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 (local administration, minimal systemic entry, mature autologous cells)
“Per the applicant, studies were not conducted to evaluate this safety endpoint because the product is administered locally in the knee with minimal to no product entry systemically.”
✓ VerifiedFDA pharmacology/toxicology review, p. 24Source ↗
Safety pharmacology
Not conducted
“No safety pharmacology studies were conducted.”
✓ VerifiedFDA pharmacology/toxicology review, p. 23Source ↗
Genotox: Ames
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.
Genotox: in vitro mammalian
Chondrocyte expansion did not change karyotype in vitro; negative
“In vitro studies have shown that the expansion process for chondrocytes does not induce changes to the cellular karyotype.”
Collagen membrane: four in vitro and in vivo genotoxicity studies non-mutagenic (assays not named)
“Four studies ( in vitro and in vivo ) were conducted to assess the genotoxic potential of the collagen membrane. The results from these studies demonstrated that the collagen membrane was non-mutagenic.”
Not conducted; no tumors in the one-year horse study
“No tumors were detected in the one-year animal study, thus indicating that tumor formation is unlikely.”
✓ VerifiedFDA pharmacology/toxicology review, p. 24Source ↗
Carcinogenicity timing
Not required: local implantation site, no systemic distribution, membrane not genotoxic
“The applicant did not conduct carcinogenicity or developmental and reproductive toxicity studies. This is acceptable considering the local anatomic site of MACI implantation, the absence of systemic MACI distribution following administration”
✓ VerifiedFDA pharmacology/toxicology review, p. 3Source ↗
hERG / QT
Not conducted (no safety pharmacology studies)
“No safety pharmacology studies were conducted.”
✓ VerifiedFDA pharmacology/toxicology review, p. 23Source ↗