Background In addition to lowering low density lipoprotein cholesterol (LDL-C), statin therapy also raises high density lipoprotein cholesterol (HDL-C) levels. Interindividual variation in HDL-C response to statins may be partially explained by genetic variation. Methods and results We performed a meta-analysis of genome-wide association studies (GWAS) to identify variants with an effect on statin-induced high density lipoprotein cholesterol (HDL-C) changes. The 123 most promising signals with p < 1×10-4 from the 16 769 statin-treated participants in the first analysis stage were followed up in an independent group of 10 951 statintreated individuals, providing a total sample size of 27 720 individuals. The only associations of genomewide significance (p < 5×10-8) were between minor alleles at the CETP locus and greater HDL-C response to statin treatment. Conclusions Based on results from this study that included a relatively large sample size, we suggest that CETP may be the only detectable locus with common genetic variants that influence HDL-C response to statins substantially in individuals of European descent. Although CETP is known to be associated with HDL-C, we provide evidence that this pharmacogenetic effect is independent of its association with baseline HDL-C levels.

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Journal Journal of Medical Genetics
Postmus, D, Warren, H, Trompet, S, Arsenault, B.J, Avery, C.L, Bis, J.C, … Krauss, R.M. (2016). Meta-analysis of genome-wide association studies of HDL cholesterol response to statins. Journal of Medical Genetics, 53(12), 835–845. doi:10.1136/jmedgenet-2016-103966