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《新冠疫情期间的傲慢与偏见:临床试验设计不当的不幸》。

Pride and Prejudice during the COVID-19 Pandemic: The Misfortune of Inappropriate Clinical Trial Design.

机构信息

Clinical Trials Unit, King Faisal Specialist Hospital & Research Centre, Riyadh, KSA.

Division of Hematology, Dept. of Internal Medicine, Mayo Clinic, Rochester, MN, USA.

出版信息

J Epidemiol Glob Health. 2021 Mar;11(1):15-19. doi: 10.2991/jegh.k.200729.001. Epub 2020 Aug 7.

Abstract

Coronavirus Disease 2019 (COVID-19) is a rapidly evolving global pandemic for which more than a thousand clinical trials have been registered to secure therapeutic effectiveness, expeditiously. Most of these are single-center non-randomized studies rather than multi-center, randomized controlled trials. Single-arm trials have several limitations and may be conducted when spontaneous improvement is not anticipated, small placebo effect exists, and randomization to a placebo is not ethical. In an emergency where saving lives takes precedence, it is ethical to conduct trials with any scientifically proven design, however, safety must not be compromised. A phase II or III trial can be conducted directly in a pandemic with appropriate checkpoints and stopping rules. COVID-19 has two management paradigms- antivirals, or treatment of its complications. Simultaneous assessment of two different treatments can be done using 2 × 2 factorial schema. World Health Organization's SOLIDARITY trial is a classic example of the global research protocol which can evaluate the preferred treatment to combat COVID-19 pandemic. Short of that, a trial design must incorporate the practicality of the intervention used, and an appropriate primary endpoint which should ideally be a clinical outcome. Collaboration between institutions is needed more than ever to successfully execute and accrue in randomized trials.

摘要

2019 年冠状病毒病(COVID-19)是一种迅速演变的全球大流行疾病,为了确保治疗效果,已经有超过一千项临床试验被注册。其中大多数都是单中心非随机研究,而不是多中心随机对照试验。单臂试验有几个局限性,可能在预期不会自发改善、安慰剂效应较小且对安慰剂进行随机分配不道德的情况下进行。在优先考虑拯救生命的紧急情况下,使用任何经过科学证明的设计进行试验是合乎道德的,但是,安全性不能受到损害。可以在大流行期间直接进行 II 期或 III 期试验,并设置适当的检查点和停止规则。COVID-19 有两种管理模式——抗病毒治疗或治疗其并发症。可以使用 2×2 析因设计同时评估两种不同的治疗方法。世界卫生组织的 SOLIDARITY 试验是一个全球研究方案的经典范例,可以评估治疗 COVID-19 大流行的首选治疗方法。在缺乏这种方法的情况下,试验设计必须纳入所使用干预措施的实用性,并采用一个适当的主要终点,理想情况下应该是临床结果。机构之间的合作比以往任何时候都更加重要,以成功地执行和积累随机试验。

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