Abstr LB0004 CC312 is a CD19/CD3/CD28 tri-specific T cell engager and sustains SRI-4 responses beyond one year with rapid, deep B-cell depletion in autoimmune diseases. Not CAR-T. Not a conventional biologic. A T cell engager that redirects your own immune cells to deplete B https://t.co/rTs3Rg7BPe