J Clin Oncol:通用型癌症疫苗在晚期非小细胞肺癌中的免疫原性和疗效

2022-09-09 MedSci原创 MedSci原创

通用型癌症肽基疫苗 (UCPVax) 为既往治疗过的晚期NSCLC患者带来可观的一年总生存率

通用型癌症肽基疫苗 (UCPVax) 是一种治疗性癌症疫苗,由两种高选择性的辅助肽组成,可诱导靶向端粒酶的CD4+ T 辅助细胞1反应。该Ib/IIa期临床试验旨在评估UCPVax三种剂量方案在转移性非小细胞肺癌 (NSCLC) 患者中的安全性、免疫原性和有效性。

根据基于贝叶斯的Ib期和IIa期降级设计,难治性NSCLC患者被分配接受三种剂量的UCPVax疫苗(0.25mg、0.5mg和1mg)。主要终点是剂量限制性毒性和免疫反应。次要终点是1年时的总生存期和无进展生存期。


总人群的无进展生存率和总生存率

共59位患者接受了UCPVax治疗;95%的患者接受过三线系统治疗。在Ib期15位患者中未观察到剂量限制性毒性。最大耐受剂量是1mg。51位患者被纳入IIa期。第3剂和第6剂UCPVax后的特异性CD4+ T 辅助细胞1 反应率分别是56%和87.2%,三种剂量水平之间无明显差异。


有无免疫应答的无进展生存率和总生存率

21位(39%)患者获得了疾病控制(疾病稳定,n=20;完全缓解,n=1)。一年总生存率是34.1%,中位总生存期是9.7个月,各剂量水平之间无显著差异。免疫应答者的一年无进展生存率是17.2%,中位总生存期是11.6个月;无应答者的分别是4.5%和5.6个月。

总之,该研究结果表明,UCPVax具有高度免疫原性和安全性,并且可为既往治疗过的晚期NSCLC患者带来可观的一年总生存率

原始出处:

Olivier Adotévi, et al. Safety, Immunogenicity, and 1-Year Efficacy of Universal Cancer Peptide–Based Vaccine in Patients With Refractory Advanced Non–Small-Cell Lung Cancer: A Phase Ib/Phase IIa De-Escalation Study. Journal of Clinical Oncology. September 7, 2022. https://ascopubs.org/doi/abs/10.1200/JCO.22.00096

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    2023-06-28 minlingfeng
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    2022-09-09 小小医者

    通用型#癌症疫苗#在晚期#非小细胞肺癌#中的免疫原性和疗效,不过效果也只能说可以,并谈不上令人惊艳!不过研究设计,#贝叶斯#的Ib期和IIa期降级#研究设计#,值得学习,现在用的越来越多了

    0

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