糖尿病のない患者の急性心筋梗塞後のメトホルミンの左心室機能に対するメトホルミンの効果:GIPS-IIIランダム化臨床試験
Chris P H Lexis1, Iwan C C van der Horst2, Erik Lipsic1
1University of Groningen, University Medical Center Groningen, Department of Cardiology, Groningen, the Netherlands.
JAMA
|April 2, 2014
まとめ
メトホルミンは,心臓発作後の糖尿病のない患者の左心室排泄分子を改善しませんでした. この研究では,メトホルミンは,この患者グループにおける心臓機能の保存に有益ではないことが示唆されています.
科学分野:
- 心臓病学 心臓病学
- 薬理学 薬理学とは
背景:
- メトフォーミンは,心筋梗塞後の糖尿病患者のアウトカムを改善することが知られている.
- 動物の研究によると,メトフォーミンは左心室の機能を保ちます.
研究 の 目的:
- STセグメント上昇心筋梗塞 (STEMI) の非糖尿病患者の左心室機能に対するメトホルミンの効果を評価する.
主な方法:
- 二重盲検,プラセボ対照試験で,STEMIのために一次皮経冠動脈干渉 (PCI) を受けている380人の患者が参加しました.
- 患者は4ヶ月間,メトホルミン (500 mg2回/日) またはプラセボを投与されました.
- 左心室射出分数 (LVEF) は4ヶ月後にMRIで評価されました.
主要な成果:
- 4ヶ月でメトホルミンとプラセボ群の間でLVEFの有意な差は観察されなかった (53.1%対54.8%,P=10).
- また,NT-proBNP濃度および主要な心疾患不良事象 (MACE) を含む二次測定法でも,有意な差異は認められなかった.
- 乳酸アシドーシスの症例は報告されず,腎機能とグリケイドヘモグロビンのレベルはグループ間で類似していました.
結論:
- メトホルミンの治療は,プライマリPCIを受けたSTEMIの非糖尿病患者のLVEFを改善しませんでした.
- この発見は,この特定の患者集団における左心室機能を保存するためにメトホルミンの使用を支持しません.
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