Clinical Trial Registry History

Documentation for package ‘cthist’ version 2.1.11

clinicaltrials_gov_dates	Download a table of dates on which a ClinicalTrials.gov registry entry was updated
clinicaltrials_gov_download	Mass-download registry entry historical versions from ClinicalTrials.gov
clinicaltrials_gov_version	Download a registry entry version from ClinicalTrials.gov
extract_publications	Takes a data frame of the type provided by 'clinicaltrials_gov_download()' and returns a new data frame containing one row per publication of the publication type specified indexed on ClinicalTrials.gov for every version of the clinical trial record provided.
overall_status_lengths	Interpret downloaded version histories to determine how long in days a trial had any given overall status