IO Biotech, Inc. is a clinical-stage biopharmaceutical firm dedicated to creating immune-modulating cancer treatments. These therapies leverage its proprietary T-win technology platform. The company's primary investigational drug, IO102-IO103, is engineered to counteract immunosuppressive proteins such as Indoleamine 2,3-dehydrogenase (IDO) and programmed death-ligand (PD-L1). This candidate is progressing through Phase 2 clinical trials for melanoma and is also being evaluated in Phase 1 trials across a range of other cancers, including lung, head and neck, bladder, and melanoma. Additionally, IO Biotech is developing IO112, a distinct product candidate. IO112 comprises a single Arginase 1-derived peptide designed to specifically target T cells that identify epitopes originating from Arginase 1, aiming to treat various malignancies. Established in 2014, the company is headquartered in Copenhagen, Denmark.