Core Viewpoint - The company, Junshi Biosciences, has announced the completion of the first patient dosing in a Phase 1 clinical trial for its self-developed biosimilar HLX13, targeting unresectable hepatocellular carcinoma (HCC) patients in China [1] Group 1: Clinical Trial Details - The study is an international, multicenter, randomized, double-blind, parallel-controlled Phase 1 clinical trial [1] - The trial aims to evaluate the pharmacokinetic (PK) characteristics, safety, efficacy, and immunogenicity similarities between HLX13 and its reference drug YERVOY® when combined with OPDIVO® in previously untreated advanced HCC patients [1] - Eligible participants will be randomly assigned in a 1:1 ratio to receive either HLX13 or YERVOY® combined with OPDIVO® for the first four cycles, followed by OPDIVO® monotherapy for maintenance treatment every four weeks [1] Group 2: Study Endpoints - The primary endpoint includes the area under the concentration-time curve (AUC0-21d) from pre-dosing to 21 days post-first dosing and the steady-state AUC during the dosing interval after the fourth administration [1] - Secondary endpoints encompass other PK parameters, efficacy assessments, safety, and immunogenicity evaluations [1]

Core Viewpoint - The company, Junshi Biosciences, has announced the completion of the first patient dosing in a Phase 1 clinical trial for its self-developed biosimilar HLX13, targeting unresectable hepatocellular carcinoma (HCC) patients in China [1] Group 1: Clinical Trial Details - The study is an international, multicenter, randomized, double-blind, parallel-controlled Phase 1 clinical trial [1] - The trial aims to evaluate the pharmacokinetic (PK) characteristics, safety, efficacy, and immunogenicity similarities between HLX13 and its reference drug YERVOY® when combined with OPDIVO® in previously untreated advanced HCC patients [1] - Eligible participants will be randomly assigned in a 1:1 ratio to receive either HLX13 or YERVOY® combined with OPDIVO® for the first four cycles, followed by OPDIVO® monotherapy for maintenance treatment every four weeks [1] Group 2: Study Endpoints - The primary endpoint includes the area under the concentration-time curve (AUC0-21d) from pre-dosing to 21 days post-first dosing and the steady-state AUC during the dosing interval after the fourth administration [1] - Secondary endpoints encompass other PK parameters, efficacy assessments, safety, and immunogenicity evaluations [1]

Core Insights - Company announced the completion of the first patient dosing in a Phase 1 clinical trial for HLX13, a biosimilar of ipilimumab, for the treatment of unresectable hepatocellular carcinoma (HCC) in China [1] - The trial is a multicenter, randomized, double-blind, parallel-controlled study aimed at evaluating the pharmacokinetics, safety, efficacy, and immunogenicity of HLX13 compared to the original drug YERVOY® in previously untreated advanced HCC patients [1][2] - HLX13 is also being developed for multiple indications including melanoma, renal cell carcinoma, colorectal cancer, non-small cell lung cancer, malignant pleural mesothelioma, and esophageal squamous cell carcinoma [2] - The global sales of ipilimumab are projected to be approximately $2.873 billion in 2024 [3] Group 1 - HLX13 is a biosimilar of ipilimumab, designed to enhance immune response by blocking CTLA-4, thereby targeting tumors [2] - The Phase 1 trial involves a 1:1 random allocation of participants to receive either HLX13 or YERVOY® combined with OPDIVO® treatment [1] - The primary endpoint of the trial is the area under the concentration-time curve (AUC) from dosing to 21 days post-administration [1] Group 2 - The clinical trial application for HLX13 in HCC was approved by the National Medical Products Administration in June 2023 [2] - The company has entered into a licensing agreement with Sandoz AG for the commercialization of HLX13 in the U.S. and select European regions, Japan, Australia, and Canada [2] - The sales figure for ipilimumab indicates a significant market potential for HLX13 as a biosimilar in the oncology sector [3]

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，並明確表示概不就因本公告全部或任何部分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。 Shanghai Henlius Biotech, Inc. 上海復宏漢霖生物技術股份有限公司 （於中華人民共和國註冊成立的股份有限公司） 本公告由上海復宏漢霖生物技術股份有限公司（「本公司」）自願作出，以告知 本公司股東及潛在投資者本公司最新業務更新。 本公司董事會（「董事會」）欣然宣佈，近日，本公司自主研發的伊匹木單抗生 物類似藥HLX13（重組抗CTLA-4全人單克隆抗體注射液）（「HLX13」）一綫治 療不可切除的晚期肝細胞癌(HCC)患者的1/3期臨床研究於中國境內完成首例 患者給藥。 B. 臨床試驗設計及目的 本研究為一項多中心、隨機、雙盲、平行對照1/3期臨床研究，旨在評估 HLX13與其原研藥YERVOY® （美國市售和歐盟市售）在既往未經治療的不可 切除的晚期肝細胞癌(HCC)患者中的藥代動力學(PK)特徵、有效性、安全性 和免疫原性相似性。合格的受試者將按2:1:1的比例隨機分配至三組 ...