本期看点1. 潜在“first-in-class”突变型钙网蛋白(mutCALR)靶向单克隆抗体早期临床数据积极,超80%骨髓增殖性肿瘤(MPN)患者达完全缓解(CR)。2. 血浆激肽释放酶单抗抑制剂navenibart用于治疗遗传性血管性水肿,在一项早期临床试验中使患者每月的发作率大幅降低,平均降幅达92%,降幅中位数达97%。INCA033989:公布首个临床研究数据Incyte近日公布其创新疗法INCA033989的首个临床研究数据,该药物为一款潜在“first-in-class”、mutCALR靶向单克隆抗体,用于治疗携带此突变的骨髓增殖性肿瘤患者。数据显示,在接受INCA033989治疗的高危原发性血小板增多症(ET)的患者中,各剂量组均实现了快速且持久的血小板计数正常化,高剂量组(>400 mg)患者应答更为显著。其中,86%的患者达到完全或部分血液学缓解,82%达CR;89%(34/38)的可评估患者mutCALR等位基因频率(VAF)降低,且21%(8/38)患者在仅接受3个治疗周期后即实现超过50%的VAF下降。单细胞DNA测序探索性研究进一步显示,INCA033989能够选择性靶向并减少携带mutCALR的造血干祖细胞(CD34阳性)及髓红系细胞,同时促进正常(野生型CALR)细胞的恢复,支持健康造血功能的重建。骨髓活检结果亦验证了这一机制,mutCALR阳性巨核细胞减少、阴性巨核细胞增加。安全性方面,INCA033989在24至2500 mg的全部剂量范围内耐受性良好,无剂量限制性毒性(DLT),仅1例患者因治疗伴发不良事件(TEAEs)停药,另有1例发生剂量调整。最常见的TEAEs为疲劳(26.5%)和上呼吸道感染(20.4%),均为1-2级。Navenibart(STAR-0215):公布1b/2期临床试验长期开放标签试验的数据Astria Therapeutics公司公布了其血浆激肽释放酶单抗抑制剂navenibart治疗遗传性血管性水肿的1b/2期临床试验长期开放标签试验的数据。此次公布的结果显示,患者每月的发作率大幅降低,平均降幅达92%,降幅中位数达97%。频率为每3个月给药一次组别患者的平均每月发作率降低了95%,而每6个月给药一次组别患者的平均降幅为86%。安全性方面,navenibart总体耐受性良好,无严重的治疗伴发不良事件,无停药现象。ELVN-001:公布1期临床试验的新数据Enliven Therapeutics公司公布其小分子激酶抑制剂ELVN-001治疗慢性粒细胞白血病(CML)患者的1期临床试验的新数据。ELVN-001是一种强效、高选择性、潜在“best-in-class”的小分子激酶抑制剂,专门针对CML患者的致癌驱动因子BCR-ABL融合蛋白。ELVN-001还具有针对耐药性最强的BCR-ABL1耐药突变体T315I和其他已知耐药突变体的活性。截至2025年4月28日的数据,在53例可评估的患者中,47%(25/53)在24周时达到主要分子学缓解(MMR),其中最后一线治疗时对酪氨酸激酶抑制剂(TKI)耐药的患者中有41%(14/34)在24周时处于MMR,曾接受asciminib或ponatinib治疗的患者中也有35%(12/34)在24周时处于MMR。所有达到或维持MMR的患者在数据截止时仍保持缓解。在该临床试验中所纳入的患者群体此前接受过大量治疗的情况下,ELVN-001与已获批的针对BCR-ABL融合蛋白的TKI在1期试验中所观察到的MMR相比,结果依然更好。安全性方面,ELVN-001在所有剂量水平上继续表现出良好的安全性和耐受性。BMF-500:公布1期临床试验的初步数据Biomea Fusion公司公布了其共价FLT3抑制剂BMF-500治疗复发/难治性急性白血病的初步临床数据。BMF-500是一种新型、口服可利用的、高效、具选择性的FLT3共价小分子抑制剂。此前的研究表明,BMF-500潜在的脱靶风险较小,对活化的FLT3突变(包括FLT3-ITD和各种酪氨酸激酶结构域突变)具有皮摩尔级的亲和力。在携带FLT3-ITD突变的急性髓系白血病(AML)小鼠模型中,BMF-500使小鼠的肿瘤完全消退,且不需要持续暴露即可维持疗效。BMF-500在治疗FLT3突变的复发/难治性急性白血病患者中表现出令人鼓舞的初步疗效。在可评估的11例FLT3突变患者中,9人出现骨髓原始细胞下降,5人降幅超过50%。同时,在FLT3野生型患者中也观察到疾病控制效果。所有接受治疗的FLT3突变患者(n=18)的中位总生存期(mOS)为3.8个月(无CYP3A4抑制剂)和3.5个月(有CYP3A4抑制剂)。该数据优于历史对照数据,接受过gilteritinib和venetoclax治疗失败后的复发/难治性FLT3突变AML患者的历史mOS仅为2.1个月。BMF-500在各个剂量水平上总体耐受良好,未报告剂量限制性毒性、QT间期延长或因治疗相关不良事件导致的停药。Misetionamide(GP-2250):公布1期临床试验的中期数据Panavance Therapeutics公司公布了其小分子疗法misetionamide(GP-2250)联用吉西他滨治疗晚期不可切除或转移性胰腺导管腺癌患者1期临床试验的中期数据。Misetionamide具有独特的作用机制,可抑制两种致癌转录因子c-MYC和NFκB。此次公布的结果显示,与单独使用吉西他滨的历史结果相比,接受misetionamide联用吉西他滨治疗患者的确认的缓解率、疾病稳定率和无进展生存期更优,约42%的患者达到部分缓解或疾病稳定。此外,misetionamide联用吉西他滨的安全性良好,与单独使用吉西他滨的预期毒性相比,没有明显的新毒性或加剧的毒性。参考资料(可上下滑动查看)[1] Enliven Therapeutics Announces Updated Positive Data from Phase 1 Clinical Trial of ELVN-001 in CML at EHA 2025 Congress. Retrieved June 20, 2025, from https://www.prnewswire.com/news-releases/enliven-therapeutics-announces-updated-positive-data-from-phase-1-clinical-trial-of-elvn-001-in-cml-at-eha-2025-congress-302481050.html[2] Beam Therapeutics Announces New Data from BEACON Phase 1/2 Clinical Trial of BEAM-101 Supporting Differentiated Profile in Sickle Cell Disease (SCD) at European Hematology Association (EHA) 2025 Congress. Retrieved June 20, 2025, from https://www.globenewswire.com/news-release/2025/06/13/3098931/0/en/Beam-Therapeutics-Announces-New-Data-from-BEACON-Phase-1-2-Clinical-Trial-of-BEAM-101-Supporting-Differentiated-Profile-in-Sickle-Cell-Disease-SCD-at-European-Hematology-Associatio.html[3] U.S. Food & Drug Administration (FDA) Approves Investigational New Drug (IND) Application