Business
Mipletamig Delivers Compelling 86% Clinical Benefit Rate and No CRS as Evaluable AML Patient Data increases by Nearly 50%
Frontline patient outcomes are making the case for mipletamig to enhance standard-of-care therapy alongside venetoclax + azacitidine SEATTLE, WA / ACCESS Newswire / March 10, 2026 / Aptevo Therapeutics Inc. (Nasdaq:APVO), a clinical-stage biotechnology ...
About this update from Aptevo Therapeutics Inc.
[{"type":"text","content":"Frontline patient outcomes are making the case for mipletamig to enhance standard-of-care therapy alongside venetoclax + azacitidine","length":132,"tagName":"p"},{"type":"text","content":"SEATTLE, WA / ACCESS Newswire / March 10, 2026 / Aptevo Therapeutics Inc. (Nasdaq:APVO), a clinical-stage biotechnology company developing novel immune-oncology therapeutics based on its proprietary ADAPTIR™ and ADAPTIR-FLEX™ platform technologies, today announced new interim data for mipletamig in combination with venetoclax and azacitidine in newly diagnosed acute myeloid leukemia (AML) patients who are either elderly or unfit for intensive chemotherapy. In data from two trials, the combination has demonstrated robust clinical activity, delivering an 86% clinical benefit rate (CR/CRi/PR*)with zero patients experiencing the common symptom of cytokine release syndrome (CRS). These data support an emerging efficacy profile coupled with differentiated patient safety and tolerability that is additive to the current AML standard-of-care therapy.","length":853,"tagName":"p"},{"type":"text","content":""The emerging mipletamig data in frontline AML are highly encouraging and highlight the differentiated profile we believe is needed to advance treatment in frontline AML," said Dirk Huebner, M.D., Chief Medical Officer of Aptevo Therapeutics. "In this study we are observing strong remission rates in a growing number of evaluable patients together with a consistently favorable safety and tolerability profile, including the absence of cytokine release syndrome. Achieving meaningful clinical activity while maintaining this level of safety and tolerability is essential in the frontline AML setting, where therapies must be compatible with established regimens. These results reinforce our belief that mipletamig can be successfully combined with venetoclax and azacitidine, with the potential to enhance outcomes for older and/or unfit AML patients who continue to face poor prognosis and limited treatment options."","length":939,"tagName":"p"},{"type":"text","content":"Huebner continued, "Importantly, four of the patients treated to date have proceeded to allogeneic stem cell transplant, which represents the best possible outcome in AML treatment and is rarely achieved in the older or unfit frontline patient population."","length":2...