Medical College of Wisconsin
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Intranasal civamide for the acute treatment of migraine headache. Cephalalgia 2000 Jul;20(6):597-602 PMID: 11075845

Pubmed ID

11075845

Abstract

The objective of this study was to investigate the safety and efficacy of intranasal civamide for the acute treatment of migraine headache with or without aura. Civamide is a vanilloid receptor agonist and neuronal calcium channel blocker that inhibits the neuronal release of excitatory neurotransmitters (e.g. calcitonin gene-related peptide (CGRP) and substance P (SP)) and depletes the neurones of the trigeminal plexus of their neurotransmitter content. Applied intranasally, the release of neurotransmitters to meningeal and dural blood vessels should be decreased, along with the resultant vasodilatation, plasma extravasation, and histamine/serotonin release. Subsequent migraine headache pain may also be diminished. Thirty-four patients were enrolled into a double-blind study of intranasal civamide, and randomized to receive a single dose of either 20 microg or 150 microg of civamide, for the treatment of a single migraine headache, with or without aura, of moderate to severe pain. At 2 h post-dose, 55.6% of patients treated with either dose had a decrease in pain severity, with 22.2% of patients being pain-free. At 4 h post-dose, 72.7% of patients treated with either dose had a decrease in pain severity, with 33.0% of patients being pain-free. Adverse events were similar for both dosages, with 91.2% of patients experiencing nasal burning and 44.1% of patients experiencing lacrimation. No systemic side-effects were observed. Based upon the results of this study, intranasal civamide may be effective in the acute treatment of migraine headache. Given civamide's proposed mechanism of action, intranasal civamide should be substantially more effective for prophylaxis than acute treatment of migraine. A study evaluating its efficacy in prophylaxis of migraine is currently planned.

Author List

Diamond S, Freitag F, Phillips SB, Bernstein JE, Saper JR

Author

Frederick G. Freitag DO Associate Professor in the Neurology department at Medical College of Wisconsin




Scopus

2-s2.0-0034455035   58 Citations

MESH terms used to index this publication - Major topics in bold

Acute Disease
Administration, Intranasal
Adult
Analgesics
Calcium Channel Blockers
Capsaicin
Double-Blind Method
Female
Humans
Male
Middle Aged
Migraine Disorders
Neurotransmitter Agents
Patient Satisfaction
Receptors, Drug
Safety
Treatment Outcome
Trigeminal Nerve
Vasodilation
jenkins-FCD Prod-331 a335b1a6d1e9c32173c9534e6f6ff51494143916