Clinical trial portals
• The U.S. National Institutes of Health registry and results database of publicly and privately supported clinical studies of human participants conducted around the world.

EMA clinical trial registry
• The European Medicines Agency has launched an online clinical trial register providing public access to information on clinical trials for medicinal products authorised in the European Union.
Short link: 

Long link:;jsessionid=DukCALeJROdXpTUKJmwyc7mDu7ZJwG-P4Hg99mpcVKcp-IcA0PDq!1345232029\

• The ITHANET portal is a community website dedicated to thalassaemia and other haemoglobinopathies supplying a comprehensive list of undergoing clinical trials.