The register contains information about clinical trials conducted by industry and research institutions, whether they take place in one member state or several. The information is made public once the clinical trial has been authorised.
The register also includes the clinical trials contained in Paediatric Investigation Plans - the research and development program that generates data required to authorise a medicinal product for use in children. These clinical trials are published even if they are performed outside the EU.
The register is part of the overarching EU public database EudraPharm, which also centralises information on medicines authorised by the EU, such as the patient information leaflet.
Every year approximately 4000 clinical trials are authorised in the EU. Since most of them last two to three years, this means that around 10,000 trials are ongoing at any given time.