ゾタロリムス排出ステントを施した後の3か月の対抗血小板治療と12か月の対抗血小板治療:OPTIMIZEランダム化試験
Fausto Feres1, Ricardo A Costa1, Alexandre Abizaid1
1Instituto Dante Pazzanese de Cardiologia, São Paulo, São Paulo, Brazil.
JAMA
|November 2, 2013
まとめ
ゾタロリムスを排出するステントを投与している患者にとって,3ヶ月の二重抗血小板治療は,12ヶ月の治療と同じくらい安全で効果的です. 二重抗血小板治療 (DAPT) のこの短い期間は,ステントの血栓症を増やすことなくリスクを軽減します.
科学分野:
- 心臓病学 心臓病学
- 介入性心臓病学 介入性心臓病学
- 薬理学 薬理学とは
背景:
- 現在のガイドラインでは,薬剤排出ステントの埋め込み後,少なくとも12ヶ月間の二重抗血小板療法 (DAPT) を推奨しています.
- 最適なDAPTの持続時間は,特定の薬物排出ステントタイプによって異なりますので,さらなる研究が必要です.
研究 の 目的:
- ゾタロリムス排出ステントによる皮経冠動脈介入 (PCI) を受けている患者における3ヶ月 (短期) と12ヶ月 (長期) のDAPTの臨床的非劣等性を比較する.
主な方法:
- OPTIMIZE試験は,1:1のランダム化,オープン・ラベル,アクティブ・コントロールの非劣等性試験で,ブラジルの33箇所から3119人の患者が参加した.
- 患者はPCI後の3か12ヶ月間,ゾタロリムス排出ステントでアスピリンとクロピドグレルを投与された.
- プライマリエンドポイントは,ネット不良臨床および脳イベント (NACCE) であり,二次エンドポイントは,メジャー不良心臓イベント (MACE) とステント血栓症を含む.
主要な成果:
- NACCEは短期DAPT群の6.0%,長期DAPT群の5.8%で発生し,非劣等性を示した (P=.002).
- 1年間のMACE率は短期的には8.3%,長期的には7.4%であった (HR,1.12;95%CI,0.87-1.45).
- 91日~360日間のグループ間でNACCE,MACE,またはステント血栓症の有意な差異は観察されなかった.
結論:
- 3ヶ月のDAPTは,ゾタロリムスを排出するステントで治療された患者でNACCEの12ヶ月よりも劣らない.
- 短いDAPTの期間は,ステントの血栓形成やその他の有害事象のリスクを有意に増加させなかった.
- これらの発見は,特定の患者集団および特定のステントタイプにおいて,より短いDAPTの持続時間を支持しています.
関連する概念動画
Antiplatelet Drugs: Prostaglandin Synthesis, P2Y12 and Glycoprotein IIb/IIIa Inhibitors
1.6K
Antiplatelet drugs emerge as frontline defenders against the insidious threat of thromboembolic diseases, where abnormal clots obstruct vital blood vessels. These drugs stand as bulwarks, inhibiting platelet aggregation and clot formation, thereby mitigating the risk of life-threatening conditions like myocardial infarction, coronary artery disease, and thrombotic strokes.
Prostaglandin synthesis inhibitors, exemplified by the widely known aspirin, wield their power by irreversibly acetylating...
Prostaglandin synthesis inhibitors, exemplified by the widely known aspirin, wield their power by irreversibly acetylating...
1.6K
Bioavailability Study Design: Single Versus Multiple Dose Studies
388
Bioavailability studies are essential for understanding how a drug is absorbed, distributed, metabolized, and excreted in the body. These studies assess the extent and rate at which the active pharmaceutical agent becomes available at the site of action. The design of bioavailability studies can involve single-dose or multiple-dose regimens, each with distinct advantages and limitations.Single-dose studies are the preferred approach due to their simplicity and reduced drug exposure for...
388
Coronary Artery Disease V: Interprofessional Care
450
Interprofessional care for coronary artery disease includes pharmacological therapy and revascularization procedures.Pharmacological therapy for Coronary Artery Disease (CAD) aims to manage symptoms, prevent complications, and improve patient outcomes through various classes of medications:Antiplatelet Agents:Aspirin and Clopidogrel: These medications inhibit platelet aggregation, preventing blood clots, which is crucial for avoiding heart attacks and strokes. Doctors often prescribe these...
450
Acute Coronary Syndrome III: Diagnostic Studies
500
Diagnosing acute coronary syndrome or ACS begins with a thorough patient history. Notable symptoms include central, crushing chest pain radiating to the left arm, neck, jaw, or back, along with shortness of breath, sweating (diaphoresis), nausea, vomiting, dizziness, and palpitations.It is crucial to note any history of cardiac illnesses and assess risk factors, including age, gender, smoking, hypertension, diabetes, hyperlipidemia, and a sedentary lifestyle.During physical examination, vital...
500
Atherosclerosis III: Management
747
Management of atherosclerosis involves an integrated strategy encompassing pharmacological treatment, surgical interventions, lifestyle changes, and nutrition therapy to address the multifactorial nature of the disease.Pharmacological TherapyA cornerstone of atherosclerosis management is the use of pharmacological agents. Statins, such as atorvastatin, are pivotal in inhibiting HMG-CoA reductase, an enzyme that catalyzes an initial step in cholesterol synthesis in the liver. This reduction in...
747
Peripheral Artery Disease III: Interprofessional Care
659
Peripheral Artery Disease (PAD) is characterized by narrowed arteries that diminish blood flow to the extremities. Effective management of PAD requires an interprofessional approach involving various healthcare professionals. The critical aspects of interprofessional care for PAD patients focus on risk factor modification, drug therapy, exercise therapy, nutrition therapy, critical limb ischemia care, and interventional radiology and surgical procedures.The primary treatment goal for PAD...
659


