Package: cthist 2.1.11

cthist: Clinical Trial Registry History

Retrieves historical versions of clinical trial registry entries from <https://ClinicalTrials.gov>. Package functionality and implementation for v 1.0.0 is documented in Carlisle (2022) <doi:10.1371/journal.pone.0270909>.

Authors:Benjamin Gregory Carlisle [aut, cre]

# Install 'cthist' in R:

install.packages('cthist', repos = c('https://bgcarlisle.r-universe.dev', 'https://cloud.r-project.org'))

On CRAN:

Last updated 4 months agofrom:222522089f. Checks:OK: 7. Indexed: yes.

Help page	Topics
Download a table of dates on which a ClinicalTrials.gov registry entry was updated	clinicaltrials_gov_dates
Mass-download registry entry historical versions from ClinicalTrials.gov	clinicaltrials_gov_download
Download a registry entry version from ClinicalTrials.gov	clinicaltrials_gov_version
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.	extract_publications
Interpret downloaded version histories to determine how long in days a trial had any given overall status	overall_status_lengths