 CAMBRIDGE, Mass., April 09, 2021 GLOBE NEWSWIRE -- Rubius Therapeutics, Inc. Nasdaq:RUBY, a clinical-stage biopharmaceutical company that is genetically engineering red blood cells to create an entirely new class of cellular medicines called Red Cell TherapeuticsTM, today reprised initial clinical results from its ongoing Phase 12 study of RTX-240 in advanced solid tumors at the American Association for Cancer Research AACR Virtual Annual Meeting. Posters will be available online tomorrow on the AACR website and Publications page of the Rubius Therapeutics website at 8:30 a.m. EDT. The data included in the poster are based on a data cutoff date of February 28, 2021. 