Not conducted; waived (no erenumab activity in rodents; no hyperplasia or neoplasia in toxicology studies)
“Carcinogenicity studies were waived, based on the lack of erenumab activity in rodents, histopathological data from the submitted toxicology studies showing no carcinogenic risk factors (i.e. hyperplasia or neoplasia)”
✓ VerifiedFDA pharmacology/toxicology review, p. 33Source ↗
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.
Not conducted; rodent assays not feasible (no rodent activity) and monkey not appropriate for tumorigenic risk
“These assays are not feasible for AMG 334 because it is a monoclonal antibody that does not have biologic activity in rodents. AMG 334 has biologic activity in the cynomolgus monkey, but this species is not an appropriate model for evaluation of tumorigenic risk.”
Not required: carcinogenicity study waiver granted
“A carcinogenicity study waiver was granted because erenumab is not active in rodents and the literature and submitted toxicity studies indicate that erenumab has a low potential for carcinogenicity.”
✓ VerifiedFDA pharmacology/toxicology review, p. 14Source ↗
hERG / QT
No hERG; monkey telemetry: no arrhythmias, ECG waveform, QRS or QTc changes
“There were no AMG 334-related arrhythmias or changes in ECG waveform. There were no AMG 334-related changes in QRS duration or QTc interval.”