Cardiovascular risk of chronic CGRP antagonism, as CGRP is a potent vasodilator
“Because CGRP is known to be involved in regulation of the cardiovascular system and to be a potent vasodilator, concerns were raised regarding potential adverse effects of chronic CGRP antagonism in humans”
✓ VerifiedFDA pharmacology/toxicology review, p. 5Source ↗
Anti-drug antibodies: animals
Monkey ADA coincided with lower drug levels in some animals, only at low doses; kinetics at relevant doses not compromised
“ADAs detected coincidental with lower drug concentrations in some animals; effects on systemic exposure were only apparent at low doses so an assessment of the kinetics at pharmacologically and toxicologically relevant doses was not compromised.”
6.2% (70 mg monthly; 2 neutralizing) and 2.6% (140 mg monthly; none neutralizing) in controlled studies
“In controlled studies with AIMOVIG [see Clinical Studies (14) ] , the incidence of anti-erenumab-aooe antibody development was 6.2% (48/778) in patients receiving AIMOVIG 70 mg once monthly (2 of whom had in vitro neutralizing activity) and 2.6% (13/504) in patients receiving AIMOVIG 140 mg once monthly (none of whom had in vitro neutralizing activity).”
In vitro whole-blood cytokine release far below alemtuzumab/TGN1412 controls; no effects on monkey TDAR, lymphocyte subsets or serum cytokines; ADA in some monkeys