SSTR2

▎药明康德内容团队报道 Starget Pharma近日宣布，该公司已从Cancer Focus Fund获得510万美元投资。Starget Pharma是一家临床阶段生物技术公司，致力于开发多肽类放射配体疗法。Cancer Focus Fund是一家独特的投资基金，由MD安德森癌症中心（MD Anderson）合作成立。 根据新闻稿，本轮投资资金将用以支持肽类放射性配体疗法DOTA-PTR-58的1b期临床研究，用于治疗过度表达生长抑素受体3型（SSTR-3）的肿瘤，包括肉瘤、神经内分泌肿瘤（NET）、黑色素瘤和肝细胞癌。该试验将在MD Anderson和其他中心进行，并将于2025年初开始招募患者。 Starget Pharma正在利用其专有的Backbone Dynamics平台开发肽类放射性配体疗法。Backbone Dynamics是一种创新的多肽放射配体药物设计平台，使用专有的骨干环化技术（backbone cyclic）来创建具有更高稳定性、选择性和药代动力学的智能靶向放射配体。这些配体分子可以靶向潜在的肿瘤特异性靶点。 DOTA-PTR-58是一种超激动剂放射配体，其具有亚纳米级亲和力，可以选择性靶向SSTR-3，该受体在多种肿瘤类型中高表达，包括肉瘤、黑色素瘤、NET和肝细胞癌。与更常见的SSTR-2靶点不同，SSTR-3在正常组织中的表达较低，从而为相应的药物提供了更广泛的治疗窗口。DOTA-PTR-58包含了用Ga-68同位素成像和用Lu-177同位素、225Ac同位素治疗。在早期研究中，该分子表现出了较高的体内肿瘤摄取和内化、靶点选择性和显著的抗肿瘤活性。 除了DOTA-PTR-58，Starget公司还在推进一系列靶向放射性疗法，用以治疗难治性癌症。根据Starget公司官网，该公司研发管线中还包括了其他三款放射性疗法，靶向CCK2R、GRPR等，针对的癌症类型包括了乳腺癌、肺癌、胃肠道间质瘤等。 参考资料： [1] Starget Pharma and Cancer Focus Fund Announce $5.1 Million Investment to Support Phase 1b Clinical Trial of Novel Peptide Radioligand for Precision Cancer Therapy. Retrieved Oct 23, 2024, from https://stargetpharma.com/starget-pharma-and-cancer-focus-fund-announce-5-1-million-investment-to-support-phase-1b-clinical-trial-of-novel-peptide-radioligand-for-precision-cancer-therapy/ 本文由药明康德内容团队根据公开资料整理编辑，欢迎个人转发至朋友圈。转发授权及其他合作需求，请联系wuxi_media@wuxiapptec.com。 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。

225Ac-Satoreotide is a first-in-class somatostatin receptor 2 antagonist targeting extensive stage small cell lung cancer and is the first antagonist labelled with 225Ac to enter clinical development Satoreotide expressed a superior pharmacokinetic profile relative to DOTA-TATE with a higher pre-clinical anti-tumour efficacy, irrespective of radionuclide used 100% survival with a single dose of 30 kBq 225Ac-satoreotide but not with 225Ac-DOTA-TATE BERLIN, Oct. 22, 2024 /PRNewswire/ -- Ariceum Therapeutics (Ariceum), a private biotech company developing radiopharmaceutical products for the diagnosis and treatment of certain hard-to-treat cancers, today announces that it presented data on its proprietary radiolabelled peptide SS0110 (satoreotide), a first-in-class antagonist of the somatostatin receptor 2 (SSTR2), at this year's European Association of Nuclear Medicine (EANM) Annual Conference, held in Hamburg, Germany from 19-23 October 2024. The Top-Rated Oral Presentation (TROP) entitled '225Ac-SSO110 induces long-lasting anti-tumour responses in contrast to 225Ac-DOTA-TATE and 161Tb-DOTA-TATE in the treatment of SSTR2-positive tumour xenografts', details the anti-tumour efficacy of different radiolabelled satoreotide antagonists (225Ac, 161Tb, 177Lu-labelled SSO110) versus respective DOTA-TATE agonists (225Ac- and 161Tb-labelled DOTA-TATE) in mice engrafted with SSTR2 positive xenografts of small cell lung cancer (SCLC) and pancreatic cancer using clinically relevant associated dose ranges. Results demonstrate that 225Ac-satoreotide shows the strongest anti-tumoural effect in vivo at a low single dose when evaluating satoreotide and DOTA-TATE radiolabelled with different radionuclides. Irrespective of the radionuclides used, satoreotide demonstrated a higher pre-clinical