AKESO(HK:09926) Zhi Tong Cai Jing·2025-10-20 00:21Core Insights - 康方生物's HARMONi-6/AK112–306 study results were prominently presented at the ESMO 2025 and published in The Lancet, demonstrating the efficacy of Ivoris combined with chemotherapy compared to Tarelizumab combined with chemotherapy for advanced sq-NSCLC [1][2] Study Overview - HARMONi-6/AK112–306 is a randomized, controlled, multi-center Phase III clinical trial assessing Ivoris combined with chemotherapy versus Tarelizumab combined with chemotherapy as first-line treatment for advanced sq-NSCLC, with the primary endpoint being progression-free survival (PFS) evaluated by IRRC based on RECIST v1.1 [1][3] - The study enrolled 532 participants, with a balanced baseline, and 92.3% of subjects being in stage IV; the characteristics of squamous cell carcinoma were consistent with real-world patient distribution, with approximately 63% being central squamous cell carcinoma [1][3] Efficacy Results - The study achieved a significant positive result for the primary endpoint of PFS, with Ivoris showing a marked improvement over the control group, resulting in a PFS hazard ratio (HR) of 0.60 (p<0.0001) [1][2] - The median PFS for the Ivoris group was 11.14 months compared to 6.9 months for the control group, indicating an absolute improvement of 4.24 months in PFS [1][2] Subgroup Analysis - In the PD-L1 negative population (TPS ≤ 1%), the median PFS was 9.9 months versus 5.7 months, with a PFS HR of 0.55 [2] - In the PD-L1 positive population (TPS ≥ 1%), the median PFS was 12.6 months versus 8.6 months, with a PFS HR of 0.66 [2] - The PFS HR for patients with liver metastases was 0.53, while for those without liver metastases, it was 0.64; for patients with three or more baseline metastatic sites, the PFS HR was 0.46 [2] Safety Profile - The overall safety profile of the Ivoris group was favorable, with no new safety signals identified; the incidence of treatment-related serious adverse events and grade 3 or higher bleeding events was similar to the control group [2] Regulatory Status - The new indication application for Ivoris combined with chemotherapy for first-line treatment of sq-NSCLC has been accepted by the CDE and is currently under review, potentially offering hope to more patients [2]