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Clin Cancer Res:Tislelizumab治疗复发/难治性经典霍奇金淋巴瘤的长期预后

2021-11-14 Nebula MedSci原创

Tislelizumab对复发性/难治性cHL患者具有长期的生存益处和良好的安全性

经典霍奇金淋巴瘤(cHL)的特征是罕见的恶性霍奇金淋巴瘤RS(HRS)细胞被广泛的炎症和免疫细胞浸润包围,如T细胞、巨噬细胞、中性粒细胞和B细胞。HRS细胞可通过多种机制逃避抗肿瘤免疫,包括染色体9p24.1上的基因扩增,导致程序性死亡配体1(PD-L1)和程序性死亡配体2(PD-L2)在肿瘤细胞表面过表达。

Tislelizumab是一种抗程序性死亡蛋白1(抗-PD-1)单克隆抗体,专为减少PD-1与Fcγ受体 (FcγR) 的结合而设计。

本文汇报了一项关于Tislelizumab用于治疗70位复发性/难治性经典霍奇金淋巴瘤患者的II期临床试验延长随访3年的结果。该试验受试患者均不适合自体干细胞移植或自体干细胞移植治疗失败。

受试患者的总体无进展生存率

中位随访了33.8个月,总缓解率为87.1%,其中完全缓解(CR)率达到了67.1%。中位缓解持续时间为31.3个月,中位无进展生存期(PFS)为31.5个月。3年无进展生存率和总生存率分别是40.8%和84.8%。

既往有无自体干细胞移植史的患者的无进展生存率

97.1%的患者发生过治疗相关的副反应(任何级别的);3级及以上的副反应的发生率低(31.4%),只有8.4%的患者因副反应而导致治疗中断。

相关生物标志物分析显示,FcγRI表达性巨噬细胞对Tislelizumab治疗的缓解率和无进展生存期均无明显影响。

综上,通过延长随访,该研究证实了Tislelizumab对复发性/难治性cHL患者具有长期的生存益处和良好的安全性

原始出处:

Song Yuqin,Gao Quanli,Zhang Huilai et al. Tislelizumab for relapsed/refractory classical Hodgkin lymphoma: 3-year follow-up and correlative biomarker analysis.[J] .Clin Cancer Res, 2021, https://doi.org/10.1158/1078-0432.CCR-21-2023

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    2022-05-27 snf701207
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    2021-11-16 freve

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