The National Research Register (NRR) is a database of ongoing and recently completed research projects funded by, or of interest to, the United Kingdom's National Health Service (NHS). It contains descriptions of research projects but doesn't include research results, although links to the Research Findings Register and to author abstracts on PubMed are included where possible.

About 350 organisations (NHS Trusts, national and regional funding programmes, universities, charities) in England, Scotland and Wales contribute to the NRR.

Update Software collects updated project information from the contributing organisations and merges it with existing records every three months. As a result we publish a new issue of the NRR every three months on behalf of the Department of Health.

We publish the NRR online and on CD-ROM using indexing and display software developed by ourselves. This allows fast and sophisticated searching of the records using both free text and Medical Subject Headings (MeSH) controlled vocabulary.

We also work in collaboration with the Department of Health, the NHS R&D Forum and Current Controlled Trials Ltd to identify randomised controlled trials wholly-funded at NHS Trust level. These trials are allocated International Standard Randomised Controlled Trials Numbers (ISRCTNs). They are also listed in the NHS Trusts Clinical Trials Register published by Current Controlled Trials in the metaRegister of Controlled Trials (mRCT).