ArticleCancer immunology, immunotherapy : CII2026
A phase I, single-arm, open-label, dose-escalation, multicenter study of SAR445419, an off-the-shelf, ex vivo expanded allogeneic natural killer cell product, in participants with relapsed or refractory acute myeloid leukemia.
Article in Cancer immunology, immunotherapy : CII, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05712278 (A Phase I, Single-arm, Open Label, Dose Escalation, Multicenter Study of Off-the-shelf Natural Killer), which is not on this map. Not yet cited in PubMed.
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A Phase I, Single-arm, Open Label, Dose Escalation, Multicenter Study of Off-the-shelf Natural Killer (NK) Cells (SAR445419) in Participants With Relapsed or Refractory Acute Myeloid Leukemia (R/R AML)
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16 authors.
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Abstract
backgroundSAR445419 is an investigational, off-the-shelf, allogeneic NK cell therapy derived from donor peripheral blood mononuclear cells and expanded ex vivo using PM21 particles.
methodsThis multicenter, Phase 1, dose-escalation study (NCT05712278) evaluated optimal dose(s), safety, and tolerability of SAR445419 in adults (aged ≥ 18 years) with relapsed/refractory acute myeloid leukemia (R/R AML). Following lymphodepleting chemotherapy (fludarabine 30 mg/m
resultsOf the 12 planned participants, 7 patients were enrolled, of whom 6 received SAR445419 before sponsor decided early study termination for reasons unrelated to safety or efficacy. No DLTs were observed. All participants experienced treatment-emergent adverse events (TEAEs); six had grade ≥ 3 TEAEs; and four had serious adverse events (SAEs). Two SAR445419-related SAEs (infusion-related reactions: both grade 2) were managed with supportive care. All participants experienced grade 3 anemia and grade 4 thrombocytopenia and neutropenia. Five deaths were reported, all due to disease progression, none related to SAR445419. No clinical responses were observed.
conclusionsThis study demonstrated the overall safety of off-the-shelf ex vivo expanded allogeneic NK cells in patients with R/R AML. The successful manufacturing and distribution support the feasibility of donor-derived off-the-shelf NK cells in a clinical setting. Further investigations are required to improve the clinical efficiency of NK cells.
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