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, < https://www.clinicaltrialsregister.eu/>) and ClinicalTrials.gov (CTGOV, < https://clinicaltrials.gov/>). The trial information is transformed and stored in a database (RSQLite or MongoDB, via nodbi). Functions are provided to identify de- duplicated records, to easily find and extract variables (fields) of interest even from complex nesting as used by the registers, and to update previous queries that users retrieved in a database. The package can be used for meta analysis and trend-analysis of the design and conduct as well as results of clinical trials.


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install.packages("ctrdata")

1.4.0 by Ralf Herold, 7 days ago


https://cran.r-project.org/package=ctrdata


Report a bug at https://github.com/rfhb/ctrdata/issues


Browse source code at https://github.com/cran/ctrdata


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