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5-HTIF Receptor Agonist

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Selective Seratonin 1F (5-HT(1F)) Receptor Agonist LY334370 for Acute Migraine: A Randomised Controlled Trial

Goldstein DJ, Roon KI, Offen WW, Ramadan NM, Phebus LA, Johnson KW, Schaus JM, Ferrari MD

Lancet 2001;358:1230–1234

BACKGROUND: Triptans (5-HT(1B/1D) receptor agonists) are effective drugs for acute migraine, but the side-effect of coronary vasoconstriction restricts their use in patients who are at risk of coronary artery disease. We have studied the efficacy of LY334370, a selective serotonin 1F (5-HT(1F)) receptor agonist with preclinical efficacy and no vasoconstriction, for migraine relief.

METHODS: We gave LY334370 (20, 60, or 200 mg) or placebo to 99 outpatients with moderate or severe migraine headaches in a double blind, parallel group study. We measured efficacy by sustained response, response at 2 h, pain free at 2 h, and sustained pain free.

RESULTS: The proportions of patients with defined endpoints for placebo and LY334370 20, 60, and 200 mg, respectively, were: sustained response, two of 26 (8%), three of 22 (14%), 11 of 30 (37%), and 11 of 21 (52%) (dose response p < 0.001); response, five of 26 (19%), four of 22 (18%), 15 of 30 (50%), and 15 of 21 (71%) (p < 0.001); pain free, one of 26 (4%), none of 22, eight of 30 (27%), and eight of 21 (38%) (p = 0.001); sustained pain free, one of 26 (4%), none of 22, seven of 30 (23%), and seven of 21 (33%) (p = 0.002); recurrence rates, one of five (20%), none of four, four of 15 (27%), and three of 15 (20%). More patients given LY334370 than placebo reported asthenia, somnolence, and dizziness.

CONCLUSION: Our findings show that LY334370 is effective in treatment of acute migraine through selective trigeminovascular neuronal inhibition.
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Document Type: Research Article

Publication date: 2004-07-01

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