These forward-looking statements are made as of the date of this press release and we do not intend, and do not assume any obligation, to update these forward-looking statements, except as required by law. We cannot assure you that such statements will prove to be accurate as actual results and future events could differ materially from those anticipated in such statements. Investors are cautioned that forward-looking statements are not guarantees of future performance and accordingly investors are cautione ...

SAN DIEGO and TORONTO, June 30, 2025 (GLOBE NEWSWIRE) -- Aptose Biosciences Inc. ("Aptose" or the "Company") (TSX: APS; 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), announced that it has entered into an Interest Deferral Agreement (the “Agreement”) with Hanmi Pharmaceutical Co., Ltd. (“Hanmi”), whereby Hanmi has agreed to further defer the interest payment due un ...

SAN DIEGO and TORONTO, June 20, 2025 (GLOBE NEWSWIRE) -- Aptose Biosciences Inc. ("Aptose" or the "Company") (TSX: APS; 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 that it has entered into a new loan agreement (the “Loan Agreement”) with Hanmi Pharmaceutical Co. Ltd. (“Hanmi”). The Loan Agreement is an uncommitted facility for up to US$8.5million ...

Core Insights - Aptose Biosciences Inc. presented data from its Phase 1/2 TUSCANY trial for newly diagnosed AML patients treated with tuspetinib in combination with venetoclax and azacitidine at the EHA 2025 Congress [1][3] Group 1: Study Overview - The TUS+VEN+AZA triplet is being developed as a mutation-agnostic frontline therapy for newly diagnosed AML patients who cannot receive induction chemotherapy [2][8] - The TUSCANY trial is designed to test various doses of tuspetinib in combination with standard dosing of azacitidine and venetoclax [9] Group 2: Key Findings - The addition of tuspetinib to standard care creates a well-tolerated and mutation-agnostic frontline therapy for newly diagnosed AML [5] - Ten AML patients have been treated with the TUS+VEN+AZA combination, with complete remissions and minimal residual disease negativity observed across diverse mutations [6][7] - At the 40 mg dose level, three out of four patients achieved complete remissions and were MRD-negative, while at the 80 mg dose level, all three patients achieved composite complete remissions [6] Group 3: Safety and Efficacy - No dose-limiting toxicities (DLTs) have been observed to date, and all ten subjects treated remain alive [6][7] - TUS demonstrated activity across diverse genetic populations, including those with adverse TP53 mutations [6][8] - The triplet therapy continues to be well tolerated, with no treatment-related deaths or significant adverse events reported [6][7]

TUS+VEN+AZA triplet achieves complete remissions (CRs) and minimal residual disease (MRD)-negativity with favorable safety in newly diagnosed AML patientsCompleted 40 mg and 80 mg TUS dose cohorts; no prolonged myelosuppression or dose-limiting toxicitiesNo dose reductions required to the standard-of-care therapy with 40 mg and 80 mg TUS dose cohortsCSRC endorsed escalation to 120 mg TUS dosingFirst patient dosed with 120 mg TUS triplet and enrollment continues SAN DIEGO and TORONTO, May 20, 2025 (GLOBE NE ...

Highlights Progress in TUSCANY Clinical Trial of Tuspetinib in AML Triple Frontline TherapySAN DIEGO and TORONTO, May 08, 2025 (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, 2025, and provided a corporate upda ...

Aptose is developing TUS+VEN+AZA as a one-of-a-kind safe and mutation agnostic frontline triple drug therapy for newly diagnosed AML patients First two dose cohorts of TUS+VEN+AZA triplet demonstrate safety, complete remissions, and MRD negativity across patients with diverse mutations, including TP53-mutated/CK AML and FLT3-wildtype AML patients SAN DIEGO and TORONTO, May 05, 2025 (GLOBE NEWSWIRE) -- Aptose Biosciences Inc. (“Aptose” or the “Company”) (TSX: APS; OTC: APTOF), a clinical-stage precision onco ...