Polymorphisms in the ABCB1 SNPs (rs1045642 and rs4148738) and the CES1 SNP rs2244613 had no effect on dabigatran peak and trough concentrations in a study of 60 Caucasian patients with venous thromboembolism (Sychev et al., 2018). Here, ABCB1 is linked to venous thromboembolism.