近日,复星医药子公司复宏汉霖(2696.HK)宣布,公司自主开发的纳武利尤单抗生物类似药HLX18(重组抗PD-1人源化单克隆抗体注射液)的新药临床试验(IND)申请已经获得美国食品药品监督管理局(FDA)许可,拟用于治疗多种已切除实体肿瘤。目前纳武利尤单抗已在多个国家和地区获批用于黑色素瘤(MEL)、恶性胸膜间皮瘤(MPM)、头颈部鳞状细胞癌(HNSCC)、尿路上皮癌(UC)等一系列适应症。根据IQVIA数据,纳武利尤单抗2024年度全球范围销售额为111.03亿美元。
近年来,免疫疗法为肿瘤治疗提供了新的途径,其独特的治疗优势和巨大潜力也陆续得以验证。通过与T细胞上的PD-1受体结合,纳武利尤单抗能够阻断PD-1与肿瘤细胞上的PD-L1、PD-L2的相互作用,解除PD-1通路介导的免疫应答抑制,包括抗肿瘤免疫应答,从而恢复T细胞对肿瘤的免疫监视和杀伤能力,使肿瘤调亡。HLX18是复宏汉霖严格按照中国、欧盟和美国等生物类似药法规开发的纳武利尤单抗生物类似药,经药学和非临床比对研究证明,HLX18与原研纳武利尤单抗相似。
在免疫肿瘤领域,复宏汉霖持续深化布局,形成以自主创新为引领、以生物类似药为有力补充的多层次产品体系。公司自主研发的抗PD-1单抗H药已在小细胞肺癌、胃癌围手术期治疗等多项核心适应症中展现明确的临床价值,并通过持续推进国际化临床研究与联合治疗探索,构建差异化竞争优势。在此基础上,公司依托在免疫肿瘤领域的系统性研发能力,持续推进覆盖PD-1/L1、CTLA-4等免疫靶点的多元化产品布局,围绕不同肿瘤类型和治疗场景构建互补式适应症组合,覆盖黑色素瘤、泌尿系统肿瘤、乳腺癌、淋巴瘤等多瘤种,并系统布局围手术期、一线治疗及联合治疗等关键治疗场景。其中,帕博利珠单抗生物类似药HLX17和伊匹木单抗生物类似药HLX13均已启动国际多中心I期临床研究并完成首例受试者给药;纳武利尤单抗生物类似药HLX18亦聚焦多项已确立免疫治疗价值的实体瘤适应症。多靶点免疫治疗产品在适应症定位与开发路径上的协同推进,进一步完善了公司现阶段在免疫肿瘤领域的整体产品矩阵,并为后续联合治疗及创新疗法探索奠定了坚实基础。
未来,复宏汉霖将继续聚焦未满足的临床需求,持续拓宽公司在更多疾病领域的前瞻性布局,为全球患者带去高品质、可负担的创新治疗方案。
U.S. FDA Clearance of IND for Nivolumab Biosimilar HLX18
Shanghai, China, December 19, 2025 - Shanghai Henlius Biotech, Inc. (2696.HK) announced the investigational new drug (IND) application for its HLX18, a proposed nivolumab biosimilar independently developed by the company, was approved by the U.S. Food and Drug Administration (FDA) for the treatment of certain resected solid tumors. Nivolumab has been approved in various countries and regions for a range of different indications, such as for the treatment of melanoma (MEL), malignant pleural mesothelioma (MPM), head and neck squamous cell carcinoma (HNSCC), and urinary tract cancer (urothelial carcinoma, UC). According to IQVIA, the sales volume of nivolumab worldwide for the year 2024 was approximately USD11.103 billion.
Immune checkpoint inhibitors are playing a crucial part in immunotherapy, which has emerged in recent years as a novel approach to combating tumor cells and their distinct advantages and enormous potential have been continuously validated. HLX18 is a monoclonal antibody that binds to the PD-1 receptor expressed on T cells and blocks its interaction with PD-L1 and PD-L2, releasing PD-1 pathway-mediated inhibition of the immune response, including the anti-tumor immune response, thus restoring the T-cell immune surveillance of tumors and increasing its anti-tumour efficacy.
HLX18 is a nivolumab biosimilar developed by Henlius in accordance with the NMPA, EMA, FDA and other international biosimilar guidelines. Comparative pharmaceutical quality and non-clinical studies have demonstrated that HLX18 is similar to the reference nivolumab.
In the field of immuno-oncology, Henlius continues to deepen its strategic presence in immuno-oncology, establishing a multi-tiered product portfolio led by in-house innovation and complemented by biosimilars. Henlius’ self-developed anti-PD-1 monoclonal antibody, serplulimab, has demonstrated clear clinical value across multiple key indications, including small cell lung cancer and perioperative treatment of gastric cancer. Through the continued advancement of global clinical studies and combination therapy strategies, serplulimab is building a differentiated competitive profile.
Building on this foundation, Henlius leverages its integrated immuno-oncology R&D capabilities to advance a diversified portfolio covering multiple immune targets, including PD-1/L1 and CTLA-4. The company is developing complementary indication strategies across different tumour types and treatment settings, spanning MEL, urological cancers, breast cancer and lymphoma, while systematically addressing key clinical scenarios such as perioperative treatment, first-line therapy and combination regimens.
Among these programmes, the pembrolizumab biosimilar HLX17 and the ipilimumab biosimilar HLX13 have both initiated international multi-centre phase 1 clinical studies, with first patient dosing completed. Meanwhile, the nivolumab biosimilar HLX18 is focused on multiple solid tumour indications with well-established immunotherapy value. The coordinated advancement of multi-target immuno-oncology assets, differentiated by indication positioning and development pathways, further strengthens Henlius’ overall immuno-oncology portfolio and lays a solid foundation for future combination strategies and innovative therapeutic exploration.
Looking forward, Henlius will maintain its focus on unmet medical needs, further broaden the company’s layout in more disease areas, and strive to provide high-quality and affordable treatment options for patients worldwide.
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