Retrieve and Analyze Clinical Trials in Public Registers

Provides functions for querying, retrieving and analysing protocol- and results-related information on clinical trials from two public registers, the European Union Clinical Trials Register (EUCTR, <>) and (CTGOV, <>). The information is transformed and then stored in a database (nodbi). Functions are provided for accessing and analysing the locally stored information on the clinical trials, as well as for identifying duplicate records. The package is motivated by the need for aggregating and trend-analysing the design, conduct and outcomes across clinical trials.


Reference manual

It appears you don't have a PDF plugin for this browser. You can click here to download the reference manual.


1.3.1 by Ralf Herold, 13 days ago

Report a bug at

Browse source code at

Authors: Ralf Herold [aut, cre]

Documentation:   PDF Manual  

MIT + file LICENSE license

Imports jsonlite, httr, curl, clipr, xml2, rvest, nodbi

Suggests devtools, knitr, rmarkdown, RSQLite, mongolite, tinytest, R.rsp

System requirements: sed, php, cat, perl

See at CRAN