Abstract:
OBJECTIVE:Axitinib (AG-013736), an oral, potent, and selective inhibitor of vascular endothelial growth factor receptors 1, 2, and 3, is metabolized primarily by cytochrome P450 (CYP) 3A with minor contributions from CYP1A2, CYP2C19, and glucuronidation. Co-administration with CYP inhibitors may increase systemic exposure to axitinib and alter its safety profile. This study evaluated changes in axitinib plasma pharmacokinetic parameters and assessed safety and tolerability in healthy subjects, following axitinib co-administration with the potent CYP3A inhibitor ketoconazole. METHODS:In this randomized, single-blind, two-way crossover study, 32 healthy volunteers received placebo, followed by a single 5-mg oral dose of axitinib, administered either alone or on the fourth day of dosing with oral ketoconazole (400 mg/day for 7 days). RESULTS:Axitinib exposure was significantly increased in the presence of ketoconazole, with a geometric mean ratio for area under the plasma concentration-time curve from time zero to infinity of 2.06 (90% confidence interval [CI]: 1.84-2.30) and a geometric mean ratio for maximum plasma concentration (C(max)) of 1.50 (90% CI: 1.33-1.70). For axitinib alone or with ketoconazole, C(max) occurred 1.5 and 2.0 h after dosing, respectively. Adverse events were predominantly mild; the most commonly reported treatment-related adverse events were headache and nausea. CONCLUSIONS:Axitinib plasma exposures and peak concentrations were increased following concurrent administration of axitinib and ketoconazole in healthy volunteers. Axitinib alone and in combination with ketoconazole was well tolerated. These findings provide an upper exposure for expected axitinib plasma concentrations in the presence of potent metabolic inhibition.
journal_name
Invest New Drugsjournal_title
Investigational new drugsauthors
Pithavala YK,Tong W,Mount J,Rahavendran SV,Garrett M,Hee B,Selaru P,Sarapa N,Klamerus KJdoi
10.1007/s10637-010-9511-6subject
Has Abstractpub_date
2012-02-01 00:00:00pages
273-81issue
1eissn
0167-6997issn
1573-0646journal_volume
30pub_type
杂志文章,随机对照试验abstract::SHetA2 is a small molecule flexible heteroarotinoid (Flex-Het) with promising cancer prevention and therapeutic activity. Extensive preclinical testing documented lack of SHetA2 toxicity at doses 25 to 150 fold above effective doses. Knowledge of the SHetA2 molecular target(s) that mediate(s) the mechanism of SHetA2 a...
journal_title:Investigational new drugs
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journal_title:Investigational new drugs
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journal_title:Investigational new drugs
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journal_title:Investigational new drugs
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journal_title:Investigational new drugs
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journal_title:Investigational new drugs
pub_type: 杂志文章,多中心研究
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journal_title:Investigational new drugs
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journal_title:Investigational new drugs
pub_type: 杂志文章
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journal_title:Investigational new drugs
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journal_title:Investigational new drugs
pub_type: 临床试验,杂志文章
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journal_title:Investigational new drugs
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journal_title:Investigational new drugs
pub_type: 杂志文章
doi:10.1007/s10637-015-0221-y
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journal_title:Investigational new drugs
pub_type: 杂志文章
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journal_title:Investigational new drugs
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journal_title:Investigational new drugs
pub_type: 临床试验,杂志文章
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journal_title:Investigational new drugs
pub_type: 杂志文章
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journal_title:Investigational new drugs
pub_type: 杂志文章
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journal_title:Investigational new drugs
pub_type: 杂志文章
doi:10.1007/s10637-009-9297-6
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journal_title:Investigational new drugs
pub_type: 杂志文章
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更新日期:2013-10-01 00:00:00
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journal_title:Investigational new drugs
pub_type: 杂志文章
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journal_title:Investigational new drugs
pub_type: 杂志文章
doi:10.1007/s10637-010-9515-2
更新日期:2012-02-01 00:00:00
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journal_title:Investigational new drugs
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更新日期:2004-01-01 00:00:00
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journal_title:Investigational new drugs
pub_type: 杂志文章,多中心研究
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更新日期:2015-04-01 00:00:00