TNT119 is an anti-CD19 antibody designed to achieve broad and deep depletion of pathogenic B-cells with a favorable tolerability profile and convenient dosing regimen with the potential for subcutaneous administration. Following the closing of the acquisition, Eliem’s strategy will be to develop TNT119 for a range of autoimmune-mediated diseases, where it believes CD19-targeted approaches have clear biological rationale, where it can potentially achieve clinical proof-of-concept, and where it can introduce product candidates that can be meaningfully differentiated in the market. TNT119’s lead indication is in systemic lupus erythematosus, the most common type of lupus and an autoimmune disease in which the immune system attacks its own tissue, causing widespread inflammation and tissue damage in affected organs including joints, skin, brain, lungs, kidneys and blood vessels. In systemic lupus erythematosus, the underlying pathology involves the production of autoantibodies by autoreactive B cells and the formation of immune complexes that contribute to inflammation and tissue damage. CD19 is a protein expressed on the surface of these B cells, and it plays a role in B cell activation, proliferation and survival. TNT119 is designed to target and deplete CD19-expressing B cells known to produce autoantibodies, thereby providing a novel approach to the potential treatment of systemic lupus erythematosus. Eliem expects to initiate Phase 2 clinical trials of TNT119 later this year.
Leadership Team and Board of Director Updates
In connection with the closing of the acquisition, Eliem is announcing additions to its executive leadership team with the appointment of Aoife Brennan, M.B., Ch.B., as President and Chief Executive Officer and Jan Hillson, M.D., as Senior Clinical Advisor. Dr. Aoife Brennan and Dr. Stephen Thomas will also join Eliem’s Board of Directors.
Aoife Brennan, M.B., Ch.B.: Dr. Brennan brings to Eliem over 20 years of experience leading drug development organizations across a range of stages and therapeutic areas having most recently served as the President and Chief Executive Officer of Synlogic, a clinical stage biotechnology company developing treatments for rare metabolic diseases based on synthetic biology. In that role, she led the organization from early-stage private company to a late-phase public company with internal GMP manufacturing capabilities, pioneering new regulatory pathways for bacterial therapeutics. She joined Synlogic as Chief Medical Officer in 2016 and was promoted to CEO in October 2018. Prior to Synlogic, Dr. Brennan served as Vice President and Head of the Rare Disease Innovation Unit at Biogen, Inc., where she led the global marketing approvals of ALPROLIX®, ELOCTATE® and SPINRAZA® as well as other early-stage programs. She currently serves as a director of Fibrogen Inc., Cerevance, LLC and Xilio Therapeutics, and previously served as a director of Synlogic from October 2018 to March 2024, and as a director of Ra Pharmaceuticals, Inc. from September 2018 through its acquisition in April 2020. Dr. Brennan holds a medical degree from Trinity College Dublin, Ireland and completed her post-graduate training in internal medicine, endocrinology and metabolism at the Royal College of Physicians in Ireland. She also completed post-doctoral training in clinical research and metabolism at the Beth Israel Deaconess Medical Center in Boston and is a graduate of the Harvard Medical School Scholars in Clinical Science Program.
Jan Hillson, M.D.: Dr. Hillson is a rheumatologist and clinical immunologist with 20 years of experience in academic research, patient care and teaching, and more than 15 years of experience in the biotech industry spanning translational, preclinical, early and late clinical development. Prior to Eliem, Dr. Hillson was a Partner at Cascadia Drug Development Group providing strategic advisory support, including indication prioritization, investment opportunity diligence, and planning and oversight of therapeutic development with a focus in immunology. Dr. Hillson’s experience in the biotechnology industry includes senior clinical development and leadership roles at ZymoGenetics (acquired by Bristol Myers Squibb), Momenta (acquired by Johnson & Johnson), Chemocentryx (acquired by Amgen), Alpine Immune Sciences, and Provention Bio (acquired by Sanofi), where she was responsible for the design and execution of clinical development plans and trials for multiple therapeutic candidates in autoimmune diseases and immunovirology. Dr. Hillson is currently serving on the Board of Directors for Eledon Pharmaceuticals. Dr. Hillson received her M.D. from Stanford School of Medicine, an M.S. from the California Institute of Technology, an M.S. in Marine Chemistry from Scripps Institute of Oceanography, and a B.S. from Michigan State University.
Advisors
Leerink Partners served as the exclusive financial advisor and Wilmer Cutler Pickering Hale and Dorr LLP served as legal counsel to Eliem. Cooley LLP served as legal counsel to Tenet.
About Eliem Therapeutics, Inc.
Eliem Therapeutics, following the close of the acquisition, will be focused on developing therapeutics for autoimmune-driven inflammatory diseases, including advancing TNT119, an anti-CD19 antibody designed for a broad range of autoimmune diseases, including systemic lupus erythematosus, immune thrombocytopenia and membranous nephropathy.
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