tracon pharmaceuticals, inc., a clinical stage biopharmaceutical company, focuses on the development and commercialization of therapeutics for cancer and wet age-related macular degeneration (amd). its lead clinical stage products include envafolimab (kn035), an investigational pd-l1 single-domain antibody for the treatment of soft tissue sarcoma. the company's clinical stage products also include de-122, which is in randomized phase iia study for the treatment of wet amd; trc102, which is a small molecule that is in phase ii clinical trial for the treatment of mesothelioma, phase i clinical trial to treat solid tumors, phase i/ii to treat solid tumors and lymphomas, and phase i trial to treat lung cancer; trc253, a small molecule, which is in a phase ii clinical trial for the treatment of metastatic castration-resistant prostate cancer; and tj004309, a cd73 antibody that is in phase i clinical development for the treatment of solid tumors. it has collaboration and license agreements w