- 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
- Crawling the ICTRP database now requires a username/password. To request access to the crawling pages please send an email to ictrpinfo@who.int (This service is now enabled)
- A new field called 'Prospective registration' has been added to the ICTRP database, More details about this new field can be found here
- The WHO Database of Regulatory Information Tracking of Clinical Trials Registration & Ethics Committees (REGTRAC) is now online here
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Data sets from data providers are updated every Friday evening according to the following schedule:
Every week:
- Australian New Zealand Clinical Trials Registry, last data file imported on 1 March 2021
- Chinese Clinical Trial Registry, last data file imported on 1 March 2021
- ClinicalTrials.gov, last data file imported on 1 March 2021
- EU Clinical Trials Register (EU-CTR), last data file imported on 19 January 2021
- ISRCTN, last data file imported on 1 March 2021
- The Netherlands National Trial Register, last data file imported on 1 March 2021
Every 4 weeks:
- Brazilian Clinical Trials Registry (ReBec), last data file imported on 23 February 2021
- Clinical Trials Registry - India, last data file imported on 23 February 2021
- Clinical Research Information Service - Republic of Korea, last data file imported on 23 February 2021
- Cuban Public Registry of Clinical Trials, last data file imported on 22 February 2021
- German Clinical Trials Register, last data file imported on 22 February 2021
- Iranian Registry of Clinical Trials, last data file imported on 23 February 2021
- Japan Primary Registries Network, last data file imported on 23 February 2021
- Pan African Clinical Trial Registry, last data file imported on 22 February 2021
- Sri Lanka Clinical Trials Registry, last data file imported on 22 February 2021
- Thai Clinical Trials Registry (TCTR), last data file imported on 3 March 2021
- Peruvian Clinical Trials Registry (REPEC), last data file imported on 25 February 2021
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