Efdamrofusp alfa

SAN FRANCISCO, CA, USA and SUZHOU, China I May 6, 2025 I Innovent Biologics, Inc. (“Innovent”) (HKEX: 01801), a world-class biopharmaceutical company that develops, manufactures and commercializes high quality medicines for the treatment of oncology, cardiovascular and metabolic, autoimmune, ophthalmology and other major diseases, announces the completion of first patient dosing in the Phase 2 clinical study of efdamrofusp alfa (R&D code: IBI302), a recombinant human vascular endothelial growth factor receptor (VEGFR)-antibody human complement receptor 1 (CR1) fusion protein, for the treatment of diabetic macular edema (DME). This randomized, double-masked, multi-center, active-controlled Phase 2 clinical study (NCT06908876) aims to evaluate the efficacy and safety of intravitreal injections of efdamrofusp alfa in DME patients. A total of 150 participants will be enrolled and randomized in a 1:1:1 ratio to the IBI302 4 mg group, the IBI302 8 mg group, and the Faricimab (anti-VEGF/ANG-2 bispecific antibody) 6 mg group. The primary endpoint is the change in best corrected visual acuity (BCVA) from baseline in the study eye at week 16. DME has become the leading cause of vision impairment among the diabetic population in China : According to statistics, China has over 140 million diabetic patients, with approximately one-third of them developing diabetic retinopathy (DR). Among patients with DR, the prevalence rate of DME ranges from 7% to 14%, indicating an estimated 4 to 5 million DME patients in China 1 . DME development is primarily driven by microvascular damage mediated by VEGF upregulation and inflammatory factors 2 . Complement activation is also involved in the development of DME by damaging the neurovascular units through cytolysis, opsonization, and promotion of proinflammatory microenvironment, leading to retinal microvascular lesions, neurodegeneration, and macular edema 3 . At present, intravitreal injections of anti-VEGF agents or glucocorticoids are key treatment strategies, effectively improving visual acuity and retinal edema. However, frequent intravitreal injections (every 4 to 8 weeks) can result in poor patient compliance and increased risk of complications such as cataract and elevated intraocular pressure, making it challenging to achieve sustained visual acuity benefits with long-term treatment 4,5 . In recent years, bispecific antibodies represented by Faricimab have demonstrated significant efficacy and extended dosing intervals in patients with DME; Faricimab currently represents the highest global treatment standard for DME. Efdamrofusp alfa, the first-in-class bispecific fusion protein targeting VEGF and complement, can simultaneously inhibit angiogenesis and vascular leakage mediated by VEGF, and inflammatory