HD-EEG Connectivity Changes in Migraine Patients Undergoing Treatment With Anti-CGRP mAbs

Migraine is a leading cause of disability with an estimated prevalence of 12% in Europe. The headache field witnessed a breakthrough since the introduction of specific preventive therapies which proved effective and well tolerated, namely the monoclonal antibodies directed against the Calcitonin Gene Related Peptide (CGRP) pathway (mAbs). Their mechanism of action is still debated. Several Authors claimed that, despite the site of action is peripheral (namely outside of the blood brain barrier), the resulting action may take place at central level. Another valuable hypothesis is that the clinical modifications resulting from mAbs treatment may induce functional modulation of several brain areas. With these premises, the primary aim of the study is to evaluate changes in functional connectivity in patients undergoing preventive mAbs treatment using high density EEG.