Active clinical trials for "Migraine Disorders"

The purpose of this study is to determine the effects of antihistamine (Clemastin) on migraines triggered by pituitary adenylate cyclase activating peptide-38 (PACAP38) as well as on biochemical markers for mast cell degranulation in migraine patients. Also, to investigate the occurrence of migraine in migraine patients after infusion of PACAP38 in lower dosages than previously investigated. As this has never been done before it is unknown how a lower dose of PACAP38 will affect 1) the incidence of migraine attacks, 2) the accompanying symptoms, 3) head pain characteristics, and 4) debut and duration of migraine attacks. Our three hypotheses are: Pre-treatment with Clemastin reduces PACAP38 sensitivity and inhibits development of migraine in migraine patients. Clemastin inhibits the increase in plasma concentration of TNF-alpha, histamine and tryptase after PACAP38-infusion. PACAP38 in lower dosages (4, 6 and 8 pmol/kg/min) induces migraine in migraine patients.

This study will evaluate the efficacy, safety and tolerability of prophylactic (preventative) treatment with BOTOX® (onabotulinumtoxinA) compared to topiramate in adults with chronic migraine.

This is a prospective, non-randomized and unblinded study designed to generate preliminary data to assess the effect of a new portable non-invasive brainstem stimulator to treat migraine headaches in patients with episodic migraine headaches.

The purpose of this study is to determine whether topiramate effective in treating dizziness symptoms that are associated with migraine headaches.

Subjects enrolled at 2 investigative sites will complete 3 visits. Following Visit 1, during a 1-month Baseline Period, subjects will treat with their usual medication and document any warning signs (Prodrome pre-headache) that a migraine will occur. Following randomization (like a flip of the coin) at Visit 2, subjects will treat daily with topiramate or during Prodrome with frovatriptan. Subjects complete a 2-month Treatment Period before exit at Visit 3.This study will compare the effectiveness of daily treatment vs. treatment during the pre-headache phase for prevention of migraine.

Assess safety and efficacy of Transcranial Magnetic Stimulation (TMS) for the treatment of migraine with aura The hypothesis is that TMS treatments delivered to the occipital cortex of the brain can stop or interrupt the spreading cortical brain activity that causes or contributes to the migraine headache. Two TMS treatments at an intensity of <1 Tesla for ~500 microseconds, approximately 30 seconds apart, may stop the aura and prevent the subsequent headache.

The purpose of this study is to assess the long-term safety and effectiveness of topiramate for the prevention of headaches in adults with chronic migraine. Topiramate has been approved to prevent migraine headaches.

The purpose of this study is to determine whether 120 Unit, and 240 unit of botulinum toxin A are effective in the treatment of migraine without aura prophylaxis.

We hypothesized that infusion of VIP may induce headache in healthy subjects and that VIP induced headache may be associated with dilatation of intra- and extracerebral blood vessels. To test this hypothesis, we performed a double blind placebo controlled crossover study in normal human volunteers and studied the effect on headache and cerebral as well as hemodynamic parameters.

Nitric oxide (NO) is likely to be involved in the development of migraine headache. Nitric oxide synthase (NOS) is an important chemical involved in the production of NO. Reduction of NOS, and therefore NO, may be an effective technique for the prevention of migraine headache. GW274150 is a highly selective inhibitor of NOS and offers the potential of anti-inflammatory activity in migraine through a novel mechanism of action. The intent of this study is to investigate the safety and efficacy of GW274150 for the prophylactic treatment of migraine headache.