J Clin Oncol:标准风险的ALL患儿在延迟加强阶段能否降低治疗强度?

2017-12-26 张琪 环球医学

2017年发表在《J Clin Oncol》的一项研究调查了标准风险的急性淋巴细胞白血病(ALL)患儿在延迟加强阶段能否降低治疗强度。

2017年发表在《J Clin Oncol》的一项研究调查了标准风险的急性淋巴细胞白血病(ALL)患儿在延迟加强阶段能否降低治疗强度。

目的:延迟强化(DI)是儿童ALL治疗不可分割的一部分,但其与相关毒性有关。因此,研究者考察了AIEOP-BFM ALL 2000试验(基于复发风险的联合化疗治疗ALL年轻患者)中的标准风险患者,特定目标为降低治疗强度。

受试者和相关性:2000年7月至2006年7月,1164例标准风险ALL(定义为33天和78天高风险细胞学证据缺失,且无法发现微小残留病灶)患者(年龄在1至17岁)被随机分配至试验性降低DI治疗强度(方法III;P-III)或标准DI(方法II;P-II)。地塞米松的P-III累积药物剂量降低30%,长春新碱、阿霉素和环磷酰胺降低50%,将疗程从49天缩短至29天。该研究的目的在于P-III强度降低的非劣效性;根据治疗进行分析。

结果:P-III和P-II的8年无疾病生存率(±SE)分别为89.2%±1.3%和92.3%±1.2%(P=0.04);累积复发率分别为8.7%±1.2%和6.4%±1.1%(P=0.09);总生存率分别为96.1%±0.8%和98.0%±0.6%(P=0.06)。两组ETV6-RUNX1阳性ALL患者和1至6岁患者表现均好。缓解期的死亡率相似,表明毒性相当。P-III和P-II的8年二次恶性肿瘤累积发生率分别为1.3%±0.5%和0.6%±0.4%(P=0.37)。

结论:尽管该试验标准风险定义使用的标准确定了预期预后较好的患者,但是化疗强度降低未成功的主要原因为复发率的增加。这些数据表明,特定亚组可降低治疗强度,强调对治疗有选择性应答的该队列的生物学异质性。

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    2018-12-11 minlingfeng
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    2017-12-28 膀胱癌
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    2017-12-27 飛歌

    学习了很有用

    0

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    2017-12-26 有备才能无患

    2017年发表在的一项研究调查了标准风险的急性淋巴细胞白血病(ALL)患儿在延迟加强阶段能否降低治疗强度.

    0