anti-tumour efficacy when compared to DOTA-TATE which was less potent and required increased dose levels. Satoreotide was well tolerated across all dose levels and with all used radionuclides. These comparisons between satoreotide and DOTA-TATE will facilitate and guide further clinical development of satoreotide across multiple indications expressing SSTR2, such as SCLC, pancreatic cancers and Merkel Cell Carcinoma (MCC). Previous comparisons between satoreotide and DOTA-TATE demonstrated that antagonist, 225Ac-satoreotide, is multiple times more potent than SSTR2 agonist, 225Ac-DOTA-TATE, signifying a durable complete response in standard murine xenograft models of SCLC in animal models, versus tumour growth delay. Ariceum had previously shown at the Society of Nuclear Medicine and Molecular Imaging (SNMMI) Annual Meeting 2024 that 212Pb was not seen to be more potent than Lutetium or Terbium but caused more side effects and hence was not further pursued. Manfred Rüdiger, Chief Executive Officer at Ariceum Therapeutics, said: "These results provide strong evidence for satoreotide and its potential to clinically outperform SSTR2 targeting agonists, by demonstrating significantly better efficacy in tumour growth control, up to complete tumour eradication depending on isotope used. In addition, when a single dose of 30 kBq 225Ac-satoreotide was administered, we observed high frequency of complete durable responses and 100% survival which strongly supports further clinical development for the treatment of SCLC, MCC and other cancers." Details of the oral presentation are as follow: Title: 225Ac-SSO110 induces long-lasting anti-tumour responses in contrast to 225Ac-DOTA-TATE and 161Tb-DOTA-TATE in the treatment of SSTR2-positive tumour xenografts Presenting Author: Prachi Desai, Scientist at Ariceum Therapeutics Session Number: 1204 Session Title: M2M Track - TROP Session: Radiopharmaceutical Sciences + Translational Molecular Imaging & Therapy Committee: From Radionuclide to Clinical Translation Oral Presentation Date & Time: Tuesday 22 October 2024, 09:00 AM – 09:10 AM CEST Abstract Authors: Prachi Desai, Manuel Sturzbecher-Hoehne, Dennis Mewis, Manfred Ruediger & Anika Jaekel of Ariceum Therapeutics Session Date & Time: Tuesday 22 October 2024, 08:00 AM – 09:30 AM CEST Location: Session Hall X1-X4 Abstracts are available in the September edition of Springer's European Journal of Nuclear Medicine and Molecular Imaging (EJNMMI) abstract book here and on the Ariceum website here. About Ariceum Therapeutics Ariceum Therapeutics (Ariceum) is a private, clinical stage radiopharmaceutical company focused on the diagnosis and precision treatment of certain neuroendocrine and other aggressive, hard-to-treat cancers. The name Ariceum is an anagram of 'Marie Curie' whose discovery of radium and polonium have been huge contributions to finding treatments for cancer. Ariceum's lead targeted systemic radiopharmaceutical product, 177Lu-satoreotide tetraxetan ("Satoreotide"), is an antagonist of the somatostatin type 2 (SSTR2) receptor which is overexpressed in neuroendocrine tumours (NETs) and some aggressive