ctrdata: Retrieve and Analyze Clinical Trials in Public Registers

A system for querying, retrieving and analyzing protocol- and results-related information on clinical trials from three 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 ('PostgreSQL', 'SQLite' or 'MongoDB'; via package 'nodbi'). Functions are included 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. The package can be used for meta-analysis and trend-analysis of the design and conduct as well as for results of clinical trials.

Version: 1.9.1
Imports: jsonlite, httr, curl, clipr, xml2, rvest, nodbi (≥ 0.7.0), stringi, dplyr, lubridate
Suggests: devtools, knitr, rmarkdown, RSQLite (≥ 2.2.4), mongolite, tinytest (≥ 1.2.1), R.rsp
Published: 2022-04-24
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: Install R package ctrdata
Retrieve clinical trial information
Summarise and analyse clinical trial information


Package source: ctrdata_1.9.1.tar.gz
Windows binaries: r-devel: ctrdata_1.9.1.zip, r-release: ctrdata_1.9.1.zip, r-oldrel: ctrdata_1.9.1.zip
macOS binaries: r-release (arm64): ctrdata_1.9.1.tgz, r-oldrel (arm64): ctrdata_1.9.1.tgz, r-release (x86_64): ctrdata_1.9.1.tgz, r-oldrel (x86_64): ctrdata_1.9.1.tgz
Old sources: ctrdata archive


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