“Based on ICH S6 (Guideline for the Safety Evaluation of Biotechnology-Derived Pharmaceuticals) guidelines, no genetic toxicology studies were conducted with ixekizumab.”
✓ VerifiedFDA pharmacology/toxicology review, p. 27Source ↗
Carcinogenicity
Not conducted; weight of evidence including literature judged carcinogenic potential low
“Thirdly, the literature does not suggest an increased risk for tumorigenicity in relation to neutralisation of IL-17. Overall, the carcinogenic potential of ixekizumab was considered to be low.”
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
Monkey fertility, EFD and PPND up to 50 mg/kg/week: no treatment-related effects; neonatal deaths at 5 and 50 mg/kg/week
“No treatment-related effects were observed during these studies. Neonatal deaths occurred in the infants of two monkeys administered ixekizumab at 5 mg/kg/week and two monkeys administered ixekizumab at 50 mg/kg/week.”
✓ VerifiedFDA pharmacology/toxicology review, p. 6Source ↗
Safety pharmacology
Incorporated into repeat-dose monkey studies; no cardiovascular, respiratory or CNS effects
“indicated that ixekizumab did not affect cardiovascular, respiratory or central nervous system functions.”
✓ VerifiedFDA pharmacology/toxicology review, p. 17Source ↗
Genotox: Ames
Not conducted (ICH S6)
“Based on ICH S6 (Guideline for the Safety Evaluation of Biotechnology-Derived Pharmaceuticals) guidelines, no genetic toxicology studies were conducted with ixekizumab.”
✓ VerifiedFDA pharmacology/toxicology review, p. 27Source ↗
Genotox: in vitro mammalian
Not conducted (ICH S6)
“Based on ICH S6 (Guideline for the Safety Evaluation of Biotechnology-Derived Pharmaceuticals) guidelines, no genetic toxicology studies were conducted with ixekizumab.”
✓ VerifiedFDA pharmacology/toxicology review, p. 27Source ↗
Genotox: in vivo
Not conducted (ICH S6)
“Based on ICH S6 (Guideline for the Safety Evaluation of Biotechnology-Derived Pharmaceuticals) guidelines, no genetic toxicology studies were conducted with ixekizumab.”
✓ VerifiedFDA pharmacology/toxicology review, p. 27Source ↗
Carcinogenicity model
Not conducted; literature review of IL-17A inhibition used instead
“No genetic toxicity or carcinogenicity studies have been conducted with ixekizumab. The sponsor has conducted a literature review to assess the carcinogenic potential of inhibiting IL-17A which correlates to potential effects after treatment with ixekizumab.”
✓ VerifiedFDA pharmacology/toxicology review, p. 45Source ↗
Carcinogenicity timing
Not required; no nonclinical carcinogenicity studies recommended
“No nonclinical studies to address the carcinogenic potential of ixekizumab are recommended.”
✓ VerifiedFDA pharmacology/toxicology review, p. 45Source ↗
hERG / QT
No hERG assay; no effects on heart rate, QT or QTc in 39-week monkey ECGs
“No effects on heart rate or on QT or corrected-QT intervals. All ECGs were qualitatively and quantitatively within normal limits and no arrhythmias were found.”