PRALUENT: a PCSK9i that ticks all the boxes1–4 PRALUENT is a PCSK9i that reduces the levels of LDL-C in the blood.2 It is a fully human IgG1 monoclonal antibody that works by inhibiting the binding of PCSK9 to LDL- receptors. As a result, PRALUENT increases the number of LDL-receptors available to clear LDL, thereby lowering LDL-C levels.2 Elevated LDL-C levels have been significantly associated with cardiovascular disease such as heart attacks and strokes.1