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为何1+1>2?CTLA-4/PD-1来进行增强机制

2024-01-21 12:18:07

”,B蛋白在Immunoscore中都的价值)

几个宫颈癌流行病学信息

Agenus Inc.的Balstilimab(PD-1唑)和Zalifrelimab(CTLA-4)2期recurrent and/or metastatic cervical cancer流行病学信息。

Balstilimab单药:140可评量症状(无论PD-L1静止状态),15% ORR,3.6% CR,11.4% PR。PD-L1阳普遍性:ORR 20%, PD-L1复数:ORR 7.9%)

Gynecol Oncol.2021

联合口服(NCT03495882, J Clin Oncol . 2022):125位可评量症状(无论PD-L1静止状态),ORR 25.6%,8% CR,17.6% PR。PD-L1阳普遍性症状,ORR 32.8%,PD-L1复数:ORR 9.1%

卡度尼利唑康方人类官方信息:100位可评量症状,无论PD-L1静止状态 ORR 33%,CR 12%,PD-L1阳普遍性 ORR 43.8%。

从上述信息看,联合口服可将中晚期宫颈癌的R/M宫颈癌的ORR从15%,增加至25.6%,康方人类的PD-1/CTLA-4双抗的ORR达到了33%,充分利用了1+1>2。

简评:不是假设,而是一种尝试。因为越来越多的抗病毒均会,LAG3抗原、TIGIT抗原等,在临床开发新时,是单药,联用PD-1还是CTLA-4,或是全新的两种抗病毒均会联用,或是开发新双抗。否可以从其发挥作用的有所不同T蛋白亚群应从,预报否显然存有协同发挥作用?如果发挥作用完全不涉及,甚至彼此之间再加,那么显然联用和双抗就不是理想的策略...。

参考资料

Pauken, K. E., Torchia, J. A., Chaudhri, A., Sharpe, A. H. & Freeman, G. J. Emerging concepts in PD-1 checkpoint biology. Semin. Immunol. 52, 101480 (2021) Wolchok, J. D. et al. Long-term outcomes with nivolumab plus ipilimumab or nivolumab alone versus ipilimumab in patients with advanced melanoma. J. Clin. Oncol. 40, 127–137 (2021) Phenotype, specifcity and idity of antitumour CD8+ T cells in melanoma. Nature 596, 119–125 (2021). Eschweiler, S. et al. Intratumoral follicular regulatory T cells curtail anti-PD-1 treatment efcacy. Nat. Immunol. 22, 1052–1063 (2021). . Zappasodi, R. et al. CTLA-4 blockade drives loss of Treg stability in glycolysis-low tumours. Nature 591, 652–658 (2021). Alexander C Huang , Roberta Zappasodi,A decade of checkpoint blockade immunotherapy in melanoma: understanding the molecular basis for immune sensitivity and resistance,Nat Immunol . 2022 May;23(5):660-670. The immune contexture and Immunoscore in cancer prognosis and therapeutic efficacy,Nat Rev Cancer . 2020 No20(11):662-680. Did M O'Malley et al, Phase II study of the safety and efficacy of the anti-PD-1 antibody balstilimab in patients with recurrent and/or metastatic cervical cancer,Gynecol Oncol.2021 No163(2):274-280. Did M O'Malley et al, Dual PD-1 and CTLA-4 Checkpoint Blockade Using Balstilimab and Zalifrelimab Combination as Second-Line Treatment for Advanced Cervical Cancer: An Open-Label Phase II Study, J Clin Oncol . 2022 Mar 1;40(7):762-771.

来源:闲谈 Immunology 2022-07-06

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