Medical and health-related trials registers and research registers

Resources recording ongoing and completed clinical trials are increasing and they represent challenges in identification and rapid searching. It is difficult to know how to efficiently search each resource. This resource provides a listing of trials and research registers and a quick reference guide to the search basics for each resource.


Ongoing trials and other research and research results are important to a wide range of people: patients, researchers, funders and the commercial sector.


This web site was developed following three training days in 2009 presented by Julie Glanville (York Health Economics Consortium) and Carol Lefebvre (Independent Information Consultant). Course participants assisted with the preparation and checking of the data and are gratefully acknowledged.


This website is regularly updated by Julie Glanville and Carol Lefebvre. We are grateful to Danielle Varley for past help in editing the website.


If you would like to suggest registers to add to this resource please send the details to Julie Glanville at