“The Applicant conducted repeat-dose toxicology studies in mice and Cynomolgus monkeys.”
✓ VerifiedFDA pharmacology/toxicology review, p. 55Source ↗
Why that species
Binds human, murine and cynomolgus monkey PD-L1
“In vitro pharmacology studies demonstrated that atezolizumab binds to human, murine, and Cynomolgus monkey PD-L1”
✓ VerifiedFDA pharmacology/toxicology review, p. 12Source ↗
Surrogate molecule
Yes: mouse IgG2a chimeric antibodies with atezolizumab binding region, used to minimize immunogenicity in mouse studies
“To minimize immunogenicity in mice, the Applicant generated two mouse IgG2a chimeric antibodies (PRO304397 and PRO314483), containing the binding region of atezolizumab.”
✓ VerifiedFDA pharmacology/toxicology review, p. 54Source ↗