智通财经APP获悉，10月20日，安斯泰来(ALPMY.US)宣布美国FDA已批准其靶向Claudin18.2(CLDN18.2)抗体Vyloy(zolbetuximab)与含氟嘧啶和铂类的化疗方案联合，用于局部晚期不可切除或转移性、HER2阴性的胃癌或胃食管结合部(GEJ)腺癌成人患者的一线治疗，这些患者的肿瘤需通过FDA批准的检测确定为CLDN18.2阳性。值得一提的是，此次批准比原定的PDUFA日期11月9日提前了三周。根据新闻稿，Vyloy是美国FDA批准的首个CLDN18.2靶向疗法。
胃癌是全球常见的一种癌症，也是全球常见的癌症死因之一。腺癌是胃癌的主要组织学亚型，大约占全球报告病例的90%以上。据统计，超过70%的胃癌患者在确诊时已经处于晚期阶段，他们急需创新疗法。Claudin是正常组织紧密连接中重要的一种蛋白质，具有4个跨膜结构域，它参与细胞旁通透性和电导等过程的调节。CLDN18.2在包含胃癌在内的消化道癌症中高度表达。因此，CLDN18.2为治疗胃癌、胰腺癌等实体肿瘤的有效靶标。
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