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 applicable: cells not genetically modified
“No genotoxicity, carcinogenicity, and developmental and reproductive toxicity (DART) studies were conducted for TREGZI.”
✓ VerifiedFDA pharmacology/toxicology review, p. 3Source ↗
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
Not conducted
“No animal reproductive and developmental toxicity studies have been conducted with TREGZI to assess whether it can cause fetal harm when administered to a pregnant woman.”
Not conducted (omission acceptable given product characteristics and clinical safety data)
“No nonclinical studies were conducted to evaluate safety pharmacology of TREGZI.”
✓ VerifiedFDA pharmacology/toxicology review, p. 36Source ↗
Genotox: Ames
Not conducted
“No nonclinical studies were conducted to evaluate genotoxicity of TREGZI. Given the characteristics and biological activity of TREGZI, together with the clinical safety data for TREGZI, this omission is acceptable.”
✓ VerifiedFDA pharmacology/toxicology review, p. 37Source ↗
Genotox: in vitro mammalian
Not conducted
“No nonclinical studies were conducted to evaluate genotoxicity of TREGZI. Given the characteristics and biological activity of TREGZI, together with the clinical safety data for TREGZI, this omission is acceptable.”
✓ VerifiedFDA pharmacology/toxicology review, p. 37Source ↗
Genotox: in vivo
Not conducted
“No nonclinical studies were conducted to evaluate genotoxicity of TREGZI. Given the characteristics and biological activity of TREGZI, together with the clinical safety data for TREGZI, this omission is acceptable.”
✓ VerifiedFDA pharmacology/toxicology review, p. 37Source ↗
Carcinogenicity model
Not conducted; omission acceptable given product characteristics, biological activity and clinical safety data
“No nonclinical studies were conducted to evaluate carcinogenicity/tumorigenicity of TREGZI. Given the characteristics and biological activity of TREGZI, together with the clinical safety data for TREGZI, this omission is acceptable.”
✓ VerifiedFDA pharmacology/toxicology review, p. 37Source ↗
Carcinogenicity timing
Not required (not warranted based on product characteristics, biological activity and safety profile)
“No genotoxicity, carcinogenicity, and developmental and reproductive toxicity (DART) studies were conducted for TREGZI. These studies are not warranted based on the product characteristics, biological activity, and safety profile.”
✓ VerifiedFDA pharmacology/toxicology review, p. 3Source ↗
hERG / QT
Not conducted (no safety pharmacology studies; omission acceptable)
“No nonclinical studies were conducted to evaluate safety pharmacology of TREGZI. Given the characteristics and biological activity of TREGZI, together with the clinical safety data for TREGZI, this omission is acceptable.”
✓ VerifiedFDA pharmacology/toxicology review, p. 36Source ↗