Company Updates - The company presented significant data at the ESMO conference on October 17, including the approval of sac-TMT for lung cancer in China on October 12, and the approval of trastuzumab deruxtecan on October 17 [1][2] - Sac-TMT demonstrated strong positive overall survival (OS) benefits in the second-line EGFRm non-small cell lung cancer (NSCLC) compared to chemotherapy, marking it as the first successful ADC drug in this indication globally [1] - In the domestic Phase III trial OptiTROP-Lung04, sac-TMT showed statistically and clinically significant improvements in progression-free survival (PFS) and OS, with a median follow-up of 18.9 months, PFS of 8.3 months vs. 4.3 months (HR=0.49), and OS not reached vs. 17.4 months (HR=0.6, p=0.0006) [1] Breast Cancer Insights - In the domestic Phase III trial OptiTROP-Breast02, sac-TMT also showed strong positive OS benefits in HR+ HER2- breast cancer, with PFS of 8.3 months vs. 4.1 months (HR=0.35), and OS not reached but with HR=0.33, indicating significant dual benefits [2] - The HER2 ADC trastuzumab deruxtecan showed clear benefits in a head-to-head trial against Roche's T-DM1, with PFS of 11.1 months vs. 4.4 months (HR=0.39) and OS HR=0.62, leading to its approval in China on October 17 [2] Financial Forecast and Valuation - The company maintains its net profit forecasts for 2025 and 2026 at losses of 672 million yuan and 174 million yuan, respectively [2] - Based on a DCF model, the company maintains an outperform rating and a target price of 550 HKD, indicating a 20.0% upside potential from the current stock price [2]

Core Viewpoint - The breakthrough in overcoming EGFR-TKI resistance in non-small cell lung cancer (NSCLC) is a common goal for new therapies, with the recent clinical data from Kolonbo Tai's TROP2 ADC sac-TMT showing significant benefits in both progression-free survival (PFS) and overall survival (OS) for EGFR-mutant NSCLC patients in the second-line treatment setting [1][3]. Group 1: Clinical Study Results - The III phase clinical study (OptiTROP-Lung04) evaluated sac-TMT against platinum-based doublet chemotherapy in patients with locally advanced or metastatic EGFR-mutant NSCLC, enrolling 376 patients with a median follow-up of 18.9 months [3]. - The study reported a median PFS of 8.3 months for sac-TMT compared to 4.3 months for chemotherapy, representing a 51% reduction in the risk of disease progression or death [3]. - The OS for sac-TMT was not reached (NR) versus 17.4 months for chemotherapy, indicating a 40% reduction in the risk of death [3]. - The objective response rate (ORR) was 60.6% for sac-TMT compared to 43.1% for chemotherapy, with a median duration of response (mDoR) of 8.3 months versus 4.2 months [3]. Group 2: Safety Profile - The most common treatment-related adverse events (TRAEs) for sac-TMT and platinum-based chemotherapy were hematologic toxicities, with no reported cases of interstitial lung disease (ILD) or pneumonia in the sac-TMT group, indicating a manageable safety profile [4]. Group 3: Future Directions - The results from the study suggest that sac-TMT has achieved statistically significant and clinically meaningful improvements in both OS and PFS compared to chemotherapy, addressing the challenge of obtaining OS advantages after EGFR-TKI resistance [5]. - Kolonbo Tai plans to expand the use of sac-TMT into first-line treatment, with a new III phase clinical study (SKB264-III-15) initiated to evaluate sac-TMT in combination with osimertinib against osimertinib monotherapy in patients with EGFR-mutant NSCLC [7].

