在ASPREE随机试验中对老年人中阿司匹林影响的合规性调整估计
American journal of epidemiology
|August 8, 2023
概括
每日低剂量阿司匹林 (100毫克) 并没有改善老年人的无残疾生存率. 符合性调整后的分析证实,初级预防没有益处,并且显示主要出血事件的风险增加.
科学领域:
- 老年学是一门学科.
- 临床药理学 临床药理学
- 预防医学 预防医学
背景情况:
- 阿司匹林减少老年人 (ASPREE) 试验研究了老年人每天低剂量阿司匹林的疗效和安全性.
- 了解药物坚持对于解释试验结果至关重要,特别是在涉及老年人群的长期研究中.
研究的目的:
- 评估每日低剂量阿司匹林对老年人的无残生存期和其他健康结果的调整后效应.
- 将治疗意图分析与关键终点的合规性调整分析进行比较.
主要方法:
- 该ASPREE试验随机分配了19,114名参与者每天服用100毫克阿司匹林或安慰剂.
- 使用维护等级的结构性故障时间模型来估计符合性调整后的效应.
- 无残疾生存是主要结果,次要结果包括大出血,癌症死亡率和全因死亡率.
主要成果:
- 符合性调整后的分析结果与对无残疾生存率和大多数次要终点的治疗意向分析结果相似.
- 根据合规性调整的分析表明,与治疗意图分析相比,大出血,癌症死亡率和全因死亡率的风险更高.
- 阿司匹林对老年人的初级预防没有益处,临床上显著出血的风险增加.
结论:
- 每日低剂量阿司匹林对老年人初级预防没有任何好处.
- 符合性调整后的分析证实了没有益处的发现,并强调了在这个人群中使用阿司匹林时出现出血事件的风险增加.
更多相关视频
08:42Ultrasound Assessment of Endothelial-Dependent Flow-Mediated Vasodilation of the Brachial Artery in Clinical Research
Published on: October 22, 2014
27.4K
06:28E-Patient Counseling Trial E-PACO: Computer Based Education versus Nurse Counseling for Patients to Prepare for Colonoscopy
Published on: August 1, 2019
8.4K
相关概念视频
Types of Biopharmaceutical Studies: Controlled and Non-Controlled Approaches
148
Biopharmaceutical studies constitute a vital field aiming to enhance drug delivery methods and refine therapeutic approaches, drawing upon diverse interdisciplinary knowledge. In research methodologies, the choice between controlled and non-controlled studies significantly influences the study's reliability and accuracy.
Non-controlled studies, commonly employed for initial exploration, lack a control group, rendering them susceptible to biases and external influences. In contrast,...
Non-controlled studies, commonly employed for initial exploration, lack a control group, rendering them susceptible to biases and external influences. In contrast,...
148
Time Course of Drug Effect
2.1K
The progression of a drug's impact can be analyzed by examining both the concentration-time course and the effect-time course. The concentration-time course is determined by the drug's half-life and is influenced by factors such as its pharmacokinetics, including absorption, distribution, metabolism, and elimination. The effect of the drug is often related to its concentration in the plasma and is calculated using the maximum drug effect and the plasma concentration that generates 50...
2.1K
Antiplatelet Drugs: Prostaglandin Synthesis, P2Y12 and Glycoprotein IIb/IIIa Inhibitors
563
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...
563
Factors Affecting Drug Response: Overview
2.0K
When it comes to infants and young children, they are typically administered smaller doses of medication in comparison to adults. This is primarily because their organ functions still need to fully develop, meaning their bodies are not as efficient at metabolizing or eliminating drugs. Additionally, their blood-brain barrier is more permeable than in adults. As a result, high concentrations of drugs can easily penetrate the central nervous system (CNS), potentially leading to neurological...
2.0K
The Placebo Effect
6.2K
The placebo effect occurs when people's expectations or beliefs influence or determine their experience in a given situation. In other words, simply expecting something to happen can actually make it happen.
6.2K
Combined Effects of Drugs: Antagonism
8.6K
The combined effects of drugs can result in various interactions, of which an important type is antagonism. Antagonism is a mechanism where one drug inhibits or counteracts the effects of another drug. Antagonism can occur through various means, including receptor binding, allosteric modulation, functional interaction, chemical reactions, and pharmacokinetic processes.
The most common type is receptor antagonism, where one drug acts as an antagonist to block the effects of another drug by...
The most common type is receptor antagonism, where one drug acts as an antagonist to block the effects of another drug by...
8.6K
