抗うつ薬の中止後の安定した強迫性障害における再発率: システマティック・レビューとメタ解析
Taro Kishi1, Kenji Sakuma1, Masakazu Hatano1,2
1Department of Psychiatry, https://ror.org/046f6cx68Fujita Health University School of Medicine, Toyoake, Japan.
Psychological medicine
|August 28, 2025
まとめ
症状が安定した強迫性障害 (OCD) の患者に抗うつ剤の継続治療は有益であり,再発率を大幅に低下させます. このアプローチは,有害事象による治療中止率の低下にもつながります.
科学分野:
- 精神医学と行動科学
- 臨床薬理学
背景:
- 症状が安定した強迫性障害 (OCD) に対して,抗うつ剤の維持療法の最適な期間はよく定義されていません.
- 再発のリスクを理解することは,治療ガイドラインにとって極めて重要です.
研究 の 目的:
- OCD患者の抗うつ剤の維持と中止を比較したランダム化比較試験を体系的にレビューし,メタ分析する.
- 副作用による再発率,症状改善,治療中止に対する維持療法の影響を評価する.
主な方法:
- ダブルブラインドランダム化プラセボ対照試験 (DBRPCT) の系統的レビューとペアバイスメタ解析
- 継続治療と中止治療の間の再発率,強迫症候群改善率,および中止率の比較
- リスク比率 (RRs),絶対リスク減少率 (ARR),治療に必要な人数 (NNTB) の計算
主要な成果:
- 1084人の参加者を含む9件の試験を分析した.
- 抗うつ薬の維持は,研究終了点における再発率を有意に低下させた (RR=0. 53,ARR=21. 0%,NNTB=5).
- 維持療法は24週までの再発率を低下させ,中断と比較してOCDの症状のコントロールを改善した.
結論:
- 抗うつ薬の継続治療は,好調な患者では,再発率の低下と関連しています.
- メンテナンス療法では,再発を予防し,強迫性障害の症状を改善する効果が顕著である.
- 症状の安定化を達成したOCD患者の抗うつ剤治療の継続を支持しています.
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