本期看点1. 下一代CD47阻断疗法evorpacept联用标准化疗方案治疗复发或难治性B细胞非霍奇金淋巴瘤(R/R B-NHL)的早期临床试验结果亮眼,80%患者获得完全缓解(CR),两年总生存(OS)率为84%。2. T细胞激活剂invikafusp alfa的1/2期临床试验结果积极,在肿瘤突变负荷高(TMB-H),对PD-1/PD-L1耐药且接受过大量前期治疗的难治性患者中的疾病控制率(DCR)为67%。3. Dectin-2靶向抗体BDC-3042在1期临床试验中展现积极抗肿瘤作用,在17例患有6种不同类型肿瘤的患者中,80%(12/15)的可评估患者达到了疾病稳定(SD)或更好的状态。Evorpacept(ALX148):公布1/2期联合治疗试验数据ALX Oncology公司公布了其CD47抑制剂evorpacept与标准治疗方案利妥昔单抗和来那度胺(R²)联用的1/2期由研究者发起的临床试验(IST)的积极数据,该试验针对复发或难治性B细胞非霍奇金淋巴瘤患者。Evorpacept是一种下一代CD47阻断疗法,它将高亲和性CD47结合结构域与经特殊处理的Fc结构域相结合,因此无法激活Fc受体,有望降低CD47靶向抗体因激活Fc受体可能产生的毒副作用。此外,与其它抗CD47抗体相比,evorpacept的分子量更小,更容易渗透到实体瘤中,从而提高疗效。此次试验共纳入20例惰性(18例)和侵袭性(2例)R/R B-NHL患者,所有患者均曾接受过抗CD20单抗治疗。在中位随访28个月后,联合治疗组患者的两年无进展生存(PFS)率为69%,两年OS率为84%。16例患者(80%)达到CR,最佳总缓解率(ORR)为90%。18例接受evorpacept联用R²方案的惰性NHL患者的CR率为83%,高于历史上在仅使用R²方案的类似患者中观察到的34%的CR率。此外,治疗期间观察到T细胞和抗肿瘤巨噬细胞显著增加。安全性方面,该联合治疗方案耐受性良好,未出现剂量限制性毒性。Invikafusp alfa(STAR0602):公布1/2期临床试验数据Marengo Therapeutics公司将公布其潜在“first-in-class”T细胞激活剂invikafusp alfa的1/2期临床试验更新结果。Invikafusp alfa是一款双特异性融合蛋白,它不但可以与T细胞受体的Vβ链结合,还可以激活另一条T细胞共刺激信号通路,促进特定效应Vβ T细胞的扩增,从而增强抗肿瘤免疫反应。摘要结果显示,在肿瘤突变负荷高(TMB-H),对PD-1/PD-L1耐药且接受过大量前期治疗的难治性患者中,优化剂量的invikafusp alfa在9名可评估疗效的患者中达到67%的DCR,其中两名患者获得确认部分缓解(PR),一名患者缓解持续时间超过12个月。此外,研究发现CD8阳性、Vβ T细胞的剂量依赖性、选择性扩增,在2期临床推荐剂量下最高扩增600%。扩增的Vβ T细胞表现出记忆表型并表达细胞毒性效应分子。基于初步临床及临床前结果,美国FDA已授予invikafusp alfa治疗TMB-H结直肠癌的快速通道资格。BDC-3042:公布1期临床试验数据Bolt Biotherapeutics公司公布了其抗体疗法BDC-3042的1期剂量递增研究结果。BDC-3042是一种靶向dectin-2的激动剂抗体,dectin-2是一种由肿瘤相关巨噬细胞(TAM)表达的免疫激活受体。作为C型凝集素受体,dectin-2在病原体识别及诱导保护性免疫反应中发挥着关键作用。截至2025年4月7日的数据,BDC-3042在10 mg/kg每两周一次的剂量下表现出良好的耐受性,未出现剂量限制性毒性或药物相关严重不良事件。同时,该药物显示出明确的生物学活性,促炎细胞因子和趋化因子水平呈剂量依赖性升高。BDC-3042展现出潜在的抗肿瘤活性,80%的可评估患者(12/15)的最佳缓解为SD或更好,所有3例非小细胞肺癌患者均实现≥12周的SD,包括1例未确认的PR。Tovecimig(CTX-009):研究者发起的临床试验完成首例患者给药Compass Therapeutics公司宣布,其靶向DLL4和VEGF-A的双特异性抗体tovecimig(CTX-009)用于一线治疗胆道癌(BTC)的IST研究已完成首例患者给药。Tovecimig通过同时阻断促血管生成的DLL4和VEGF-A信号通路发挥抗肿瘤作用。临床前及早期临床数据显示,其在结直肠癌、胃癌、胆管癌、胰腺癌和非小细胞肺癌等多种实体瘤中具有活性。在既往接受过多种治疗且对已获批抗VEGF疗法产生耐药的晚期癌症患者群体中,已观察到接受tovecimig单药治疗的患者获得了PR。VS-7375:IND申请获得FDA许可Verastem Oncology公司宣布,美国FDA已批准其口服KRAS G12D(ON/OFF)抑制剂VS-7375的IND申请,公司预计将于2025年年中启动一项1/2a期临床研究,并计划在晚期实体瘤(如胰腺癌、结直肠癌和非小细胞肺癌)中开展多个扩展队列试验,包括联合疗法评估。VS-7375由Verastem Oncology与劲方医药合作开发,是一款口服高活性、高选择性小分子KRAS G12D(ON/OFF)抑制剂,通过非共价形式结合KRAS G12D蛋白,抑制其与下游效应蛋白结合,从而在细胞中破坏KRAS G12D对下游通路的持续活化,最终高效抑制肿瘤细胞增殖。