DARTAcceptedBeyond the letter
No reproductive and developmental toxicity studies, including none in the pharmacologically relevant monkey; weight-of-evidence assessment instead
Why: Given in combination with lenalidomide, a known teratogen; waiver supported by prior FDA agreement and CHMP scientific advice · Other reason
“Based on a prior agreement with the FDA, the Applicant did not conduct reproductive and developmental toxicity studies with tafasitamab since tafasitamab is administered in combination with lenalidomide, a known teratogen and embryo-fetal toxicant.”
✓ VerifiedFDA multi-discipline review, p. 35Source ↗ “This is considered acceptable for the present indication with treatment in combination with Lenalidomide, a drug known to be teratogenic or causing embryo-fetal lethality.”
✓ VerifiedEMA assessment report, p. 41Source ↗ CarcinogenicityAccepted
No carcinogenicity studies; carcinogenic potential, raised by secondary malignancies in the pivotal trial, addressed by comparison with rituximab
Why: Similar B-cell-depleting mode of action to rituximab; rituximab data show no increased risk of secondary malignancies · Class precedent · Within the guideline
“A comparison with rituximab was provided, which is considered acceptable due to the similar mode of action to deplete B-cells via ADCC and ADCP. Based on available rituximab data, no increased risk for SPMs induced by tafasitamab was expected.”
✓ VerifiedEMA assessment report, p. 41Source ↗