NewslettersPulmonary Cell News Instil Bio Announces IND Clearance of First CoStAR-TIL program, ITIL-306, Designed to Enhance Activity in the Tumor Microenvironment By Bob - June 2, 2022 0 Instil Bio, Inc. announced Investigational New Drug (IND) clearance by the US FDA of ITIL-306, Instil’s first genetically-engineered Costimulatory Antigen Receptor TIL (CoStAR-TIL) therapy. [Instil Bio, Inc.] Press Release