Chronic Cluster Headache Clinical Trial
Official title:
Efficacy of Modified Atkins Ketogenic Diet in Chronic Cluster Headache. A Prospective Case Series
Atkins diet is a nutritional regimen characterized by ad libitum protein and fat intake, but
carbohydrate restriction. It is followed by millions of people around the word as a
life-style, but in the last years was proposed as a treatment for the epilepsy, by its
capacity to induce the state of ketosis.
Since Authors observed that ketosis could be also useful in migraine, and migraine shares
some pathophysiological features with cluster headache, The aim of the study is to test the
efficacy of Atkins diet in Cluster Headache by an open label one harm observational study.
The Atkins diet is a ketogenic high-fat, low-carbohydrate diet for long adopted as lifestyle
by people that dislike have an high carbohydrate intake. This nutritional life style seems to
account for more energy in the daily activity and an easy weight control. In the last years,
researchers showed that a modified Atkins diet (MAD) can be useful to treat drug resistant
epilepsy, maybe by the induction of ketogenesis.
Ketogenesis, ketone-body formation, is a physiologic phenomenon also observed in patients
following low-carbohydrate high fat diets. Different Authors evidenced a protective effect of
ketone bodies also on migraine that shares some pathophysiological features with cluster
headache (CH).
CH is the worst form of headache, also called as "suicide headache"; in particular its
unremitting form, called Chronic CH (CCH) is regarded as a clinical challenge for
neurologist, if refractory to pharmacological treatments. So far, no data are available about
a beneficial effect of ketogenesis in CH. However, the beta hydroxybutyrate (BHB) has a
chemical formula similar to gamma hydroxybutyrate (GHB) that has shown to be effective in CH.
Moreover, ketosis has also a beneficial effect on hypothalamic dysfunctions that are shared
by some form of epilepsy and CH.
Aim of this study is verify in an open label observational study if a MAD can be useful in
the treatment of CCH. In case of positive outcome, the results could be used as preliminary
data to design a double blind versus placebo study, to asses definitively if ketogenesis is
really able to prevent/avoid headache attacks in CH.
Methods: By the Italian branch of the Organization for the Understanding of Cluster Headache
(OUCH), there will be recruited CCH volunteers that accept to modify their diet according to
Atkins Diet for at least three months.
Headache attack frequency will be collected on specific headache-calendars and a comparison
between the pre-diet phase and the during-the-diet- phase will be performed.
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