Ann Hematol: 基于POV的补救免疫化疗作为弥漫性大 B 细胞淋巴瘤患者的三线或以上治疗

2021-11-25 MedSci原创 MedSci原创

PoV 联合 BR 或其他强化化疗是 R/R DLBCL 患者的有效且耐受良好的挽救选择。随后的 HSCT 有可能进一步改善这一高危人群的生存结果。

Polatuzumab vedotin (PoV) 最近在与利妥昔单抗-苯达莫司汀 (BR) 联合治疗复发/难治 (R/R) 弥漫性大 B 细胞淋巴瘤 (DLBCL) 患者时显示出有希望的活性。然而,很少有研究描述预测反应的预后因素。

因此,国外一研究团队做了一项实验,旨在评估基于 PoV 的化疗(包括 BR 以外的方案)作为 R/R DLBCL 患者的三线或超越治疗的疗效和安全性,并探讨预后因素。

团队总共招募了 40 名患者,包括 37 名新发患者和 3 名转化型 DLBCL。总体反应率为 52.5%,分别有 25% 和 27.5% 的患者表现出完全反应和部分反应。中位随访时间为 18.8 个月,整个队列的中位总生存期 (OS) 为 8.5 个月,接受后续造血干细胞移植 (HSCT) 的患者为 24 个月。根据在诊断时和 PoV 治疗前修订的国际预后指数评分,低/中风险预测更好的 OS。

图1 :A:40例复发/难治性DLBCL患者采用基于pov的治疗的总生存率。B:21例患者达到完全或部分缓解的无进展生存期

图2:基于pov治疗的预后研究。根据诊断时(A)和PoV治疗前修订的国际预后指数(R-IPI)评分(B)、LDH水平升高(C)和绝对淋巴细胞计数/绝对单核细胞(ALC/AMC)比值(D)分层OS

此外,正常的乳酸脱氢酶水平和绝对淋巴细胞计数/绝对单核细胞计数比 > 1.5 是有利的 OS 预后因素。最常见的不良事件是血细胞减少症,42.5% 的患者出现发热性中性粒细胞减少症。25% 的患者报告了与 PoV 相关的 1-3 级周围神经病变,大多数患者在停止治疗后消退。

表:基于pov的治疗对R/RDLBCL患者的安全性分析

总之,这次的实验证明了 PoV 联合 BR 或其他强化化疗是 R/R DLBCL 患者的有效且耐受良好的挽救选择。随后的 HSCT 有可能进一步改善这一高危人群的生存结果。

 

原始出处:

Wang, YW., Tsai, X.CH., Hou, HA. et al. Polatuzumab vedotin–based salvage immunochemotherapy as third-line or beyond treatment for patients with diffuse large B-cell lymphoma: a real-world experience. Ann Hematol (2021). https://doi.org/10.1007/s00277-021-04711-9

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    海市召开的第107场新冠肺炎疫情防控新闻

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