2925478 EudraCT European Clinical Trials Database 52 2925477 EudraCT European Union Drug Regulating Authorities Clinical Trials 39 2925481 EudraCT EU Drug Regulating Authorities Clinical Trials 1 2925479 EudraCT European Drug Regulatory Affairs Clinical Trials 1 2925480 EudraCT European Medicines Agency criteria for controlled trials 1