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 four public registers, the 'European Union Clinical Trials Register' ('EUCTR', <https://www.clinicaltrialsregister.eu/>), 'ClinicalTrials.gov' ('CTGOV', using the classic interface at <https://classic.clinicaltrials.gov/>, and 'CTGOV2', using the current interface at <https://www.clinicaltrials.gov/>), the 'ISRCTN' (<http://www.isrctn.com/>) and the 'European Union Clinical Trials Information System' ('CTIS', <https://euclinicaltrials.eu/>). Trial information is downloaded, converted and stored in a database ('PostgreSQL', 'SQLite', 'DuckDB' or 'MongoDB'; via package 'nodbi'). Documents in registers associated with trials can also be downloaded. Other functions identify deduplicated records, easily find and extract variables (fields) of interest even from complex nested data as used by the registers, merge variables and update queries. The package can be used for meta-analysis and trend-analysis of the design and conduct as well as of the results of clinical trials.

Version: 1.17.1
Imports: jsonlite, httr, curl (≥ 5.1.0), clipr, xml2, nodbi (≥ 0.10.0), stringi, tibble, lubridate, jqr, dplyr, zip, V8, readr, digest
Suggests: devtools, knitr, rmarkdown, RSQLite (≥ 2.3.5), mongolite, tinytest (≥ 1.2.1), R.rsp, RPostgres, duckdb
Published: 2024-02-04
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
Language: en-GB
Materials: README NEWS
In views: ClinicalTrials
CRAN checks: ctrdata results

Documentation:

Reference manual: ctrdata.pdf
Vignettes: Install R package ctrdata
Retrieve clinical trial information
Summarise and analyse clinical trial information

Downloads:

Package source: ctrdata_1.17.1.tar.gz
Windows binaries: r-devel: ctrdata_1.17.1.zip, r-release: ctrdata_1.17.1.zip, r-oldrel: ctrdata_1.17.1.zip
macOS binaries: r-release (arm64): ctrdata_1.17.1.tgz, r-oldrel (arm64): ctrdata_1.17.1.tgz, r-release (x86_64): ctrdata_1.17.1.tgz
Old sources: ctrdata archive

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