相关实验视频
Updated: Jul 11, 2025

09:09
In Silico Clinical Trials for Cardiovascular Disease
Published on: May 27, 2022
1.8K
在心血管临床试验中的终点判断
Muhammad Shahzeb Khan1, Muhammad Shariq Usman2,3, Harriette G C Van Spall4,5
1Division ofCardiology, Duke University School of Medicine, 2301 Erwin Road, Durham, NC 27705, USA.
European heart journal
|November 7, 2023
概括
在心血管试验中,终点判断 (EA) 可能并不总是必要的. 基于风险的方法可以平衡准确性和成本,特别是对于死亡等简单的终点.
科学领域:
- 心血管医学 心血管医学
- 临床试验方法论 临床试验方法论
- 生物统计学 生物统计学
背景情况:
- 临床终点委员会 (CEC) 进行终点判断 (EA) 在心血管随机对照试验 (RCT) 中很常见.
- 经验分析旨在减少错误分类,偏见和统计噪音,通过对预先规定的定义对调查人员识别的终点进行验证.
- 然而,EA显著增加了试验成本,时间和资源,引发了对其普遍必要性的质疑.
研究的目的:
- 为了比较主要心血管RCT中被判定与未被判定终点的总结估计.
- 制定一个框架来确定什么时候EA在临床试验中是合理的,而不是冗余的.
- 确定影响EA值的试验特征.
主要方法:
- 在已发表的心血管RCT中对已定和未定终点的总结估计进行比较分析.
- 制定基于风险的框架,以指导关于EA必要性的决定.
- 确定影响EA实用性的特定试验特征 (例如,终点细微差别,数据质量,盲定).
主要成果:
- 在细微的终点 (如心肌梗塞,出血,心力衰竭恶化) 和数据不完整或缺乏盲目的试验中,EA的值更高.
- 对于更简单的终点,如全因死亡或住院治疗,EA可能是多余的.
- 基于风险的方法,包括部分裁决,可以优化成本和准确性之间的平衡.
结论:
- 终点判断在心血管RCT中并不普遍要求;它的必要性取决于终点的复杂性和试验特征.
- 针对EA的量身定制,基于风险的方法可以在不损害试验完整性的情况下改善资源分配.
- 考虑终点细微差别,数据质量和遮蔽在决定终点裁决范围时至关重要.
相关概念视频
Clinical Trials: Overview
3.0K
Clinical development focuses on how the drug will interact with the human body and encompasses four key phases of clinical trials, each serving a specific purpose in assessing the safety and effectiveness of new drugs. These phases overlap and build upon one another. Phase I involves a small group of healthy volunteers (typically 20-80 individuals) or, in cases where significant toxicity is expected, patients with the targeted disease, such as cancer or AIDS. The volunteers are tested for...
3.0K
Clinical Trials
6.8K
Clinical trials are prospective experimental studies conducted on humans to determine the safety and efficacy of treatments, drugs, diet methods, and medical devices. Using statistics in clinical trials enables researchers to derive reasonable and accurate conclusions from the collected data, allowing them to make wise decisions in uncertain situations. In medical research, statistical methods are crucial for preventing errors and bias.
There are four phases in a clinical trial. A phase one...
There are four phases in a clinical trial. A phase one...
6.8K
Cardiac Catheterization II: Right Heart Catheterization
25
Right Heart Catheterization: An OverviewRight heart catheterization is an invasive diagnostic procedure that measures right-sided cardiac and pulmonary artery pressures, calculates cardiac output, and identifies intracardiac shunts. It provides detailed hemodynamic data essential for diagnosing and managing various cardiovascular conditions, such as pulmonary hypertension.Access SitesCommon access sites for right heart catheterization include the internal jugular vein in the neck region, the...
25
Peripheral Artery Disease III: Interprofessional Care
11
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...
11
Cardiac Catheterization I: Pre-Procedure Overview
28
Cardiac catheterization is an invasive diagnostic technique used to identify and evaluate structural and functional diseases of the heart and major blood vessels. This technique diagnoses congenital heart disease, coronary artery disease, valvular heart disease, and coronary spasms and assesses ventricular function. It helps guide treatment decisions, including the need for revascularization procedures like percutaneous coronary intervention (PCI) or coronary artery bypass grafting (CABG) and...
28
Cardiovascular Drugs: Classification based on Therapeutic Indications
2.9K
Cardiovascular diseases, encompassing a range of conditions, can significantly affect the heart's operations and the overall circulatory system. These conditions impair the heart's ability to pump blood, leading to a deficit in oxygen supply to crucial organs. Anomalies in the heart's electrical system, known as arrhythmias, can cause heartbeats to accelerate or slow down. Usually, heart rates increase during physical activity and decrease while resting or sleeping. However,...
2.9K

