エヴォロキュマブとアトルバスタチンの脂質タンパク質代謝に対する因数学的効果
Gerald F Watts1, Dick C Chan2, Ricardo Dent2
1From Lipid Disorders Clinic, Department of Cardiology, Royal Perth Hospital, Australia (G.F.W.); School of Medicine and Pharmacology, University of Western Australia, Crawley (D.C.C., S.B., P.H.R.B.); Amgen Europe, Inc, Zug, Switzerland (R.D., R.S., S.M.W.); and Amgen Inc, Thousand Oaks, CA (R. Scott). gerald.watts@uwa.edu.au.
Circulation
|December 13, 2016
まとめ
エボロキュマブはPCSK9のモノクローナル抗体で,脂質タンパク質の分解を増加させ,生成を減少させることで,LDLコレステロールを低下させる. アトルバスタチンとの併用療法では,単独療法よりもLDLの減少が顕著で,代謝効果が顕著であった.
科学分野:
- 脂質代謝
- 薬動力学
- 心血管研究
背景:
- エボロキュマブのようなプロプロテインコンバーターゼサブチリシンケキシン9型 (PCSK9) モノクローナル抗体により,LDLコレステロールを低下させる.
- PCSK9阻害剤が脂質タンパク質代謝に及ぼす正確なメカニズムについては,さらなる解明が必要である.
- 安定性同位体トレーサーの運動学は,脂質調節薬剤の研究にとって貴重なツールである.
研究 の 目的:
- VLDL,IDL,LDLアポリプロテインB-100 (apoB) のプラズマ運動に対するアトルバスタチンとエヴォロキュマブの影響を調査する.
- アトルバスタチンとエヴォロキュマブの代謝作用のメカニズムを比較する.
- PCSK9阻害薬のスタチン療法以上の増幅効果について,運動学的洞察を提供するためです.
主な方法:
- 81人の健康な男性を対象とした2x2因数試験
- アトルバスタチン (80 mg/ 日) とエヴォロキュマブ (420 mg 2 週間に 1 回) を 8 週間投与する.
- VLDL,IDL,LDLにおけるアポB運動を研究するために,D3-ルシンの安定同位体注入,GC/MS,およびマルチコンパートメントモデリング.
主要な成果:
- アトルバスタチンとエヴォロキュマブは,VLDL- apoB,IDL- apoB,LDL- apoBの分量分解を加速した.
- エボロキュマブはアトルバスタチンではなく,IDL- apoBとLDL- apoBの生成率を低下させ,血脂蛋白レベルを低下させた.
- 併用療法では,単独療法と比較して,LDL- apoBとLDLコレステロールの減少が著しく増加しました.
結論:
- エヴォロキュマブは,アテロゲン性脂質タンパク質,主にLDLを減らし,その代謝を促進し,その生成を減少させます.
- エボロキュマブの運動プロファイルは,アトルバスタチンと比べて異なる作用メカニズムを示しています.
- これらの発見は,スタチンと併用したPCSK9単一クローン抗体の,追加的な心血管上の利点の可能性を裏付けている.
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