Blood:母细胞性浆细胞样树突状细胞肿瘤

2019-07-03 MedSci MedSci原创

母细胞性浆细胞样树突状细胞肿瘤(Blastic plasmacytoid dendritic cell neoplasm, BPDCN)是一种不常见的血液恶性肿瘤,预后差。BPDCN临床表现的相关数据有限,因为现有报道的结果主要来自小规模的回顾性研究,缺乏标准化的治疗指南。

中心点:

现代多中心BPDCN人群的预后为靶向治疗提供了一个基准。

60岁以下、核型正常和TdT阳性患者预后相对较好,普拉曲沙和Enasidenib对BPDCN具有一定治疗活性。

摘要:

母细胞性浆细胞样树突状细胞肿瘤(Blastic plasmacytoid dendritic cell neoplasm, BPDCN)是一种不常见的血液恶性肿瘤,预后差。BPDCN临床表现的相关数据有限,因为现有报道的结果主要来自小规模的回顾性研究,缺乏标准化的治疗指南。

最近,IL-3细胞毒素结合物Tagraxofusp获得美国食品和药物管理局(FDA)批准进行1/2期试验,这是首次获批进行治疗BPDCN的试验。但由于目前在这项或任何临床研究中,还没有匹配的内部比较器,BPDCN试验检测新药物的结果很难与替代疗法进行比较。因此Justin Taylor等人尝试在tagraxofusp问世之前,定义一组BPDCN患者的临床特征和预后。

在59个关于BPDCN患者的研究中,从确诊起的总体存活期中位值为24个月,预后与“仅皮肤”表现或伴有全身性疾病的患者相似。一线强化治疗和“淋巴样”化疗方案可改善患者预后。

仅有55%的患者进行了强化化疗,42%的患者进行了干细胞移植。确诊时与预后不良相关的临床特征有60岁以上、核型异常和BPDCN细胞的TdT阴性。此外,研究人员还确定了部分患者对普拉曲沙和Enasidenib治疗的疾病反应。

总而言之,本研究强调了现代BPDCN患者的不良预后以及对新治疗方法的需求。正在进行的BPDCN临床试验的结果可以相对地对当下的队列进行评估。


原始出处:

Justin Taylor, et al.Multicenter Analysis of Outcomes in Blastic Plasmacytoid Dendritic Cell Neoplasm Offers a Pre-Targeted Therapy Benchmark.Blood 2019 :blood.2019001144; doi: https://doi.org/10.1182/blood.2019001144

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    2019-07-04 txqjm

    谢谢了,学习

    0