Abstract
Anaemia is aggravated by the coexistence of chronic kidney disease (CKD) in patients infected with human immunodeficiency virus (HIV). Darbepoetin alfa effectively alleviates CKD-associated anaemia with less frequent dosing than recombinant human erythropoietin (EPO). The current study aimed to determine the efficacy, safety and cost-effectiveness of darbepoetin alfa compared with erythropoietin alfa (EPO-alfa) for treatment of anaemia in HIV-infected subjects receiving haemodialysis. An open label, single arm, prospective study of 12 haemodialysis subjects with HIV infection was conducted for a duration of 6 months after switching from intravenous (i.v.) EPO-alfa two/three times weekly to i.v. darbepoetin alfa once weekly. The primary end point was the proportion of patients maintaining haemoglobin (Hb) levels>or=11 g/dl while a weekly dose of darbepoetin alfa was a secondary end point. Darbepoetin alfa, as effectively as EPO-alfa maintained the proportion of the subjects having Hb levels>or=11 g/dl at an average weekly dose of 40.60 microg compared with an equivalent dose of 51.84 microg for EPO-alfa. Antiretroviral therapy and HIV infection stage remained the same for each specific patient throughout the study period, including the last 6 months of EPO-alfa therapy. No difference in the incidence of adverse effects was observed after switching from EPO-alfa to darbepoietin alfa. Lower doses of darbepoetin alfa at extended dosing interval is as safe and effective as EPO-alfa for treating anaemia, suggesting that darbepoetin alfa is a more cost-effective therapeutic alternative to EPO-alfa in the management of anaemia associated with HIV infection in subjects receiving haemodialysis.
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