Related Experiment Video
Updated: Apr 16, 2026

Investigating Migraine-Like Behavior Using Light Aversion in Mice
Published on: August 11, 2021
CGRP mechanism antagonists and migraine management
Nazia Karsan1, Peter J Goadsby
1Headache Group, Department of Basic and Clinical Neuroscience, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK.
Abstract:
Migraine is a complex disorder of the brain that is common and highly disabling. As understanding of the neural pathways has advanced, and it has become clear that the vascular hypothesis does not explain the disorder, new therapeutic avenues have arisen. One such target is calcitonin gene-related peptide (CGRP)-based mechanisms. CGRP is found within the trigeminovascular nociceptive system widely from the trigeminal ganglion to second-order and third-order neurons and in regulatory areas in the brainstem. Studies have shown CGRP is released during severe migraine attacks and the reversal of the attack with effective triptan treatment normalizes those levels. CGRP administration triggers migraine in patients, and CGRP receptor antagonists have been shown to abort migraine. Here, we review the current state of CGRP mechanism antagonist therapy as its research and development is increasing in migraine therapeutics. We discuss several recent trials, highlighting the evidence base behind these novel drugs, and their potential future contribution to migraine management.
Related Concept Videos
Chemotherapy-Induced Nausea and Vomiting: Neurokinin-1 Receptor Antagonists
Drugs Acting on Autonomic Ganglia: Blockers
Nondepolarizing (Competitive) Neuromuscular Blockers: Mechanism of Action
Competitive antagonists prevent acetylcholine from binding to its receptor, inhibiting membrane depolarization. Without conformational changes or intrinsic...
Chemotherapy-Induced Nausea and Vomiting: 5-HT3 Receptor Antagonists
Direct-Acting Cholinergic Agonists: Pharmacological Actions
Ligand-Gated Ion Channel Receptor: Gating Mechanism

