“Genetic toxicity studies have not been conducted with anifrolumab. Genetic toxicity studies are generally not applicable for biotechnology-derived pharmaceuticals such as anifrolumab, as discussed in the ICH S6(R1) guidance document.”
✓ VerifiedFDA multi-discipline review, p. 47Source ↗
Carcinogenicity
Not conducted: anifrolumab does not bind murine IFNAR1 or inhibit murine IFN-α
“Carcinogenicity studies with anifrolumab were not conducted. Anifrolumab does not bind to murine IFNAR1 and does not inhibit the biological activity of murine IFN-α.”
No stand-alone studies; ECG and blood pressure in 4- and 39-week monkey studies, no adverse CV findings; CNS/respiratory via clinical signs
“No stand-alone safety pharmacology studies were conducted with anifrolumab. The effect of anifrolumab on the CV system was evaluated in a GLP-compliant 39-week general IV toxicity study in monkeys (Study# 7140-129).”
✓ VerifiedFDA multi-discipline review, p. 43Source ↗
Genotox: Ames
Not conducted (ICH S6)
“Genetic toxicity studies have not been conducted with anifrolumab. Genetic toxicity studies are generally not applicable for biotechnology-derived pharmaceuticals such as anifrolumab, as discussed in the ICH S6(R1) guidance document.”
✓ VerifiedFDA multi-discipline review, p. 47Source ↗
Genotox: in vitro mammalian
Not conducted (ICH S6)
“Genetic toxicity studies have not been conducted with anifrolumab. Genetic toxicity studies are generally not applicable for biotechnology-derived pharmaceuticals such as anifrolumab, as discussed in the ICH S6(R1) guidance document.”
✓ VerifiedFDA multi-discipline review, p. 47Source ↗
Genotox: in vivo
Not conducted (ICH S6)
“Genetic toxicity studies have not been conducted with anifrolumab. Genetic toxicity studies are generally not applicable for biotechnology-derived pharmaceuticals such as anifrolumab, as discussed in the ICH S6(R1) guidance document.”
✓ VerifiedFDA multi-discipline review, p. 47Source ↗
Carcinogenicity model
Not conducted; weight of evidence (literature on IFNAR-deficient mice and chronic monkey studies)
“Instead, a weight of evidence approach consisting of data from chronic toxicity studies with anifrolumab and literature data was presented to address the risk of carcinogenicity.”
Not required; risk addressed in the RMP, no further animal studies necessary
“Based on the weight of evidence, treatment with anifrolumab is likely associated with an increased carcinogenicity risk that has been followed throughout the clinical development programme and addressed in the RMP (see Section 2.7), and thus, no further animal studies are necessary (SmPC section 5.3).”
No adverse ECG or blood pressure findings in 39-week monkey study (no hERG assay)
“Electrocardiography (ECG) parameters and blood pressure (BP) parameters were measured once during the predose phase, on Days 3 and 276 of the dosing phase, and on Day 83 of the recovery phase for these animals after they were anesthetized with ketamine. No drug-related adverse CV findings were noted.”
✓ VerifiedFDA multi-discipline review, p. 41Source ↗