JCO:BLOOM研究——Osimertinib在EGFRm和LM非小细胞肺癌患者中的应用

2020-12-16 MedSci原创 MedSci原创

约有3%-4%的晚期非小细胞肺癌(NSCLC)患者会发生脑膜上转移(LMs),在表皮生长因子受体突变(EGFRm)的NSCLC中,LM的发生率上升会上升到约9%。Osimertinib是第三代、不可逆

约有3%-4%的晚期非小细胞肺癌(NSCLC)患者会发生脑膜上转移(LMs),在表皮生长因子受体突变(EGFRm)的NSCLC中,LM的发生率上升会上升到约9%。Osimertinib是第三代、不可逆的EGFR-TKI,是获批用于治疗EGFRm晚期和T790M阳性的NSCLC患者在EGFR-TKIs治疗后疾病进展的一种治疗方案。

 

近日,国立台湾大学附属医院开展的BLOOM研究评估了osimertinib在EGFRm 晚期LMs患者中的疗效和安全性,这些患者在经过EGFR-TKI治疗后病情仍有进展。结果发现,Osimertinib可有效治疗LMs,且在EGFRm NSCLC和LM患者中,每日一次160mg的剂量,安全性可控,研究已在线发表于J Clin Oncol。

研究纳入了41名细胞学证实LM患者,接受osimertinib160mg,每天一次。评估客观反应率(ORR)、反应持续时间(DoR)、无进展生存期(PFS)、总生存期(OS)、药代动力学(PK)和安全性。此外,研究人员还评估了CSF细胞学和神经学检查相对基线的变化。

 

结果显示,神经放射学BICR的LM ORR和DoR分别为62%(95% CI,45%~78%)和15.2个月(95% CI,7.5~17.5个月)。总体而言,ORR为41%(95% CI,26%至58%),中位DoR为8.3个月(95% CI,5.6至16.5个月)。中位PFS为8.6个月(95% CI,5.4~13.7个月),中位OS为11.0个月(95% CI,8.0~18.0个月)。40名患者中有11名(28%;95%CI,15%至44%)证实CSF肿瘤细胞清除。基线评估异常的21例患者中,12例患者(57%)的神经功能得到改善。不良事件和PK谱与以往osimertinib的报告一致。

原始出处:

 

James C H Yang , Sang-We Kim, et al., Osimertinib in Patients With Epidermal Growth Factor Receptor Mutation-Positive Non-Small-Cell Lung Cancer and Leptomeningeal Metastases: The BLOOM Study. J Clin Oncol. 2020 Feb 20;38(6):538-547. doi: 10.1200/JCO.19.00457. Epub 2019 Dec 6.

 

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    2021-08-27 爆笑小医
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    2020-12-18 liuyiping
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    2020-12-16 言西早

    约有3%-4%的晚期非小细胞肺癌(NSCLC)患者会发生脑膜上转移(LMs),在表皮生长因子受体突变(EGFRm)的NSCLC中,LM的发生率上升会上升到约9%。

    0

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