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Curr Med Res Opin. 1999;15(4):254-71.

A long-term study to maximise migraine relief with zolmitriptan.

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  • 1The Polyclinic, Seattle, USA.


Part 1 of this international study was a randomised, double-blind, placebo-controlled study of 2.5 mg and 5 mg zolmitriptan (Zomig) in the treatment of persistent migraine headache, two hours after an initial dose of 2.5 mg zolmitriptan. Part 2 was a non-comparative evaluation of long-term, unrestricted zolmitriptan use for treatment of initial, persistent and recurrent migraine headaches. In Part 1, following the treatment of moderate or severe persistent headache, two-hour headache response rates with 5 mg zolmitriptan (51.6%, n = 322), 2.5 mg zolmitriptan (49.7%, n = 324) and placebo (51.6%, n = 343) were not significantly different. However, the pain-free response rate following the treatment of persistent migraine headache of any intensity was significantly higher with 5 mg zolmitriptan than with placebo (36.0% vs. 25.5%; p < 0.001). This was predominantly due to effects in the subgroup of patients with mild headache. Thus, migraine relief in patients whose initial headache shows a partial response to 2.5 mg zolmitriptan may be maximised by a second 5 mg dose. In Part 2 (involving 2499 evaluable patients), 65.8% of attacks were treated with a single dose of zolmitriptan (2.5 mg or 5 mg). Of those migraine attacks initially treated with 2.5 mg zolmitriptan, 70.3% required no further dose, similarly 62.7% of migraine attacks treated initially with 5 mg zolmitriptan only required a single dose. Over the whole attack (i.e. initial and any persistent headache), headache response rates to one or two zolmitriptan doses were greater than 88.8%. 'Level of pain' was the primary factor influencing the choice of dose. Zolmitriptan provided consistent migraine headache relief in the majority of patients and was well tolerated.

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