“In the 3-month repeat-dose SC toxicity study, elranatamab doses of 0.3, 3, and 6 mg/kg/week (total of 14 doses) showed adverse clinical signs that correlated with decreased body weight and food consumption and contributed to mortality.”
✓ VerifiedFDA multi-discipline review, p. 48Source ↗
Pivotal GLP studies
GLP cynomolgus: 1-month IV (0.01-0.3 mg/kg/wk), 1-month SC (0.3 mg/kg/wk), 3-month SC (0.3, 3, 6 mg/kg/wk); no recovery
“Recovery was not assessed in any of the general toxicology studies.”
✓ VerifiedFDA multi-discipline review, p. 48Source ↗
Route in tox
IV and SC (SC is clinical route, used for longest study)
“Intravenous administration was originally assessed before subcutaneous administration was chosen as the clinical route.”
✓ VerifiedFDA multi-discipline review, p. 56Source ↗