Not applicable for a protein; Ames and in vitro chromosomal aberration assays negative
“Genetic toxicity studies were not applicable for this therapeutic biologic protein though reslizumab was negative in two in vitro assays.”
✓ VerifiedFDA pharmacology/toxicology review, p. 2Source ↗
Carcinogenicity
Tg.rasH2 transgenic mouse study up to 500 mg/kg IV every two weeks: no drug-related neoplasms
“A transgenic mouse (Tg.rasH2) carcinogenicity study was conducted with dose concurrence by the Executive Carcinogenicity Assessment Committee (ECAC). No drug-related neoplasms were found after dosing up to 500 mg/kg IV once every two weeks.”
✓ VerifiedFDA pharmacology/toxicology review, p. 2Source ↗
Reproductive & developmental
No effects on fertility or development up to 50 mg/kg IV; about 6-fold exposure margin in mouse studies
“No effects on fertility or development parameters were identified at doses up to 50 mg/kg IV; exposure margins of approximately 6-fold were available in the mouse studies.”
✓ VerifiedFDA pharmacology/toxicology review, p. 3Source ↗
Safety pharmacology
Rat and monkey studies at 100 and 25 mg/kg: no cardiovascular, CNS or gastrointestinal effects
“Reslizumab administered iv at a dose of 100 mg/kg (600 mg/m2) to rats (DS-2014-080) and 25 mg/kg (300 mg/m2) to monkeys (SN96333) did not elicit effects on the most important parameters related to organ functions (cardiovascular, CNS, or gastrointestinal).”