2025年11月2日,复宏汉霖(2696.HK)于2025肺癌前沿及创新国际论坛上公布公司自主研发的重组抗EGFR单克隆抗体HLX07联合抗PD-1单抗H药 汉斯状®(斯鲁利单抗)用于一线治疗EGFR高表达晚期或转移性鳞状非小细胞肺癌(sqNSCLC) II 期剂量探索研究的最新随访数据。2025年9月,该研究于世界肺癌大会(World Conference on Lung Cancer)公布中位随访18.6个月的数据,此次更新数据显示,在中位随访23.5个月时,该联合方案持续展现出与此前一致的疗效与安全性结果,进一步验证了该联合方案在EGFR高表达sqNSCLC人群中的临床获益潜力。
EGFR高表达人群:庞大但被忽视的临床空白
在全球非小细胞肺癌(NSCLC)患者中,EGFR高表达的比例约为40%–89%(取决于病理分型、种族等因素),意味着每年有数百万新发患者属于这一人群1-3。在sqNSCLC患者中,这一比例更高,接近90%1,2。值得注意的是,EGFR高表达与EGFR敏感突变并不等同,二者之间的相关性较低4。经典敏感性EGFR突变在sqNSCLC总体较为罕见5。这意味着,多数 EGFR高表达的鳞癌患者并不携带敏感性EGFR突变,因此无法从EGFR-TKI(酪氨酸激酶抑制剂)类靶向药中获益5。
目前,晚期或转移性sqNSCLC的一线标准治疗以PD-(L)1抑制剂联合化疗为主,但这些研究未针对EGFR表达水平进行患者筛选。这意味着EGFR高表达患者的治疗反应尚未得到充分研究和验证。这一人群仍缺乏基于生物标志物的精准治疗方案,临床实践多沿用“非分层”的通用方案,其治疗反应或存在显著差异的空间。
机制优势:双靶点协同,优势互补
西妥昔单抗是首批进入临床并在结直肠癌及头颈部鳞癌中获得批准的EGFR靶向单克隆抗体,然而其在肺癌的一线治疗中尚未获得适应症批准6-9。相比之下,复宏汉霖自主开发的HLX07具备更低的免疫原性和更好的靶点亲和力;同时通过Fc端改造,显著延长半衰期,实现三周一次给药,与免疫治疗给药节奏高度契合,不仅提升了联合治疗的便利性,也有助于保持持续的协同抗肿瘤效应。临床前研究表明,HLX07具有更出色的生物活性,在不同肿瘤模型中均能显著抑制肿瘤细胞的生长,并与H药显示出很强的协同作用10。H药作为全球首个一线获批用于广泛期小细胞肺癌的抗PD-1单抗,迄今已覆盖全球近半数人口。两者联用,不仅阻断EGFR生长信号,更同步激活免疫应答,极具联合协同治疗潜力。
临床信号积极,安全性可控
HLX10HLX07-sqNSCLC-201研究是一项随机、多中心的II期剂量探索研究,包括4个部分,评估了HLX07(不同剂量)、斯鲁利单抗和化疗的多种组合。第3部分评估了三药组合的初步有效性,EGFR高表达(H评分≥150)且无既往系统治疗的患者被1:1随机分至两组,分别接受静脉注射HLX07 800 mg或1000 mg,联合斯鲁利单抗和化疗。
在最新的中位随访23.5个月分析中,两个剂量组均实现了约70%的客观缓解率(ORR)和超过90%的疾病控制率(DCR),与18.6个月随访时的数据保持一致。高剂量组的中位无进展生存期(PFS)为17.4个月,低剂量组的中位PFS在随访时仍未达到;两组的中位总生存期(mOS)和持续缓解时间(mDOR)均未达到。这意味着HLX07联合H药及化疗的治疗获益不仅早期显著,而且在更长的时间维度上得以维持,进一步增强了该方案在EGFR高表达sqNSCLC人群中的潜在临床价值。多数治疗期间的不良事件(TEAEs)如皮疹等均在可控范围内,与先前结果一致,未观察到新的安全性信号。
详细数据
截至2025年7月31日,共有27例患者参与并随机分配至研究第3部分的A组(n=13)或B组(n=14)。两组患者分别每三周一次接受800 mg HLX07(A组)或1000 mg HLX07(B组)联合300 mg斯鲁利单抗和化疗。15例(55.6%)患者患有转移性sqNSCLC。中位随访时间为23.5个月。
A组和B组中,盲态独立中心审查委员会(BICR)根据RECIST 1.1评估的确认ORR分别为69.2%(95% 置信区间[CI] 38.6–90.9)和71.4%(95% CI 41.9–91.6),疾病控制率分别为92.3%(95% CI 64.0–99.8)和100%(95% CI 76.8–100.0)。A组的中位PFS尚未达到,B组中位PFS为17.4个月(95% CI 8.1–不可评估)。截至数据截止日期,两组的mOS和mDOR均未达到。两组所有患者均报告了治疗期间不良事件(TEAEs),常见的≥3级TEAEs以皮肤反应、电解质紊乱为主,与同类药物相比,未发现新的安全性信号。
