J Clin Oncol:PIK3CA激活突变肿瘤的新药物——Copanlisib!

2022-02-11 Nebula MedSci原创

Copanlisib在携带PIK3CA突变的难治性肿瘤中的抗肿瘤活性未来可期!

在多种类型肿瘤中都有观察到PIK3CA的激活突变。NCI-MATCH (EAY131) 是一项与肿瘤不限的平台试验,根据匹配的基因组变异招募患者进行靶向治疗。

Copanlisib是由拜耳研发的一种PI3K抑制剂,对恶性B细胞中表达的PI3K-α和PI3K-δ的两种亚型均有很好的抑制活性。

Arm Z1F 评估了 Copanlisib 在携带 PIK3CA 突变(有或没有 PTEN 丢失)的患者中的抗肿瘤活性。

受试患者接受 Copanlisib (60 mg 静滴,1次/周,连用3周停1周)治疗直到病情进展或出现不可耐受的毒性。排除携带KRAS突变、人表皮生长因子受体2阳性的乳腺癌和淋巴瘤。主要终点是中心评估的客观缓解率(ORR),次要终点包括无进展生存期、6个月无进展生存期和总生存期。

受试患者PIK3CA突变的分布情况

共招募了35位不同肿瘤的患者(最常见的是妇科和胃肠道肿瘤,各有6例),其中25位被纳入了主要疗效分析。68%的患者既往接受过3线或更多线的治疗。

无进展生存期和总生存期

客观缓解率为16%4/25,p=0.0341,无效率 5%)。最常见的研究治疗中断的原因是疾病进展(n=17, 68%)。观察到了3/4级毒性反应与既往报道过的一致。16位患者(53%)经历了3级毒性反应,1位患者发生了4级毒性反应。最常见的毒性反应有高血糖(n=19)、疲劳(n=12)、腹泻(n=11)、高血压(n=10)和恶心(n=10)。

综上,该研究的客观缓解率为16%(p=0.0341),达到了其主要终点,提示Copanlisib在携带PIK3CA突变的难治性肿瘤中具有一定的抗肿瘤活性

 

原始出处:

Senthil Damodaran, et al. Phase II Study of Copanlisib in Patients With Tumors With PIK3CA Mutations: Results From the NCI-MATCH ECOG-ACRIN Trial (EAY131) Subprotocol Z1F. Journal of Clinical Oncology. February 8, 2022. https://ascopubs.org/doi/full/10.1200/JCO.21.01648.

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    2022-06-06 minlingfeng
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    2022-04-30 xinmeili
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    2022-02-12 查查佳佳

    大流行病,迄今为止,全世界估计有3.19亿例病例和550万例患者死亡。

    0

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    2022-02-12 ms6000001712328218

    提示Copanlisib在携带PIK3CA突变的难治性肿瘤中具有一定的抗肿瘤活性。

    0

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