ISRCTN registration
Free International Standard Randomised Controlled Trial Number (ISRCTN) registration for eligible NIHR CRN Portfolio studies.
The ISRCTN is a simple numeric system for the unique identification of clinical trials worldwide. Go to the ISRCTN register website for more information.
Why register
ISRCTN registration is not mandatory but the DH registration of clinical trials and public access to findings policy strongly encourages voluntary registration of trials and other studies other well designed studies on publically accessible registers. ISRCTN registration allows you to:
- Comply with international guidelines from the World Health Organisation (WHO), International Committee of Medical Journal Editors (ICMJE) and Consolidated Standards of Reporting Trials (CONSORT): ISRCTN is fully compliant
- Register any trial and study design regardless of country or healthcare area: ISRCTN is open to all
- Register trials in bulk or individually: ISRCTN offers convenience and flexibility to researchers and research funders/sponsors
- Keep details of your research up-to-date: ISRCTN records can be freely updated on request, making sure they are not missed out by systematic reviewers
- Link your trials to their results: Trial IDs can be quoted in article abstracts and indexed by PubMed, allowing publications to link back to their initial registration
- Maximise exposure for your research: ISRCTN content is fully and openly accessible. UK trial records are automatically fed into the WHO international platform, ensuring international as well as national visibility
- Join a growing number of researchers and funding bodies using the ISRCTN including: The Department of Health in England and Wales, the UK Medical Research Council, the Wellcome Trust, the Canadian Institutes of Health Research.
How to register
Register new studies included in the portfolio database using the Modify a Study Wizard function when you provide study information.
On the Basics page, a message next to the question “Would you like to register this study for an ISRCT number" will provide further information on whether your study is eligible for free registration.
