• J Goldstein, C G Dahlöf, H C Diener, J Olesen, R Schellens, J M Senard, D Simard, and T J Steiner.
• Cephalalgia. 1996 Nov 1; 16 (7): 497-502.

AbstractAlniditan is a new 5HT1D receptor agonist, belonging to a different chemical class from sumatriptan and other indole derivatives used or being developed for the treatment of acute migraine. In a multinational double-blind randomized parallel-groups dose-finding trial, alniditan was given subcutaneously in hospital to patients with migraine headache of moderate or severe intensity at doses of 0.8 mg (n = 44), 1.0 mg (n = 42), 1.2 mg (n = 46) and 1.4 mg (n = 39). Efficacy, tolerability and safety of each dose were compared with those of placebo (n = 41). At 2 h after injection, headache was absent or mild in 83% and 82% of patients receiving alniditan 1.2 and 1.4 mg respectively compared with 39% for placebo (p < or = 0.002). Complete relief from headache was achieved in 72% (1.4 mg). Time to onset of relief decreased with increasing alniditan dose, and there was a dose-dependent reduction in headache recurrence rate: 25% of patients receiving 1.4 mg had responded by 15 min and headache recurred within 24 h in only 16% of the patients who initially responded to alniditan 1.4 mg, significantly less than for placebo (p = 0.018). Alniditan was superior to placebo in reducing the associated symptoms of nausea, phonophobia and photophobia, and in increasing patients' functional ability. The use of rescue medication was reduced when compared with placebo, and up to 87% of patients said that they would use the drug again if available. No clinically relevant cardiovascular effects were seen, nor consistent changes in clinical laboratory findings. Adverse effects, mainly head pressure, paraesthesia, and hot flushes, were reported by 34% of placebo-treated patients and up to 70% of patients receiving alniditan, but all doses were very well tolerated and no clear relationship with dose was established. Comparison with published findings suggests that alniditan 1.4 mg sc may have advantages over sumatriptan 6 mg sc in providing complete relief from acute migraine headache, and may be associated with fewer headache recurrences within 24 h. Both of these suggestions warrant further and larger trials of alniditan in acute migraine.

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