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Review of botulinum toxin type A for the prophylactic treatment of chronic daily headache

Authors Evers S

Published 15 January 2008 Volume 2007:3(6) Pages 761—764

DOI https://doi.org/10.2147/NDT.S1665


Stefan Evers

Department of Neurology, University of Münster, Münster, Germany

Abstract: Botulinum toxin A is increasingly used in the treatment of idiopathic and symptomatic headache disorders. However, only few controlled trials are available and many trials can hardly be compared to each other because of different endpoints and different trial designs. In particular chronic daily headache, which is defined as an idiopathic headache occurring on more than 15 days per month for at least 3 months and a daily duration of at least 4 hours, is considered as a headache disorder with possible efficacy of botulinum toxin A. For the prophylactic treatment of chronic tension-type headache and chronic migraine, no sufficient positive evidence for a successful treatment can be obtained from randomized, double-blind, and placebo-controlled trials to date. For the treatment of chronic daily headache including medication overuse headache, there is some positive evidence for efficacy in a subgroup of patients. To date, the majority of double-blind and placebo-controlled studies do not suggest that botulinum toxin A is efficacious in the treatment of chronic idiopathic headache disorders. However, it is possible that some subgroups of patients with chronic daily headache will benefit from a long-term treatment with botulinum toxin A.

Keywords: botulinum toxin A, chronic daily headache, chronic tension-type headache, chronic migraine

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