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  • Title: A double-blind, randomized, placebo-controlled, single-dose study of the cyclooxygenase-2 inhibitor, GW406381, as a treatment for acute migraine.
    Author: Wentz AL, Jimenez TB, Dixon RM, Aurora SK, Gold M, CXA20008 Study Investigators.
    Journal: Eur J Neurol; 2008 Apr; 15(4):420-7. PubMed ID: 18312401.
    Abstract:
    The objective of the present study was to explore the clinical efficacy and tolerability of GW406381, a cyclooxygenase-2 (COX-2) inhibitor with relatively high CNS penetration, in acute migraine. This was a double-blind, single-dose study of GW406381 compared with placebo and naproxen sodium compared with placebo (protocol number CXA20008). Three hundred and thirty-seven subjects were randomized 1:1:1 to GW406381 (70 mg), naproxen sodium (825 mg), or placebo for the treatment of one migraine headache of moderate or severe intensity in a potential 8-week period. The primary end-point was the proportion of subjects with headache relief [reduction in headache severity score from pre-dose 2 (moderate) or 3 (severe) to 0 (no pain) or 1 (mild)] at 2 h post-dose for GW406381 compared with placebo. Significantly higher proportions of subjects treated with GW406381 (50%, P = 0.032) or naproxen sodium (56%, P = 0.005) than with placebo (35%) reported headache relief at 2 h post-dose. Additional significant benefits were observed on many secondary outcomes, including proportions of subjects pain-free, for both GW406381 and naproxen sodium treatment compared with placebo. Both active treatments were well tolerated. Single-dose GW406381 (70 mg) and naproxen sodium (825 mg) were effective and well tolerated in the treatment of acute migraine.
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