Objective To assess the effectiveness and safety of erythropoietin (EPO) for cancer-related malignant anemia without radiotherapy or chemotherapy. Methods Randomized controlled trials (RCTs) or quasi-randomized controlled trials (quasi-RCTs) involving erythropoietin in the treatment of cancer-related malignant anemia were searched and identified from PubMed (1966 to Sept. 2009), EMBASE (1974 to Sept. 2009), The Cochrane Library (Issue 3, 2009), CBM (1978 to Sept. 2009), CNKI (1994 to Sept. 2009), VIP (1989 to Sept. 2009). We also handsearched relevant journals. Data were extracted and evaluated by two reviewers independently with specially designed extraction form. We evaluated the quality of the included studies by the Cochrane Handbook 5.0 recommend standard and analyzed data by Cochrane Collaboration’s RevMan 5.0. Results We included twelve trials. The quality of the included studies was poor. The grade of ten studies was B, and the grade of two studies was C. Meta-analyses showed that there were significant differences between erythropoietin and blank in volume of blood transfusion [SMD= –0.66, 95%CI (–1.14, –0.17), P=0.008], number need to transfusion [OR=0.60, 95%CI (0.39, 0.92), P=0.02], and the change of hemoglobin after two-week therapy [SMD=2.40, 95%CI (0.29, 4.52), P=0.03]. Conclusion The current evidence shows that EPO significantly benefits cancer-related malignant anemia. Well-designed RCTs with a larger sample size, longer intervention and follow-up periods are still needed.
目的:评价重组人红细胞生成素(Recombinant human erythropoietin injection, rHuEpo)治疗肿瘤化疗相关性贫血的疗效和安全性,以及对生存质量的影响。方法:采用随机分组方式,分为治疗组和对照组,分别于1～3周期化疗后6～24小时开始。治疗组(40例)行rHuEpo 治疗,150 U/kg皮下注射每周3次,疗程4～8周;对照组(24例)未用rHuEpo 治疗,其他治疗如中药及支持治疗两组均相同。所有64例患者若出现严重贫血则给予输血治疗,以保证化疗顺利进行。观察rHuEpo 对患者血红蛋白(Hb)、红细胞容积(Hct)、RBC、KPS评分、体重改善情况的影响以及rHuEpo 的毒副反应。结果:与对照组相比,治疗组治疗后Hb水平显著提高,8周有效率70%;2周内网织红细胞计数显著提高;应用无严重副反应发生,生存质量改善。结论:rHuEpo 治疗肿瘤化疗相关性贫血的疗效肯定,副反应少,能够改善患者生存质量。