✓ VerifiedFDA pharmacology/toxicology review, p. 10Source ↗
Carcinogenicity
No carcinogenicity study; tumorigenicity assessed in nude mice and in vitro, no tumors
“No tumor formation was observed for the 20-week study duration.”
✓ VerifiedFDA summary basis for approval, p. 12Source ↗
Instead of carcinogenicity
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.
Instead of genotoxicity
Not applicable: cells not genetically modified
“No genotoxicity studies were conducted.”
✓ VerifiedFDA pharmacology/toxicology review, p. 10Source ↗
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 DART studies were conducted.”
✓ VerifiedFDA pharmacology/toxicology review, p. 10Source ↗
Safety pharmacology
Not conducted
“No nonclinical safety pharmacology studies were conducted”
✓ VerifiedFDA pharmacology/toxicology review, p. 5Source ↗
Genotox: Ames
Not conducted
“No genotoxicity studies were conducted.”
✓ VerifiedFDA pharmacology/toxicology review, p. 10Source ↗
Genotox: in vitro mammalian
Not conducted
“No genotoxicity studies were conducted.”
✓ VerifiedFDA pharmacology/toxicology review, p. 10Source ↗
Genotox: in vivo
Not conducted
“No genotoxicity studies were conducted.”
✓ VerifiedFDA pharmacology/toxicology review, p. 10Source ↗
Carcinogenicity model
Tumorigenicity only: topical StrataGraft on immunodeficient mouse wounds 20 weeks and s.c. NIKS keratinocytes 23 weeks; no tumors
“No tumor formation was observed for the 20-week study duration. In addition, following a single subcutaneous injection of NIKS® keratinocytes in immunodeficient mice, no tumor formation was detected for the 23-week study duration.”
✓ VerifiedFDA pharmacology/toxicology review, p. 2Source ↗
Carcinogenicity timing
No standard carcinogenicity study; immunodeficient-mouse tumorigenicity studies (20-week topical, 23-week s.c. NIKS cells) completed before the marketing application, no tumors
“No tumor formation was observed for the 20-week study duration. In addition, following a single subcutaneous injection of NIKS keratinocytes in immunodeficient mice, no tumor formation was detected for the 23-week study duration.”
✓ VerifiedFDA summary basis for approval, p. 12Source ↗
hERG / QT
Not conducted (no safety pharmacology studies)
“No nonclinical safety pharmacology studies were conducted”
✓ VerifiedFDA pharmacology/toxicology review, p. 5Source ↗