Active clinical trials for "Migraine Disorders"

The hypothesis of this study is that Prostaglandin E2 (PGE2) induces headache and dilatation of brain vessels in migraine patients without aura.

The study is designed to detect adverse drug reactions (particularly clinically significant adverse drug reactions) occurring in clinical settings, to examine factors likely to affect the safety and efficacy of sumatriptan tablet, and to discuss the need of special investigation and postmarketing clinical study. A special focus was placed on the investigation of occurrence of "ischaemic heart disease-like events including arrhythmia, angina pectoris, and myocardial infarction" in the present study.

Migraine headaches lead to absenteeism and can restrict on-the-job productivity (presenteeism) for employed migraine sufferers. Effective migraine treatments should reduce migraine-associated productivity losses and return migraineurs to normal functioning within a few hours of treatment. This study is an observational, multicenter, parallel-group study of employed patients who have been prescribed either a combination product containing sumatriptan and naproxen sodium (SumaRT/Nap) or oral triptan monotherapy to treat acute migraine attacks. The study will report results from 4 migraine attacks per patient. Eligible migraine attacks will be defined as those preceded by a 24-hour, headache-free period with onset between 2 hours prior to the start of and 4 hours before the end of a scheduled work shift. Data will be collected at time of treatment and hourly until the end of the attack or the end of the workday. To estimate baseline productivity, data will be collected from 50 randomly selected subjects during a migraine-free workday. The primary objective of this study is to compare migraine-related, work productivity losses (absenteeism and presenteeism) reported by patients treated with SumaRT/Nap to losses reported by patients treated with triptan monotherapy. The null hypothesis is that no difference will be observed between the number of hours of productivity lost for patients who treat workday migraine attacks with SumaRT/Nap and patients who treat migraine attacks with an oral triptan alone. The alternative hypotheses are that patients in either treatment group experience significantly fewer hours of lost productivity associated with migraine compared to patients in the other treatment group. The secondary objectives of this study are to measure the time between treatment and return to patient-reported, normal functioning; to evaluate rescue medication use after initial treatment; to measure total productivity loss following treatment at hourly time points; and to estimate the probability of absenteeism when a migraine begins before or during the workday. The null hypotheses for the secondary endpoints are that no differences will be observed between the results reported by patients treating with SumaRT/Nap and patients treating with triptan monotherapy. The alternative hypotheses are that either treatment is superior to the other for each endpoint.

The purpose of this retrospective claims database study was to compare the change in migraine-related prescription (i.e. NSAIDs, Opioids, Ergots) utilization among migraine suffers following initiation of Treximet ™ (sumatriptan/naproxen) compared with subjects initiating treatment with other orally available triptans. The study was used to validate the migraine-related prescription utilization patterns predicted by the Treximet ™ Budget Impact Model. The SourceLx dataset from the family of Wolters Kluwer databases was used for this analysis. The database contains 30% of prescription claims filled in the United States (US), approximately 160 million patient lives. The data has broad representative coverage at both the geographic and payment levels.

The purpose is to compare, using functional magnetic resonance imagery in resting-state, the connectivity of the hypothalamus in 2 groups of migraineurs. The first group is composed of chronic migraineurs, studied outside a migraine attack and is compared to gender- and age- matched episodic migraineurs with very few attacks per month and studied in the attack-free period. The primary outcome will be the connectivity index of the hypothalamus to brainstem areas activated during migraine attacks and to the trigeminal-cervical complex.

In this study the investigators will investigate the following hypothesis that hypoxia induce migraine headache and migraine aura the aura phase is associated with a spreading reduction in cerebral blood flow the migraine headache is associated with dilatation of intra- and extracerebral arteries the migraine headache is associated with changes in brain metabolism the pre-ictal stage of a migraine attack with aura is associated with specific patterns in neural activity.

This is a post authorization observational study to monitor the utilization practices and describe the safety profile of BOTOX® in clinical practice for the prophylactic treatment of headaches in adult patients with chronic migraine.

The investigators hypothesize that genes that play a role in menstrual migraine can be identified using a well characterised migraine population and a comprehensive genome-wide association scan approach. The aim of the study is to identify genes, genetic regions, and the effect of hormones on expression profiles in women with menstrual migraine compared to a control population with no personal or first-degree family history of migraine. In this case control study, saliva samples will be taken from 300 cases and 300 controls for DNA analysis. Blood samples from 30 cases and 30 controls will be taken during the follicular phase as well as the luteal phase of the menstrual cycle for ribonucleic acid (RNA) analysis.

The purpose of this migraine prevention study is to evaluate the efficacy and safety of AST-726 in moderate to severe migraine patients at one of two doses compared to placebo and compared to a baseline period as measured by a reduction in the number of migraine days.

An outstanding scientific question, that merits further investigation, is whether dilation of intracranial arteries is implicated in the pathogenesis of cephalic pain in migraine. Here, we hypothesize that experimentally-induced dilation of intracranial arteries using intravenous infusion of levcromakalim (a potent vasodilator) induces cephalic pain with migraine-like features in people with migraine, who prior to the infusion are administered erenumab (anti-calcitonin gene-related peptide (CGRP) receptor monoclonal antibody).