- The Clinical Trials Search Portal provides access to a central database containing the trial registration data sets provided by the registries listed on the right. It also provides links to the full original records.
- To facilitate the unique identification of trials, the Search Portal bridges (groups together) multiple records about the same trial.
- Please note: This Search Portal is not a clinical trials registry. How to register a trial
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Data sets from data providers are updated every Tuesday evening according to the following schedule:
Every week:
- Australian New Zealand Clinical Trials Registry, last data file imported on 17 November 2009
- ClinicalTrials.gov, last data file imported on 17 November 2009
- ISRCTN, last data file imported on 17 November 2009
Every 4 weeks:
- Chinese Clinical Trial Register, last data file imported on 17 November 2009
- Clinical Trials Registry - India, last data file imported on 17 November 2009
- German Clinical Trials Register, last data file imported on 17 November 2009
- Iranian Registry of Clinical Trials, last data file imported on 17 November 2009
- Sri Lanka Clinical Trials Registry, last data file imported on 17 November 2009
- The Netherlands National Trial Register, last data file imported on 17 November 2009
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