Pharmacogenetic of voriconazole antifungal agent in pediatric patients.

Aim: We explored the role of SNPs within the SLCO1B3, SLCO1B1, SLC22A6, ABCB1, ABCG2, SLCO3A1, CYP2C19, ABCC2, SLC22A1, ABCB11 and NR1I2 genes on voriconazole pharmacokinetics. Patients & methods: 233 pediatric patients were enrolled. Drug plasma C-trough was measured by a HPLC-MS method. Allelic discrimination was performed by qualitative real-time PCR. Results: SLCO1B3 rs4149117 c. 334 GT/TT (p = 0.046), ABCG2 rs13120400 c. 1194 + 928 CC (p = 0.029) and ABCC2 rs717620 c.-24 GA/AA (p = 0.025) genotype groups significantly influenced C-trough. ethnicity (p = 0.042), sex (p = 0.033), SLCO1B3 rs4149117 c. 334 GT/TT (p = 0.041) and ABCB1 rs1045642 c. 3435 TT (p = 0.016) have been retained in linear regression model as voriconazole predictor factors. Conclusion: Understanding how some gene polymorphisms affect the voriconazole pharmacokinetic is essential to optimally dose this agent.