Unknown

Dataset Information

0

Impact of UGT2B17 Gene Deletion on the Pharmacokinetics of 17-Hydroexemestane in Healthy Volunteers.


ABSTRACT: Exemestane is an aromatase inhibitor drug used for the treatment of hormone-dependent breast cancer. 17-Hydroexemestane, the major and biologically active metabolite of exemestane in humans, is eliminated via glucuronidation by the polymorphic UGT2B17 phase II drug-metabolizing enzyme. Previous microsomal studies have shown that UGT2B17 gene deletion affects the intrinsic hepatic clearances of 17-hydroexemestane in vitro. In this open-label study we set out to assess the effect of UGT2B17 gene deletion on the pharmacokinetics of 17-hydroexemestane in healthy female volunteers with and without UGT2B17. To achieve this goal, 14 healthy postmenopausal women (8 carriers of the homozygous UGT2B17 wild-type allele and 6 carriers of the homozygous UGT2B17 gene-deletion allele) were enrolled and invited to receive a single 25-mg oral dose of exemestane. Pharmacokinetics was assessed over 72 hours postdosing. Our results showed that there were statistically significant differences in plasma 17-hydroexemestane AUC0-? (P = .0007) and urine 17-hydroexemestane C24h (P = .001) between UGT2B17 genotype groups. Our data suggest that UGT2B17 gene deletion influences 17-hydroexemestane pharmacokinetics in humans.

SUBMITTER: Chen SM 

PROVIDER: S-EPMC4882280 | biostudies-literature | 2016 Jul

REPOSITORIES: biostudies-literature

altmetric image

Publications

Impact of UGT2B17 Gene Deletion on the Pharmacokinetics of 17-Hydroexemestane in Healthy Volunteers.

Chen Shanly M SM   Atchley Daniel H DH   Murphy Michael A MA   Gurley Bill J BJ   Kamdem Landry K LK  

Journal of clinical pharmacology 20151231 7


Exemestane is an aromatase inhibitor drug used for the treatment of hormone-dependent breast cancer. 17-Hydroexemestane, the major and biologically active metabolite of exemestane in humans, is eliminated via glucuronidation by the polymorphic UGT2B17 phase II drug-metabolizing enzyme. Previous microsomal studies have shown that UGT2B17 gene deletion affects the intrinsic hepatic clearances of 17-hydroexemestane in vitro. In this open-label study we set out to assess the effect of UGT2B17 gene d  ...[more]

Similar Datasets

| S-EPMC4760435 | biostudies-other
| S-EPMC5610496 | biostudies-literature
| S-EPMC7993260 | biostudies-literature
| S-EPMC8742557 | biostudies-literature
| S-EPMC4639630 | biostudies-literature
| S-EPMC4759723 | biostudies-literature
| S-EPMC5643367 | biostudies-literature
| S-EPMC7870595 | biostudies-literature
| S-EPMC4076004 | biostudies-other
| S-EPMC3880632 | biostudies-literature