A EudraCTEudraCT (European Union Drug Regulating Authorities Clinical Trials) is the European Clinical Trials Database of all interventional clinical trials of medicinal products commencing in the European Union from 1 May 2004 onwards. The EudraCT database has been established in accordance with Directive 2001/20/EC. number is needed in order to make a clinical trial application within Europe. Once a EudraCT number has been issued it is to be used as the unique reference for the clinical trial throughout Europe. The use of more than one EudraCT number to describe the same clinical trial is prohibited.