“The administration of anti-mouse PD-1 antibody 4H2 resulted in delayed tumor progression in the MC38 colon carcinoma, Sa1N fibrosarcoma, and J558”
✓ VerifiedFDA pharmacology/toxicology review, p. 91Source ↗
Why that model
Nivolumab does not bind rodent PD-1, so a murine surrogate was developed
“Because nivolumab was unable to bind to PD-1 from rodents, the Applicant developed a murine surrogate anti-PD-1 antibody to investigate the effects of PD-1 pathway inhibition on tumor growth.”
✓ VerifiedFDA pharmacology/toxicology review, p. 13Source ↗
Reviewer's view of the efficacy data
EMA: nonclinical pharmacology, PK and toxicology studies adequate and acceptable
“In conclusion, the non-clinical studies (pharmacology, pharmacokinetics and toxicology), submitted for the marketing authorisation application for nivolumab, were considered adequate and acceptable for the assessment of non-clinical aspects.”