参考资料(可上下滑动查看)[1] Korea’s InThera receives IND approval for norovirus vaccine candidate. Retrieved April 25, 2025, from https://www.koreabiomed.com/news/articleView.html?idxno=27327[2] Compass Therapeutics Announces First Patient Dosed in an Investigator Sponsored Trial of Tovecimig in the First-Line Setting for Patients with Biliary Tract Cancer. Retrieved April 25, 2025, from https://www.globenewswire.com/news-release/2025/04/21/3064600/0/en/Compass-Therapeutics-Announces-First-Patient-Dosed-in-an-Investigator-Sponsored-Trial-of-Tovecimig-in-the-First-Line-Setting-for-Patients-with-Biliary-Tract-Cancer.html[3] Aclaris Therapeutics Secures U.S. Food and Drug Administration IND Clearance for ATI-052, Enabling Advancement of its Novel Bispecific Anti-TSLP/IL-4R Investigational Antibody. Retrieved April 25, 2025, from https://www.globenewswire.com/news-release/2025/04/22/3065328/37216/en/Aclaris-Therapeutics-Secures-U-S-Food-and-Drug-Administration-IND-Clearance-for-ATI-052-Enabling-Advancement-of-its-Novel-Bispecific-Anti-TSLP-IL-4R-Investigational-Antibody.html[4] Tagworks Pharmaceuticals Announces FDA Clearance of IND Application and Initiation of Phase 1 Clinical Trial for TGW101 and Appoints Keith Orford, MD, PhD, as Chief Medical Officer. Retrieved April 25, 2025, from https://www.prnewswire.com/news-releases/tagworks-pharmaceuticals-announces-fda-clearance-of-ind-application-and-initiation-of-phase-1-clinical-trial-for-tgw101-and-appoints-keith-orford-md-phd-as-chief-medical-officer-302433654.html[5] Ensem Therapeutics Announces U.S. FDA IND Clearance to Initiate Clinical Development of ETX-636. Retrieved April 25, 2025, from https://www.businesswire.com/news/home/20250422440145/en/Ensem-Therapeutics-Announces-U.S.-FDA-IND-Clearance-to-Initiate-Clinical-Development-of-ETX-636[6] AP Biosciences Doses First Patient in Phase 1/2 Clinical Trials of AP402 for HER2+ Cancer Patients. Retrieved April 25, 2025, from https://www.globenewswire.com/news-release/2025/04/22/3065502/0/en/AP-Biosciences-Doses-First-Patient-in-Phase-1-2-Clinical-Trials-of-AP402-for-HER2-Cancer-Patients.html[7] Kymera Therapeutics Announces First Patient Dosed in BROADEN Phase 1b Atopic Dermatitis Clinical Trial of KT-621, a First-in-Class Oral STAT6 Degrader. Retrieved April 25, 2025, from https://www.globenewswire.com/news-release/2025/04/22/3065332/0/en/Kymera-Therapeutics-Announces-First-Patient-Dosed-in-BROADEN-Phase-1b-Atopic-Dermatitis-Clinical-Trial-of-KT-621-a-First-in-Class-Oral-STAT6-Degrader.html[8] Onward Therapeutics Announces IMPD Approval for Its Subsidiary Emercell to Start Clinical Investigation of Allogeneic NK Cell Therapy OT-C001 in Combination with Rituximab. Retrieved April 25, 2025, from https://www.prnewswire.com/news-releases/onward-therapeutics-announces-impd-approval-for-its-subsidiary-emercell-to-start-clinical-investigation-of-allogeneic-nk-cell-therapy-ot-c001-in-combination-with-rituximab-302433928.html[9] CytoAgents