OpenTrials is building a collaborative and open linked database for all available structured data and documents on all clinical trials, threaded together by individual trial. With a versatile and expandable data schema, it is initially designed to host and match the following documents and data for each trial: Registry entries Links, abstracts, or texts of academic journal papers Portions of regulatory documents describing individual trials Structured data on methods and results extracted by systematic reviewers or other Researchers Clinical Study Reports Additional documents such as blank consent forms, blank case report forms, and protocols