Aptose Biosciences Inc.·Healthcare

SAN DIEGO and TORONTO, May 13, 2026 (GLOBE NEWSWIRE) -- Aptose Biosciences Inc. (“Aptose” or the “Company”) (TSX: APS and OTC: APTOF), a clinical-stage precision oncology company developing a tuspetinib (TUS)-based triple drug frontline therapy to treat patients with newly diagnosed acute myeloid leukemia (AML), today announced financial results for the first quarter ended March 31, 2026, and provided a corporate update. “Our TUSCANY clinical trial of tuspetinib in combination with venetoclax (VEN) and azacitidine (AZA) for frontline treatment of newly diagnosed acute myeloid leukemia (AML) continues to deliver robust safety and response data, and we're pleased that an update of our TUS+VEN+AZA triplet clinical data has been selected for an oral presentation at the upcoming EHA2026 Congress in June,” said William G.

Aptose Biosciences Inc. (TSE: APS - Get Free Report) (NASDAQ: APTO)'s share price passed above its 50 day moving average during trading on Monday. The stock has a 50 day moving average of C$2.21 and traded as high as C$2.25. Aptose Biosciences shares last traded at C$2.25, with a volume of 3,066 shares changing hands. Aptose
Aptose Biosciences Inc., a clinical-stage biotechnology company, discovers and develops personalized therapies addressing unmet medical needs in oncology primarily in the United States. Its clinical programs include APTO-253, which is in Phase 1a/b clinical trial for the treatment of patients with relapsed or refractory blood cancers, including acute myeloid leukemia (AML) and high-risk myelodysplastic syndrome (HR MDS); and HM43239 that is in Phase 1/2 clinical trial to treat patients with relapsed or refractory AML. The company also develops luxeptinib, which is in Phase 1a/b clinical trial for treating patients with relapsed or refractory B-cell malignancies, including chronic lymphocytic leukemia, small lymphocytic lymphoma, and various non-Hodgkin's lymphomas, as well as AML and HR MDS; and APL-581, a dual bromodomain and extra-terminal domain motif protein and kinase inhibitor program. It has agreements with CrystalGenomics, Inc. and OHM Oncology. The company was formerly known as Lorus Therapeutics Inc. and changed its name to Aptose Biosciences Inc. in August 2014. Aptose Biosciences Inc. was incorporated in 1986 and is headquartered in Toronto, Canada.