共 31 条
Nonclinical safety profile of telbivudine, a novel potent antiviral agent for treatment of hepatitis B
被引:25
作者:

Bridges, Edward G.
论文数: 0 引用数: 0
h-index: 0
机构:
Idenix Pharmaceut Inc, Cambridge, MA 02139 USA Idenix Pharmaceut Inc, Cambridge, MA 02139 USA

Selden, Jules R.
论文数: 0 引用数: 0
h-index: 0
机构:
Idenix Pharmaceut Inc, Cambridge, MA 02139 USA Idenix Pharmaceut Inc, Cambridge, MA 02139 USA

Luo, Shouqi
论文数: 0 引用数: 0
h-index: 0
机构:
Idenix Pharmaceut Inc, Cambridge, MA 02139 USA Idenix Pharmaceut Inc, Cambridge, MA 02139 USA
机构:
[1] Idenix Pharmaceut Inc, Cambridge, MA 02139 USA
关键词:
D O I:
10.1128/AAC.00029-08
中图分类号:
Q93 [微生物学];
学科分类号:
071005 ;
100705 ;
摘要:
Telbivudine is a novel nucleoside drug recently approved for the treatment of patients with chronic hepatitis B. Its nonclinical safety was evaluated in a comprehensive program of studies, including safety pharmacology, acute and chronic toxicity, reproductive and developmental toxicity, genotoxicity, and carcinogenicity. There were no test article-related effects observed in an in vitro hERG assay or in a core battery of safety pharmacology studies (central nervous system, respiratory, and cardiovascular safety pharmacology studies). Telbivudine was well tolerated in rats and in monkeys following single oral doses up to 2,000 mg/kg/day. Except for equivocal axonopathic findings in monkeys and occasional incidences of emesis, soft feces, and minor changes in body weight and food consumption, there was no target organ toxicity observed in mice, rats, or monkeys following oral administration for up to 3, 6, or 9 months, respectively, at doses up to 3,000 mg/kg/day. Axonopathy in the sciatic nerves and in the spinal cords of monkeys dosed at 1,000 mg/kg/day observed in a 9-month study was considered equivocal, as the role of telbivudine in the injury could not be determined. Slightly higher incidences of abortion and premature delivery observed in rabbits dosed at 1,000 mg/kg/day were considered secondary to maternal toxicity. There was no evidence of genotoxicity or carcinogenicity. These results suggest that telbivudine has a favorable safety profile and support its use in patients with chronic compensated hepatitis B viral infection.
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页码:2521 / 2528
页数:8
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