Lupus & antiphospholipid syndrome

Causal relationship between PCSK9 inhibitor and autoimmune diseases: a drug target Mendelian randomization study

Arthritis Res TherPublished Drug target Mendelian randomization study

Authors' conclusion

PCSK9 inhibitor significantly reduced the risk of SLE but increased the risk of asthma and CD. In contrast, HMGCR inhibitor may be a risk factor for RA, asthma, and CD.

Study context

Population
Published genome-wide association studies statistics
Comparison
Genetically proxied PCSK9 inhibition vs HMGCR inhibition, on autoimmune disease risk
Outcome
Risk of systemic lupus erythematosus (SLE), rheumatoid arthritis (RA), myasthenia gravis, multiple sclerosis, asthma, Crohn's disease, ulcerative colitis and type 1 diabetes
Methodological detailsgenetic proxies from published GWAS statistics, HMGCR inhibitor (statin target) as comparator, coronary heart disease as positive control
  • Genetic proxies from published GWAS statistics
  • HMGCR inhibitor (statin target) as comparator
  • Coronary heart disease as positive control

Main finding

As reported in the abstract

Risk of autoimmune diseases
Estimate (95% CI)P value
PCSK9 inhibitor
OR (SLE) 0.47(0.30–0.76)
P = 1.74 × 10-3
PCSK9 inhibitor
OR (asthma) 1.15(1.03–1.29)
P = 1.68 × 10-2
PCSK9 inhibitor
OR (Crohn's disease) 1.38(1.05–1.83)
P = 2.28 × 10-2
HMGCR inhibitor
OR (RA) 1.58(1.19–2.11)
P = 1.67 × 10-3
HMGCR inhibitor
OR (asthma) 1.21(1.04–1.40)
P = 1.17 × 10-2
HMGCR inhibitor
OR (Crohn's disease) 1.60(1.08–2.39)
P = 2.04 × 10-2

Original publication

Causal relationship between PCSK9 inhibitor and autoimmune diseases: a drug target Mendelian randomization study. Arthritis Res Ther. Published 14 August 2023. doi:10.1186/s13075-023-03122-7

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