Negative in Ames, CHL chromosomal aberration and rat bone marrow micronucleus assays
“Vonoprazan was not genotoxic in the bacterial reverse mutation assay, an in vitro chromosomal aberration assay in Chinese Hamster lung cells, and an in vivo rat bone marrow micronucleus test.”
2-year mouse and rat: hepatocellular adenomas/carcinomas and gastric neuroendocrine cell tumors
“In a 2-year carcinogenicity study in mice and rats, hepatocellular adenomas and carcinomas and drug-related increases in benign and malignant neuroendocrine cell tumors in the stomachs were noted.”
Not reported in the public reviews. Reviewers summarise selectively, so this usually means it wasn't discussed publicly, not that it wasn't studied.
Instead of genotoxicity
Not stated in public reviews
Not reported in the public reviews. Reviewers summarise selectively, so this usually means it wasn't discussed publicly, not that it wasn't studied.
DRG histopathology
Not stated in public reviews
Not reported in the public reviews. Reviewers summarise selectively, so this usually means it wasn't discussed publicly, not that it wasn't studied.
Reproductive & developmental
Rat EFD: ventricular septal defect, malpositioned subclavian artery, tail and anal abnormalities only at 300 mg/kg/day
“In the embryofetal development study in rats, fetal abnormalities were limited to the 300 mg/kg/day dose and included ventricular septal defect and mal-positioned subclavian artery in fetuses, as well as tail abnormalities and small anal opening.”
hERG IC50 4.8 mcg/mL (>100-fold human Cmax); no dog cardiovascular effects up to 20 mg/kg
“The IC50 for the inhibitory effect of vonoprazan on human Ether-à-go-go-Related Gene (hERG) current was 4.8 mcg/mL, which is more than 100-fold higher than the mean maximum plasma concentration (Cmax) for the 20 mg dose vonoprazan in humans.”
“Vonoprazan was not genotoxic in the bacterial reverse mutation assay, an in vitro chromosomal aberration assay in Chinese Hamster lung cells, and an in vivo rat bone marrow micronucleus test.”
Chromosomal aberration in Chinese hamster lung cells: negative
“Vonoprazan was not genotoxic in the bacterial reverse mutation assay, an in vitro chromosomal aberration assay in Chinese Hamster lung cells, and an in vivo rat bone marrow micronucleus test.”
“Vonoprazan was not genotoxic in the bacterial reverse mutation assay, an in vitro chromosomal aberration assay in Chinese Hamster lung cells, and an in vivo rat bone marrow micronucleus test.”
“In a 2-year carcinogenicity study in mice and rats, hepatocellular adenomas and carcinomas and drug-related increases in benign and malignant neuroendocrine cell tumors in the stomachs were noted.”
2-year mouse and 2-year rat studies completed before the marketing application
“In a 2-year carcinogenicity study in mice and rats, hepatocellular adenomas and carcinomas and drug-related increases in benign and malignant neuroendocrine cell tumors in the stomachs were noted.”
hERG IC50 4.8 mcg/mL, >100-fold above human Cmax at 20 mg
“The IC50 for the inhibitory effect of vonoprazan on human Ether-à-go-go-Related Gene (hERG) current was 4.8 mcg/mL, which is more than 100-fold higher than the mean maximum plasma concentration (Cmax) for the 20 mg dose vonoprazan in humans.”
Not genotoxic overall: Ames negative; in vitro chromosome aberration positive without (not with) metabolic activation; rat micronucleus and comet negative