Clin Cancer Res:紫杉醇加用Napabucasin治疗晚期胃/胃食管交界腺癌的疗效

2022-08-03 MedSci原创 MedSci原创

紫杉醇加用Napabucasin并不能改善预处理的晚期胃腺癌或GEJ腺癌患者的生存预后

2020年,全球约有110万人确诊胃癌,76.9万人死于胃癌。目前,手术仍是胃癌的唯一潜在治愈性治疗措施。但是,约60%的患者确诊时已是局部晚期或已发生转移。几乎所有晚期胃癌患者经一线治疗后都会发生进展,或表现为原发难治性疾病。

BRIGHTER研究旨在比较紫杉醇加用或不加用Napabucasin(也称为BB608或BBI-608,一种靶向STAT3蛋白的新型靶向药)作为二线治疗晚期胃或胃食管交界(GEJ)腺癌的疗效。

该研究是一项双盲的3期临床试验,受试患者被1:1随机分至Napabucasin(480 mg*2/天)+紫杉醇(80 mg/m2,静脉,3-4周一次)组或安慰剂+紫杉醇组。主要终点是总生存期(OS)。次要终点包括无进展生存期(PFS)、客观缓解率(ORR)、疾病控制率(DCR)和安全性。

总体上,共有714位患者被随机分至Napabucasin组(n=357)和安慰剂组(n=357)。72.1%的男性,74.6%的是胃腺癌,46.2%的已发生腹膜转移。中期分析发生了380例死亡后揭盲。发生了565例死亡后进行了最终疗效分析。


两组的OS率

中位随访了6.8个月。Napabucasin组和安慰剂组的OS(6.93 vs 7.36个月)、PFS(3.55 vs 3.68个月)、ORR(16% vs 18%)和DCR(55% vs 58%)均无显著差异。


两组的不良反应发生情况

Napabucasin组和安慰剂组3级及以上不良反应的发生率分别是69.5%和59.7%,3级及以上腹泻的发生率分别是16.2%和1.4%。

综上,紫杉醇加用Napabucasin并不能改善预处理的晚期胃腺癌或GEJ腺癌患者的生存预后。Napabucasin的安全性与既往报道的一致。

原始出处:

Manish A. Shah, Kohei Shitara, Florian Lordick, et al; Randomized, Double-Blind, Placebo-Controlled Phase III Study of Paclitaxel ± Napabucasin in Pretreated Advanced Gastric or Gastroesophageal Junction Adenocarcinoma. Clin Cancer Res 2022; https://doi.org/10.1158/1078-0432.CCR-21-4021

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    2022-08-04 zhouqu_8
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    2022-08-04 yaanren

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