复宏汉霖在肺癌治疗领域持续深耕,从H药引领小细胞肺癌免疫治疗,到HLX43、HLX07等多元管线布局非小细胞肺癌多个分子特征,公司正逐步构建差异化、全人群覆盖的免疫治疗产品矩阵。本研究的更长随访结果进一步验证了EGFR靶向与免疫治疗联合的可行路径,也为EGFR高表达sqNSCLC人群的精准治疗提供了新的思路和希望。
【参考文献】
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[2] Karlsen E-A, Kahler S, Tefay J, Joseph SR, Simpson F. Epidermal Growth Factor Receptor Expression and Resistance Patterns to Targeted Therapy in Non-Small Cell Lung Cancer: A Review. Cells. 2021; 10(5):1206. https://doi-org.libproxy1.nus.edu.sg/10.3390/cells10051206
[3] The Cancer Genome Atlas Research Network. Comprehensive genomic characterization of squamous cell lung cancers. Nature 489, 519–525 (2012). https://doi-org.libproxy1.nus.edu.sg/10.1038/nature11404
[4] Hadimaleki S, Sarmadian R, Gilani A, Mehrasa P, Esfahani A, Raeisi M, Roosta Y, Vahedi A. Analysis of EGFR Mutation and Its Association with PD-L1, ALK, and ROS1 Alterations in Patients with Non-Small-Cell Lung Cancer: The Most Extensive Study Conducted in Iran. Turk J Pathol. 2025;41(3):71-76. doi:10.5146/tjpath.2025.13827
[5] The Cancer Genome Atlas Research Network. Comprehensive genomic characterization of squamous cell lung cancers. Nature 489, 519–525 (2012). https://doi-org.libproxy1.nus.edu.sg/10.1038/nature11404
[6] 国家药品监督管理局(NMPA). 爱必妥(西妥昔单抗)注射液 说明书(最新版本). NMPA说明书/信息公开平台. 检索日期:2025-10-28. https://www.nmpa.gov.cn/
[7] U.S. Food and Drug Administration. Erbitux (cetuximab) Prescribing Information. Accessed 2025-10-28. https://www.accessdata.fda.gov/
[8] European Medicines Agency (EMA). Erbitux 5 mg/mL concentrate for solution for infusion: Summary of Product Characteristics. Accessed 2025-10-28. https://www.ema.europa.eu/en/medicines/human/EPAR/erbitux
[9] Ciardiello F, Tortora G. EGFR antagonists in cancer treatment. New England Journal of Medicine. 2008;358(11):1160–1174. doi:10.1056/NEJMra0707704.
[10] Tseng,Yun-Chih Cheng, Chieh-Hsin Ho, Shih Chieh Chen, Yanling Wang, Eugene Liu,Hassan Issafras & Weidong Jiang (2021) Distinguishing features of a novelhumanized anti-EGFR monoclonal antibody based on cetuximab with superiorantitumor efficacy, Expert Opinion on Biological Therapy, 21:11, 1491-1507.
