“Toxicology studies were only conducted in cynomolgus monkeys due to the limited cross reactivity profile of mogamulizumab.”
✓ VerifiedFDA multi-discipline review, p. 23Source ↗
Why that species
Binds lymphocytes only from humans and cynomolgus monkeys (identical CCR4 epitope sequence); no binding in dog, rat, mouse
“Biotinylated mogamulizumab specifically bound peripheral lymphocytes from humans and cynomolgus monkeys only; most the specific binding was in the CD4-positive subset. Similar binding in humans and cynomolgus monkeys is expected given the CCR4 amino acid sequence at the mogamulizumab binding region is identical in humans and cynomolgus monkeys.”
✓ VerifiedFDA multi-discipline review, p. 25Source ↗
Surrogate molecule
No surrogate; the clinical antibody was tested in cynomolgus monkeys
“Toxicology studies were only conducted in cynomolgus monkeys due to the limited cross reactivity profile of mogamulizumab.”
✓ VerifiedFDA multi-discipline review, p. 23Source ↗