Other packages > Find by keyword >

Explore topics

By keyword . Oldest R packages . Newest R packages . Top downloaded R packages . Datasets . Archived R packages . Top downloaded last week . Top downloaded yesterday

ctrdata

Star Watch Copy Code

Retrieve and Analyze Clinical Trials Data from Public Registers

View on CRAN: Click here

Download and install ctrdata package within the R console
Install from CRAN:

 install.packages("ctrdata")

Install from Github:

 library("remotes")

                        install_github("cran/ctrdata")

Install by package version:

 library("remotes")

                        install_version("ctrdata", "1.26.0")

Attach the package and use:

 library("ctrdata")

Maintained by
Ralf Herold
[Scholar Profile | Author Map]

All associated links for this package

First Published: 2019-03-12

Latest Update: 2025-07-25

Description:

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', ), 'ClinicalTrials.gov' ('CTGOV', using the classic interface at , and 'CTGOV2', using the current interface at ), the 'ISRCTN' () and the 'European Union Clinical Trials Information System' ('CTIS', ). 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.

How to cite:

Ralf Herold (2019). ctrdata: Retrieve and Analyze Clinical Trials Data from Public Registers. R package version 1.26.0, https://cran.r-project.org/web/packages/ctrdata. Accessed 07 Mar. 2026.

Previous versions and publish date:

0.14.1 (2019-03-12 17:26), 0.17.0 (2019-03-27 22:50), 0.18.2 (2019-05-01 19:30), 0.18 (2019-04-11 23:57), 1.0.1 (2019-10-23 09:50), 1.0 (2019-10-16 23:50), 1.1 (2019-11-13 01:20), 1.2.1 (2020-05-18 18:40), 1.2 (2019-12-08 08:30), 1.3.0 (2020-07-27 11:50), 1.3.1 (2020-08-02 03:10), 1.3.2 (2020-10-05 09:20), 1.4.0 (2020-10-19 19:40), 1.4.1 (2020-11-03 22:30), 1.5.0 (2021-03-16 13:20), 1.5.1 (2021-03-21 16:50), 1.5.2 (2021-04-06 09:10), 1.5.3 (2021-04-20 00:10), 1.6.0 (2021-05-10 02:02), 1.7.0 (2021-07-25 15:30), 1.7.1 (2021-08-22 23:30), 1.8.0 (2021-11-22 00:00), 1.9.0 (2022-03-13 23:40), 1.9.1 (2022-04-24 16:30), 1.10.0 (2022-07-06 12:20), 1.10.1 (2022-07-24 23:50), 1.10.2 (2022-08-20 23:50), 1.11.0 (2022-11-02 23:20), 1.11.1 (2022-11-20 23:00), 1.12.0 (2023-03-26 10:30), 1.12.1 (2023-03-29 09:00), 1.13.0 (2023-04-24 14:20), 1.13.1 (2023-05-07 21:20), 1.13.2 (2023-05-26 11:30), 1.13.3 (2023-06-24 12:50), 1.14.0 (2023-07-16 23:40), 1.15.0 (2023-08-28 01:10), 1.15.1 (2023-08-30 11:10), 1.15.2 (2023-09-18 00:50), 1.16.0 (2023-11-24 16:40), 1.17.0 (2024-01-22 21:53), 1.17.1 (2024-02-05 00:30), 1.17.2 (2024-02-25 13:10), 1.18.0 (2024-05-13 22:53), 1.19.0 (2024-06-30 14:50), 1.19.1 (2024-07-18 21:00), 1.19.2 (2024-08-29 02:00), 1.19.3 (2024-09-22 18:10), 1.19.4 (2024-09-29 20:10), 1.19.5 (2024-11-10 18:10), 1.20.0 (2024-12-14 11:00), 1.21.0 (2025-03-09 22:50), 1.21.1 (2025-03-15 23:10), 1.22.0 (2025-04-14 19:50), 1.22.1 (2025-05-05 08:00), 1.22.2 (2025-05-17 16:20), 1.22.3 (2025-06-08 09:10), 1.23.0 (2025-07-02 22:40), 1.24.0 (2025-07-21 09:40), 1.24.1 (2025-07-25 12:10), 1.25.0 (2025-08-26 10:30), 1.25.1 (2025-12-08 02:00)

Other packages that cited ctrdata R package

View ctrdata citation profile

Other R packages that ctrdata depends, imports, suggests or enhances

View ctrdata dependency map

Complete documentation for ctrdata

View documentation PDF

Functions, R codes and Examples using the ctrdata R package

Some associated functions: ctrDb . ctrFindActiveSubstanceSynonyms . ctrGetQueryUrl . ctrLoadQueryIntoDb . ctrOpenSearchPagesInBrowser . ctrdata-registers . ctrdata . dbFindFields . dbFindIdsUniqueTrials . dbGetFieldsIntoDf . dbQueryHistory . dfMergeVariablesRelevel . dfName2Value . dfTrials2Long .
Some associated R codes: ctrFindActiveSubstanceSynonyms.R . ctrGetQueryUrl.R . ctrLoadQueryIntoDb.R . ctrLoadQueryIntoDbCtgov.R . ctrLoadQueryIntoDbCtgov2.R . ctrLoadQueryIntoDbCtis.R . ctrLoadQueryIntoDbEuctr.R . ctrLoadQueryIntoDbIsrctn.R . ctrOpenSearchPagesInBrowser.R . ctrRerunQuery.R . ctrdata-package.R . ctrdata-registers.R . dbFindFields.R . dbFindIdsUniqueTrials.R . dbGetFieldsIntoDf.R . dbQueryHistory.R . dfMergeVariablesRelevel.R . dfName2Value.R . dfTrials2Long.R . utils.R . zzz.R . Full ctrdata package functions and examples

Downloads during the last 30 days

Today's Hot Picks in Authors and Packages

prepdat

Preparing Experimental Data for Statistical Analysis

Prepares data for statistical analysis (e.g., analysis of variance ;ANOVA) by enabling the user to ...
Download / Learn more Package Citations See dependency

Maintainer: Ayala S. Allon (view profile)

RobPer

Robust Periodogram and Periodicity Detection Methods

Calculates periodograms based on (robustly) fitting periodic functions to light curves (irregularly ...
Download / Learn more Package Citations See dependency

Maintainer: Jonathan Rathjens (view profile)

didrooRFM

Compute Recency Frequency Monetary Scores for your Customer Data

This hosts the findRFM function which generates RFM scores on a 1-5 point scale for customer transa ...
Download / Learn more Package Citations See dependency

Maintainer: Satish Hariharan (view profile)

nextGenShinyApps

Craft Exceptional 'R Shiny' Applications and Dashboards with Novel Responsive Tools

Nove responsive tools for designing and developing 'Shiny' dashboards and applications. The scripts ...
Download / Learn more Package Citations See dependency

Maintainer: Obinna Obianom (view profile)

momentfit

Methods of Moments

Several classes for moment-based models are defined. The classes are defined for moment conditions d ...
Download / Learn more Package Citations See dependency

Maintainer: Pierre Chausse (view profile)

factoextra

Extract and Visualize the Results of Multivariate Data Analyses

Provides some easy-to-use functions to extract and visualize the output of multivariate data analys ...
Download / Learn more Package Citations See dependency

Maintainer: Alboukadel Kassambara (view profile)