关于复宏汉霖
复宏汉霖(2696.HK)是一家国际化的创新生物制药公司,致力于为全球患者提供可负担的高品质生物药,产品覆盖肿瘤、自身免疫疾病、眼科疾病等领域,已在全球获批上市9款产品,4个上市申请分别获中国药监局、美国FDA和欧盟EMA受理。自2010年成立以来,复宏汉霖已建成一体化生物制药平台,高效及创新的自主核心能力贯穿研发、生产及商业运营全产业链。公司已建立完善高效的全球创新中心,按照国际药品生产质量管理规范(GMP)标准进行生产和质量管控,不断夯实一体化综合生产平台,其中,公司商业化生产基地已相继获得中国、欧盟和美国GMP认证。
复宏汉霖前瞻性布局了一个多元化、高质量的产品管线,涵盖约50个分子,并全面推进基于自有抗PD-1单抗H药汉斯状®的肿瘤免疫联合疗法。截至目前,公司已获批上市产品包括全球首个获批一线治疗小细胞肺癌的抗PD-1单抗汉斯状®(斯鲁利单抗,欧洲商品名:Hetronifly®)、自主研发的中美欧三地获批单抗生物类似药汉曲优®(曲妥珠单抗,美国商品名:HERCESSI™,欧洲商品名:Zercepac®)、国内首个生物类似药汉利康®(利妥昔单抗)、以及地舒单抗生物类似药Bildyos®和Bilprevda®。公司亦同步就19个产品在全球范围内开展30多项临床试验,对外授权全面覆盖欧美主流生物药市场和众多新兴市场。
Henlius Announces Updated Follow-up Results of Anti-EGFR MAb HLX07 Combined with Serplulimab in First-Line Treatment of EGFR-High Squamous NSCLC
Shanghai, November 2, 2025 — Henlius (2696.HK) announced the latest follow-up results of its independently developed recombinant anti-EGFR mAb HLX07 in combination with the anti-PD-1 mAb serplulimab (trade name in Europe: Hetronifly®) for the first-line treatment of EGFR-high advanced or metastatic squamous non-small cell lung cancer (sqNSCLC) at the 2025 International Summit on Frontiers and Innovations in Lung Cancer. In September 2025, the company presented 18.6-month median follow-up data from this Phase 2 dose-exploration study at the World Conference on Lung Cancer (WCLC). The newly updated analysis, at a median follow-up of 23.5 months, showed that the combination maintained consistent efficacy and safety outcomes, further confirming its durable clinical-benefit potential in EGFR-high sqNSCLC.
EGFR-High Population: A Large Yet Underserved Clinical Gap
Globally, EGFR-high is observed in approximately 40% to 89% of NSCLC patients, depending on histology and ethnicity, representing millions of new cases each year.1-3 The prevalence is even higher in sqNSCLC—approaching 90%.1,2 Importantly, EGFR-high does not equate to EGFR-sensitizing mutations, as the correlation between the two is low. 4 Classic sensitizing EGFR mutations are rare in sqNSCLC overall. 5 Consequently, most EGFR-high sqNSCLC patients lack sensitizing EGFR mutations and thus derive little benefit from EGFR-TKI (tyrosine kinase inhibitor) therapies. 5
Currently, the standard first-line regimen for advanced or metastatic sqNSCLC is PD-(L)1 inhibitor combined with chemotherapy. However, none of these pivotal studies stratified patients by EGFR expression, leaving treatment responses in the EGFR-high population largely unexplored. This subgroup still lacks biomarker-driven precision treatment options; clinical practice continues to rely on non-stratified empirical regimens, and therapeutic responses may vary widely.
Mechanistic Synergy: Dual-Target Coordination for Complementary Benefit
Cetuximab, one of the first EGFR-targeted mAbs approved for colorectal and head-and-neck squamous cell carcinomas, has not been approved for first-line lung cancer treatment. 6-9 By contrast, Henlius’ HLX07 features lower immunogenicity and higher target affinity. Fc region engineering significantly prolongs its half-life, enabling once-every-three-weeks administration that aligns well with immunotherapy dosing intervals—improving treatment convenience and supporting sustained synergistic antitumor activity. Preclinical studies have shown that HLX07 demonstrates superior bioactivity, inhibiting tumour cell growth across multiple models and displaying strong synergy with serplulimab. 10 As the first anti-PD-1 mAb approved globally for first-line extensive-stage small cell lung cancer (ES-SCLC), serplulimab now reaches nearly half the world’s population. The combination of HLX07 and serplulimab blocks EGFR signalling while activating immune responses simultaneously, showcasing substantial potential for dual-mechanism synergy.