Core Insights - The article highlights the significant advancements in the ADC (Antibody-Drug Conjugate) sector, particularly focusing on the achievements of Kelun-Botai, which has successfully developed innovative drugs that are gaining international recognition [1][2][3]. Group 1: ADC Developments - Kelun-Botai's TROP2 ADC, Lukan-Satuzumab, has shown promising results in clinical trials, particularly for second-line treatment of EGFR-mutant non-small cell lung cancer (NSCLC), demonstrating significant improvements in progression-free survival (PFS) and overall survival (OS) compared to standard chemotherapy [2][3]. - The ESMO conference showcased multiple ADC products from Kelun-Botai, including TROP2, HER2, and CLDN18.2 ADCs, indicating the company's strong research and development capabilities [1][2]. - The company aims to fill critical treatment gaps in oncology, with Lukan-Satuzumab potentially becoming a cornerstone drug for both breast cancer and lung cancer [3][4]. Group 2: Clinical Trial Highlights - The OptiTROP-Lung04 study presented at ESMO demonstrated that Lukan-Satuzumab significantly improves PFS and OS for patients with EGFR-mutant NSCLC who have failed prior treatments [2][3]. - Another study for HER2 ADC, A166, showed significant improvements in PFS compared to T-DM1 for HER2-positive breast cancer, supporting its potential as a leading treatment option [4]. - The introduction of SKB315, targeting CLDN18.2 for gastric cancer, marks a significant expansion into a high-incidence cancer type, with initial clinical data showing promising efficacy [5]. Group 3: Strategic Positioning - Kelun-Botai's strategy focuses on leveraging its proprietary OptiDC™ technology platform to optimize drug design and enhance therapeutic efficacy, positioning itself as a leader in the ADC market [8][9]. - The company is committed to developing large indications and aims to create significant products within major cancer types, ensuring a comprehensive treatment approach from second-line to first-line therapies [9][10]. - Kelun-Botai is also exploring next-generation DC technologies, including dual-antibody ADCs and other innovative mechanisms, to address challenges such as tumor resistance and heterogeneity [12][13]. Group 4: Future Outlook - The company is expanding its pipeline to include diverse therapeutic areas beyond oncology, indicating a strategic move towards a more comprehensive biopharma portfolio [14][15]. - Kelun-Botai is enhancing its global presence through partnerships and clinical trials, aiming to establish itself as a competitive player in the international biopharma market [17][18]. - The ongoing development of innovative products and a sustainable business model positions Kelun-Botai for long-term success and growth in the global pharmaceutical landscape [18].

Core Viewpoint - Kolon Biotech Inc. (06990) experienced a significant increase in stock price, rising by 5.37% to HKD 483, with a trading volume of HKD 1.5939 million, following the announcement of multiple clinical research results at the 2025 European Society for Medical Oncology (ESMO) conference held in Berlin from October 17 to 21 [1]. Group 1 - Kolon Biotech announced the presentation of several clinical research results at the ESMO conference [1]. - The research included data on targeted antibody-drug conjugates (ADCs) such as sac-TMT (佳泰莱), A166 (舒泰莱), and SKB315 [1]. - The focus of the studies was on TROP2, HER2, and Claudin18.2 [1].

消息面上，科伦博泰生物-B发布公告，本公司已在于10月17日至21日在德国柏林举行的2025年欧洲肿瘤 内科学会(ESMO)大会上公布多项临床研究成果，涵盖靶向人滋养细胞表面抗塬2(TROP2)抗体偶联药物 (ADC)芦康沙妥珠单抗(sac-TMT)(佳泰莱)、靶向人类表皮生长因子受体2(HER2)ADC博度曲妥珠单抗(亦 称A166)(舒泰莱)以及Claudin18.2 (CLDN18.2) ADC SKB315的相关数据。 智通财经APP获悉，科伦博泰生物-B(06990)高开逾5%，截至发稿，涨5.37%，报483港元，成交额 159.39万港元。 ...

