片頭痛予防のためのトピラマート:ランダム化制御試験
Jan Lewis Brandes1, Joel R Saper, Merle Diamond
1Nashville Neuroscience Group, Nashville, Tenn 37203, USA. jbrandes@nashvilleneuroscience.com
JAMA
|February 26, 2004
まとめ
トピラマートは,毎月の片頭痛の頻度と,治療の最初の1ヶ月間の日数を著しく減少させ,大規模な制御試験で片頭痛の予防に持続的な有効性を実証しました.
科学分野:
- 神経学 神経学とは
- 臨床薬理学 臨床薬理学とは
背景:
- 以前の試験では,トピラマートの偏頭痛予防の可能性を示しました.
- この研究は,より大きな集団で有効性と安全性を確認することを目的とした.
研究 の 目的:
- 大規模,ランダム化,ダブルブラインド,プラセボ対照試験において,片頭痛の予防におけるトピラマートの有効性と安全性を評価する.
主な方法:
- 26週間の試験では,偏頭痛歴のある483人の患者 (12歳から65歳) をランダムに,プラセボまたはトピラマート (50,100,または200 mg/d) を投与するようにしました.
- トピラマートは8週間にわたって定位され,その後18週間の維持治療が行われました.
- プライマリエンドポイントは,月間平均片頭痛頻度の変化であり,二次エンドポイントは,応答率と片頭痛日数の減少でした.
主要な成果:
- トピラマート100mgと200mg/dは,プラセボと比較して月間片頭痛の頻度を有意に低下させた (P<.001).
- すべてのトピラマート投与量 (50, 100, 200 mg/d) とプラセボ投与量 (P<.001) の間で,応答者の割合が著しく高かった.
- トピラマート100 mg/dおよび200 mg/dで,片頭痛の日数および救命薬の使用量の有意な減少が観察されました.
結論:
- トピラマートは,片頭痛の予防に有意な効果を示し,治療の最初の1ヶ月以内に効果が観察されました.
- トピラマートの予防効果は,26週間の研究期間中に維持されました.
- 治療中止に至った一般的な有害事象には,麻酔,疲労,吐き気が含まれていました.
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