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Marker Therapeutics initiated Phase 1 RAPID study to investigate Multi-Antigen Recognizing (MAR) T cells as an Off-the-Shelf (OTS) product to accelerate time to treatment
OTS product was well tolerated - safety data consistent with other MAR-T cell studies
HOUSTON, Oct. 06, 2025 (GLOBE NEWSWIRE) -- Marker Therapeutics, Inc. (NASDAQ:MRKR), a clinical-stage immuno-oncology company focusing on developing next-generation T cell-based immunotherapies for the treatment of hematological malignancies and solid tumor indications, today announced that the first patient has been treated in the Company's OTS program, with encouraging preliminary safety data.
Marker is evaluating the safety and efficacy of escalating doses of MT-401, a multi-antigen recognizing (MAR) T cell product targeting four antigens, as an OTS product in the Phase 1 RAPID study (clinicaltrials.gov Identifier: NCT06552416). The first study participant received the OTS product at the initial dose level (100x106 cells) and was monitored for 28 days. The therapy was well tolerated with no treatment-related adverse events. This observation is consistent with the favorable safety profile and tolerability previously reported for MAR-T cells. The OTS product will be initially tested in patients with acute myeloid leukemia (AML) or myelodysplastic syndromes (MDS), with the potential to be expanded to other indications.
Posted In: MRKR
