在进行了475例心力衰竭及贫血症患者的临床试验后,Amgen公司负责贫血症治疗新药Aranesp开发的Scott Wasserman博士近日在欧洲心脏病学会会议上说:“所有的数据都表明,我们正沿着正确的方向前进。” Wasserman博士表示,尽管目前进行的临床试验只是为了验证药物的安全性而非有效性,但就目前的试验结果来看,Aranesp不仅可以安全的用于心力衰竭患者的治疗,而且可以显著改善临床症状。荷兰Groningen大学医学中心的Dirk J. van Veldhuisen教授表示,目前的结果非常喜人,因为现在还没有一种手段可以有效治疗贫血症引起的心力衰竭,而Aranesp可望为我们提供一种新的治疗手段。 目前Aranesp已经被美国FDA批准用于化疗引起的贫血,Amgen公司希望将其适应症进一步扩大,目前扩大适应症的临床试验正在筹备当中,预计将有3400名患者参与试验。 部分中文阿法达贝泊汀处方资料 1. Aranesp的劑量調整是依照適應症而有所不同。由於有較長的血中半衰期,Aranesp的給藥頻率少於Epoetin alfa (例如:當Epoetin alfa 每週給藥3次,Aranesp則應每週給藥一次)。 a.請勿振搖Aranesp,劇烈振搖可能造成Aranesp蛋白變性,導致Aranesp喪失生物活性。 b.在調配Aranesp之前,應先檢視藥品溶液是否有顆粒或變色的情形。請勿使用有顆粒或變色Aranesp藥品溶液。 c.請勿稀釋Aranesp。 d.請勿將Aranesp與其他藥品溶液混合調配。e.Aranesp為單劑量玻璃瓶裝而且不含防腐劑,開封後未使用的藥品請丟棄。請勿儲存未使用的藥品。 Generic Name: DARBEPOETIN ALFA IN POLYSORBAT Aranesp® is contraindicated in patients with uncontrolled hypertension. Patients with chronic renal failure (CRF) experienced greater risks for death and serious cardiovascular events when administered erythropoiesis-stimulating agents (ESAs) to target higher versus lower hemoglobin levels in two clinical studies. Patients with CRF and an insufficient hemoglobin response to ESA therapy may be at even greater risk for cardiovascular events and mortality than other patients. These events includedmyocardialinfarction,stroke,congestiveheartfailure,andhemodialysis vascular access thrombosis. A rate of hemoglobin rise of > 1 g/dL over 2 weeks may contribute to these risks. Seizures have occurred in patients with CRF participating in Aranesp® clinical trials. Cases of pure red cell aplasia (PRCA) and of severe anemia, with or without other cytopenias, associated with neutralizing antibodies to erythropoietin have been reported in patients treated with Aranesp®. This has been reportedpredominantly in patients with CRF receiving ESAs by subcutaneous administration. PRCA has also been reported in patients receiving ESAs while undergoing treatment for hepatitis C with interferon and ribavirin. A sudden loss of response to Aranesp®, accompanied by severe anemia and low reticulocyte count, should be evaluated. If anti-erythropoietin antibody-associated anemia is suspected, withhold Aranesp® and other ESAs. Aranesp® should be permanently discontinued in patients with antibody-mediated anemia. Patients should not be switched to other ESAs as antibodies may cross-react.
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