| clinicaltrials_gov_version {cthist} | R Documentation |
Download a registry entry version from ClinicalTrials.gov
Description
Download a registry entry version from ClinicalTrials.gov
Usage
clinicaltrials_gov_version(nctid, versionno = 0)
Arguments
nctid |
A character string including a well-formed ClinicalTrials.gov NCT Number, e.g. "NCT00942747". (A capitalized "NCT" followed by eight numerals with no spaces or hyphens.) |
versionno |
An integer version number, e.g. 3, where 0 is the earliest version of the trial in question, 1 is the next most recent, etc. (Please note that this differs from the convention used in cthist v. <= 1.4.2, in which 1 is the earliest version of the trial in question.) If no version number is specified, the first version will be downloaded. If -1 (negative one) is specified, the latest version will be downloaded. |
Value
A list containing the overall status, enrolment, start date, start date precision (month or day) primary completion date, primary completion date precision (month or day), primary completion date type, minimum age, maximum age, sex, accepts healthy volunteers, inclusion/exclusion criteria, outcome measures, overall contacts, central contacts, responsible party, lead sponsor, collaborators, locations, reason why the trial stopped (if provided), whether results are posted, references data, organization identifiers and other secondary trial identifiers.
Examples
version <- clinicaltrials_gov_version("NCT00942747", 1)