PCSK9-directed therapies: an update
Abstract
Purpose of review Two large cardiovascular outcomes trials of monoclonal antibodies against proprotein convertase subtilisin/kexin type 9 (PCSK9) demonstrated that therapeutic inhibition of extracellular PCSK9 markedly reduces LDL cholesterol concentration and cardiovascular risk. Several novel strategies to inhibit PCSK9 function are in development. Different mechanisms of action may determine specific properties with potential relevance for patient care. Recent findings For the monoclonal antibodies evolocumab und alirocumab as first-generation PCSK9 inhibitors, follow-up data of up to 8 years of exposure complement the information on efficacy and safety available from outcome trials. For the small-interfering RNA inclisiran as second-generation PCSK9 inhibitor, several phase III trials have been published and a cardiovascular outcome trial has completed recruitment and is ongoing. Third-generation PCSK9 inhibitors encompass, among others, orally available drugs such as MK-0616 and the fusion protein lerodalcibep. Additional strategies to inhibit PCSK9 include vaccination and gene editing. Summary Long-term inhibition of PCSK9 with monoclonal antibodies is safe and conveys sustained cardiovascular benefit. Novel strategies to inhibit PCSK9 function such as orally available drugs, RNA targeting, and one-time treatment with gene editing may further enhance the therapeutic armamentarium and enable novel preventive strategies.
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The second-generation PCSK9 inhibitor, inclisiran, is a small interfering RNA administered by health care professionals biannually during the maintenance phase.
“The second-generation PCSK9 inhibitor, inclisiran, is a small interfering ribonucleic acid (siRNA) administered by health care professionals biannually during the maintenance phase.2”
From Adherence to PCSK9 Inhibitors in Clinical Practice (2026) · cites this paper as [2]
Currently available PCSK9 inhibitors are administered via injection and are typically intended for lifelong use.
“Currently available PCSK9 inhibitors are administered via injection and are typically intended for lifelong use.2”
From Adherence to PCSK9 Inhibitors in Clinical Practice (2026) · cites this paper as [2]
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- Authors
- Katzmann, J. L., & Laufs, U.
- Affiliations
- University Hospital Leipzig (DE)
- Corresponding author
- Katzmann, Julius L.
- Venue
- Current Opinion in Lipidology
- Published
- 2024-01-19
- Volume
- 35
- Issue
- 3
- Pages
- 117-125
- ISSN
- 0957-9672 (ISSN-L)
- 1473-6535
- OpenAlex
- W4391251010
- Cited by
- 22
- References
- 41
- Citations by year
- 2026: 4 · 2025: 12 · 2024: 6
- FWCI
- 2.43
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Current Opinion in Lipidology (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Health Sciences › Medicine › Surgery › Lipoproteins and Cardiovascular Health
- Health Sciences › Medicine › Surgery › Cholesterol and Lipid Metabolism
- Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Lipid metabolism and disorders
- Keywords
- PCSK9 inhibitors, PCSK9, evolocumab, alirocumab, inclisiran, genome editing, LDL cholesterol lowering, cardiovascular risk reduction, long-term safety, siRNA
- MeSH terms
- Proprotein Convertase 9, PCSK9 Inhibitors, Animals, Antibodies, Monoclonal, Cardiovascular Diseases, Humans
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