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未经治疗的贫血在癌症病人中很多见。既往研究证实，癌症本身及化疗二者都可抑制机体在贫血时发生的正常的内源性红细胞生成反应，致使部分病人需要输血。用安慰剂作对照，给癌症化疗病人注射α-促红素以提高血红蛋白（Hb）水平，减少输血需求。Ⅲ期临床研究中观察到，凡红细胞
Untreated anemia is common in cancer patients. Previous studies have confirmed that both cancer itself and chemotherapy can inhibit the normal endogenous erythropoiesis that occurs in the body during anemia, resulting in some patients requiring blood transfusions. Using placebo as a control, α-erythropoietin was injected into patients with cancer chemotherapy to increase hemoglobin (Hb) levels and reduce blood transfusion requirements. Phase III clinical studies have observed that all red blood cells