重大突破！中国这款新药，中美官方都认定有突破性疗效！世界肺癌大会沸腾了

Core Viewpoint - A Chinese innovative drug, iza-bren, has received breakthrough therapy designations from both the FDA and the Chinese regulatory authority, showcasing its potential in lung cancer treatment with a remarkable objective response rate (ORR) of 100% in clinical trials [3][18]. Group 1: Clinical Data and Breakthroughs - The Phase II clinical trial of iza-bren combined with Osimertinib for EGFR-mutant non-small cell lung cancer (NSCLC) reported an ORR of 100%, the highest recorded for first-line treatments in this category [4][8]. - The trial included 154 patients, with the 2.5 mg/kg dose group showing significant efficacy, leading to the selection of this dosage for future Phase III studies [11][12]. - The median progression-free survival (PFS) rate at 12 months was 92.1%, and the overall survival (OS) rate was 94.8%, indicating strong potential for long-term benefits [10][18]. Group 2: Challenges and Solutions - The drug addresses significant challenges in lung cancer treatment, such as tumor heterogeneity and resistance, with a 100% ORR suggesting a breakthrough in overcoming these issues [9][14]. - The median tumor shrinkage was nearly 57%, indicating substantial tumor reduction, which lays a solid foundation for long-term disease control [9][10]. Group 3: Future Research and Development - The Phase III clinical trial has been initiated, focusing on the efficacy and safety of iza-bren combined with Osimertinib compared to Osimertinib alone, with primary endpoints including PFS and secondary endpoints covering OS and safety [11][12]. - The collaboration with BMS (Bristol-Myers Squibb) is aimed at leveraging their global clinical development expertise to enhance the trial's design and execution [13][20]. Group 4: Market Position and Recognition - Iza-bren has been recognized as a "First-in-class" and "New concept" drug, marking a significant advancement for Chinese innovative pharmaceuticals in the global market [20]. - The drug's breakthrough therapy designations from both the FDA and the Chinese regulatory authority are expected to expedite its development and approval processes, potentially benefiting a large patient population [18][20].