Monoclonal Antibody Duration of REsponse in MIgraine After Treatment Interruption

Observational analytic study with a prospective cohort design. Patients with episodic and chronic migraine that have responded to monoclonal antibodies (mAbs) versus calcitonin gene-related peptide (CGRP) or its receptor with positive response will be included. A headache diary will be completed in a daily basis. The primary outcome will be the time elapsed between the discontinuation of the monoclonal antibody and the return to the clinical situation at the moment of the mAbs onset. The potential variables that may be associated with a more sustained benefit will be explored.