Headache Prevalence and Phenotype in Myelin Oligodendrocyte Glycoprotein Antibody -Associated Disease (MOGAD)

Myelin Oligodendrocyte Glycoprotein Antibody-Associated Disease (MOGAD) is an inflammatory demyelinating disorder of the central nervous system characterized by antibodies targeting myelin oligodendrocyte glycoprotein (MOG). Although the disease most commonly presents with optic neuritis, myelitis, or acute disseminated encephalomyelitis, headache has increasingly been reported as a potentially relevant and disabling symptom. However, the prevalence and clinical characteristics of headache in MOGAD remain poorly defined.

The purpose of this monocentric ambispective observational study is to evaluate the prevalence and clinical phenotype of headache in adult patients with MOGAD. The study aims to answer the following research questions: How common is headache in patients with MOGAD, what are its clinical characteristics, and does it show any correlation with any specific disease features?

The primary objective is to estimate the prevalence of acute and/or chronic headache in patients with MOGAD. Secondary objectives include describing headache characteristics (location, duration, intensity, associated symptoms, and response to treatment), assessing the presence and evolution of pre-existing primary headache disorders, and exploring potential associations between headache and laboratory or neuroradiological findings, including anti-MOG antibody titers, cerebrospinal fluid (CSF) oligoclonal bands, and the location of inflammatory or demyelinating lesions on MRI.

Approximately 25 adult patients with MOGAD followed at the Multiple Sclerosis Center and Headache Clinic of the Fondazione Policlinico A. Gemelli IRCCS will be included. Clinical, laboratory, and neuroradiological data will be collected retrospectively and prospectively from medical records.