Spyre Therapeutics, Inc. is a clinical-stage biotechnology company, which is engaged in creating inflammatory bowel disease (IBD) and other immune-mediated disease products by combining antibody engineering, rational therapeutic combinations and precision medicine approaches. Its pipeline includes investigational extended half-life antibodies targeting a4b7, TL1A, and IL-23. Its pipeline programs include SPY003, SPY004, SPY130, SPY230, SPY002, SPY001, and SPY120. Its advanced product candidate, SPY001, is a fully human monoclonal immunoglobulin G1 antibody designed to bind selectively to the a4b7 integrin being developed for the treatment of IBD. Its co-lead program, SPY002, has nominated two fully human mAb candidates designed to bind to tumor necrosis factor-like ligand 1A (TL1A), both of which are in preclinical development for the treatment of IBD. SPY003 is a preclinical-stage program designed to bind to Interleukin 23 (IL-23) and incorporates half-life extending modifications.