Unum Therapeutics Inc., a biopharmaceutical company, focuses on developing a pipeline of novel therapies to treat cancer patients. The company’s novel proprietary technology, known as Bolt-On Chimeric Receptor (BOXR), is designed to improve the functionality of engineered T cells by discovering and incorporating a Âbolt-on’ transgene into a patients’ engineered T cells to overcome resistance of the solid tumor microenvironment to T cell attack. Its advanced program, PLX9486, is a selective KIT D816V inhibitor that is being developed to treat patients with systemic mastocytosis and gastrointestinal stromal tumors.