for Myrio's Lead Product (PHOX2B PC-CAR T) for the Treatment of Neuroblastoma. Retrieved June 20, 2025, from U.S. Food & Drug Administration (FDA) Approves Investigational New Drug (IND) Application for Myrio's Lead Product (PHOX2B PC-CAR T) for the Treatment of Neuroblastoma[4] Intellia Therapeutics Announces Positive Three-Year Data from Phase 1 Trial of Lonvoguran Ziclumeran (lonvo-z) in Patients with Hereditary Angioedema (HAE) at the European Academy of Allergy and Clinical Immunology Congress. Retrieved June 20, 2025, from https://www.globenewswire.com/news-release/2025/06/15/3099489/0/en/Intellia-Therapeutics-Announces-Positive-Three-Year-Data-from-Phase-1-Trial-of-Lonvoguran-Ziclumeran-lonvo-z-in-Patients-with-Hereditary-Angioedema-HAE-at-the-European-Academy-of-A.html[5] Vial Initiating Phase 1 Healthy Volunteer Trial of VIAL-TL1A-HLE, a Novel Subcutaneous Half-Life Extended Anti-TL1A Antibody for the Treatment of IBD and Other Inflammatory and Fibrotic Diseases. Retrieved June 20, 2025, from https://vial.com/updates/pr/vial-initiating-phase-1-healthy-volunteer-trial-of-vial-tl1a-hle/?[6] Lyell Immunopharma Announces Positive New Clinical Data Demonstrating High Rates of Durable Complete Responses from the Phase 1/2 Trial of LYL314 for the Treatment of Aggressive Large B-cell Lymphoma. Retrieved June 20, 2025, from https://www.globenewswire.com/news-release/2025/06/17/3100483/0/en/Lyell-Immunopharma-Announces-Positive-New-Clinical-Data-Demonstrating-High-Rates-of-Durable-Complete-Responses-from-the-Phase-1-2-Trial-of-LYL314-for-the-Treatment-of-Aggressive-La.html[7] Azitra Reports Promising Safety Data from Phase 1b Trial in Netherton Syndrome. Retrieved June 20, 2025, from https://www.prnewswire.com/news-releases/azitra-reports-promising-safety-data-from-phase-1b-trial-in-netherton-syndrome-302483136.html[8] 882-P - Eloralintide, a Selective, Long-Acting Amylin Receptor Agonist for Obesity—Phase 1 Proof of Concept. Retrieved June 16, 2025 from https://eppro02.ativ.me/src/EventPilot/php/express/web/planner.php?id=ADA25[9] Positive Late-Breaking Data for Incyte’s First-in-Class mutCALR-targeted therapy INCA033989 in Essential Thrombocythemia Presented at EHA2025. Retrieved June 16, 2025 from https://investor.incyte.com/news-releases/news-release-details/positive-late-breaking-data-incytes-first-class-mutcalr-targeted[10] Oncoinvent Announces Positive Final Data from Phase 1/2a Trial of Radspherin® in Patients with Colorectal Peritoneal Metastases. Retrieved June 16, 2025 from https://www.prnewswire.com/news-releases/oncoinvent-announces-positive-final-data-from-phase-12a-trial-of-radspherin-in-patients-with-colorectal-peritoneal-metastases-302484870.html[11] Zealand Pharma announces positive topline results from 28-week Phase 1b trial with GLP-1/GLP-2 receptor dual agonist dapiglutide. Retrieved June 16, 2025 from https://www.globenewswire.com/news-release/2025/06/18/3101731/0/en/Zealand-Pharma-announces-positive-topline-results-from-28-week-Phase-1b-trial-with-GLP-1-GLP-2-receptor-dual-agonist-dapiglutide.html[12] Spyre Therapeutics Announces Positive Interim Phase 1 Results for Two Next-Generation TL1A Antibody Programs, and Provides Clinical Development Updates Expected to Deliver 9 Phase 2 Readouts. Retrieved June 20, 2025 from