Fate Therapeutics Showcases Data from FT819 and FT839 Programs at the European Congress of Rheumatology Annual Meeting

FT819 off-the-shelf CAR T-cell therapy product candidate continues to broaden patient access with 21 SLE patients now treated, including as outpatient administration in community hospitals Continued demonstration of rapid and sustained clinical improvement with favorable tolerability profile observed following treatment of systemic lupus erythematosus (SLE) patients with FT819 and less-intensive conditioning chemotherapy; a majority of evaluable patients on background glucocorticoids achieved either complete glucocorticoid discontinuation or guideline-based tapering targets FT819 demonstrated deep B-cell depletion with reconstitution of preferred less-differentiated state associated with a healthier repertoire of B cells; elimination of dominant B-cell clones in dose-dependent manner was seen while vaccination titers were maintained In preclinical studies, FT839 exhibited comprehensive elimination of activated immune cells in rheumatoid arthritis patient samples; activity accomplished while in allogeneic setting without the need for conditioning chemotherapy SAN DIEGO, June 04, 2026 (GLOBE NEWSWIRE) -- Fate Therapeutics, Inc. (NASDAQ: FATE), a clinical-stage biopharmaceutical company dedicated to bringing a transformative pipeline of induced pluripotent stem cell (iPSC)-derived cellular immunotherapies broadly to patients with cancer and autoimmune disease, presented data today featuring its off-the-shelf CAR T-cell programs FT819 and FT839 at the European Congress of Rheumatology (EULAR) annual meeting being held in London, UK, June 3-6, 2026. “The data presented for FT819 with less-intensive conditioning and off-the-shelf CAR T-cell therapy product candidate in SLE is truly exciting, and we are very pleased that our highly-differentiated therapeutic approach has the potential to transform autoimmune disease outcomes by supporting persistent reductions in cSLEDAI, PGA, FACIT-fatigue, and UPCr scores and promoting effective B-cell depletion with preferred subtype reconstitution while maintaining a distinctly favorable tolerability profile,” said Bob Valamehr, Ph.D.