0 g/dl). Success with the extended dosing interval was defined as maintenance of mean haemoglobin >/=10.0 g/dl during a 4-week evaluation at the end of the dosing period. RESULTS Of the 54 patients who entered the study, 38 patients were converted to darbepoetin alfa administered once every 4 weeks. Of these, 36 patients were considered evaluable and 30 (83%) of those evaluable patients successfully maintained the target haemoglobin. For successful patients the mean (SD) haemoglobin during evaluation was 11.16 (0.60) g/dl, and the mean change in haemoglobin from baseline to evaluation was -0.26 g/dl (95% CI: -0.51, -0.01). The median change from baseline in average weekly darbepoetin alfa dose was 1.61 microg (95% CI: 0.00, 4.75). Adverse events were consistent with those expected for this patient population. CONCLUSIONS Darbepoetin alfa, administered once monthly, maintained haemoglobin effectively and safely in most dialysis patients stabilized previously on once every 2 weeks dosing. Once-monthly dosing may optimize anaemia management for patients with CRF and for health care providers.
منابع مشابه
Maintenance treatment of renal anaemia in haemodialysis patients with methoxy polyethylene glycol-epoetin beta versus darbepoetin alfa administered monthly: a randomized comparative trial
BACKGROUND Several studies with erythropoiesis-stimulating agents claim that maintenance therapy of renal anaemia may be possible at extended dosing intervals; however, few studies were randomized, results varied, and comparisons between agents were absent. We report results of a multi-national, randomized, prospective trial comparing haemoglobin maintenance with methoxy polyethylene glycol-epo...
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متن کاملTreatment of anaemia in dialysis patients with unit dosing of darbepoetin alfa at a reduced dose frequency relative to recombinant human erythropoietin (rHuEpo).
BACKGROUND Darbepoetin alfa is an erythropoietic agent with a 3-fold longer elimination half-life than recombinant human erythropoietin (rHuEpo), which allows less frequent dosing. This study investigated the safety and efficacy of darbepoetin alfa for treating anaemia in dialysis patients, using a dosing regimen that was independent of the patient's body weight (unit dosing). METHODS Dialysi...
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ورودعنوان ژورنال:
- Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association
دوره 19 4 شماره
صفحات -
تاریخ انتشار 2004