在临床试验中调节安慰剂效应:研究小组简报以优化药物-安慰剂差异
Martin Coenen1,2, Ulrike Bingel3, Maria Soledad Berdaguer1,2
1Clinical Study Core Unit, Study Center Bonn (SZB), University Hospital Bonn, Bonn, Germany.
Clinical and translational science
|November 13, 2025
概括
关于安慰剂效应的简报研究小组在临床试验中没有改变疼痛缓解或预期. 训练团队最大限度地提高或降低安慰剂反应的训练对止痛结果没有显著的影响.
科学领域:
- 临床药理学 临床药理学
- 疼痛管理 疼痛管理
- 研究方法研究方法研究方法学
背景情况:
- 临床试验中的安慰剂效应可以掩盖真正的药物疗效.
- 了解和减轻安慰剂反应对于准确的试验结果至关重要.
研究的目的:
- 调查研究小组成员对安慰剂机制的简报是否会影响患者的止痛.
- 评估研究小组培训对安慰剂效应和治疗预期的影响.
主要方法:
- 一项随机研究比较了三组 (未经训练,训练以最大限度地增加安慰剂,训练以最大限度地减少安慰剂) 的氧化和安慰剂止痛作用.
- 在冷压器测试中,使用视觉模拟尺度测量疼痛减轻.
- 治疗期望与减少疼痛的结果一起被评估.
主要成果:
- 氧化和安慰剂在所有组的疼痛缓解中显示出预期的差异.
- 研究小组的简报没有显著改变疼痛减轻或治疗预期.
- 治疗期望与氧化比安慰剂更高,与治疗效果相关,可能是由于不良事件的失明.
结论:
- 研究小组的简短培训可能不足以改变治疗期望和安慰剂止痛.
- 未来的研究应该探索优化方法,将安慰剂知识纳入临床试验设计.
- 结果为改善盲目的试验设计和药物治疗评估的策略提供信息.
相关概念视频
01:54The Placebo Effect
6.8K
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.
6.8K
02:07Blind Procedures
12.8K
Ideally, the people who observe and record the children’s behavior are unaware of who was assigned to the experimental or control group, in order to control for experimenter bias. Experimenter bias refers to the possibility that a researcher’s expectations might skew the results of the study. Remember, conducting an experiment requires a lot of planning, and the people involved in the research project have a vested interest in supporting their hypotheses. If the observers knew which...
12.8K
01:11Blinding
3.8K
Blinding is a commonly used method of not telling participants which treatment a subject is receiving. Blinding is a critical part of a randomized control trial or RCT. It reduces the bias that affects the results. In an RCT, blinding is used in the form of a placebo. A placebo effect occurs when untreated subjects falsely believe they have received the treatment and report improved symptoms. A placebo or a dummy treatment is administered to subjects to negate the bias caused by such an effect.
3.8K
01:24Dosage Regimen: Individualization
146
Individualization in dosing regimens is the customization of medication doses for individual patients. Its necessity arises from the goal of maximizing therapeutic benefits while minimizing risks. This approach is pivotal because human responses to drugs can vary widely; what is effective for one person may be inadequate or excessive for another. Interpatient (intersubject) variability refers to differences in drug responses between individuals, while intrapatient (intrasubject) variability...
146
01:23Types of Biopharmaceutical Studies: Controlled and Non-Controlled Approaches
375
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,...
375
01:27Pharmaceutical Alternatives: Polymorphic Form-Related and Particle Size-Related Therapeutic Nonequivalence
127
Changes in polymorphic forms can significantly influence the bioavailability of poorly soluble drugs. Although the FDA defines pharmaceutical equivalence based on having the same active ingredient, dosage form, and route of administration, it does not automatically disqualify products with different polymorphic forms. This means two products with different polymorphs can still be deemed pharmaceutically equivalent. However, polymorphic differences can affect properties like wettability,...
127