Announces Completion of Cohort 1 Dose-escalation Stage of Clinical Phase 1B to Advance Research on Cytokine Release Syndrome. Retrieved April 25, 2025, from https://www.businesswire.com/news/home/20250424559289/en/CytoAgents-Announces-Completion-of-Cohort-1-Dose-escalation-Stage-of-Clinical-Phase-1B-to-Advance-Research-on-Cytokine-Release-Syndrome[10] Verastem Oncology Announces U.S. IND Clearance of VS-7375, Oral KRAS G12D (ON/OFF) Inhibitor, Enabling Phase 1/2a Trial in Advanced Solid Tumors. Retrieved April 25, 2025, from https://pipelinereview.com/verastem-oncology-announces-u-s-ind-clearance-of-vs-7375-oral-kras-g12d-on-off-inhibitor-enabling-phase-1-2a-trial-in-advanced-solid-tumors/[11] Ascletis Announces Positive Topline Results of U.S. Phase Ib Multiple Ascending Dose Study of Small Molecule Oral GLP-1R Agonist ASC30 and Submission of 13-week Phase IIa Study Protocol to FDA. Retrieved April 25, 2025, from https://www.prnewswire.com/news-releases/ascletis-announces-positive-topline-results-of-us-phase-ib-multiple-ascending-dose-study-of-small-molecule-oral-glp-1r-agonist-asc30-and-submission-of-13-week-phase-iia-study-protocol-to-fda-302434655.html[12] Marengo to Share Updated Clinical Results from STARt-001 Phase 1/2 Clinical Trial Featuring Invikafusp Alfa Monotherapy Activity in PD1 Resistant Tumors at Upcoming AACR 2025 Clinical Plenary Oral Presentation. Retrieved April 25, 2025, from https://www.prnewswire.com/news-releases/marengo-to-share-updated-clinical-results-from-start-001-phase-12-clinical-trial-featuring-invikafusp-alfa-monotherapy-activity-in-pd1-resistant-tumors-at-upcoming-aacr-2025-clinical-plenary-oral-presentation-302437765.html[13] CT206 - ICAM-1 directed chimeric antigen receptor (CAR) T cells (AIC100) in patients with advanced thyroid cancers: Clinical and translational data from the phase 1 dose escalation study. Retrieved April 25, 2025, from https://www.abstractsonline.com/pp8/#!/20273/presentation/10430[14] Bolt Biotherapeutics Presents Results from the Phase 1 Dose-Escalation Clinical Study of BDC-3042 at AACR Annual Meeting 2025. Retrieved April 25, 2025, from https://www.globenewswire.com/news-release/2025/04/25/3068520/0/en/Bolt-Biotherapeutics-Presents-Results-from-the-Phase-1-Dose-Escalation-Clinical-Study-of-BDC-3042-at-AACR-Annual-Meeting-2025.html免责声明:本文仅作信息交流之目的,文中观点不代表药明康德立场,亦不代表药明康德支持或反对文中观点。本文也不是治疗方案推荐。如需获得治疗方案指导,请前往正规医院就诊。版权说明:欢迎个人转发至朋友圈,谢绝媒体或机构未经授权以任何形式转载至其他平台。转载授权请在「药明康德」微信公众号回复“转载”,获取转载须知。分享,点赞,在看,聚焦全球生物医药健康创新2