AACR 2022:谷美替尼对METex14突变的NSCLC治疗效果公布(GLORY试验)

2022-04-11 网络 网络

3-4%的非小细胞肺癌(NSCLC)患者存在间质上皮转化因子第14号外显子跳跃突变(METex14),METex14已成为治疗NSCLC的热门靶点。谷美替尼(Glumetinib,SCC244)是一种

3-4%的非小细胞肺癌NSCLC)患者存在间质上皮转化因子第14号外显子跳跃突变(METex14),METex14已成为治疗NSCLC的热门靶点。谷美替尼(Glumetinib,SCC244)是一种高选择性、有效的口服c-MET抑制剂。Glumetinib(SCC244)是一种有效的、具有高度选择性的c-Met抑制剂,IC50为0.42±0.02nmol/ChemicalbookL。SCC244对c-Met的选择性比对其他312种所检测激酶(包括RON、Axl、Mer和TyrO3)高2400倍以上。

上海市胸科医院陆舜团队首次汇报了SCC244在METex14突变的NSCLC患者中进行的单臂、II临床试验(GLORY试验)的试验结果。GLORY试验是一项开放性、国际性、多中心、单臂II期临床试验,旨在评估SCC244治疗局部晚期或转移性NSCLC患者的有效性和安全性,这些患者均携带METex14突变(中心实验室确认),并且一线或二线药物系统治疗后失败,或者在充分评估后不符合或者拒绝接受化疗。

在21天的治疗周期内,每天一次(QD)口服300毫克SCC244,直到疾病进展或出现不可耐受的毒性。前8个治疗周期每6周评估一次肿瘤情况,之后每9周评估一次。主要终点是盲法独立审查委员会(BIRC)根据RECIST 1.1评估的客观缓解率(ORR),次要终点包括研究者评估(INV)的ORR、响应持续时间(DoR)、反应时间(TTR)和安全性等。进行事后分析以探讨颅内抗肿瘤活性。

截止2021年5月6日,从来自42个地区的163位患者中筛选出73例,在300毫克QD剂量下进行治疗。其中69例经中心实验室确认为METex14突变。在69名患者中,经BIRC评估,总体ORR为60.9%(95%CI:48.4%-72.4%)未接受过治疗的患者和之前接受过治疗的患者的ORR分别为66.7%(95%CI:50.5-80.4)和51.9%(95%CI:31.9-71.3)。

中位DoR为8.2个月(95%CI:4.8,NE),中位PFS为7.6个月(95%CI:4.2,NE),42名应答者中有30人的肿瘤反应仍在进行。反应发生得很快,中位TTR为1.4个月(范围:1.2,4.2)。10名有脑转移的患者中,有8名观察到部分反应5名被选为靶向病灶的脑转移患者在INV下有颅内反应,颅内肿瘤缩小的中位数为57%(范围:34%,71%)。

最常见(20%)的治疗相关不良事件(TRAEs)是外周水肿、头痛、恶心、食欲减退、低蛋白血症、谷丙转氨酶(ALT)升高和呕吐。3级TRAEs的发生率为43.8%,6.8%的患者因TRAEs导致治疗中断,其中最常见的原因是外周水肿(4.1%)。

综上数据显示,SCC244对具有METex14突变的NSCLC患者在不同的治疗线中具有较高和强大的疗效,并具有明显的颅内抗肿瘤活性。这些数据支持SCC244作为METex14 NSCLC患者的一种有价值的靶向治疗选择。

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    2022-11-16 一闲
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    2022-04-13 10518094zz
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    2022-04-13 heli0118