Rizatriptan nonclinical toxicology: Difference between revisions
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== | ==Nonclinical Toxicology== | ||
<ref name="dailymed.nlm.nih.gov">{{Cite web | last = | first = | title = MAXALT (RIZATRIPTAN BENZOATE) TABLET MAXALT-MLT (RIZATRIPTAN BENZOATE) TABLET, ORALLY DISINTEGRATING [MERCK SHARP & DOHME CORP.] | url = http://dailymed.nlm.nih.gov/dailymed/lookup.cfm?setid=d93286f5-99f7-4dc5-aa9d-ad73ab8490db | publisher = | date = | accessdate = }}</ref> | ====13.1 Carcinogenesis, Mutagenesis, Impairment of Fertility==== | ||
Carcinogenesis: Oral carcinogenicity studies were conducted in mice (100 weeks) and rats (106 weeks) at doses of up to 125 mg/kg/day. Plasma exposures (AUC) at the highest dose tested were approximately 150 (mice) and 240 times (rats) that in humans at the maximum recommended daily dose (MRDD) of 30 mg/day. There was no evidence of an increase in tumor incidence related to rizatriptan in either species. | |||
Mutagenesis: Rizatriptan was neither mutagenic nor clastogenic in a battery of in vitro and in vivo genetic toxicity studies, including: the microbial mutagenesis (Ames) assay, in vitro mammalian cell mutagenesis and chromosomal aberration assays, and the in vivochromosomal aberration assay in mouse. | |||
Impairment of Fertility: In a fertility study in rats, altered estrus cyclicity and delays in time to mating were observed in females treated orally with 100 mg/kg/day rizatriptan. The no-effect dose was 10 mg/kg/day (approximately 15 times the human exposure at the MRDD). There were no other fertility-related effects in the female rats. There was no impairment of fertility or reproductive performance in male rats treated with up to 250 mg/kg/day (approximately 550 times the human exposure at the MRDD).<ref name="dailymed.nlm.nih.gov">{{Cite web | last = | first = | title = MAXALT (RIZATRIPTAN BENZOATE) TABLET MAXALT-MLT (RIZATRIPTAN BENZOATE) TABLET, ORALLY DISINTEGRATING [MERCK SHARP & DOHME CORP.] | url = http://dailymed.nlm.nih.gov/dailymed/lookup.cfm?setid=d93286f5-99f7-4dc5-aa9d-ad73ab8490db | publisher = | date = | accessdate = }}</ref> | |||
==References== | ==References== | ||
Latest revision as of 07:22, 10 February 2014
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Nonclinical Toxicology
13.1 Carcinogenesis, Mutagenesis, Impairment of Fertility
Carcinogenesis: Oral carcinogenicity studies were conducted in mice (100 weeks) and rats (106 weeks) at doses of up to 125 mg/kg/day. Plasma exposures (AUC) at the highest dose tested were approximately 150 (mice) and 240 times (rats) that in humans at the maximum recommended daily dose (MRDD) of 30 mg/day. There was no evidence of an increase in tumor incidence related to rizatriptan in either species.
Mutagenesis: Rizatriptan was neither mutagenic nor clastogenic in a battery of in vitro and in vivo genetic toxicity studies, including: the microbial mutagenesis (Ames) assay, in vitro mammalian cell mutagenesis and chromosomal aberration assays, and the in vivochromosomal aberration assay in mouse.
Impairment of Fertility: In a fertility study in rats, altered estrus cyclicity and delays in time to mating were observed in females treated orally with 100 mg/kg/day rizatriptan. The no-effect dose was 10 mg/kg/day (approximately 15 times the human exposure at the MRDD). There were no other fertility-related effects in the female rats. There was no impairment of fertility or reproductive performance in male rats treated with up to 250 mg/kg/day (approximately 550 times the human exposure at the MRDD).[1]
References
Adapted from the FDA Package Insert.