responses mediated by complement activation. To date, multiple clinical studies of efdamrofusp alfa have been conducted in patients with neovascular age-related macular degeneration (nAMD) and DME, among which high-dose (8 mg) efdamrofusp alfa has shown significant efficacy in improving visual acuity and retinal edema. Meanwhile, efdamrofusp alfa has demonstrated the potential for extended dosing intervals (up to 12-16 weeks), with favorable safety and tolerability. Professor Xiaodong Sun, the leading Principal Investigator of this Study, Deputy Director of Shanghai General Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, and Director of the Ophthalmology Center, stated, ” DME is one of the most common ocular fundus diseases in China, affecting up to 4- to 5 million patients. With increasingly the aging of the population and the continuous rise in diabetes prevalence in China, DME has become one of the diseases that seriously endangers public health, imposing heavy burdens to the society and individuals. Anti-VEGF drugs are currently the first-line treatment for DME, but huge unmet medical needs remain, such as frequent injections, long-term efficacy attenuation, and suboptimal response in a subset of patients . As a global first-in-class anti-VEGF-complement bispecific drug, efdamrofusp alfa has shown favorable safety profile, substantial improvement in visual acuity and macular edema, and the potential of extended dosing interval in the completed Phase 1 clinical study in DME patients, which has brought great confidence to our investigator team. efdamrofusp alfa. We look forward to the success of this Phase 2 study, hoping to provide of a new treatment option for a large number of DME patients.” Dr. Lei Qian, Senior Vice President of Clinical Development of Innovent, stated, “Efdamrofusp alfa is an anti-VEGF-complement bispecific fusion protein self-developed by Innovent with global proprietary rights. This clinical study will be globally the first study comparing two dual-target agents, using Faricimab, the global standard of care in DME. We look forward to the success of this study, which could provide support for a Phase 3 clinical trial and a new treatment option for patients. Innovent’s general biomedicine pipeline covers cardiovascular, endocrine and metabolic, ophthalmology, and autoimmune disease areas. We will continue to develop new therapies, providing physicians with more clinical treatment options and benefiting more patients.” About diabetic macular edema Diabetic retinopathy (DR) is a series of lesions caused by retinal microvascular damage resulting from diabetes and is the main microvascular complication of diabetes. Diabetic macular edema (DME), featuring retinal edema, thickening and exudation, is caused by capillary