在近视管理接触镜片试验中确定非劣势边际,使用主动对照
Ravi Chandra Bakaraju1,2, Daniel Tilia3,2
1nthalmic Pty Ltd, Botany, New South Wales, Australia r.bakaraju@nthalmic.com.
BMJ open ophthalmology
|December 5, 2025
概括
在试验中拒绝使用有效的近视控制软隐形眼镜在伦理上是很困难的. 新的非劣势性试验必须为近视管理中的有意义的临床结果设定适当的边际.
科学领域:
- 眼科医生 眼科 眼科
- 视光学测量 视光学测量 视光学测量
- 临床试验 临床试验
背景情况:
- 控制近视的干预措施,特别是像MiSight 1-day这样的软隐形眼镜,越来越有效.
- 关于在近视管理试验的对照组中不提供经过验证的治疗方法,存在道德方面的担忧.
- 方法上的转变有利于非劣等性试验,而不是安慰剂控制的设计.
研究的目的:
- 为了解决近视控制研究中的伦理挑战.
- 检查过渡到非劣等性试验设计的影响.
- 突出了强有力的非劣势保证金设置的关键需求.
主要方法:
- 在近视管理试验中的伦理考虑的审查.
- 分析临床试验设计中的方法演变.
- 讨论在定义非劣势差额时的统计挑战.
主要成果:
- 拒绝有效的软隐形眼镜干预措施在伦理上是有问题的.
- 非劣势性试验正在成为标准,取代了安慰剂对照.
- 建立具有临床意义和统计学合理的非劣势边际是一个关键的挑战.
结论:
- 近视控制领域面临着关于拒绝治疗的伦理困境.
- 转向非劣势试验需要仔细考虑边际设置.
- 确保非劣势边际的临床相关性和统计有效性对于未来的研究至关重要.
相关概念视频
01:27Open Angle Glaucoma: Treatment
934
In open-angle glaucoma, the iridocorneal angle remains open, but the trabecular meshwork becomes stiff, slowing down the outflow of aqueous humor. This causes a buildup of aqueous humor in the anterior chamber, leading to a sudden increase in intraocular pressure. The treatment for open-angle glaucoma focuses on reducing the elevated intraocular pressure by either decreasing the secretion of aqueous humor or increasing its outflow.
Drugs such as carbonic anhydrase inhibitors, α2- and...
Drugs such as carbonic anhydrase inhibitors, α2- and...
934
01:28Angle Closure Glaucoma: Treatment
1.1K
Angle-closure glaucoma, or closed-angle glaucoma, is an eye condition where the iris bulges out and blocks the iridocorneal angle, resulting in a buildup of aqueous humor and increased intraocular pressure. Immediate medical attention is necessary due to the sudden onset of symptoms. The treatment for angle-closure glaucoma includes short-term and long-term approaches. Short-term treatment involves using eye drops like pilocarpine to lower intraocular pressure by increasing aqueous humor...
1.1K
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
01:23Types of Biopharmaceutical Studies: Controlled and Non-Controlled Approaches
382
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,...
382
01:16Focusing of Light in the Eye
5.3K
Light rays enter the eye through the cornea, a transparent dome-shaped tissue that is the eye's outermost layer. The cornea bends or refracts, light rays traveling to the pupil. The shape of the cornea determines how much of the light is bent and whether the image will be focused correctly on the retina at the back of the eye. Once the light has passed through both refraction layers, it converges into a single focal point onto a small area. This is where photoreceptors start transforming...
5.3K