Not conducted (antibodies unable to interact with genetic material)
“No genotoxicity studies of satralizumab were conducted because antibodies are generally unable to interact with genetic material.”
✓ VerifiedFDA pharmacology/toxicology review, p. 41Source ↗
Carcinogenicity
Not conducted (no rodent IL-6R binding; mouse homolog not feasible); human malignancy risk unknown
“Carcinogenicity studies of satralizumab were not conducted because satralizumab does not bind to rat or mouse IL-6R, and the use of a mouse homolog antibody was determined not to be feasible because of immunogenicity.”
✓ VerifiedFDA pharmacology/toxicology review, p. 41Source ↗
Reproductive & developmental
Monkey ePPND (0, 2, 50 mg/kg/week SC): dose-dependent reduction in infant antibody responses to antigen challenge
“In the ePPND study, administration of satralizumab (0, 2, and 50 mg/kg/week SC) to pregnant females resulted in a dose-dependent reduction in the antibody responses to antigenic challenge in infants.”
✓ VerifiedFDA pharmacology/toxicology review, p. 7Source ↗
Safety pharmacology
Incorporated into pivotal monkey toxicology studies
“No stand-alone safety pharmacology studies of satralizumab were submitted. Safety pharmacology assessments were incorporated into the pivotal toxicology studies of satralizumab in monkey.”
✓ VerifiedFDA pharmacology/toxicology review, p. 27Source ↗