Aprea Therapeutics, Inc., a clinical-stage biopharmaceutical company, focuses on developing and commercializing novel synthetic lethality-based cancer therapeutics that targets DNA damage response pathways. Its lead product candidates are APR-1051, an orally bioavailable small-molecule inhibitor of WEE1 kinase that is in Phase 1 clinical trial for the treatment of patients with advanced solid tumors with biomarkers and ATRN-119, an ATR inhibitor, which is in Phase 1/2a clinical trial for solid tumor indications. The company is headquartered in Doylestown, Pennsylvania.