机构地区:[1]首都医科大学附属北京胸科医院肿瘤内科,北京101149
出 处:《结核病与胸部肿瘤》2012年第3期180-184,共5页Tuberculosis and Thoracic Tumor
摘 要:背景与目的贝伐珠单抗是首个针对VEGF的人源化单克隆抗体,美国FDA已批准其联合紫杉醇,卡铂方案用于非鳞非小细胞肺癌(non-squamous non-small cell lung cancer,NSNSCLC)的一线治疗。SAiL(MO19390)研究是一项开放、非对照、国际多中心临床研究,旨在评价贝伐珠单抗联合化疗一线治疗晚期NSNSCLC患者的安全性与疗效。本文13例患者来自本研究中心入组SAiL研究的患者。方法贝伐珠单抗15mg/4kg,化疗d1静点,以后每3周重复;联合化疗方案为紫杉醇:175mg/m^2,d1,卡铂:AUC=6,d1,每3周重复。化疗应用4~6周期,贝伐珠单抗每3周应用一次直至病情进展。评价不良反应、客观有效率(objective response rate,ORR)、中位无进展生存期(progression free survival,PFS)和总生存期(overall survival,OS)。同时,我们对可取得肿瘤组织标本的患者进行回顾性EGFR和KRAS突变检测。结果发生5级肺动脉栓塞1例,4级脑梗塞1例,4级蛋白尿2例,3级鼻出血1例。最常见的不良反应为鼻出血(69.2%)、蛋白尿(46.2%)、高血压(38.5%)、咯血(30.8%)、流涕(30.8%)、头晕(23.1%),大多程度较轻可以耐受。部分缓解(partial response,PR)7例(53.8%),疾病稳定(stable disease,SD)6例(46.2),总有效率53.8%,疾病控制率100%,中位PFS7.7个月,中位OS16.1个月。6例可进行EGFR和KRAS突变检测的患者中,1例存在EGFR19外显子缺失突变,1例存在21外显子L858R点突变,4例未检测到EGFR敏感突变,6例患者KRAS突变均为阴性。结论贝伐珠单抗联合紫杉醇/卡铂方案一线治疗中国NSNSCLC患者耐受性良好,可延长PFS和OS。Background and objective Bevacizumab is the first recombinant humanized monoclonal antibody that selectively binds to and neutralizes the biologic activity of human vascular growth factor (VEGF) . The SAiL (MO19390) trial is an open, international multieenter, singlearm clinical study that assesses the safety and efficacy of first-line bevacizumab combined with chemotherapy in patients with advanced non-squamous non-small cell lung cancer (NSNSCLC) . The current study reported the result of 13 patients who were treated at Beijing Chest Hospital as a part of the SAiL study. Method Patients with advanced NSNSCLC were treated with bevacizumab 15 mg/kg, dl, repeated every 3 weeks until PD; Pluse paclitaxel 175 mg/m2, on dl and carboplatin AUC=6 on dl. The cycle was repeated every 3 weeks. Adverse effects (AEs) , objective response rate (ORR) , median progression free survial (PFS) and overall survival (OS) were measured. EGFR and K-RAS gene mutations were analysed retrospectively in patients who had enough tumor samples. Result Grade 5 pulmonary embolism was observed in one patient, grade 4 cerebrovascular event was observed in one patient, grade 4 proteinuria was observed in two patients, and grade 3 epistaxis was observed in one patient. The most frequent AEs were epistaxis (69.2%) , proteinuria (46.2%) , hypertension (38.5%) , hemoptysis (30.8%) , nasal discharge (30.8%) , dizzy (23.1%) . AEs were generally mild and could be well tolerated. The partial response and stable disease rate were 53.8% and 46.2% respectively, disease control rate was 100%. The median PFS and OS were 7.7 and 16.1 months respectively. Six patients had enough tumor sample, one was detected a deletion mutation in exon 19, one was detected the mutation in exon 21 of EGFR gene, and none was detected mutation of K-RAS. Conclusion Bevacizumab combined with paclitaxel plus carboplatin may be well tolerated and benefical for Chinese patients with advanced NSNSCLC.
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