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Clinical Record Interactive Search (CRIS)

What is CRIS?

The Clinical Record Interactive Search (CRIS) system is a computer system that allows researchers at the NIHR Maudsley Biomedical Research Centre (BRC) to carry out research using information from South London and Maudsley NHS Foundation Trust clinical records. CRIS is safe and secure, and patients' personal details cannot be accessed by researchers who use it.

CRIS helps us to look at real life situations on a large scale. This means it's easier to see patterns and trends, like what treatments work for some and don't work for others.

Applications to access CRIS and the analyses carried out using CRIS are closely reviewed, monitored and audited by a CRIS Oversight Committee, which carries representation from the Maudsley Caldicott Guardian and is chaired by a service user. The CRIS Oversight Committee is responsible for ensuring all research applications comply with ethical and legal guidelines.

CRIS was developed with extensive involvement from service users and adheres to strict governance frameworks managed by service users. It has passed a robust ethics approval process acutely attentive to the use of patient data. The data is used in an entirely anonymised and data-secure format and all patients have the choice to opt-out of their anonymised data being used.

We believe CRIS can make a real and positive difference to future treatments and care.

Watch: Introducing the Clinical Record Interactive Search (CRIS)



CRIS: a Timeline

See a timeline of events throughout the history of CRIS.
Patients and the Public

Information for Patients and the Public

Find out how data is used and how you can get involved.

Information for Researchers

Resources to support researchers to access CRIS.


To find out more about some of the work underway, read our CRIS Blog.




Meet the staff who support CRIS infrastructure.

Search the CRIS projects database

Search for CRIS projects by name, title, or summary.

Our Published Papers

Research using CRIS published since 2009.

Watch: CRIS Research insights

Discover research being carried out using CRIS.


Data Linkages

CRIS Data Linkages

Find out how we ‘link’ information with other clinical sources securely.
Commercial Partnerships

Commercial Partnerships

Read about CRIS use in commercial partnerships.
NLP Service

Natural Language Processing (NLP) Service

The NLP Service helps to extract information from free text.