A Study to Assess Safety, Tolerability and Preliminary Efficacy of Bexmarilimab in Combination With Standard of Care in Patients With Hematological Malignancies

Summary

This is a study to assess the safety of increasing dose levels of bexmarilimab when combined with standard of care (SoC) in patients with myelodysplastic syndrome (MDS) or chronic myelomonocytic leukemia (CMML) or acute myeloid leukemia (AML); Phase 1 aims to identify the recommended phase 2 dose (RP2D) of bexmarilimab based on safety, tolerability and pharmacological activity; Phase 2 will investigate the preliminary efficacy of the combination treatment in selected indications from Phase 1.

Timeline

Start

2022-06-02

Primary completion

2027-03

Completion

2027-03

Outcome

Results reported · no primary-endpoint met/missed verdict (typical of a dose-finding / safety study)

release “Topline read-out from the Phase II BEXMAB trial confirms earlier positive findings in both frontline and relapsed/refractory higher-risk myelodysplastic syndrome (HR MDS) patients” faron.com ↗

Publications

• Kontro M, Stein AS, Pyorala M, Rimpilainen J, Siitonen T, Ylitalo A, Fjallskog ML, Jalkanen J, Aakko S, Pawlitzky I, Hollmen M, Daver N. Bexmarilimab plus azacitidine for high-risk myelodysplastic syndrome and relapsed or refractory acute myeloid leukaemia: results from the dose-escalation part of a multicentre, single-arm, phase 1/2 trial. Lancet Haematol. 2025 Jul;12(7):e516-e528. doi: 10.1016/S2352-3026(25)00103-6. Epub 2025 May 28.
• Aakko S, Ylitalo A, Kuusanmaki H, Rannikko JH, Bjorkman M, Mandelin J, Heckman CA, Kontro M, Hollmen M. CLEVER-1 targeting antibody, bexmarilimab, supports HLA-DR expression and alters ex vivo responsiveness to azacitidine and venetoclax in myeloid malignancies. Sci Rep. 2025 May 14;15(1):16775. doi: 10.1038/s41598-025-01675-y.

Drugs

Indications