leakage in the macular area. It is the result of the blood-retinal barrier (BRB) destruction and mainly affects central vision. At present, DR has become the leading cause of blindness among the working-age population worldwide, while DME has become the main cause of visual impairment among the diabetic population 6 . The pathological mechanisms of DR and DME are multifactorial, involving metabolic abnormalities related to hyperglycemia, oxidative stress, and inflammation. These processes lead to the upregulation of vasoactive factors such as VEGF, which subsequently disrupt the BRB and increase vascular permeability, manifesting clinically as retinal edema and exudation. When the macular area is involved, it develops into DME 2 . Additionally, complement system activation contributes to disease progression by damaging the neurovascular units through cytolysis, opsonization, and promotion of proinflammatory microenvironment, causing retinal microvascular lesions, neurodegeneration, macular edema, and retinal neovascularization 3 . About Effamrofusp Alfa (IBI302) Efdamrofusp alfa is a recombinant, fully human bispecific fusion protein developed by Innovent Biologics with global intellectual property rights. The N-terminal is the VEGF-binding domain, which can bind to the VEGF family to block the VEGF-mediated signaling pathway, inhibiting the survival and proliferation of vascular endothelial cells, thereby inhibiting angiogenesis, reducing vascular permeability, and reducing vascular leakage. The C-terminal is the complement binding domain, which can inhibit complement activation through the classical pathway and the bypass pathway by specifically binding to C3b and C4b, and thereby alleviate the inflammatory response mediated by complement activation. Through this dual mechanism, efdamrofusp alfa exerts its therapeutic effects by inhibiting both VEGF-mediated angiogenesis and complement activation pathways. About Innovent Innovent is a leading biopharmaceutical company founded in 2011 with the mission to empower patients worldwide with affordable, high-quality biopharmaceuticals. The company discovers, develops, manufactures and commercializes innovative medicines that target some of the most intractable diseases. Its pioneering therapies treat cancer, cardiovascular and metabolic, autoimmune and eye diseases. Innovent has launched 15 products in the market. It has 3 new drug applications under regulatory review, 4 assets in Phase III or pivotal clinical trials and 15 more molecules in early clinical stage. Innovent partners with over 30 global healthcare companies, including Eli Lilly, Sanofi, Incyte, Adimab, LG Chem and MD Anderson Cancer Center. Guided by the motto, “Start with Integrity, Succeed through Action,” Innovent maintains the highest standard of industry practices and works collaboratively to advance the biopharmaceutical industry so that first-rate pharmaceutical drugs can become widely accessible. For more information, visit www.innoventbio.com , or follow Innovent on Facebook and LinkedIn. Statement: Innovent does not recommend the use of any unapproved drugs/indications. References 1.     