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. 2023 Mar;47(2):198-212.
doi: 10.1002/gepi.22514. Epub 2023 Jan 26.

Study of effect modifiers of genetically predicted CETP reduction

Marc-André Legault  1   2   3 , Amina Barhdadi  1   2 , Isabel Gamache  1   3 , Audrey Lemaçon  1   2 , Louis-Philippe Lemieux Perreault  1   2 , Jean-Christophe Grenier  1 , Marie-Pierre Sylvestre  4   5 , Julie G Hussin  1   6 , David Rhainds  1 , Jean-Claude Tardif  1   6 , Marie-Pierre Dubé  1   2   6
Affiliations

Study of effect modifiers of genetically predicted CETP reduction

Marc-André Legault et al. Genet Epidemiol. 2023 Mar.

Abstract

Genetic variants in drug targets can be used to predict the long-term, on-target effect of drugs. Here, we extend this principle to assess how sex and body mass index may modify the effect of genetically predicted lower CETP levels on biomarkers and cardiovascular outcomes. We found sex and body mass index (BMI) to be modifiers of the association between genetically predicted lower CETP and lipid biomarkers in UK Biobank participants. Female sex and lower BMI were associated with higher high-density lipoprotein cholesterol and lower low-density lipoprotein cholesterol for the same genetically predicted reduction in CETP concentration. We found that sex also modulated the effect of genetically lower CETP on cholesterol efflux capacity in samples from the Montreal Heart Institute Biobank. However, these modifying effects did not extend to sex differences in cardiovascular outcomes in our data. Our results provide insight into the clinical effects of CETP inhibitors in the presence of effect modification based on genetic data. The approach can support precision medicine applications and help assess the external validity of clinical trials.

Keywords: CETP; drug target validation; effect modification; precision medicine.

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References

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