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  • Title: Patient-selected dosing in a six-month open-label study evaluating oral sumatriptan in the acute treatment of migraine. Sumatriptan Tablets S2CM10 Study Group.
    Author: Dowson AJ, Ashford EA, Prendergast S, Hassani H, Roberts GW, Flöter T, Szczudlik A.
    Journal: Int J Clin Pract Suppl; 1999 Aug; 105():25-33. PubMed ID: 10692719.
    Abstract:
    BACKGROUND: Dosing recommendations for oral sumatriptan as acute treatment for migraine have ranged from 25 mg to 100 mg. Patient dose preferences have not been studied in a setting mimicking clinical practice. METHODS: In an open-label study evaluating patient acceptance and the relative efficacy and safety of 25 mg, 50 mg, and 100 mg doses of oral sumatriptan over a period of six months, 338 patients treated three migraine attacks with 50 mg sumatriptan and then were allowed to double or halve the dose. After treating another three attacks, they were again allowed to adjust the dose by one level. RESULTS: After migraine attack 3, 37% of patients chose to continue with the 50 mg dose, 50% increased the dose to 100 mg, and 12% decreased it to 25 mg. After attack 6, 8%, 33%, and 58% of patients chose the 25 mg, 50 mg, and 100 mg doses, respectively; only 3% of those taking the 100 mg dose chose to reduce it. Overall, the mean percentages of attacks per patient in which headache relief had been obtained 4 h after dosing were 71%, 71%, and 80% for the 25 mg, 50 mg, and 100 mg doses, respectively. Patients who decreased the dose to 25 mg after attack 3 experienced decreases both in adverse events and percentage of attacks with headache relief, whereas in those who increased the dose to 100 mg, likelihood of headache relief increased but the incidence of adverse events did not. CONCLUSIONS: More patients chose the 50 mg or 100 mg dose than the 25 mg dose. All three doses had similar efficacy and tolerability.
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