Rat and cynomolgus monkey (chronic study in monkey only)
“Because the shorter duration studies in rat and monkey demonstrated no toxicity, the chronic study was conducted only in cynomolgus monkey.”
✓ VerifiedFDA pharmacology/toxicology review, p. 71Source ↗
Why that species
Pharmacologically active in rat, rabbit, monkey and human in binding and functional in vitro assays
“Fremanezumab is pharmacologically active in rat, rabbit, monkey, and human, as characterized in a series of binding and functional in vitro assays.”
✓ VerifiedFDA pharmacology/toxicology review, p. 4Source ↗
Surrogate molecule
No surrogate; the clinical antibody was tested in rat and cynomolgus monkey
“General toxicology studies were conducted in rat and cynomolgus monkeys. In general, fremanezumab was well tolerated, with no significant adverse effects in either species.”
✓ VerifiedFDA pharmacology/toxicology review, p. 71Source ↗