中华医学会眼科学分会眼底病学组, 中国医师协会眼科医师分会眼底病学组. 我国糖尿病视网膜病变临床诊疗指南（2022年）. 中华眼底病杂志. 2023;39(02):99-124. 2.     Kusuhara S, Fukushima Y, Ogura S, Inoue N, Uemura A. Pathophysiology of Diabetic Retinopathy: The Old and the New. Diabetes Metab J. 2018;42(5):364-376. 3.     Jiang F, Lei C, Chen Y, Zhou N, Zhang M. The complement system and diabetic retinopathy. Surv Ophthalmol. 2024;69(4):575-584. 4.     Ehlken C, Ziemssen F, Eter N, et al. Systematic review: non-adherence and non-persistence in intravitreal treatment. Graefes Arch Clin Exp Ophthalmol. 2020;258(10):2077-2090. 5.     Ciulla TA, Bracha P, Pollack J, Williams DF. Real-world Outcomes of Anti-Vascular Endothelial Growth Factor Therapy in Diabetic Macular Edema in the United States. Ophthalmol Retina. 2018;2(12):1179-1187. 6.     Tan GS, Cheung N, Simó R, et al. Diabetic macular oedema. Lancet Diabetes Endocrinol, 2017, 5(2): 143-155. SOURCE: Innovent Biologics

2025年5月7日，美国旧金山和中国苏州——信达生物制药集团（香港联交所股票代码：01801），一家致力于研发、生产和销售肿瘤、自身免疫、代谢及心血管、眼科等重大疾病领域创新药物的生物制药公司，宣布其研发的重组人血管内皮生长因子受体（VEGFR）和人补体受体1（CR1）融合蛋白 依莫芙普注射液（研发代号：IBI302）的一项II期临床研究完成首例受试者给药。本研究是一项在糖尿病黄斑水肿（DME）受试者中进行的随机、双盲、多中心、活性对照的II期临床研究（NCT06908876），旨在评估玻璃体腔注射IBI302在DME受试者中的疗效和安全性。本试验计划入组150例受试者，按1:1:1比例随机分配至IBI302 4 mg组、IBI302 8 mg组和法瑞西单抗（抗VEGF/ANG-2双抗）6 mg组。主要终点为第16周时研究眼最佳矫正视力字母数 (BCVA) 较基线的改变。DME已成为中国糖尿病人群中出现视力损害的最主要原因：据统计，中国糖尿病患者数量超过1.4亿，其中约三分之一患者合并糖尿病视网膜病变（DR）1；DR患者中，DME患病率为7%~14%，预计中国DME患者约在400~500万。DME发病机制复杂，血管内皮细胞生长因子（VEGF）和炎症介质表达上调介导的微血管损害是DME发生和疾病进展的主要原因2。此外，补体活化也参与了DME的发生发展，主要通过细胞溶解、调理作用和介导促炎微环境等破坏神经血管单元，造成视网膜微血管病变、神经变性及黄斑水肿等3。目前，玻璃体腔注射抗VEGF药物或者糖皮质激素是DME治疗的重要手段，可有效改善视网膜水肿，提高视力，但是频繁玻璃体腔注射（每4~8周一次）存在患者依从性较差的问题，同时会引起白内障、眼压升高等并发症的风险，长期治疗视力获益亦难以达到预期4,5。近年来新型药物如以法瑞西单抗为代表的双特异性抗体进入市场后，极大的提升了治疗标准，并显著的拉长了治疗间隔，法瑞西单抗代表了全球目前DME最高的治疗标准。依莫芙普作为全球首个靶向VEGF和补体的双特异性融合蛋白，可以同时抑制VEGF介导的血管新生、血管渗漏和补体不同途径活化介导的炎症反应。目前，依莫芙普已在新生血管性年龄相关性黄斑变性（nAMD）、DME患者中开展多项临床研究，其中高剂量（8 mg）依莫芙普展现出改善视力和视网膜水肿的显著疗效，同时长给药间隔潜力凸显（最长可达12~16周），并具有良好的安全性和耐受性。该研究的主要研究者、上海交通大学医学院附属第一人民医院副院长、眼科中心主任孙晓东教授表示：“DME是中国常见的眼底疾病之一，影响人口可达400~500万；随着我国老龄化加重和糖尿病患病率的持续走高，DME已经成为严重危害我国人民群众的疾病之一，给国家、社会和个人都带来了沉重的负担。目前DME一线治疗药物是抗VEGF药物，但仍存在巨大的未满足的临床需求：其治疗过程存在频繁注射、长期疗效衰减、部分患者疗效欠佳等问题，给广大患者带来诸多不便和经济负担。作为全球首创的抗VEGF-补体双靶点药物，依莫芙普在DME患者中已完成的临床I期研究中安全性良好，明显改善视力和黄斑水肿，并具有长间隔给药的潜力，这给研究者带来了很大的信心。依莫芙普在DME患者中的II期临床研究将进一步探索其疗效和安全性，期待该研究取得成功，为广大DME患者提供全新的治疗方案。”信达生物制药集团临床开发高级副总裁钱镭博士表示：“依莫芙普是信达生物拥有全球自主知识产权的抗VEGF-补体双靶点分子。本研究中，依莫芙普将挑战本领域全球当前最高的治疗标准，本研究也是全球第一个双靶点创新药物之间的对决，以法瑞西单抗为阳性对照的随机双盲对照临床研究。