Active clinical trials for "Migraine Disorders"

Migraine is a common disabling primary headache disorder. Epidemiological studies have documented its high prevalence and high socio-economic and personal impacts. Migraine affects more than 20% of the French population. However, the physiopathology of migraine is always partially known. Cortical spreading depression (CSD) is the widely accepted as the electrophysiologic substrate of migraine aura. CSD is a slowly propagating wave of transient neuronal and glial depolarization. The near death experience (NDE) is a rare, but well known phenomenon. NDE are profound psychic experiences commonly occuring in life-threatening conditions. Among the neurological hypotheses, epilepsy, temporal lobe disorders , REM-sleep intrusion have been discussed. However, the role of DCE has never been discussed. The goals of this study are : to see if there is an epidemiological link between NDE and migraine/ to specify if NDE was followed by a migrainous headache.

Nowadays, headache has been considered as one of the top global disabling medical conditions.1 Migraine is an important type of headache, and one of the chronic multifaceted neuro-inflammatory disorders.2 It is characterized by recurrent throbbing headache pain that typically affects one side of the head, and is often accompanied by nausea and disturbed vision. Migraine headache accounts for 1.4% of all neurological and mental disorders.2 It was reported that the estimated lifetime prevalence of migraine ranged 12%-18%.3 Chronic migraine is defined by the International Classification of Headache Disorders - ICHD-3 as having headaches for ≥ 15 days per month, for ≥ 3 months , which ≥ 8 days/month are linked to migraine. Chronic migraine affects around 1%-4% of the population and chronic tension-type headache about 2.2%.4 Approximately 25%-50% of those affected also have medication overuse headache, which has a population prevalence of 1%.5 Chronic headache is a severely disabling long-term condition, with higher symptom ,frequency and severity than episodic headache.6

Patients who report that exposure to bright light or strenuous physical activity will induce migraine aura will be provoked using one or both of these methods. Followingly the patients will be examined by functional MRI. Íf the patients develop migraine headache, MR angiography will be performed as well. The primary study hypothesis is that the functional MRI signal will show features similar to those of the electrophysiological phenomenon of cortical spreading depression.

Substudy 1 Blood-brain barrier breakdown has been proposed in migraine patients. Our hypothesis that we will test in this study is that the blood-brain barrier breaks down during migraine attacks but not out side attacks using MRI. Substudy 2 Altered cerebral resting-state functional connectivity networks have been reported in migraine patients outside migraine attacks. What happens during migraine attacks has never been investigated. The hypothesis we will test is that pain related networks are affected during spontaneous attacks using functional MRI. Substudy 3 Old studies report that cerebral blood flow (CBF) is altered in patients with migraine with aura, but not in those without aura. We hypothesize that CBF is altered regionally during attacks, which we will investigate in this study using arterial spin labeling (ASL). Substudy 4 Structural changes using voxel-based morphometry (VBM) of the brain have been suggested but never investigated during migraine attacks. Our hypothesis is that pain related structures show altered VBM during spontaneous migraine attacks.

This study aims to describe the psychological and social characteristics of patients suffering from primary headache and monitored in Neurology department of Besançon University Hospital

The purpose of this study is to identify a core fMRI feature that determines migrainous brain and plastic fMRI features that changes with longitudinal courses of migraine.

This study seeks to correlate microbiome sequencing data with information provided by patients and their medical records.

The purpose of the study is to determine by the use of non-invasive magnetic stimulation if the medication Topiramate adjusts the excitability of the migraine sufferer's brain. Previous studies have shown the migraine sufferer's brain is more excitable. The magnetic stimulation device has given us a way to look at excitability and to see if it changes at the same time that a headache diary shows if the pattern or severity of headaches changes with the administration of the drug Topiramate. It is expected that as migraine sufferers have fewer headaches with topiramate the testing with magnetic stimulation will show that their brains are less excitable and that if the topiramate does not change the character of headaches then the pattern of excitabilty would not change from the baseline test before medication is started.

Children and adolescents that visited the pediatric neurology clinic at the Bnai Zion medical center do to migraine or TTH headache between the years 2007-2010 were reevaluated. We used a structured headache questionnaire through a phone interview with the patients and their caregivers. Data regarding demographics, the patients' and families' medical history, and headache history, past and current (age at onset, location, quality, frequency, duration of episodes, aura, associated symptoms and treatment) were collected.

Migraine is very frequent (15% of the general population). During attacks, many subjects with migraine have allodynia (pain induced by normally non-painful stimuli), photophobia (hypersensitivity to light), phonophobia (hypersensitivity to sound) or osmophobia (hypersensitivity to odours). The goal of the present study is to validate a new questionnaire made of 4 parts evaluating the presence of these 4 types of hypersensitivity, both during or between migraine attacks. It will allow to look for associations of these 4 symptoms and association of hypersensitivity with patients' or migraine's characteristics.