NCIt definition : A longer-acting antibody directed against terminal complement protein C5, with potential
anti-inflammatory activity. Upon administration, ravulizumab binds to terminal complement
protein C5, thereby blocking C5 cleavage into pro-inflammatory components and preventing
the complement-mediated destruction of red blood cells (RBCs) as seen in paroxysmal
nocturnal hemoglobinuria (PNH). Compared to other anti-C5 antibodies, ALXN1210 is
longer-acting and allows for monthly dosing. C5, a complement pathway protein, is
expressed at high levels by the liver.;