• I-Mab Biopharma (I-Mab), a China and U.S.-based clinical stage biopharmaceutical company exclusively focused on the discovery and development of potential first-in-class and best-in-class biologics in immuno-oncology and autoimmune diseases, and TRACON Pharmaceuticals (NASDAQ:TCON), a clinical stage biopharmaceutical company focused on the development and commercialization of novel targeted therapeutics for cancer, jointly announced that TRACON has dosed the first patient in a U.S. Phase 1 first-in-human clinical trial of I-Mab's proprietary CD73 antibody TJD5, also known as TJ004309, in patients with advanced solid tumors (NCT identifier number: NCT03835949). TJD5 will be dosed in the Phase 1 trial both as a single agent and in combination with TECENTRIQ® (atezolizumab), a PD-L1 antibody marketed by Roche. I-Mab entered into a research collaboration with Roche in April 2019 where Roche agreed to supply TECENTRIQ® to I-Mab for use in clinical study in combination with TJD5.