TRACON Pharmaceuticals, Inc., a clinical stage biopharmaceutical company, focuses on the development and commercialization of therapeutics for cancer and age-related macular degeneration and fibrotic diseases in the United States. Its lead clinical stage product 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 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 to treat solid tumors and lymphomas, and Phase I trial to treat lung cancer; TRC253, a small molecule, which is in 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 with 3D Medicines Co., Ltd. and Jiangsu Alphamab Biopharmaceuticals Co., Ltd. for the development of envafolimab; I-Mab Biopharma for the development of CD73 antibody TJ004309; Janssen Pharmaceutica N.V. for the development of TRC253; Case Western Reserve University for the development of TRC102; and cooperative research and development agreement with National Cancer Institute. The company was formerly known as Lexington Pharmaceuticals, Inc. and changed its name to TRACON Pharmaceuticals, Inc. in March 2005. TRACON Pharmaceuticals, Inc. was incorporated in 2004 and is headquartered in San Diego, California.