2022 ASCO:一种新型抗 PD-1 抗体Serplulimab,化疗疗效和安全性研究的3期研究

2022-06-01 紫菀款冬 MedSci原创

Serplulimab是一种新型人源化单克隆抗PD-1抗体,与化疗联合用于先前未治疗的ES-SCLC患者,对疗效和安全性进行评估。

背景:针对程序性死亡配体1(PD-L1)的单克隆抗体已被批准与化疗联合用于广泛期小细胞肺癌(ES-SCLC)的一线治疗。然而,程序性死亡 1 (PD-1)抑制剂是否在该患者群体中提供类似的生存益处仍不清楚。在这项研究中,serplulimab是一种新型人源化单克隆抗PD-1抗体,与化疗联合用于先前未治疗的ES-SCLC患者的疗效和安全性进行了评估。

方法:在这项国际、随机、双盲、多中心的3期试验(NCT04063163)中,既往未接受过全身治疗的ES-SCLC患者随机(2:1)每3周接受一次静脉注射4.5 mg/kg的serplulimab或安慰剂。所有患者每3周接受一次静脉注射卡铂和依托泊苷,最多4个周期主要终点是总生存期(OS)。次要终点包括无进展生存期(PFS)、客观缓解率(ORR)、缓解持续时间(DoR)和安全性。

结果:在2019年9月12日至2021年4月27日期间,585名患者被随机分组​​(serplulimab组,n=389;安慰剂组,n=196)。在中期分析中,中位随访时间为12.3个月。与安慰剂组相比,serplulimab组的中位OS显着延长(15.4与10.9个月;风险比 [HR] 0.63,95% CI 0.49–0.82;P < 0.001)。独立放射学审查委员会 (IRRC) 根据 RECIST v1.1 评估的中位PFS显著长于安慰剂组(5.8个月vs. 4.3个月;HR 0.47,95% CI 0.38–0.59;P < 0.001)。ORR (80.2% vs. 70.4%) 和 DoR (5.6 vs.3.2 个月),由 IRRC 根据 RECIST v1.1 评估。

各组分别有129名(33.2%)和54名(27.6%)患者报告了与serplulimab或安慰剂相关的≥3 级治疗出现的不良事件(TEAE)。与安慰剂组相比,serplulimab 组的免疫相关 TEAE 的发生率更高(37% vs. 18.4%),内分泌疾病的差异最大(18.3% vs. 4.6%),这在抗PD-1/PD-L1治疗中很常见。报告了可能与研究药物有关的 4 例死亡(1 例急性冠状动脉综合征、1 例发热和 1 例血小板计数减少,安慰剂组 1 例)。

结论:与单独化疗相比,Serplulimab 联合化疗作为一线治疗在 ES-SCLC 患者中提供了显著的益处和可控的安全性。在一项针对先前未治疗的 ES-SCLC 患者的全球3期研究中,PD-1抑制剂首次证明了OS益处

原始出处:

Ying Cheng, et al. Serplulimab, a novel anti-PD-1 antibody, plus chemotherapy versus chemotherapy alone as first-line treatment for extensive-stage small-cell lung cancer: An international randomized phase 3 study.

https://meetings.asco.org/abstracts-presentations/207324

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    2022-09-24 snf701207
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    2022-12-11 quxin068
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    2022-06-01 病毒猎手

    相当不容易

    0

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