Definition

A monoclonal antibody against CD25 (IL-2R alpha), with potential antineoplastic activity. Upon administration, vopikitug targets and binds to CD25 expressed on tumor-infiltrating regulatory T (Treg) cells. This may deplete Treg cells and prevent immunosuppression, thereby enhancing anti-tumor immune responses. CD25, the alpha chain of the interleukin (IL)-2 receptor, is highly expressed on Treg cells but not on effector T (Teff) cells in tumors.