cthist-package: cthist: Clinical Trial Registry History

In cthist: Clinical Trial Registry History

cthist: Clinical Trial Registry History

Description

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) \Sexpr[results=rd]{tools:::Rd_expr_doi("10.1371/journal.pone.0270909")}.

Details

This package provides 4 functions for mass-downloading and interpreting historical clinical trial registry entry data from ClinicalTrials.gov

The functions for downloading clinical trial registry data from
DRKS that were provided in versions 1.0.0 to 1.3.0 have been
deprecated due to the re-writing of drks.de in a manner that
broke the previous implementation of web-scraping

clinicaltrials_gov_dates() downloads the dates on which clinical trial registry entries were updated from ClinicalTrials.gov

clinicaltrials_gov_version() downloads a specified historical version of a clinical trial registry entry from ClinicalTrials.gov

clinicaltrials_gov_download() mass-downloads clinical trial registry entry versions for one or many trials on ClinicalTrials.gov

extract_publications() interprets a data frame provided by clinicaltrials_gov_download() and provides a new data frame with one row per publication of the type specified indexed by ClinicalTrials.gov per clinical trial registry history version.

overall_status_lengths() interprets a data frame provided by clinicaltrials_gov_download() or clinicaltrials_gov_dates() and provides a new data frame that indicates how many days were spent in each overall status.

Author(s)

Maintainer: Benjamin Gregory Carlisle [e-mail] (ORCID)

References

Carlisle, BG. Analysis of clinical trial registry entry histories using the novel R package cthist. medRxiv, 2022. doi: 10.1101/2022.01.20.22269538

See Also

Useful links:

• https://github.com/bgcarlisle/cthist

• Report bugs at https://github.com/bgcarlisle/cthist/issues

cthist documentation built on Sept. 11, 2024, 5:31 p.m.