Gaithersburg, Md., January 25, 2022 – Cartesian Therapeutics, a fully integrated clinical-stage biotechnology company pioneering RNA cell therapy in and beyond oncology, today announced that it has dosed the first patient in a Phase 1/2a multicenter clinical study evaluating Descartes-25 in patients with multiple myeloma. To the company’s knowledge, Descartes-25 is the first off-the-shelf RNA cell therapy to enter clinical trials for any cancer and marks the company’s fifth FDA Investigational New Drug (IND) allowance in five years. Descartes-25 is produced at Cartesian’s wholly owned cGMP manufacturing facility with the company’s proprietary RNA Armory® cell manufacturing platform. This platform now includes an internally developed, Part 1271-compliant Master Cell Bank of human umbilical cord Mesenchymal Stem Cells (MSC) that was used to engineer Descartes-25.