Core Insights - Adagene Inc. and Third Arc Bio, Inc. have entered into a licensing agreement for the use of Adagene's SAFEbody technology platform to develop masked CD3 T cell engagers targeting unique tumor-associated antigens [1][2] - Adagene will receive an upfront payment of $5 million and potential milestone payments totaling up to $840 million, along with royalties on end-user sales [1] - Adagene retains a no-cost option to develop and commercialize the candidate molecules in Greater China, Singapore, and South Korea [1] Company Overview: Adagene - Adagene Inc. is a clinical-stage biotechnology company focused on developing novel antibody-based cancer immunotherapies using computational biology and artificial intelligence [3] - The company has established strategic collaborations leveraging its SAFEbody precision masking technology [3][4] - Adagene's lead clinical program, ADG126 (muzastotug), is currently in Phase 1b/2 and Phase 2 studies, targeting CTLA-4 in regulatory T cells within the tumor microenvironment [5] Technology Insights - The SAFEbody technology is designed to enhance safety and tolerability of antibody therapeutics by activating antibodies specifically in the tumor microenvironment, minimizing off-target toxicity [4] - Adagene's Dynamic Precision Library (DPL) platform includes NEObody™, SAFEbody, and POWERbody™ technologies, contributing to a differentiated pipeline of immunotherapy programs [4] Company Overview: Third Arc Bio - Third Arc Bio is a clinical-stage biotech company developing multifunctional antibodies aimed at precisely activating or inhibiting T cells [7] - The lead program, ARC101, is a bispecific T cell engager currently in Phase 1 trials for solid tumors expressing CLDN6 [8] - Third Arc Bio's platforms include the ARCStim Platform for solid tumors and the ARCTag Platform for precision immune regulation [7]