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Universal Trial Number request

The aim of the Universal Trial Number (UTN) is to help uniquely identify clinical trials registered in WHO Primary Registries, and displayed on the WHO International Clinical Trials Registry Platform's (ICTRP) Search Portal.

Please obtain a UTN as soon as the first version of the protocol has been drafted, or earlier if appropriate.

Apply for a UTN

  Requestor's name:  
  Requestor's email:  
  Requestor's organization: 
(maximum 50 characters)

Disclaimer: Trials posted on this search portal are not endorsed by WHO, but are provided as a service to our users. In no event shall the World Health Organization be liable for any damages arising from the use of the information linked to in this section. None of the information obtained through use of the search portal should in any way be used in clinical care without consulting a physician or licensed health professional. WHO is not responsible for the accuracy, completeness and/or use made of the content displayed for any trial record.
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