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Clinical Trial Summary

One third of migraine patients experience aura, i.e. dramatic, transient neurological symptoms, most often in the form of visual disturbances, that usually appear before the onset of migraine headache. The likely underlying mechanism of aura is known as cortical spreading depression, a wave of changes in electrical activity that slowly spreads in the outermost layer of the brain. It is currently not known what causes the aura to initiate in patients or what the relationship is between aura and migraine headache, e.g. if treatment targeted at aura mechanisms will prevent subsequent headache. Due to the short-lasting and unpredictable nature of aura, the only possible approach for systematic investigations is to experimentally trigger aura, but currently no method for aura-triggering is available.

The overall goal of the proposed project is to reveal the earliest mechanisms of the migraine attack by investigating the initiating factors of aura in the migraine brain.

Current animal evidence indicates that infusion of endothelin-1 (ET-1), a naturally occurring signaling molecule released from blood vessels, is safe and very likely to trigger migraine aura in patients.

In this project the investigators aim to study the effects of ET-1 on the human brain, to investigate aura-inducing effects of ET-1 in patients and to develop a safe and reliable method for the experimental induction of migraine aura using ET-1.


Clinical Trial Description

n/a


Study Design


Related Conditions & MeSH terms


NCT number NCT02906085
Study type Interventional
Source Glostrup University Hospital, Copenhagen
Contact
Status Active, not recruiting
Phase N/A
Start date October 2016
Completion date December 2019

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