Evidence‐based medicine uses high‐quality methods, such as randomization and blinding prcedures, to support and inform clinical practice. The investigation of trials registered in clinical research databases may help understand the main characteristics of studies conducted in countries, such as Brazil. This study aimed to investigate the characteristics of Brazilian clinical trials registered in ClinicalTrials.gov in the last decade.

中文翻译：

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2010 年至 2020 年在 ClinicalTrials.gov 注册的巴西临床研究的特征

循证医学使用高质量的方法，例如随机化和盲法程序，来支持和告知临床实践。对临床研究数据库中注册的试验进行调查可能有助于了解在巴西等国家进行的研究的主要特征。本研究旨在调查过去十年在 ClinicalTrials.gov 上注册的巴西临床试验的特征。