Background: Selective depletion of T cells expressing LAG-3, an immune checkpoint receptor that is upregulated on activated T cells, has been investigated in pre-clinical models as a potential therapeutic approach in inflammatory and autoimmune diseases where activated T cells are implicated.
Aims: GSK2831781, a depleting monoclonal antibody that specifically binds LAG-3 proteins, may deplete activated LAG-3 cells in ulcerative colitis (UC).
Methods: Patients with moderate to severe UC were randomised to GSK2831781 or placebo.