Not conducted (DART); male mouse germline transmission/mating studies showed no F1 transmission or fertility effects
“There were no ROCTAVIAN-related adverse changes on mating rates, maternal behavior, and fertility indices.”
✓ VerifiedFDA summary basis for approval, p. 12Source ↗
Safety pharmacology
Not conducted; no CNS/respiratory/CV/renal findings in toxicity studies
“Safety pharmacology studies were not performed because BMN 270 components (capsid, vector DNA, corresponding RNA and hFVIII-SQ protein) are not expected to impact major organ systems’ (central nervous system, cardiovascular, renal or respiratory) function.”
betibeglogene autotemcel · HBB T87Q (LVV, ex vivo HSC)
Insertional mutagenesis assessed instead of standard genotox: in vitro immortalization assay (low potential) and integration site analysis (no clonal dominance)