Blood:维奈托克联合R-EPOCH方案治疗Richter综合征

2022-02-16 Nebula MedSci原创

VR-EPOCH方案在Richter综合征患者中具有积极的抗肿瘤活性,相比既往方案可获得更深更持续的缓解。

随着医药技术的不断发展,慢性淋巴细胞白血病 (CLL) 患者的预后得到了很大的改善,但慢性淋巴细胞白血病中的Richter综合征 (RS) 患者,大多对化疗耐药,预后仍很差。Richter综合征患者的中位总生存期往往只有3-6个月,目前且无标准的治疗方案。

注释:Richter综合征是慢性淋巴细胞白血病发生转化的临床表现,多表现为淋巴结肿大,但也可结外器官受累,常累及胃肠道、肺脏、神经系统、骨骼,皮肤和膀胱受累少见。CLL转化成Richter综合征时临床上表现为发热,体重减轻,盗汗,淋巴结快速增大,出现结外病变,乳酸脱氢酶升高,受侵犯的器官出现功能障碍。

研究人员猜测,口服Bcl-2抑制剂维奈托克或可增加Richter综合征患者对化疗免疫治疗的敏感性,从而改善患者的临床预后。

这是一项单中心的2期临床试验,招募了Richter综合征患者,予以维奈托克联合剂量调整的利妥昔单抗、依托泊苷、强的松、长春新碱、环磷酰胺和阿霉素(VR-EPOCH)治疗。第1个VR-EPOCH疗程后,待细胞计数恢复后,将维奈托克的每日剂量调整为400mg,然后至少再予以5个VR-EPOCH疗程。主要终点是完全缓解率(CR)。缓解者接受维奈托克维持或细胞治疗。

无进展生存期和总生存期

共有26位患者接受了研究治疗,其中13位(50%)获得了完全缓解,且有11位的CLL骨髓微小残留病灶实现了检测不到。此外,还有3位患者获得了部分缓解(总缓解率为62%)。中位无进展生存期为10.1个月,中位总生存期为19.6个月。

不良反应

3级及以上的血液学毒性有中性粒细胞减少症(65%)、血小板减少症(50%)和发热性中性粒细胞减少症(38%)。无患者发生肿瘤溶解综合征。

综上,VR-EPOCH方案在Richter综合征患者中具有积极的抗肿瘤活性,相比既往方案可获得更深更持续的缓解。该研究结果表明值得进一步在Richter综合征患者中对比维奈托克联合化学免疫对比单纯化学免疫疗法的疗效。

 

原始出处:

Matthew S. Davids, Kerry A. Rogers, et al. Venetoclax plus dose-adjusted R-EPOCH for Richter syndrome. Blood (2022) 139 (5): 686–689. https://doi.org/10.1182/blood.2021011386.

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    2022-12-03 okhuali
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    2022-02-17 diushouji
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Richter综合征(RS)是慢性淋巴细胞白血病(CLL)患者转化或并发另一种侵袭性淋巴瘤。现已识别了RS的两种病理变异型,即弥漫性大B细胞淋巴瘤(DLBCL)变异型和罕见的霍奇金淋巴瘤(HL)变异型。确诊RS需要组织病理检查。临床疑诊RS需根据临床表现和体征。鉴别CLL进展和RS,以及确定活检位点可以依赖PET/CT。总体上,增殖(CDKN2A、NOTCH1、MYC)和凋亡(TP53)调控的分子

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中心点:MiR-125a-5p高表达或miR-34a-5p低表达可预测约50%的RS,假阳性率9%。MiR-125a-5p和miR-34a-5p可作为预测CLL患者有无RS发展的标志物。摘要:慢性淋巴细胞白血病(CLL)是一种最常见的成人白血病。其特点是CD19+/CD5+淋巴细胞积累,预后多变。Richter综合征(RS)是CLL患者的一种致命性并发症,可导致侵袭性B细胞淋巴瘤。迄今为止,尚无检