“FDA agrees that genetic toxicology studies are not needed to support the use of penpulimab per ICH S6.”
✓ VerifiedFDA multi-discipline review, p. 57Source ↗
Carcinogenicity
Not conducted (advanced cancer, ICH S9); penpulimab not active in rodents
“Carcinogenicity studies were not conducted with penpulimab, which is consistent with its use in patients with advanced malignancies (see the ICH Guidance S9).”
✓ VerifiedFDA multi-discipline review, p. 57Source ↗
Instead of carcinogenicity
Not stated in public reviews
Not reported in the public reviews. Reviewers summarise selectively, so this usually means it wasn't discussed publicly, not that it wasn't studied.
Instead of genotoxicity
Not stated in public reviews
Not reported in the public reviews. Reviewers summarise selectively, so this usually means it wasn't discussed publicly, not that it wasn't studied.
DRG histopathology
Not stated in public reviews
Not reported in the public reviews. Reviewers summarise selectively, so this usually means it wasn't discussed publicly, not that it wasn't studied.
Reproductive & developmental
No dedicated studies; literature-based assessment of reproductive toxicity used instead
“No reproductive or embryo-fetal developmental toxicology studies were conducted with penpulimab. Rather, the Applicant provided a literature-based assessment of the potential reproductive toxicity of penpulimab”
✓ VerifiedFDA multi-discipline review, p. 42Source ↗
Safety pharmacology
Incorporated into repeat-dose monkey studies; no effects on body temperature, respiration, oxygen saturation, ECG or blood pressure
“There were no treatment-related effects on body temperature, respiratory rate, blood oxygen saturation, electrocardiograms, or blood pressure found in the repeat dose toxicology study.”
✓ VerifiedFDA multi-discipline review, p. 49Source ↗
Genotox: Ames
Not conducted (ICH S6)
“FDA agrees that genetic toxicology studies are not needed to support the use of penpulimab per ICH S6.”
✓ VerifiedFDA multi-discipline review, p. 57Source ↗
Genotox: in vitro mammalian
Not conducted (ICH S6)
“FDA agrees that genetic toxicology studies are not needed to support the use of penpulimab per ICH S6.”
✓ VerifiedFDA multi-discipline review, p. 57Source ↗
Genotox: in vivo
Not conducted (ICH S6)
“FDA agrees that genetic toxicology studies are not needed to support the use of penpulimab per ICH S6.”
✓ VerifiedFDA multi-discipline review, p. 57Source ↗
Carcinogenicity model
Not conducted; rodent bioassays inappropriate as penpulimab is not active in rodents
“however rodent bioassays are inappropriate, as penpulimab does not appear to be active in rodents.”
✓ VerifiedFDA multi-discipline review, p. 57Source ↗
Carcinogenicity timing
Not required for the advanced cancer indication (ICH S9)
“FDA agrees that carcinogenicity studies are not needed to support the use of penpulimab in the currently proposed indication per ICH S9.”
✓ VerifiedFDA multi-discipline review, p. 57Source ↗
hERG / QT
No hERG assay; no ECG or blood pressure effects in repeat-dose monkey studies
“There were no treatment-related effects on body temperature, respiratory rate, blood oxygen saturation, electrocardiograms, or blood pressure found in the repeat dose toxicology study.”
✓ VerifiedFDA multi-discipline review, p. 49Source ↗