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Comparison of Availability of Trial Results in ClinicalTrials.gov and PubMed

Publication

Published on: March 30, 2023

Published in: JAMA

Description: This study examined the proportion and timing of results dissemination for registered trials by data source (i.e., ClinicalTrials.gov and PudMed) and funder type.

Timely dissemination of clinical trial results is essential for improving transparency and ensuring that findings are available to inform evidence-based medicine.1 Prior analyses of results dissemination assessed PubMed-indexed publications for National Institutes of Health (NIH)–funded trials completed by 2008; trial results published by academic and industry funders with results posted on ClinicalTrials.gov in 2012; and published or posted results of industry- and nonindustry-funded trials completed by 2015. In this study, the proportion and timing of results dissemination for registered trials were examined by data source (ie, ClinicalTrials.gov5 and PubMed) and funder type…