Rubius Therapeutics Highlights Preclinical Oncology Data at Society for Immunotherapy of Cancer Annual Meeting and AACR-NCI-EORTC International…

CAMBRIDGE, Mass., Nov. 08, 2019 (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, today announced that the Company presented preclinical data supporting its lead artificial antigen presenting cell program, RTX-321, for the potential treatment of HPV 16-positive tumors at the Society for Immunotherapy of Cancer (SITC) 34th Annual Meeting. Last month at the AACR-NCI-EORTC International Conference on Molecular Targets and Cancer, Rubius Therapeutics presented data demonstrating that its Red Cell Therapeutics can be engineered to create a loadable system for personal neoantigens, unlocking a potential new use of our RED PLATFORM.

Current cell therapy approachesare limited by a number of challenges they requireharvesting and engineering a patients own T cells, undergo a lengthy manufacturing process, are limited in the number of targets that can be pursued, and, once administered to patients, can elicit unpredictable immune responses, including severe side effects. Today at SITC, we presented additional preclinical proof of concept data demonstrating that Rubius Therapeutics can engineer allogeneic artificial antigen presenting cells against a tumor-associated antigen that significantly expand antigen-specific T cells and nearly eliminates lung metastases in a melanoma mouse model with minimal, reversible toxicity, said Pablo J. Cagnoni, M.D., chief executive officer of Rubius Therapeutics. Separately, current personalized neoantigen approaches are promising, but do not adequately stimulate and expand the right subset of T cells to the levels required to achieve robust efficacy. Last month at AACR-NCI-EORTC, Rubius Therapeutics presented data showing that we can engineer our red cells to create a loadable system for personal neoantigens and dramatically expand primary T cells to induce an immune response, unlocking a potential new use of our RED PLATFORM.

Data Summaries

Red Cell Therapeutic Artificial Antigen Presenting Cells (aAPCs) at SITC

(P233) RTX-321, an Allogeneic Artificial Antigen Presenting Red Cell Therapeutic, Expressing MHC I-Peptide, 4-1BBL and IL-12, Promotes Antigen-Specific T Cell Expansion and Anti-Tumor Activity in HPV16+ Tumors

Loadable Red Cell Therapeutic Artificial Antigen Presenting Cells for Neoantigens at AACR-NCI-EORTC

(B062) Enabling the Rapid Generation of Allogeneic Artificial Antigen Presenting Cell (aAPC) Red Cell Therapeutics with a Loadable MHC System

AboutRubius Therapeutics

Rubius Therapeuticsis a clinical-stage biopharmaceutical company developing a new class of medicines called Red Cell Therapeutics. The Companys proprietary RED PLATFORMwas designed to genetically engineer and culture Red Cell Therapeutics that are selective, potent and off-the-shelf allogeneic cellular therapies for the potential treatment of several diseases across multiple therapeutic areas. Rubius initial focus is to advance RCT product candidates for the treatment of rare diseases, cancer and autoimmune diseases by leveraging three distinct therapeutic modalities cellular shielding, potent cell-cell interaction and tolerance induction. For more information, visitwww.rubiustx.com,or follow us onTwitterandLinkedIn.

Forward-Looking StatementsThis press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995, as amended, including, without limitation, statements regarding our expectations regarding the therapeutic potential of our RED PLATFORM, Red Cell Therapeutic artificial antigen presenting cells and RTX-321, our expectations regarding IND-enabling studies for RTX-321, our expectations regarding the potential therapeutic benefits of RTX-321, our expectations regarding the potential expansion of uses of our RED PLATFORM and our strategy, business plans and focus. The words may, will, could, would, should, expect, plan, goal, anticipate, intend, believe, estimate, predict, project, potential, continue, target and similar expressions are intended to identify forward-looking statements, although not all forward-looking statements contain these identifying words. Any forward-looking statements in this press release are based on managements current expectations and beliefs and are subject to a number of risks, uncertainties and important factors that may cause actual events or results to differ materially from those expressed or implied by any forward-looking statements contained in this press release, including, without limitation, those risks and uncertainties related to the development of our RCT product candidates and their therapeutic potential and other risks identified in ourSECfilings including our Quarterly Report on Form 10-Q for the quarter endedJune 30, 2019, and subsequent filings with theSEC. We caution you not to place undue reliance on any forward-looking statements, which speak only as of the date they are made. We disclaim any obligation to publicly update or revise any such statements to reflect any change in expectations or in events, conditions or circumstances on which any such statements may be based, or that may affect the likelihood that actual results will differ from those set forth in the forward-looking statements. Any forward-looking statements contained in this press release represent our views only as of the date hereof and should not be relied upon as representing its views as of any subsequent date. We explicitly disclaim any obligation to update any forward-looking statements.Contacts:Lori MelanonVice President, Corporate Communications and Investor Relations+1 (617) 949-5296lori.melancon@rubiustx.com

Media Contact:Dan Budwick1AB+1 (973) 271-6085dan@1abmedia.com

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Rubius Therapeutics Highlights Preclinical Oncology Data at Society for Immunotherapy of Cancer Annual Meeting and AACR-NCI-EORTC International...