Clinical Research Metadata Repository

The MDR harvests metadata on data objects from a variety of sources within clinical research (e.g. trial registries, data repositories) and brings that together in a single searchable portal. The metadata is concerned with discoverability, access and provenance of the data objects (which because the data may be sensitive will often be available under a controlled access regime). At the moment (01/2021) the MDR obtains study data from: Clinical Trials.gov (CTG), The European Clinical Trials Registry (EUCTR), ISRCTN, The WHO ICTRP

MDR（多源数据收集器）汇集了来自临床研究（例如临床试验注册处、数据存储库）中的数据对象的元数据，并将这些信息集成在一个可搜索的门户网站中。这些元数据涵盖了数据对象的可发现性、可访问性和来源（由于数据可能具有敏感性，通常在受控访问制度下提供）。截至目前（2021年1月），MDR从以下来源获取研究数据：Clinical Trials.gov（CTG）、欧洲临床试验注册处（EUCTR）、ISRCTN、世界卫生组织国际临床试验注册平台（WHO ICTRP）。