The development of inhibitors for the tyrosine anaplastic lymphoma kinase (ALK) has advanced rapidly, driven by biology and medicinal chemistry. The first generation ALK inhibitor crizotinib was granted US FDA approva...The development of inhibitors for the tyrosine anaplastic lymphoma kinase (ALK) has advanced rapidly, driven by biology and medicinal chemistry. The first generation ALK inhibitor crizotinib was granted US FDA approval with only four years of preclinical and clinical testing. Although this drug offers significant clinical benefit to the ALK-positive patients, resistance has been developed through a variety of mechanisms. In addition to ceritinib, alectinib is another second-generation ALK inhibitor launched in 2014 in Japan. This drug has a unique chemical structure bearing a 5H-benzo[b] carbazol-11(611)-one structural scaffold with an IC50 value of 1.9 nmol/L, and is highly potent against ALK bearing the gatekeeper mutation L1196M with an IC50 of 1.56 nmoL/L. In the clinic, alectinib is highly efficacious in treatment of ALK-positive non-small cell lung cancer (NSCLC), and retains potency to combat crizotinib-resistant ALK mutations L11.96.M, F1174L, R1275Q and C1156Y. (C) 2015 Chinese Pharmaceutical Association and Institute of Materia Medica, Chinese Academy of Medical Sciences. Production and hosting by Elsevier B.V. All rights reserved.展开更多
文摘背景与目的克唑替尼是针对间变淋巴瘤激酶(anaplastic lymphoma kinase,ALK)融合基因、ROS-1重排等靶点的药物。本文观察克唑替尼治疗ALK/ROS1重排阳性的晚期非小细胞肺癌(non-small cell lung cancer,NSCLC)的近远期疗效。方法对2013年6月-2014年12月于北京肿瘤医院开始接受克唑替尼治疗的40例相应靶点阳性的NSCLC患者进行回顾性分析。结果本组40例,39例为腺癌或腺鳞癌,包括印戒细胞癌、腺泡型、乳头状腺癌等特点。中位年龄49.5岁,治疗总有效率62.5%,疾病控制率为95.0%。全组中位随访14.6个月,中位无进展生存时间(progression free survival,PFS)7.5个月,中位生存期(overall survival,OS)尚未到达,1年生存率77.4%。第一、二线较二线后治疗者中位PFS、OS有延长趋势,但无统计学意义(PFS:9 mo vs 6 mo,P=0.06;OS:21.5 mo vs 14.6 mo,P=0.12)。20例进展者以脑转移为进展部位。进展后接受二代/三代ALK-酪氨酸激酶抑制剂(tyrosine kinase inhibitor,TKI)的患者表现出疾病控制、生存延长的疗效。不良反应主要为消化道反应、转氨酶升高、特征性的视觉异常等。结论本组克唑替尼治疗相应靶点阳性晚期NSCLC临床特点、疗效及不良反应与国际报道相近。脑转移进展是克唑替尼治疗后进展的常见形式,克唑替尼耐药者给予二代/三代ALK-TKI可延迟进展。
基金Financial support from National Natural Science Foundation of China (Nos. 81430080, 81125021 and 81373277)National Science & Technology Major Project on ‘Key New Drug Creation and Manufacturing Program’, China (No. 2012ZX09103-101-035)
文摘The development of inhibitors for the tyrosine anaplastic lymphoma kinase (ALK) has advanced rapidly, driven by biology and medicinal chemistry. The first generation ALK inhibitor crizotinib was granted US FDA approval with only four years of preclinical and clinical testing. Although this drug offers significant clinical benefit to the ALK-positive patients, resistance has been developed through a variety of mechanisms. In addition to ceritinib, alectinib is another second-generation ALK inhibitor launched in 2014 in Japan. This drug has a unique chemical structure bearing a 5H-benzo[b] carbazol-11(611)-one structural scaffold with an IC50 value of 1.9 nmol/L, and is highly potent against ALK bearing the gatekeeper mutation L1196M with an IC50 of 1.56 nmoL/L. In the clinic, alectinib is highly efficacious in treatment of ALK-positive non-small cell lung cancer (NSCLC), and retains potency to combat crizotinib-resistant ALK mutations L11.96.M, F1174L, R1275Q and C1156Y. (C) 2015 Chinese Pharmaceutical Association and Institute of Materia Medica, Chinese Academy of Medical Sciences. Production and hosting by Elsevier B.V. All rights reserved.
