- 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. More information
- Please note: This Search Portal is not a clinical trials registry. How to register a trial
- It is possible to export the results of the search into XML. More information
- The Crawling service is currently not available. If you wish to use this service in 2025 or when it is made available please fill this survey
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- Australian New Zealand Clinical Trials Registry, last data file imported on 17 February 2025
- Chinese Clinical Trial Registry, last data file imported on 24 February 2025
- ClinicalTrials.gov, last data file imported on 24 February 2025
- Clinical Trials Information System (CTIS), last data file imported on 3 February 2025
- EU Clinical Trials Register (EU-CTR), last data file imported on 24 February 2025
- ISRCTN, last data file imported on 24 February 2025
- The Netherlands National Trial Register, last data file imported on 24 February 2025
- Brazilian Clinical Trials Registry (ReBec), last data file imported on 3 February 2025
- Clinical Trials Registry - India, last data file imported on 3 February 2025
- Clinical Research Information Service - Republic of Korea, last data file imported on 3 February 2025
- Cuban Public Registry of Clinical Trials, last data file imported on 3 February 2025
- German Clinical Trials Register, last data file imported on 3 February 2025
- Iranian Registry of Clinical Trials, last data file imported on 3 February 2025
- Japan Registry of Clinical Trials (jRCT), last data file imported on 6 January 2025
- Pan African Clinical Trial Registry, last data file imported on 3 February 2025
- Sri Lanka Clinical Trials Registry, last data file imported on 3 February 2025
- Thai Clinical Trials Registry (TCTR), last data file imported on 3 February 2025
- Peruvian Clinical Trials Registry (REPEC), last data file imported on 3 February 2025
- Lebanese Clinical Trials Registry (LBCTR), last data file imported on 21 October 2024
- International Traditional Medicine Clinical Trial Registry (ITMCTR), last data file imported on 3 February 2025
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