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CYP51A1 polymorphism and voriconazole-associated hepatotoxicity in children undergoing hematopoietic cell transplant.


ABSTRACT: Fungal CYP51A (14α-sterol demethylase) is the target of an azole antifungal, voriconazole (VCZ), which also partially inhibits human CYP51A1. Hepatotoxicity is a common adverse effect of azoles, which is reported to be caused by altered gene expressions secondary to cholesterol synthesis inhibition by azoles. This is a post-hoc analysis of a previously conducted phase 1 dose-finding study of prophylactic VCZ in 56 pediatric hematopoietic cell transplant recipients. We explored an association between variants in human CYP51A1 (rs2282976 and rs6465348) and VCZ-induced hepatotoxicity. Genotype A/G or G/G in rs6465348 showed lower odds of hepatotoxicity after adjusting for VCZ area-under-the-curve (OR: 0.10, 95% CI: 0.01 - 0.79, vs. A/A).

SUBMITTER: Takahashi T 

PROVIDER: S-EPMC8561836 | biostudies-literature | 2021 Jun

REPOSITORIES: biostudies-literature

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<i>CYP51A1</i> polymorphism and voriconazole-associated hepatotoxicity in children undergoing hematopoietic cell transplant.

Takahashi Takuto T   Smith Angela R AR   Jacobson Pamala A PA   Alharbi Abeer F AF   Fisher James J   Rubin Nathan T NT   Kirstein Mark N MN  

International journal of clinical pharmacology and therapeutics 20210601 6


Fungal <i>CYP51A</i> (14α-sterol demethylase) is the target of an azole antifungal, voriconazole (VCZ), which also partially inhibits human <i>CYP51A1</i>. Hepatotoxicity is a common adverse effect of azoles, which is reported to be caused by altered gene expressions secondary to cholesterol synthesis inhibition by azoles. This is a post-hoc analysis of a previously conducted phase 1 dose-finding study of prophylactic VCZ in 56 pediatric hematopoietic cell transplant recipients. We explored an a  ...[more]

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