https://www.prnewswire.com/news-releases/spyre-therapeutics-announces-positive-interim-phase-1-results-for-two-next-generation-tl1a-antibody-programs-and-provides-clinical-development-updates-expected-to-deliver-9-phase-2-readouts-302483628.html[13] Centessa Pharmaceuticals Announces Clearance of Investigational New Drug Application (IND) for ORX142, a Novel Orexin Receptor 2 (OX2R) Agonist; Clinical Data in Acutely Sleep-Deprived Healthy Volunteers Planned for this Year. Retrieved June 20, 2025 from https://investors.centessa.com/news-releases/news-release-details/centessa-pharmaceuticals-announces-clearance-investigational-new[14] Eolo Pharma Publishes First-in-Human Study in Nature Metabolism on Novel Obesity Drug Activating Energy-Burning Pathway. Retrieved June 20, 2025 from https://www.globenewswire.com/de/news-release/2025/06/16/3099684/0/en/Eolo-Pharma-Publishes-First-in-Human-Study-in-Nature-Metabolism-on-Novel-Obesity-Drug-Activating-Energy-Burning-Pathway.html[15] Debiopharm’s ADC Research Gains Momentum With Launch of First-in-human Trial Assessing Debio 1562M in Acute Myeloid Leukemia Patients. Retrieved June 20, 2025 from https://www.businesswire.com/news/home/20250616081884/en/Debiopharms-ADC-Research-Gains-Momentum-With-Launch-of-First-in-human-Trial-Assessing-Debio-1562M-in-Acute-Myeloid-Leukemia-Patients[16] Biomea Fusion Presents Updated Preliminary Clinical Data for Covalent FLT3 Inhibitor BMF-500 in Relapsed or Refractory Acute Leukemia at EHA 2025. Retrieved June 20, 2025 from https://investors.biomeafusion.com/news-releases/news-release-details/biomea-fusion-presents-updated-preliminary-clinical-data#:~:text=The%20presentation%20by%20Dr.%20Farhad%20Ravandi%20of%20The,inhibitor%2C%20in%20heavily%20pretreated%20patients%20with%20R%2FR%20AL.[17] Panavance Therapeutics Announces Promising Misetionamide (GP-2250) Phase 1 Clinical Trial Interim Findings in Pancreatic Cancer at BIO 2025. Retrieved June 20, 2025, from https://panavance.com/press/panavance-therapeutics-announces-promising-misetionamide-gp-2250-phase-1-clinical-trial-interim-findings-in-pancreatic-cancer-at-bio-2025/[18] Astria Therapeutics Announces Positive Initial Results from the ALPHA-SOLAR Long-Term Open-Label Trial of Navenibart in Hereditary Angioedema Patients at the European Academy of Allergy and Clinical Immunology Annual Congress. Retrieved June 20, 2025, from https://ir.astriatx.com/news-releases/news-release-details/astria-therapeutics-announces-positive-initial-results-alpha[19] Johnson & Johnson's dual-targeting CAR T-cell therapy shows encouraging first results in large B-cell lymphoma. Retrieved June 20, 2025, from https://www.prnewswire.com/news-releases/johnson--johnsons-dual-targeting-car-t-cell-therapy-shows-encouraging-first-results-in-large-b-cell-lymphoma-302480701.html[20] Galapagos Presented New Data at ICML 2025 From Cohort 3 of ATALANTA-1 in Relapsed/Refractory Indolent NHL Patients, Demonstrating High Complete Response and MRD Negativity Rates With CAR-T Candidate GLPG5101. Retrieved June 20, 2025, from https://www.globenewswire.com/news-release/2025/06/18/3101896/0/en/Galapagos-Presented-New-Data-at-ICML-2025-From-Cohort-3-of-ATALANTA-1-in-Relapsed-Refractory-Indolent-NHL-Patients-Demonstrating-High-Complete-Response-and-MRD-Negativity-Rates-Wit.html免责声明:药明康德内容团队专注介绍全球生物医药健康研究进展。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