Active clinical trials for "Headache"

Cluster headache is a primary headache disorder characterized by attacks of unilateral headache of short duration and severe pain intensity. There is an unmet need to understand the underlying disease mechanisms that will ultimately lead to the development of disease-specific medicines. Until now, it has been suggested that the calcitonin gene-related peptide (CGRP) plays a major role in the initiation of a cluster headache attack, possibly involving the ATP-sensitive potassium channels. The current study aims to determine whether the opening of ATP-sensitive potassium channels triggers cluster headache attacks in patients with cluster headache.

The primary objective is to determine whether inflammatory markers, such as C-Reactive Protein (CRP), Calcitonin Gene-Related Peptide (CGRP), Vasoactive Intestinal Polypeptide (VIP), or Substance P (SP) are reduced in patients having a migraine headache when treated with Imitrex or Treximet. The secondary objective is to determine the effects of Imitrex and Treximet on C-Reactive Protein (CRP) in patients with active migraine headaches.

The objective of the study is to demonstrate the long-term safety and performance of the ATI Neurostimulation System when used for stimulation of the sphenopalatine ganglion (SPG) in cluster headache subjects.

In this study the investigators will research the hypothesis that the drug Acetazolamide induce headache and dilation of cerebral arteries and increase the cerebral blood flow in the areas of the brain supplied by these arteries.

This study will evaluate the effectiveness and benefit of treatment with onabotulinumtoxinA in Chronic Migraine patients who have received a minimum of 7 treatment cycles.

The purpose of this study is to determine whether Quince Oxymel is effective in the prevention of Migraine attacks in patients with simultaneous upper gastrointestinal dysfunction.

The purpose of this study is to determine whether increased pressure in the head is elevated in people who suffer from High Altitude Headache. We hypothesise that head pressure will be elevated in people with High Altitude Headache.

Headache during fasting is a known entity in the scientific literature. The prevalence of such a headache is high and in a study conducted in Israel was found in 60% of people with a previous predilection for headache. A prior study showed a significant decrease in the incidence of fasting headache using rofecoxib, but the drug has been taken off the market. The goal of this project is to evaluate the efficacy of etoricoxib as treatment taken before the fast- a COX-2 inhibitor with a relatively long half life to prevent fasting induced headache. The study will be a prospective double blind placebo controlled trial using adult volunteers with a history of a fasting headache who will be abstaining from food and drink on Yom Kippur. The study hypothesis is that treatment with etoricoxib prior to a 25 hour fast will decrease the incidence of fasting headache.

Intraject is a needle-free, single use, disposable, subcutaneous delivery system pre-filled with 6mg Sumatriptan to be used by patients to treat acute migraine treatment. Study participation will last one month and include 2 doctor visits and 2-4 phone calls.

Medication Overuse Headache (MOH) is an illness affecting about 1,5 % of the general population. It is characterized by chronic headache occurring for at least 15 days a month, by a use of antimigraine drugs during at least 3 months for more than 10 days a month (for ergots, triptans, opiate derivates and combined analgesics) or for more than 15 days a month (for simple analgesics). The chronic headache must have occurred during the period of antimigraine drug abuse and the headache must have returned to its episodical pattern after withdrawal of antimigraine drugs. But, about 50% of the MOH patients will relapse during the first year following the antimigraine drugs withdrawal. The pathophysiology of MOH is still largely unknown, and the role of antimigraine drug abuse in the transformation from migraine through MOH is not fully understood.