A registry and results database of federally and privately supported clinical trials conducted in the U.S. and around the world. Gives information about a trial's purpose, who may participate, locations, and phone numbers.
A numeric system for the unique identification of randomised controlled trials worldwide. The ISRCTN Register also accepts registration of other forms of studies designed to assess the efficacy of health-care interventions.
Allows users to search for information on clinical trials in European Union (EU) member states and the European Economic Area (EEA) and clinical trials which are conducted outside the EU/EEA if they form part of a paediatric investigation plan (PIP).
This Clinical Trials Search Portal provides access to a central database containing the trial registration data sets provided by various international registries. Hosted by the World Health Organization.