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VIZIMPRO®Nonclinical Toxicology (dacomitinib)

13 NONCLINICAL TOXICOLOGY

13.1 Carcinogenesis, Mutagenesis, Impairment of Fertility

Carcinogenicity studies have not been performed with VIZIMPRO.

Dacomitinib was not mutagenic in a bacterial reverse mutation (Ames) assay or clastogenic in an in vitro human lymphocyte chromosome aberration assay or clastogenic or aneugenic in an in vivo rat bone marrow micronucleus assay.

Daily oral administration of dacomitinib at doses ≥ 0.5 mg/kg/day to female rats (approximately 0.14 times the exposure based on AUC at the 45 mg human dose) resulted in reversible epithelial atrophy in the cervix and vagina. Oral administration of dacomitinib at 2 mg/kg/day to male rats (approximately 0.6 times the human exposure based on AUC at the 45 mg clinical dose) resulted in reversible decreased secretion in the prostate gland.

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