Aptose Biosciences Inc., a clinical-stage biotechnology company, discovers and develops personalized therapies addressing unmet medical needs in oncology primarily in the United States. The company’s clinical-stage oral kinase inhibitors include tuspetinib (HM43239), a once-daily oral kinase inhibitor that has completed Phase 1/2 clinical trial targeting a select group of kinases operative in myeloid malignancies, such as acute myeloid leukemia and the higher risk myelodysplastic syndromes; and luxeptinib (CG-806), a potent oral small molecule, which is in Phase 1 a/b clinical trial in patients with relapsed or refractory B cell malignancies, including chronic lymphocytic leukemia, small lymphocytic lymphoma, and certain non-Hodgkin’s lymphomas, as well as relapsed or refractory acute myeloid leukemia. It has license agreements with CrystalGenomics Invites Co. Ltd.