Not conducted; antibodies unable to interact with genetic material
“No genotoxicity studies of donanemab were conducted because antibodies are generally unable to interact with genetic material.”
✓ VerifiedFDA pharmacology/toxicology review, p. 18Source ↗
Carcinogenicity
Not conducted; target absent in wild-type rodents; FDA waived after carcinogenicity assessment
“Carcinogenicity studies of donanemab were not conducted because its target, human AβN3pE-x peptide, is not present in wild-type rodents, and carcinogenicity studies in transgenic rodents are not feasible.”
✓ VerifiedFDA pharmacology/toxicology review, p. 18Source ↗
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
Not conducted; not required given age of Alzheimer's population
“Developmental and reproductive toxicity studies were not conducted based on the age of the indicated population.”
✓ VerifiedFDA pharmacology/toxicology review, p. 20Source ↗
Safety pharmacology
Incorporated into 6-week monkey study; no effects on body temperature, cardiovascular, neurological or respiratory function
“Safety pharmacology was assessed in the 6-week toxicity study of donanemab in cynomolgus monkey. There were no donanemab-related effects on body temperature, cardiovascular function, neurological examinations, or respiratory function.”
✓ VerifiedFDA pharmacology/toxicology review, p. 15Source ↗
Genotox: Ames
Not conducted (antibodies do not interact with genetic material)
“No genotoxicity studies of donanemab were conducted because antibodies are generally unable to interact with genetic material.”
✓ VerifiedFDA pharmacology/toxicology review, p. 18Source ↗
Genotox: in vitro mammalian
Not conducted (antibodies do not interact with genetic material)
“No genotoxicity studies of donanemab were conducted because antibodies are generally unable to interact with genetic material.”
✓ VerifiedFDA pharmacology/toxicology review, p. 18Source ↗
Genotox: in vivo
Not conducted (antibodies do not interact with genetic material)
“No genotoxicity studies of donanemab were conducted because antibodies are generally unable to interact with genetic material.”
✓ VerifiedFDA pharmacology/toxicology review, p. 18Source ↗
Carcinogenicity model
Not conducted: no pharmacologically relevant rodent species
“Carcinogenicity studies of donanemab were not conducted because wild-type rat and mouse are not pharmacologically relevant species.”
✓ VerifiedFDA pharmacology/toxicology review, p. 20Source ↗
Carcinogenicity timing
Not required: FDA informed sponsor carcinogenicity studies not needed for BLA
“Following review of an initial carcinogenicity assessment, the sponsor was informed that carcinogenicity studies of donanemab would not be required to support a BLA”
✓ VerifiedFDA pharmacology/toxicology review, p. 18Source ↗
hERG / QT
No hERG assay; no effects on cardiovascular, neurological or respiratory function in 6-week monkey study
“Safety pharmacology was assessed in the 6-week toxicity study of donanemab in cynomolgus monkey. There were no donanemab-related effects on body temperature, cardiovascular function, neurological examinations, or respiratory function.”
✓ VerifiedFDA pharmacology/toxicology review, p. 15Source ↗