本期看点:
1. 潜在“best-in-class”的口服小分子EP4受体拮抗剂DT-9081用于治疗晚期、复发性和转移性实体瘤,在一项1期临床试验中取得了积极结果。
2. 旨在治疗代谢功能障碍相关脂肪性肝炎(MASH),Tangram Therapeutics公司的GalNAc偶联小干扰RNA(GalNAc-siRNA)药物TGM-312在1/2期临床试验中完成首例受试者给药。
DT-9081:公布1期临床试验数据
Kainova Therapeutics公司宣布,其用于治疗晚期、复发性和转移性实体瘤患者的候选药物DT-9081取得了积极的1期临床试验结果。DT-9081是一款潜在“best-in-class”的口服小分子EP4受体拮抗剂,旨在通过阻断由COX-2阳性肿瘤产生的前列腺素E2(PGE2)所介导的免疫抑制,恢复免疫功能正常环境并支持免疫再激活,从而提升包括化疗和某些免疫检查点抑制剂在内的抗癌治疗效果。临床前研究显示,在三阴性乳腺癌、肉瘤和结直肠癌模型中,DT-9081无论是单药还是与化疗或免疫检查点抑制剂联合使用,均具有显著的抗肿瘤效果。
研究结果显示,DT-9081在所有测试剂量下均表现出良好的安全性特征,未报告任何剂量限制性毒性,证实了其临床耐受性并验证了其作用机制。药代动力学(PK)和药效学(PD)数据显示药物暴露量与剂量成正比,且在所有剂量水平下均实现了持续的EP4受体结合;此外,研究还观察到了早期的抗肿瘤活性迹象。这些发现进一步支持了DT-9081用于提高患者对免疫检查点抑制剂治疗反应的潜力。
TGM-312:1/2期临床试验完成首例受试者给药
Tangram Therapeutics公司宣布,其主打候选药物TGM-312的1/2期临床试验已完成首例受试者给药。TGM-312是一种基于Tangram Therapeutics公司专有的RNAi化学平台GalOmic开发的GalNAc-siRNA,旨在特异性沉默肝细胞中一个新靶点基因,用于治疗MASH。该药物有望实现每季度一次的皮下给药,提升患者用药便利性。
在具有高度转化性的Gubra-Amylin NASH饮食诱导肥胖(GAN-DIO)小鼠模型的临床前研究中,TGM-312单药或与已获批及在研MASH疗法联用,均能显著降低NAFLD活动评分(NAS)、减轻肝脏炎症并减缓纤维化进程。
Delpacibart zotadirsen:公布1/2期临床试验及开放标签扩展研究的数据
诺华(Novartis)公司旗下的Avidity Biosciences公布了抗体偶联寡核苷酸疗法delpacibart zotadirsen(del-zota)在治疗杜氏肌营养不良(DMD)患者的1/2期临床试验EXPLORE44和开放标签扩展研究EXPLORE44-OLE中获得的结果。Del-zota由抗转铁蛋白受体1(TfR1)抗体与诱导DMD基因外显子44跳跃的反义寡核苷酸(ASO)偶联而成。Del-zota旨在恢复肌营养不良蛋白的表达,在适用于外显子44跳跃治疗的DMD患者体内产生一种较短但具有功能的肌营养不良蛋白。
在EXPLORE44和EXPLORE44-OLE研究中,共纳入42名DMD患者,其中可行走患者28例,不可行走患者14例,年龄为7–27岁。所有正在参与研究的受试者累计接受了约1年的del-zota治疗。试验结果显示,在这1年期间,中位血清肌酸激酶(CK)水平保持在接近正常范围的上限。在1年时,与自然疾病史数据相比,del-zota治疗与关键功能指标的改善相关。Del-zota总体显示出可接受的安全性和耐受性。研究者表示,这些结果支持del-zota有望改善特定DMD患者的生活质量。
参考资料:
[1] Benitec Biopharma Announces Positive Interim Phase 1b/2a Results for High Dose BB-301 and Continued Durable Improvements for Low Dose BB-301 Treatment at the 2026 Muscular Dystrophy Association Clinical & Scientific Conference. Retrieved March 13, 2026, from https://www.globenewswire.com/news-release/2026/03/09/3251690/0/en/Benitec-Biopharma-Announces-Positive-Interim-Phase-1b-2a-Results-for-High-Dose-BB-301-and-Continued-Durable-Improvements-for-Low-Dose-BB-301-Treatment-at-the-2026-Muscular-Dystroph.html
[2] AbbVie Announces Positive Topline Results from a Phase 1 Multiple Ascending Dose Study of ABBV-295, a Long-Acting Amylin Analog, in Adults. Retrieved March 13, 2026, from https://www.prnewswire.com/news-releases/abbvie-announces-positive-topline-results-from-a-phase-1-multiple-ascending-dose-study-of-abbv-295-a-long-acting-amylin-analog-in-adults-302707602.html
[3] Kainova Therapeutics Announces Positive Phase I Results for DT-9081, an Oral EP4 Receptor Antagonist, in Advanced Solid Tumors. Retrieved March 13, 2026, from https://www.globenewswire.com/news-release/2026/03/10/3252479/0/en/Kainova-Therapeutics-Announces-Positive-Phase-I-Results-for-DT-9081-an-Oral-EP4-Receptor-Antagonist-in-Advanced-Solid-Tumors.html
[4] Dyne Therapeutics Announces New Positive Cardiopulmonary Results from DELIVER Trial of Z-Rostudirsen in Duchenne Muscular Dystrophy (DMD). Retrieved March 9, 2026, from https://www.globenewswire.com/news-release/2026/03/08/3251476/0/en/Dyne-Therapeutics-Announces-New-Positive-Cardiopulmonary-Results-from-DELIVER-Trial-of-Z-Rostudirsen-in-Duchenne-Muscular-Dystrophy-DMD.html
[5] REGENXBIO REPORTS NEW POSITIVE INTERIM DATA FROM PHASE I/II AFFINITY DUCHENNE® TRIAL OF RGX-202. Retrieved March 11, 2026, from https://www.prnewswire.com/news-releases/regenxbio-reports-new-positive-interim-data-from-phase-iii-affinity-duchenne-trial-of-rgx-202-302711193.html
[6] Biogen Presents Additional Salanersen Data Showing New Motor Milestones Achieved in Children with SMA Previously Treated with Gene Therapy. Retrieved March 11, 2026, from https://investors.biogen.com/news-releases/news-release-details/biogen-presents-additional-salanersen-data-showing-new-motor
[7] Del-zota treatment is associated with near normalization of CK levels and improvements in key functional outcomes at 1 year in participants with DMD44. Retrieved March 12, 2026, from https://www.mdaconference.org/abstract-library/del-zota-treatment-is-associated-with-near-normalization-of-ck-levels-and-improvements-in-key-functional-outcomes-at-1-year-in-participants-with-dmd44/
[8] First Subjects Dosed in Cocrystal Pharma’s Phase 1b Study Evaluating CDI-988 for Norovirus Prevention and Treatment. Retrieved March 9, 2026, from https://www.globenewswire.com/news-release/2026/03/09/3251781/0/en/First-Subjects-Dosed-in-Cocrystal-Pharma-s-Phase-1b-Study-Evaluating-CDI-988-for-Norovirus-Prevention-and-Treatment.html
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