New Phase I Immunological Data Presented at SITC 2025 Support TG4050’s Potential Role in Preventing Cancer Relapse

Core Insights - TG4050 demonstrates the ability to induce neoantigen-specific cytotoxic CD8+ T cell responses, which can target and eliminate tumor cells, potentially reducing the risk of cancer relapse [1][3][4] Company Overview - Transgene is a biotech company focused on developing virus-based immunotherapies for cancer treatment, with TG4050 being its lead asset [9][12] - TG4050 is an individualized therapeutic vaccine based on the myvac® platform, designed to stimulate the immune system to recognize and destroy tumor cells [10][12] Clinical Development - TG4050 is currently being evaluated in a Phase I/II clinical trial for patients with HPV-negative head and neck cancers, with the first immunogenicity data from the Phase II part expected in the second half of 2026 [14] - The trial includes a randomized study design, assessing the treatment benefits of TG4050 in patients at risk of relapse [14] Immunological Data - New immunological data presented at the SITC Annual Meeting confirm TG4050's mechanism of action and its potential for sustained prevention of cancer relapses [4][5] - CD8+ T cells induced by TG4050 exhibit an effector phenotype and persist for up to two years post-treatment, indicating long-term immune response capabilities [8][5] Collaboration and Technology - Transgene collaborates with NEC Corporation, leveraging NEC's AI-driven platform to enhance the development of individualized neoantigen therapeutic vaccines [5][12] - NEC's Neoantigen Prediction System utilizes advanced AI to identify and select the most immunogenic sequences for the vaccine [15][12]