“Genetic toxicology studies are not applicable to monoclonal antibodies and were not conducted with dupilumab based on ICH S6 guidance”
✓ VerifiedFDA pharmacology/toxicology review, p. 21Source ↗
Carcinogenicity
Not conducted; assessment based on literature on the IL-4/IL-13 pathway in tumour development and nonclinical data for REGN646 and REGN1103
“No carcinogenicity studies were conducted. However, an assessment of the carcinogenic potential of dupilumab was made based on literature data on the role of the IL-4/IL-13 pathway in tumour development and on non-clinical data for both REGN646 and REGN1103.”
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
Mouse fertility study (surrogate) and monkey ePPND study: no adverse effects
“The effect of IL-4Rα blockade on reproductive and developmental toxicity was evaluated in a fertility study in mice which and in an ePPND study in cynomolgus monkeys. No adverse effects were noted.”
“Genetic toxicology studies are not applicable to monoclonal antibodies and were not conducted with dupilumab based on ICH S6 guidance”
✓ VerifiedFDA pharmacology/toxicology review, p. 21Source ↗
Genotox: in vitro mammalian
Not conducted (ICH S6)
“Genetic toxicology studies are not applicable to monoclonal antibodies and were not conducted with dupilumab based on ICH S6 guidance”
✓ VerifiedFDA pharmacology/toxicology review, p. 21Source ↗
Genotox: in vivo
Not conducted (ICH S6)
“Genetic toxicology studies are not applicable to monoclonal antibodies and were not conducted with dupilumab based on ICH S6 guidance”
✓ VerifiedFDA pharmacology/toxicology review, p. 21Source ↗
Carcinogenicity model
Not conducted; labeling and postmarketing malignancy monitoring judged sufficient
“Adequate labeling based on published literature and animal data from the sponsor as well as post-marketing monitoring of malignancy in patients should be sufficient at this time.”
✓ VerifiedFDA pharmacology/toxicology review, p. 22Source ↗
Carcinogenicity timing
Not required (Exec CAC concurrence, May 5, 2014)
“The Exec CAC committee members provided their concurrence via email that nonclinical carcinogenicity studies are not needed for dupilumab on May 5, 2014.”
✓ VerifiedFDA pharmacology/toxicology review, p. 22Source ↗
hERG / QT
No blood pressure or ECG effects in monkey repeat-dose studies with REGN646 up to 100 mg/kg/week
“no effects on blood pressure and ECGs were detected in the repeat-dose toxicity studies in monkeys administered REGN646 IV doses up to 100 mg/kg/week for 5 weeks or 25 mg/kg/week for 6 months or weekly SC doses up to 100 mg/kg/week for 6 months.”
✓ VerifiedFDA pharmacology/toxicology review, p. 16Source ↗