我期待并非常有信心本研究能取得成功，为III期研究提供支持，争取早日为医生提供更多的临床治疗方案选择，造福更多患者。”关于糖尿病黄斑水肿- 滑动查看更多介绍 -糖尿病视网膜病变（DR）是糖尿病导致的视网膜微血管损害所引起的一系列病变，是糖尿病的主要微血管并发症。糖尿病黄斑水肿（DME）则是由于黄斑区毛细血管渗漏所致的视网膜水肿增厚、渗出，是血视网膜屏障（BRB）破坏的结果，主要影响中心视力，可发生在DR的任何阶段。目前DR已成为全球工作年龄人群首位的致盲眼病，而DME已成为糖尿病人群中出现视力损害的最主要原因6。DR和DME的病理机制复杂，主要与高血糖相关代谢异常、氧化应激及炎症反应有关，引起VEGF等血管活性因子表达上调，进而破坏血视网膜屏障；持续的炎症状态会增加血管通透性，临床表现为视网膜水肿、渗出，累及黄斑区时即发展为DME2。此外，补体系统活化也参与到DR和DME的发生发展过程中，主要通过细胞溶解、调理作用和介导促炎微环境等破坏神经血管单元，造成视网膜微血管病变、神经变性、黄斑水肿以及视网膜新生血管等3。关于依莫芙普（IBI302）- 滑动查看更多介绍 -依莫芙普是信达生物拥有全球知识产权的一种双特异性重组全人源融合蛋白,研发代号：IBI302。N端为VEGF结合域，能够与VEGF家族结合阻断VEGF介导的信号通路，抑制血管内皮细胞的生存、增殖，从而抑制血管新生，降低血管渗透性，减少血管渗漏；C端为补体结合域，能够通过特异性结合C3b和C4b，抑制补体经典途径和旁路途经的激活，减轻补体活化介导的炎症反应。IBI302通过同时抑制VEGF介导的新生血管生成和补体活化通路，发挥治疗作用。关于信达生物- 滑动查看更多介绍 -“始于信，达于行”，开发出老百姓用得起的高质量生物药，是信达生物的使命和目标。信达生物成立于2011年，致力于研发、生产和销售肿瘤、自身免疫、代谢、眼科等重大疾病领域的创新药物，让我们的工作惠及更多的生命。公司已有15个产品获得批准上市，它们分别是信迪利单抗注射液（达伯舒®），贝伐珠单抗注射液（达攸同®），阿达木单抗注射液（苏立信®），利妥昔单抗注射液（达伯华®），佩米替尼片（达伯坦®），奥雷巴替尼片（耐立克®）， 雷莫西尤单抗注射液（希冉择®），塞普替尼胶囊（睿妥®），伊基奥仑赛注射液（福可苏®），托莱西单抗注射液（信必乐®），氟泽雷塞片（达伯特®），匹妥布替尼片(捷帕力®)，己二酸他雷替尼胶囊（达伯乐®），利厄替尼片（奥壹新®）和替妥尤单抗N01注射液（信必敏®）。目前，同时还有3个品种在NMPA审评中，4个新药分子进入III期或关键性临床研究，另外还有15个新药品种已进入临床研究。公司已与礼来、罗氏、赛诺菲、Adimab、Incyte和MD Anderson 癌症中心等国际合作方达成30多项战略合作。信达生物在不断自研创新药物、谋求自身发展的同时，秉承经济建设以人民为中心的发展思想。多年来，始终心怀科学善念，坚守“以患者为中心”，心系患者并关注患者家庭，积极履行社会责任。公司陆续发起、参与了多项药品公益援助项目，让越来越多的患者能够得益于生命科学的进步，买得到、用得起高质量的生物药。截至目前，信达生物患者援助项目已惠及20余万普通患者，药物捐赠总价值36亿元人民币。信达生物希望和大家一起努力，提高中国生物制药产业的发展水平，以满足百姓用药可及性和人民对生命健康美好愿望的追求。   详情请访问公司网站：www.innoventbio.com或公司领英账号：Innovent Biologics。声明：1.信达不推荐任何未获批的药品/适应症使用。2.雷莫西尤单抗注射液（希冉择®），塞普替尼胶囊（睿妥®）和匹妥布替尼片（捷帕力®）由礼来公司研发。参考文献1.中华医学会眼科学分会眼底病学组, 中国医师协会眼科医师分会眼底病学组. 我国糖尿病视网膜病变临床诊疗指南（2022年）. 中华眼底病杂志. 2023;39(02):99-124.2.Kusuhara S, Fukushima Y, Ogura S, Inoue N, Uemura A. Pathophysiology of Diabetic Retinopathy: The Old and the New. Diabetes Metab J. 2018;42(5):364-376.3.Jiang F, Lei C, Chen Y, Zhou N, Zhang M. The complement system and diabetic retinopathy. Surv Ophthalmol. 2024;69(4):575-584.4.Ehlken C, Ziemssen F, Eter N, et al. Systematic review: non-adherence and non-persistence in intravitreal treatment. Graefes Arch Clin Exp Ophthalmol. 2020;258(10):2077-2090.5.Ciulla TA, Bracha P, Pollack J, Williams DF. Real-world Outcomes of Anti-Vascular Endothelial Growth Factor Therapy in Diabetic Macular Edema in the United States. Ophthalmol Retina. 2018;2(12):1179-1187.6.Tan GS, Cheung N, Simó R, et al. Diabetic macular oedema. Lancet Diabetes Endocrinol, 2017, 5(2): 143-155.前瞻性声明本新闻稿所发布的信息中可能会包含某些前瞻性表述。这些表述本质上具有相当风险和不确定性。在使用“预期”、“相信”、“预测”、“期望”、“打算”及其他类似词语进行表述时，凡与本公司有关的，均属于前瞻性表述。本公司并无义务不断地更新这些预测性陈述。这些前瞻性表述是基于本公司管理层在做出表述时对未来事务的现有看法、假设、期望、估计、预测和理解。这些表述并非对未来发展的保证，会受到风险、不确性及其他因素的影响，有些是超出本公司的控制范围，难以预计。因此，受我们的业务、竞争环境、政治、经济、法律和社会情况的未来变化及发展的影响，实际结果可能会与前瞻性表述所含资料有较大差别。本公司、本公司董事及雇员代理概不承担 (a) 更正或更新本网站所载前瞻性表述的任何义务;及 (b) 若因任何前瞻性表述不能实现或变成不正确而引致的任何责任。