The Lancet Oncology:预防性全脑照射对特定的广泛期小细胞肺癌无效

2017-03-27 MedSci MedSci原创

预防性全脑照射对初始化疗有效和定期接受MRI且证实无脑转移的广泛期小细胞肺癌患者是不必要

先前有研究表明,预防性全脑照射可以降低广泛期小细胞肺癌患者脑转移的发生率并延长总生存期。但由于该研究缺少试验脑成像检查、化疗方案和照射剂量的变化,先前的研究也遭到了质疑。因此研究人员开展了一项III期试验,证实预防性全脑照射对特定的广泛期小细胞肺癌是非必要的,其结果发表于近日的Lancet Oncology。

试验在日本开展,共招募了224名患者,其中113名对含铂双药联合化疗有有效的且无脑转移的广泛期小细胞肺癌患者接受预防性头颅照射(每天2.5 Gy,持续10天),为照射组;其余进入对照组。试验进行中,每3个月所有患者进行一次脑核磁共振,持续12个月,之后的第18、24个月进行脑核磁共振。试验的主要终点是患者的总生存期(OS)。

试验结果显示,照射组的中位生存期为11.6个月(95% CI 9.5-13.3)而对照组的中位生存期为13.7个月(95% CI 0.96-1.68; p=0.094)。三级及以上的不良事件为厌食(6% vs 2%;照射组 vs 对照组)、乏力(3% vs 1%)及下肢肌无力(1% vs 5%),试验中没有发生患者死亡。

结果表明:与对照组相比,预防性全脑照射未能有效的延长广泛期小细胞肺癌患者的生存期,预防性全脑照射对初始化疗有效和定期接受MRI且证实无脑转移的广泛期小细胞肺癌患者是不必要。

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    2017-08-21 howi
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    2017-07-26 minlingfeng
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    2017-03-27 万里江山一孤舟

    学习了

    0

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    2017-03-27 1e135751m36(暂无匿称)

    学习了,感觉放疗的不良反应还要更大。

    0

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