ctrdata: Retrieve and Analyze Clinical Trials in Public Registers

Provides functions for querying, retrieving and analyzing protocol- and results-related information on clinical trials from two public registers, the 'European Union Clinical Trials Register' ('EUCTR', <https://www.clinicaltrialsregister.eu/>), 'ClinicalTrials.gov' ('CTGOV', <https://clinicaltrials.gov/>) and the 'ISRCTN' (<http://www.isrctn.com/>). Trial information is downloaded, converted and stored in a database ('SQLite' 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.

Version: 1.6.0
Imports: jsonlite, httr, curl, clipr, xml2, rvest, nodbi (≥ 0.4), DBI, stringi
Suggests: devtools, knitr, rmarkdown, RSQLite (≥ 2.1.2), mongolite, tinytest (≥ 1.2.1), R.rsp
Published: 2021-05-10
Author: Ralf Herold ORCID iD [aut, cre]
Maintainer: Ralf Herold <ralf.herold at mailbox.org>
BugReports: https://github.com/rfhb/ctrdata/issues
License: MIT + file LICENSE
URL: https://cran.r-project.org/package=ctrdata
NeedsCompilation: no
SystemRequirements: sed, php, cat, perl
Materials: README NEWS
CRAN checks: ctrdata results


Reference manual: ctrdata.pdf
Vignettes: Summarise and analyse clinical trial information
Install R package ctrdata
Retrieve clinical trial information
Package source: ctrdata_1.6.0.tar.gz
Windows binaries: r-devel: ctrdata_1.6.0.zip, r-release: ctrdata_1.6.0.zip, r-oldrel: ctrdata_1.6.0.zip
macOS binaries: r-release: ctrdata_1.6.0.tgz, r-oldrel: ctrdata_1.6.0.tgz
Old sources: ctrdata archive


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