Anti-CGRP mAb-associated urticaria in this case series was delayed and likely non-immunoglobulin E (non-IgE)-mediated. Our experience supports that in selected patients with delayed urticaria, individualized management, including H1 antihistamine premedication, may allow continuation of effective migraine prophylaxis. Larger cohorts are needed to identify risk factors and to inform general management recommendations.
Berger et al. (Sun,) studied this question.