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  • Title: Prevalence of migraine and response to sumatriptan in patients self-reporting tension/stress headache.
    Author: Kaniecki R, Ruoff G, Smith T, Barrett PS, Ames MH, Byrd S, Kori S.
    Journal: Curr Med Res Opin; 2006 Aug; 22(8):1535-44. PubMed ID: 16870078.
    Abstract:
    OBJECTIVE: This study was conducted to evaluate the prevalence of migraine and its responsiveness to migraine-specific therapy in patients with self-reported tension-type headache. METHODS: Patients were adults (n = 423) consulting one of 54 North American study sites including primary care clinics, neurology clinics, and headache clinics. The study comprised an initial diagnosis phase to determine the headache diagnosis of patients entering the study with self-reported tension/stress headache, including that previously diagnosed by a health care provider. Patients reporting tension/stress headache were evaluated and diagnosed as having migraine with or without aura, probable migraine, tension-type headache, or another headache type. Exclusion criteria included prior diagnosis of migraine or probable migraine and the presence of headache for at least 15 days monthly during either of the 2 months before screening. The initial phase was followed by a randomized, double-blind treatment phase to evaluate the efficacy of sumatriptan 100 mg tablets for the treatment of a single migraine attack in those meeting International Headache Society (IHS) criteria for migraine during the diagnosis phase. RESULTS: Of 423 patients reporting tension/stress headache at study entry, 84% (n = 357) were diagnosed at the clinic visit as fulfilling IHS criteria for migraine without aura or migraine with aura, and 65% (n = 276) were diagnosed with migraine only (i.e., with no other concurrent headache diagnosis). Three hundred thirty-two (332) patients entered the double-blind treatment phase. Headache relief rates 2h post-dose, the primary efficacy endpoint, did not significantly differ between sumatriptan and placebo (p = 0.099). However, improvements were significantly (p < 0.05) greater with sumatriptan than placebo on several other headache-related efficacy measures. CONCLUSIONS: Migraine headache may go unrecognized in patients with self-reported tension headache. Among patients having self-reported tension headache and diagnosed with migraine during the study, response to acute treatment with sumatriptan was inconclusive. Improvement with sumatriptan versus placebo was observed for some measures and not for others. The results should be interpreted in the context of study limitations including use of patient self-reports to assess headache diagnosis and possible lack of representativeness arising from the predominantly white sample.
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