Frei Ulrich, Kwan Jonathan T C, Spinowitz Bruce S
Department of Nephrology and Medical Intensive Care, Campus Virchow-Klinikum, Charité-Universitätsmedizin Berlin, Berlin, Germany.
BMC Nephrol. 2009 Feb 25;10:5. doi: 10.1186/1471-2369-10-5.
Anaemia is common in patients with chronic kidney disease (CKD) and can be managed by therapy with erythropoiesis-stimulating agents (ESAs). Epoetin delta (DYNEPO, Shire plc) is the only epoetin produced in a human cell line. The aim of this study was to demonstrate the safety and efficacy of subcutaneously administered epoetin delta for the management of anaemia in CKD patients (predialysis, peritoneal dialysis or haemodialysis)
This was a 1-year, multicentre, open-label study. Patients had previously received epoetin subcutaneously and were switched to epoetin delta at an identical dose to their previous therapy. Dose was titrated to maintain haemoglobin at 10.0-12.0 g/dL. The primary endpoint was mean haemoglobin over Weeks 12-24. Secondary analyses included long-term haemoglobin, haematocrit and dosing levels. Safety was assessed by monitoring adverse events, laboratory parameters and physical examinations.
In total 478 patients received epoetin delta, forming the safety-evaluable population. Efficacy analyses were performed on data from 411 of these patients. Mean +/- SD haemoglobin over Weeks 12-24 was 11.3 +/- 1.1 g/dL. Mean +/- SD weekly dose over Weeks 12-24 was 84.4 +/- 72.7 IU/kg. Haemoglobin levels were maintained for the duration of the study. Epoetin delta was well tolerated, with adverse events occurring at rates expected for a CKD patient population; no patient developed anti-erythropoietin antibodies.
Subcutaneously administered epoetin delta is an effective and well-tolerated agent for the management of anaemia in CKD patients, irrespective of dialysis status.
http://www.controlled-trials.com ISRCTN68321818.
贫血在慢性肾脏病(CKD)患者中很常见,可通过促红细胞生成素(ESA)治疗来控制。δ-促红细胞生成素(DYNEPO,夏尔公司)是唯一一种用人细胞系生产的促红细胞生成素。本研究的目的是证明皮下注射δ-促红细胞生成素治疗CKD患者(透析前、腹膜透析或血液透析)贫血的安全性和有效性。
这是一项为期1年的多中心、开放标签研究。患者此前已接受皮下促红细胞生成素治疗,现改用δ-促红细胞生成素,剂量与之前治疗相同。根据血红蛋白水平调整剂量,使其维持在10.0 - 12.0 g/dL。主要终点是第12 - 24周的平均血红蛋白水平。次要分析包括长期血红蛋白、血细胞比容和给药剂量水平。通过监测不良事件、实验室参数和体格检查评估安全性。
共有478例患者接受了δ-促红细胞生成素治疗,构成安全性可评估人群。对其中411例患者的数据进行了疗效分析。第12 - 24周的平均血红蛋白水平为11.3±1.1 g/dL,平均±标准差每周剂量为84.4±72.7 IU/kg。在研究期间血红蛋白水平保持稳定。δ-促红细胞生成素耐受性良好,不良事件发生率与CKD患者群体预期发生率相符;未出现抗促红细胞生成素抗体的患者。
皮下注射δ-促红细胞生成素是治疗CKD患者贫血的有效且耐受性良好的药物,与透析状态无关。
http://www.controlled-trials.com ISRCTN68321818 。