Core Viewpoint - The company announced the presentation of multiple clinical research results at the 2025 European Society for Medical Oncology (ESMO) conference held in Berlin from October 17 to 21, focusing on various antibody-drug conjugates (ADCs) targeting specific cancer markers [1] Group 1: Clinical Research Results - The company presented data on the TROP2-targeted ADC sac-TMT (佳泰莱) [1] - The company showcased results for the HER2-targeted ADC A166 (舒泰莱) [1] - The company also reported findings related to the Claudin18.2-targeted ADC SKB315 [1]

Core Viewpoint - The company announced the presentation of multiple clinical research results at the 2025 European Society for Medical Oncology (ESMO) conference held in Berlin from October 17 to 21 [1] Group 1: Clinical Research Results - The company presented data on the targeted antibody-drug conjugate (ADC) sac-TMT (佳泰莱®), which targets trophoblast cell surface antigen 2 (TROP2) [1] - The company also showcased results for the HER2-targeted ADC A166 (舒泰莱®) [1] - Additionally, data related to the Claudin18.2 (CLDN18.2) ADC SKB315 was presented [1]

Core Viewpoint - The company announced the presentation of multiple clinical research results at the 2025 European Society for Medical Oncology (ESMO) conference held in Berlin from October 17 to 21 [1] Group 1: Clinical Research Results - The clinical studies include data on the antibody-drug conjugate (ADC) targeting Trophoblast Cell Surface Antigen 2 (TROP2), sac-TMT (佳泰莱®) [1] - The research also covers the ADC targeting Human Epidermal Growth Factor Receptor 2 (HER2), known as A166 (舒泰莱®) [1] - Additionally, data on Claudin18.2 (CLDN18.2) ADC SKB315 is presented [1]

香港交易及結算所有限公司及香港聯合交易所有限公司對本公告的內 容 概 不 負 責，對 其 準 確 性 或 完 整 性 亦 不 發 表 任 何 聲 明，並 明 確 表 示，概 不對因本公告全部或任何部份內容而產生或因倚賴該等內容而引致的 任 何 損 失 承 擔 任 何 責 任。 OptiTROP-Lung04 共 有376名患者被隨機(1:1)分配接受蘆康沙妥珠單抗(sac-TMT)治療或化 療。於 數 據 截 止 時 間（2025年7月6日），中 位 隨 訪 時 間 為18.9個 月。蘆康沙 妥珠單抗(sac-TMT)組的中位無進展生存期(PFS)為8.3個 月，化 療 組 為4.3個 月。蘆康沙妥珠單抗(sac-TMT)較化療顯著改善了PFS，疾 病 進 展 或 死 亡 風 險降低51%（風 險 比(HR) 0.49；95%置信區間(CI): 0.39-0.62；P<0.0001）。在 預 Sichuan Kelun-Biotech Biopharmaceutical Co., Ltd. 四川科倫博泰生物醫藥股份有限公司 （於 中 華 人 民 共 和 國 註 冊 成 立 的 股 份 有 限 公 司） （股 ...

Core Insights - Keren Biotechnology's antibody-drug conjugate (ADC) A166 (also known as "Shutailai") has received approval from the National Medical Products Administration (NMPA) for use in adult patients with HER2-positive breast cancer who have previously received one or more anti-HER2 therapies [1] - The approval is based on a Phase III clinical trial (KL166-III-06) that demonstrated significant improvement in progression-free survival (PFS) compared to T-DM1, with a trend towards improved overall survival (OS) [1] Company Developments - Keren Biotechnology has initiated a Phase II clinical study for A166 targeting HER2-positive breast cancer patients who have previously received topoisomerase inhibitor ADC therapy [2] - A166 is the second ADC approved by Keren Biotechnology, indicating a growing portfolio in the ADC space [1] Industry Context - The HER2-targeted ADC market is currently dominated by international pharmaceutical companies, with Roche's T-DM1 and Daiichi Sankyo/AstraZeneca's DS-8201 leading the market [2] - DS-8201 was first approved in China in February 2023 and has multiple indications, including breast cancer, gastric cancer, and lung cancer, and is included in the national medical insurance directory [2] - Other domestic ADCs, such as Rongchang Biotech's trastuzumab deruxtecan, have also gained approval for various HER2-related indications, contributing to a competitive landscape [3] - The timeline for A166's inclusion in the national medical insurance directory may be challenging, as the preliminary review for the 2025 adjustments has already been completed [3]