Encouraging Clinical Signals with Manageable Safety
The HLX10HLX07-sqNSCLC-201 trial is a randomized, multicentre Phase 2 dose-exploration study consisting of four parts evaluating multiple combinations of HLX07 (different doses), serplulimab, and chemotherapy. Part III assessed the preliminary efficacy of the triple combination in treatment-naïve patients with EGFR high expression (H-score ≥ 150). Participants were randomized 1:1 to receive either 800 mg or 1000 mg of HLX07 plus serplulimab and chemotherapy every three weeks.
At the latest 23.5-month median follow-up, both dose groups achieved approximately 70% objective response rates (ORR) and > 90% disease control rates (DCR), consistent with the 18.6-month data. The median progression-free survival (PFS) was 17.4 months in the high-dose group, while the median PFS for the low-dose group was not reached; median overall survival (mOS) and median duration of response (mDOR) were not yet reached in either group. These findings indicate that the combination’s benefits are not only pronounced early but also sustained over time, further supporting its potential clinical value for EGFR-high sqNSCLC.
Most treatment-emergent adverse events (TEAEs), such as rash, were manageable and consistent with previous observations, with no new safety signals identified.
Detailed Data
As of July 31, 2025, 27 patients had been enrolled and randomized to Part III of the study: 13 in Arm A and 14 in Arm B. Patients received HLX07 at 800 mg (Arm A) or 1000 mg (Arm B) plus 300 mg serplulimab and chemotherapy every three weeks. Fifteen patients (55.6%) had metastatic sqNSCLC. The median follow-up was 23.5 months.
By blinded independent central review (BICR) assessment per RECIST v1.1, confirmed ORR was 69.2% (95% CI 38.6–90.9) in Arm A and 71.4% (95% CI 41.9–91.6) in Arm B. Disease control rates were 92.3% (95% CI 64.0–99.8) and 100% (95% CI 76.8–100.0), respectively. Median PFS was not reached in Arm A and 17.4 months (95% CI 8.1–NE) in Arm B. Median OS and mDOR were not reached in either arm as of data cutoff. All patients experienced TEAEs, with grade ≥ 3 events mainly including skin reactions and electrolyte imbalances; no new safety signals were observed compared with similar agents.
Henlius continues to advance its lung-cancer portfolio—from serplulimab, which pioneered immunotherapy in small cell lung cancer (SCLC), to a diverse pipeline including HLX43 and HLX07 targeting multiple molecular subtypes of NSCLC. The company is building a differentiated and comprehensive immuno-oncology product matrix that addresses the needs of broad patient populations. The extended follow-up results from this study further validate the feasibility of combining EGFR targeted therapy with immunotherapy and offer new insights and hope for personalized treatment in EGFR-high sqNSCLC.
About Henlius
Henlius (2696.HK) is a global biopharmaceutical company with the vision to offer high-quality, affordable and innovative biologic medicines for patients worldwide with a focus on oncology, autoimmune diseases and ophthalmic diseases. Up to date, 9 products have been approved for marketing worldwide, and 4 marketing applications have been accepted for review in China, the U.S. and the EU, respectively. Since its inception in 2010, Henlius has built an integrated biopharmaceutical platform with core capabilities of high-efficiency and innovation embedded throughout the whole product life cycle including R&D, manufacturing and commercialization. It has established global innovation centre and Shanghai-based commercial manufacturing facilities certificated by China, the EU and U.S. GMP.
Henlius has pro-actively built a diversified and high-quality product pipeline covering about 50 molecules and has continued to explore immuno-oncology combination therapies with proprietary HANSIZHUANG (anti-PD-1 mAb) as the backbone. To date, the company's launched products include HANSIZHUANG (serplulimab, trade name: Hetronifly® in Europe), the world’s first anti-PD-1 mAb for the first-line treatment of SCLC, HANQUYOU (trastuzumab, trade name: HERCESSI™ in the U.S., Zercepac® in Europe), a China-developed mAb biosimilar approved in China, Europe and U.S., HANLIKANG (rituximab), the first China-developed biosimilar, and denosumab Bildyos® and Bilprevda®. What’s more, Henlius has conducted over 30 clinical studies for 19 products, expanding its presence in major markets as well as emerging markets.
联系方式
媒体:PR@Henlius.com
投资者:IR@Henlius.com
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