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Long-Term Tolerability of Sumatriptan Nasal Spray in Adolescent Patients With Migraine

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Objective.—This 1-year, open-label, multicenter study was designed to assess the long-term tolerability and efficacy of sumatriptan nasal spray 20 mg in adolescent patients with migraine.

Methods.—A prospective, multicenter, open-label study was conducted in patients aged 12 to 17 years who were allowed to treat an unlimited number of migraines at severe, moderate, or mild pain intensity with sumatriptan nasal spray for up to 1 year. All patients started the study at the 20-mg dose of sumatriptan nasal spray. Dose could be adjusted downward to 5 mg at the discretion of the investigator to optimize therapy.

Results.—A total of 484 adolescent migraineurs treated 4676 migraines with sumatriptan nasal spray 20 mg (3593 during the first 6 months and 1083 during the second 6 months). A total of 3940 migraines and 699 migraines were treated with one and two 20-mg doses of sumatriptan nasal spray, respectively. Only 10 patients (treating 42 migraines) took the 5-mg dose of sumatriptan nasal spray. The overall percentage of migraines treated with either one 20-mg dose or one, two, or three 20-mg doses with at least 1 drug-related adverse event was 19%. The most common specific drug-related adverse event was unpleasant taste, reported in 17% of migraines. No other single drug-related adverse event was reported in more than 1% of migraines over the 1-year treatment period. When unpleasant taste was excluded from the adverse-event tabulations, the percentages of migraines with at least 1 drug-related adverse event after one or one, two, or three 20-mg doses declined to 4% and 3%, respectively. No patient experienced any drug-related changes in 12-lead ECGs, vital signs, or nasal assessments; and no clinically meaningful changes in clinical laboratory values were observed. Across all migraines with evaluable efficacy data (n = 4334), headache relief was reported in 43% of migraines at 1 hour and in 59% at 2 hours after dosing with sumatriptan nasal spray 20 mg. Of the 2561 migraines with headache relief 2 hours postdose, headache recurrence was reported within 24 hours of initial dosing in 7% of migraines. None of the efficacy or tolerability results varied as a function of time in the study (ie, first 6 months vs. second 6 months).

Conclusion.—Sumatriptan nasal spray 20 mg is generally well tolerated and may be beneficial during long-term use by adolescent migraineurs ages 12 to 17 years.

(Headache 2004;44:969-977)
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Keywords: adolescents; migraine; sumatriptan

Document Type: Research Article

Publication date: November 1, 2004

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