Link a registered trial to publication
Return from ICTRP to the original registry, keep secondary IDs and search for an article by trial ID.
Documents to open in this workflow
This order suggests a starting point; revisit a step if identifiers, dates or versions disagree. Access and reuse terms depend on each service.
WHO ICTRP — registre des essais
Discover ongoing and completed trials indexed from multiple registries in ICTRP.
What to record
Registered trial, protocol and results available separately. Document or deposit version, publication and modification dates.
Source-specific check
Return to the source registry and trial ID. Two records from one trial are not two studies; registration does not establish published results or effectiveness.
Open source portalClinicalTrials.gov
Search public clinical-study records and examine identifiers, declared protocols, dates and available results.
What to record
NCT, stated responsible party, status, update dates, protocol and available results.
Source-specific check
Missing results are not negative results; date the record before comparing protocol and publication.
Open source portalPubMed
Find biomedical and life-sciences citations and abstracts, then follow full-text links where available.
What to record
PMID, available DOI, article type, date, text read and correction notices.
Source-specific check
Retain relevant corrections; an abstract alone cannot establish the full method.
Open source portal
Matching condition
Link primary and secondary identifiers, protocol, intervention, population and exact article.
If results disagree
A completed record without published results differs from negative findings; check available documents.
Output to produce
Map of trial, registries and linked publications.
Separate documentary evidence, demonstrated links between documents and remaining inference. State the owner and review trigger.
Supporting methods
Producer references
Matching table to complete
This is a blank template, not a research result. Record the exact item and observation for each source before making the decision.
| Source | Document or exact URL | Date and version | Observation and passage | Scope and limit | Link established or unestablished |
|---|---|---|---|---|---|
| WHO ICTRP — registre des essais | To record | To record | To record | To record | To record |
| ClinicalTrials.gov | To record | To record | To record | To record | To record |
| PubMed | To record | To record | To record | To record | To record |
Frequently asked questions
What link should be checked before matching results?
Link primary and secondary identifiers, protocol, intervention, population and exact article.
What if sources appear to contradict each other?
A completed record without published results differs from negative findings; check available documents.
Do the listed portals provide independent confirmation?
Not necessarily. Identify the producer and underlying document. Two interfaces distributing one item can check transcription but do not establish a fact independently twice.