Core Viewpoint - The company has received FDA fast track designation for its bispecific antibody, ViliXinTM (Opa-Tisumi Monoclonal Antibody, LBL-024), for the treatment of pulmonary neuroendocrine carcinoma, indicating significant potential in addressing unmet medical needs in oncology [1][2] Group 1: FDA Designation and Drug Development - ViliXinTM has been granted fast track designation by the FDA, which accelerates the review process for drugs that treat serious conditions or fill unmet medical needs [1] - The fast track designation allows for more frequent regulatory interactions and the ability to submit a rolling new drug application [1] Group 2: Clinical Trial Results - In clinical trials in China, ViliXinTM has shown encouraging efficacy signals and good safety profiles as both a monotherapy and in combination with chemotherapy for patients with advanced pulmonary neuroendocrine carcinoma [2] - The company received approval from the National Medical Products Administration (NMPA) in April 2024 to conduct a single-arm registration clinical trial and was granted breakthrough therapy designation (BTD) in October 2024 [2] Group 3: Broader Implications and Potential - ViliXinTM targets both PD-L1 and 4-1BB, showing potential as the first approved drug for advanced pulmonary neuroendocrine carcinoma and demonstrating first-in-class or best-in-class clinical activity in various indications [1] - The drug has also shown promising clinical signals in multiple cancers with high unmet medical needs, including small cell lung cancer, cholangiocarcinoma, ovarian cancer, non-small cell lung cancer, esophageal squamous cell carcinoma, hepatocellular carcinoma, gastric cancer, triple-negative breast cancer, and melanoma [2]

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。 Nanjing Leads Biolabs Co., Ltd. 南 京 維 立志博生物科技股份有限公司 （於 中 華 人 民 共 和 國 成 立 的 股 份 有 限 公 司） （股 份 代 號：9887） 快速通道資格認定是FDA批准加速審查治療嚴重或危及生命病情或解決未滿 足 醫 療 需 求 的 藥 物 以 助 加 快 藥 物 開 發 的 方 法。其 提 供 若 干 重 要 程 序 性 激 勵 措 施，包 括 獲 得FDA更 頻 繁 的 監 管 互 動 與 指 導，以 及 有 權 滾 動 提 交 新 藥 申 請 以 獲 得 監 管 批 准。 關 於 維利信TM（奧 帕 替 蘇 米 單 抗，LBL-024） 維利信TM是一種同時靶向PD-L1與4-1BB的 雙 特 異 性 抗 體，為 針 對 肺 外 神 經 內 分泌癌的全球首款達到註冊臨床階段的靶 ...