cancers such as small cell lung cancer (SCLC), or Merkel Cell Carcinoma (MCC), all of which have few treatment options and poor prognosis. Satoreotide is being developed as a 'theranostic' pair for the combined diagnosis and targeted radionuclide treatment of these tumours. Ariceum is also developing a radiolabelled PARP-inhibitor (ATT001), currently in Phase 1 clinical development under the trial name CITADEL-123. ATT001 was part of the acquisition of Theragnostics Ltd which was closed in June 2023. Ariceum Therapeutics, launched in 2021, acquired all rights to Satoreotide from Ipsen. Ipsen remains a shareholder in the Company. Ariceum is headquartered in Berlin, with operations in Germany, Switzerland, Australia, United Kingdom and United States of America and with activities currently across the globe. Ariceum is led by a highly experienced management team and supported by specialist investors including EQT Life Sciences (formerly LSP), HealthCap, Pureos Bioventures, Andera Partners and Earlybird Venture Capital. For further information, please visit . About European Association of Nuclear Medicine (EANM) The European Association of Nuclear Medicine (EANM) is a non-profit organization that promotes nuclear medicine and aims to improve public health. The EANM's mission is to advance nuclear medicine through personalized healthcare, innovation in diagnosis and treatment, and raising awareness of nuclear medicine SOURCE Ariceum Therapeutics WANT YOUR COMPANY'S NEWS FEATURED ON PRNEWSWIRE.COM? 440k+ Newsrooms & Influencers 9k+ Digital Media Outlets 270k+ Journalists Opted In GET STARTED

中国苏州，2024年10月21日——基石药业（股票代码：2616.HK），一家专注于抗肿瘤药物研发的创新驱动型生物医药企业，今日宣布，公司自主研发的抗体偶联药物(ADC)CS5006的专利（WO/2024/208354）已于2024年10月10日公开。 CS5006是一款同类首创、具有全新靶点的抗体偶联药物（ADC）——靶向整合素β4 (ITGB4)。ITGB4是一种跨膜蛋白，仅与整合素α6 (ITGA6) 结合形成异二聚体（α6β4），并以层粘连蛋白作为细胞外配体。ITGB4被视为多种肿瘤的标志物，其高表达与肿瘤的侵袭性和不良预后相关。我们通过内部精心构建的生物信息学平台、结合前沿AI算法分析以及综合对比已发表的文献，发现ITGB4在非小细胞肺癌、结直肠癌、食管鳞状细胞癌和头颈部鳞状细胞癌等多种适应症中高度表达，是理想的靶向治疗候选分子。 在CS5006的研发过程中，基石药业将候选单克隆抗体与已在临床验证的连接子及包括GGFG-DXd和VC-MMAE在内的药物载荷相结合，作为模型ADC分子，以支持项目的概念验证研究。体外研究结果表明，CS5006-GGFG-DXd和CS5006-VC-MMAE ADCs在肿瘤细胞内化后，均能高效释放细胞毒素，迅速杀死肿瘤细胞。体内研究结果进一步验证了这两种ADC强大的抗肿瘤活性和符合预期的耐受性，为其下一步临床开发提供了有力的数据支持。目前，CS5006采用了自主知识产权的连接子，已接近完成临床前候选分子（PCC）的筛选，预计将于2025年提交新药临床研究（IND）申请。 基石药业首席执行官、研发总裁、执行董事杨建新博士表示： “CS5006专利的公布，不仅展示了我们在ADC领域的创新成果，更突显了基石药业从研发到商业化的全链条能力。我们对CS5006以及其他创新ADC项目的临床潜力充满期待，希望它们能为全球癌症患者带来突破性的治疗方案。” 此外，基石药业还在积极推进新一代拥有自主知识产权的连接子的开发，以提升当前广泛使用的连接子（如GGFG四肽连接子和VA/C二肽连接子）的亲水性和肿瘤选择性。这些新型连接子将更大限度地保障ADC的安全性和药效表现、大大增加连接子适配靶点和抗体分子的灵活性、并支持基石管线2.0中的多个ADC项目，包括靶向SSTR2的CS5005、靶向ITGB4的CS5006、靶向EGFR/HER3的CS5007等等。 关于基石药业 基石药业（香港联交所代码: 2616）成立于2015年底，是一家专注于抗肿瘤药物研发的创新驱动型生物医药企业，致力于满足中国和全球癌症患者的殷切医疗需求。截至目前，公司已成功上市4款创新药、获批15项新药上市申请（NDA）以及9项适应症。当前研发管线均衡配置了潜在同类首创或同类最佳的抗体偶联药物（ADC）、多特异性抗体、以及免疫疗法和精准治疗药物在内的16款候选药物。同时，基石药业拥有一支资深管理团队，“全链条”覆盖临床前探索、临床转化、临床开发、药物生产、商务拓展、商业运营等关键环节。 如需了解有关基石药业的更多信息，请访问： www.cstonepharma.com。  投资者关系: ir@cstonepharma.com 媒体关系: pr@cstonepharma.com 前瞻性声明 本文所作出的前瞻性陈述仅与本文作出该陈述当日的事件或资料有关。除法律规定外，于作出前瞻性陈述当日之后，无论是否出现新资料、未来事件或其他情况，我们并无责任更新或公开修改任何前瞻性陈述及预料之外的事件。请细阅本文，并理解我们的实际未来业绩或表现可能与预期有重大差异。本文内所有陈述乃本文章刊发日期作出，可能因未来发展而出现变动。 声明：仅供医疗卫生专业人士交流使用。