Ligelizumab

Ligelizumab (QGE 031) is a humanized high-affinity anti-immunoglobulin IgE monoclonal antibody. Ligelizumab selectively inhibits the binding of IgE to the high-affinity receptor FcεRI, while the inhibitory effect on the low-affinity receptor CD23 is weak. Ligelizumab can inhibit the activation of effector cells such as mast cells and Basophil, while reducing the production of IgE by B cells, and restoring the IFN-α production and regulatory T cell (Treg) induction function of plasmacytoid dendritic cells (pDC). Ligelizumab can be used in the study of allergic disorders (such as chronic spontaneous urticaria, allergic asthma)[1][2].