Retrieve and Analyze Clinical Trials Data from Public Registers

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Documentation for package ‘ctrdata’ version 1.24.1

• DESCRIPTION file.
• User guides, package vignettes and other documentation.
• Package NEWS.

Help Pages

ctrdata	Getting started, database connection, function overview
ctrdata-registers	Information on clinical trial registers
ctrdata-trial-concepts	Trial concepts implemented across registers
ctrFindActiveSubstanceSynonyms	Find synonyms of an active substance
ctrGenerateQueries	Generates queries that work across registers
ctrGetQueryUrl	Get register name and query parameters from search URL
ctrLoadQueryIntoDb	Load and store register trial information
ctrOpenSearchPagesInBrowser	Open register to show query results or search page
ctrShowOneTrial	Show full structure and all data of a trial
dbFindFields	Find names of fields in the database collection
dbFindIdsUniqueTrials	Get identifiers of deduplicated trial records
dbGetFieldsIntoDf	Create data frame of specified fields or trial concepts from database collection
dbQueryHistory	Show history of queries loaded into collection
dfMergeVariablesRelevel	Merge variables, keeping type where possible, optionally relevel factors
dfName2Value	Get value for variable of interest
dfTrials2Long	Convert data frame with trial records into long format
f.assignmentType	Calculate type of assignment to intervention in a study
f.controlType	Calculate type of control data collected in a study
f.externalLinks	Calculate the external references from a study's register record
f.hasResults	Calculate if a study's results are available
f.isMedIntervTrial	Calculate if study is a medicine-interventional study
f.isUniqueTrial	Calculate if record is unique for a study
f.likelyPlatformTrial	Calculate if study is likely a platform trial or not
f.numSites	Calculate number of sites of a study
f.numTestArmsSubstances	Calculate number of arms or groups with investigational medicines in a study
f.primaryEndpointDescription	Calculate details of a primary endpoint of a study
f.primaryEndpointResults	Calculate details of a study's primary endpoint analysis and testing
f.resultsDate	Calculate date of results of a study
f.sampleSize	Calculate sample size of a study
f.sponsorType	Calculate type of sponsor of a study
f.startDate	Calculate start date of a study
f.statusRecruitment	Calculate status of recruitment of a study
f.trialObjectives	Calculate objectives of a study
f.trialPhase	Calculate phase of a clinical trial
f.trialPopulation	Calculate in- and exclusion criteria and age groups
f.trialTitle	Calculate the title of a study