Trials to Publications

Enter a valid NCT number of a registered trial from clinicaltrials.gov:

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Candidate Articles

Basic Search
Advanced Search

For a given registered clinical trial in ClinicalTrials.gov, this tool ranks pubmed articles according to the likelihood that they present trial outcome results for that trial.

The basic search option will compute similarity scores for the most similar 5,000 articles from a pre-curated set of articles based on intervention, condition, and overall word matches. The advanced search option allows an editable PubMed query to be used as a candidate set.
View results from a previous job:

Batch Processing

A list of NCT numbers may be pasted below, either comma separated or one trial per line:

Reverse lookup by Article

PMID: Probability Threshold: This searches our pre-computed database, so it may not include the most recent trials and publications.

For any questions, problems or comments, please contact Neil Smalheiser neils@uic.edu.

References

Smalheiser NR, Holt AW (2021). A Web-based Tool for Automatically linking Clinical Trials to their Publications. AmMed Inform Assoc. 2022. doi: 10.1093/jamia/ocab290
Smalheiser NR, Holt AW (2025). Distribution of trial registry numbers within full-text of PubMed Central articles: implications for linking trials to publications and indexing trial publication types. Trials. 2025. doi: 10.1186/s13063-025-08741-w
Holt AW, Smalheiser NR. (2026). Enhancing the scope of the Trials to Publications tool by identifying ClinicalTrial.gov registry mentions in full-text. Trials. 2026 Apr 25. doi: 10.1186/s13063-026-09747-8.

Last modified: June 28, 2021