Clinical Trials in the European Union - EMA

"This website supports the running of clinical trials for human medicines in the European Union (EU) and European Economic Area (EEA)....

The regulation of clinical trials aims to ensure that the rights, safety and well-being of trial subjects are protected and the results of clinical trials are reliable and informative.

• Clinical trial sponsors (usually researchers or companies that oversee a clinical trial and collect and analyse the data) can use this website to apply for permission to run a clinical trial anywhere in the EU/EEA including in multiple countries, provide updates to national regulators about a trial, and submit trial results.
• EU/EEA national regulators can use it to process clinical trial applications collaboratively, request further information, authorise or refuse a trial and oversee an authorised trial.
• Anybody can use it to view information on clinical trials in the EU and EEA from 31 January 2022.

Clinical trial sponsors and EU/EEA national regulators work in the Clinical Trials Information System, the system underpinning this website...."