Gossamer Bio, Inc. is a clinical-stage biopharmaceutical company focused on discovering, acquiring, developing and commercializing therapeutics in the disease areas of immunology, inflammation and oncology. The Company has six programs: three clinical-stage product candidates and three preclinical programs. Its pipeline includes GB001, GB002, GB004, GB1275, Autoimmune program and Oncology program. GB001 is an oral antagonist of prostaglandin D2 receptor 2, or DP2, is being developed for the treatment of moderate-to-severe eosinophilic asthma and other allergic conditions. GB002 is an orally inhaled, small molecule, selective platelet-derived growth factor, or PDGF, receptor kinase inhibitor is being developed for the treatment of pulmonary arterial hypertension. GB004 is being developed for Inflammatory Bowel Disease (IBD). GB1275 is a CD11b agonist.