Abstract
背景与目的贝伐珠单抗联合含铂双药化疗被推荐为无驱动基因的晚期非鳞非小细胞肺癌(non-small cell lung cancer, NSCLC)患者的一线治疗方案,但此方案用于二线及以上非鳞NSCLC的研究并不普遍。本研究拟探讨二线及以上应用贝伐珠单抗联合化疗治疗晚期非鳞NSCLC的疗效和安全性。方法回顾性分析郑州大学附属肿瘤医院2014年1月-2017年6月间一线治疗进展后应用贝伐珠单抗的晚期非鳞NSCLC患者的临床资料,采用Kaplan-Meier法、Log-rank检验和Cox模型进行统计分析。结果这项研究共纳入62例患者,总体的客观缓解率(objective response rate, ORR)为32.2%,疾病控制率(disease control rate, DCR)为96.8%。中位无进展生存期(progression-free survival, PFS)为6.4个月(95%CI: 6.05-6.83),中位总生存期(overall survival, OS)为20.4个月(95%CI: 12.98-27.76)。在亚组分析中,脑转移患者与无脑转移患者的中位PFS差异无统计学意义(6.2个月vs 6.4个月,P=0.052)。贝伐珠单抗的应用周期(> 6个或≤6个)是PFS的独立影响因素(P=0.004)。最常见的不良反应有白细胞减少、乏力、恶心、血小板减少和高血压。结论二线及以上应用贝伐珠单抗联合化疗治疗晚期非鳞NSCLC的疗效显著且安全性良好。
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