Both are PCSK9 inhibitors. Here is how Praluent and Leqvio compare on class, mechanism, dosing, approval and supply.
PRALUENT ® is indicated: To reduce the risk of major adverse cardiovascular (CV) events (coronary heart disease death, myocardial infarction, stroke, or unstable angina requiring hospitalization) in adults at increased risk for these events . As an adjunct to diet and exercise to reduce low- density lipoprotein cholesterol (LDL-C) in: adults with hypercholesterolemia. adults and pediatric patients aged 8 years and older with heterozygous familial hypercholesterolemia (HeFH). adults with homozygous familial hypercholesterolemia (HoFH). PRALUENT is a proprotein convertase subtilisin kexin type 9 (PCSK9) inhibitor indicated: To reduce the risk of major adverse cardiovascular (CV) events (coronary heart disease death, myocardial infarction, stroke, or unstable angina requiring hospitalization) in adults at increased risk for these events. ( 1 ) As an adjunct to diet and exercise to reduce l…
LEQVIO ® is indicated as an adjunct to diet and exercise to reduce low-density lipoprotein cholesterol (LDL-C) in: adults with hypercholesterolemia. adults and pediatric patients aged 12 years and older with heterozygous familial hypercholesterolemia (HeFH). pediatric patients aged 12 years and older with homozygous familial hypercholesterolemia (HoFH). LEQVIO is a small interfering RNA (siRNA) directed to proprotein convertase subtilisin kexin type 9 (PCSK9) mRNA indicated as an adjunct to diet and exercise to reduce low-density lipoprotein cholesterol (LDL-C) in: adults with hypercholesterolemia. ( 1 ) adults and pediatric patients aged 12 years and older with heterozygous familial hypercholesterolemia (HeFH). ( 1 ) pediatric patients aged 12 years and older with homozygous familial hypercholesterolemia (HoFH). ( 1 )
12.1 Mechanism of Action Alirocumab is a human monoclonal antibody that binds to proprotein convertase subtilisin kexin type 9 (PCSK9). PCSK9 binds to the low-density lipoprotein (LDL) receptors (LDLR) on the surface of hepatocytes to promote LDLR degradation within the liver. By inhibiting the binding of PCSK9 to LDLR, alirocumab increases the number of LDLRs available to clear LDL, thereby lowering LDL-C levels.
12.1 Mechanism of Action Inclisiran is a double-stranded small interfering ribonucleic acid (siRNA), conjugated on the sense strand with triantennary N-Acetylgalactosamine (GalNAc) to facilitate uptake by hepatocytes. In hepatocytes, inclisiran utilizes the RNA interference mechanism and directs catalytic breakdown of mRNA for PCSK9. This increases LDL-C receptor recycling and expression on the hepatocyte cell surface, which increases LDL-C uptake and lowers LDL-C levels in the circulation.
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Plain-English summaries and drug-class explainers are written and reviewed by the Priya Life Science editorial team, led by Sreepriya Prasannan (MSc Digital Transformation of Life Sciences (Innopharma Education / Griffith College); MSc & BSc Botany). Data is retrieved automatically from the sources above and cross-checked with AI-assisted verification (Anthropic's Claude) — brand and generic names are matched against the exact FDA product record so that a combination product or a different formulation cannot be mistaken for the drug on this page. An editor reviews the result before publication. We describe this in full in our editorial standards and corrections policy. The FDA data on this page was last retrieved on 6 Aug 2026.