Potential association of cluster headache with certain COVID-19 vaccines: An assessment from the pharmacovigilance databases

Headache Elise K Van Obberghen , Laura Parigny , Nouha Ben-Othman , Elliot Ewig , Milou-Daniel Drici , Alexandre O Gérard , Sophie Gautier , Michel Lanteri-Minet  Abstract Objectives/background: The main objective of our study was to assess the potential association between coronavirus disease 2019 (COVID-19) vaccination and cluster headache (CH) using a pharmacovigilance