Biomarker and Genetic Predictors of Erenumab Treatment Response

This is a phase 4 open-label study aiming to explore the relationship between clinical response to erenumab and genetic biomarkers. Subjects with episodic or chronic migraine will be treated with Erenumab 70mg or 140mg for a 4-week baseline/screening period, followed by a 24-week treatment period. Subjects will collect migraine-related parameters daily using an eDiary and blood samples will be collected for biomarker research. All analysis will be descriptive in nature.