NEJM:R-CHOP联合利妥昔单抗维持治疗对外套细胞淋巴癌老年患者有效

2012-08-10 SHUMUFENG 丁香园

外套细胞淋巴瘤老年患者的长期预后往往不良。化学免疫疗法的完全缓解率低,大部分患者有复发的风险。荷兰Groningen大学医学中心H.C. Kluin-Nelemans博士等研究者评估了包含氟达拉滨的诱导疗法是否能改善完全缓解率以及利妥昔单抗维持疗法可否延长缓解期。他们的研究结果显示R-CHOP诱导并继之以利妥昔单抗维持治疗对外套细胞淋巴癌老年患者有效。相关论文发表于国际权威杂志NEJM 2012年

外套细胞淋巴瘤老年患者的长期预后往往不良。化学免疫疗法的完全缓解率低,大部分患者有复发的风险。荷兰Groningen大学医学中心H.C. Kluin-Nelemans博士等研究者评估了包含氟达拉滨的诱导疗法是否能改善完全缓解率以及利妥昔单抗维持疗法可否延长缓解期。他们的研究结果显示R-CHOP诱导并继之以利妥昔单抗维持治疗对外套细胞淋巴癌老年患者有效。相关论文发表于国际权威杂志NEJM 2012年8月9日在线版。


研究人员随机指定了60岁以上II 至IV期的不适合高剂量治疗的外套细胞淋巴瘤患者,分别接受6个周期利妥昔单抗,氟达拉滨,以及环磷酰胺(R-FC)治疗,每28天为一周期,或接受8周期的利妥昔单抗,环磷酰胺,阿霉素以及长春新碱,强的松(R-CHOP)治疗,每21天为一周期。受试者疾病发生进展时根据反应情况随机接受利妥昔单抗或干扰素α维持治疗。

 
结果显示,在纳入试验的560例患者中,有532例完成了关于治疗反应的意向分析,其中485例患者进行了反应的首要分析。患者平均年龄为70岁。虽然R-FC 组与R-CHOP组完全缓解率相似(40% VS 34%; P=0.10),R-FC组疾病进展现象发生更为频繁(14%, vs. R-CHOP 组5% )。R-FC治疗组的总体生存期比R-CHOP组患者显著性缩短(4年生存率, 47% vs. 62%; P=0.005),首期缓解中R-FC组有更多患者死亡(10% vs. 4%)。与R-CHOP组相比,R-FC组有更多的血液学毒性事件发生,但3至4级感染事件的发生频率两组相似(17% VS 14%)。对于随机纳入维持治疗组的316例患者中的274例患者,利妥昔单抗使其疾病进展或死亡的风险下降了45%(4年后缓解率,58%, vs. 干扰素α组29%;疾病进展或死亡的风险比,0.55; 95% 置信区间, 0.36 至0.87; P=0.01)。研究者发现,对R-CHOP作出反应的患者,利用利妥昔单抗进行维持治疗可显著性改善总体生存率(4年生存率,87%, vs. 干扰素α组63%; P=0.005)。

 
研究人员由此得出结论,R-CHOP诱导并继之以利妥昔单抗维持治疗对外套细胞淋巴癌老年患者有效。

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