A Phase 1 Study of FT819 in B-cell Mediated Autoimmune Disease

This is a phase 1 study designed to evaluate the safety, pharmacokinetics (PK), and anti-B-cell activity of FT819 following treatment with or without auxiliary medicinal product (AMP) in participants with moderate-to-severe active systemic lupus erythematosus (SLE) with or without nephritis, antineutrophilic cytoplasmic antibody (ANCA)-associated vasculitis (AAV), idiopathic inflammatory myositis (IIM), and systemic sclerosis (SSc). The study will consist of a dose-escalation stage, followed by an expansion stage to further evaluate the safety and activity of FT819.

NCT Number	NCT06308978
Lead Sponsor	Fate Therapeutics
Conditions	Antineutrophilic Cytoplasmic Antibody (ANCA)- Associated Vasculitis (AAV), Idiopathic Inflammatory Myositis (IIM), Systemic Sclerosis (SSc), Systemic Lupus Erythematosus (SLE), Lupus Nephritis
Enrollment	244 participants
Start Date	2024-03-28
Primary Completion	2027-09-30 (estimated)
Study Completion	2042-09-30 (estimated)
Updated on ClinicalTrials.gov	2026-05-22