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NHS DigiTrials Service Transparency Notice

How we collect, process, use and protect your data and meet our obligations in line with General Data Protection Regulations (GDPR). 


The purposes for processing personal data

NHS England is enhancing its support for health and life sciences research by developing a service called NHS DigiTrials. This service will help clinical trials progress more easily at every stage, using the data that NHS England already collects from health and care organisations across England.

The NHS DigiTrials service will:

  • increase opportunities for the widest possible group of individuals to participate in vital clinical research to address large scale public health risks
  • improve the diversity of research cohorts, so that those who are offered the opportunity take part in research become more representative of the population
  • support faster participant recruitment to trials to find answers to important clinical questions more rapidly
  • reduce the cost of running clinical trials and other important research - this will provide particular benefit for publicly funded studies such as those which have run during the COVID-19 global pandemic
  • support a thriving UK life sciences research sector by reducing the costs of running trials and attracting more research to the UK
  • ultimately improve NHS services and access to evidence-based diagnostics, vaccines and treatments for the wider population

The NHS DigiTrials service aims to do this by providing relevant data held by NHS England in a timely manner to healthcare research studies (including clinical trials) within the bounds of robust governance, including data protection requirements and information security.

Each specific element of the NHS DigiTrials service will process the data that NHS England holds in different ways:

Feasibility service

Fully anonymised and aggregate data will be processed to improve the assessment of clinical trial feasibility – supporting improved planning and locating of clinical trials in the UK.

Recruitment support service

Identifiable patient data will be processed for approved1 research. The aim of this service is to deploy data analysis and linkage to provide data to research projects in the form of lists of potential research participants who meet the inclusion criteria for the purposes of inviting them to join a trial.

NHS England is engaging in proof-of-concept for the pilot recruitment support service, private beta testing and optimisation activity until 31 March 2026 to support wider and more diverse recruitment to clinical trials. The activity will be limited to no more than 22 trials of which at least 4 will be large scale and each will offer significant potential to improve health outcomes. These pilot studies will focus on research into the early diagnosis and treatment of conditions with a significant health burden including cancer, cardiovascular disease, diabetes and stroke. The pilots will also provide opportunities for public and patient engagement and behavioural insights testing to optimise the approach.

Communication services

We have received feedback from patients that they would like to hear about the results of the trials they took part in. This service will process the identifiable patient data of participants who have consented to receive such information so that those participants can be provided with ongoing information about the trial.

Outcomes services

Identifiable patient data will be processed to support research teams’ information about the impact of an intervention or to support the long term follow up of research participants who have consented to be part of a trial or for other approved research.

Read more about NHS DigiTrials.

1For research to be considered as Approved Research, it must have completed relevant HRA processes and the DARS application process.


Types of personal data we are processing

The types of personal data that will be processed will be dependent upon the nature of the trial and be specific to the needs of the trial.   However, to identify people who are to be invited to take part in a trial and to update participants about the trial they are already enrolled on or for follow up analysis, we will likely need:

  • demographic data – patient name, date of birth, sex, NHS number and contact details such as address, telephone numbers and email address
  • health information – information relating to the health and care patients have been provided - this may include information about medical conditions (in the form of condition codes held in central NHS records)

Controller of personal data

Under the UK General Data Protection Regulation 2018 (UK GDPR), NHS England is the controller of personal data where we are directed or requested to process this for NHS DigiTrials purposes.

Where we share data, NHS England is usually the sole controller, except where the sharing of the data is with a 3rd party provider for the purposes of contacting a member of the public. In this case NHS England is acting as a Data Processor.

The trial organisation is the Data Controller for the data they collect directly from the participants that they have enrolled in the research study or clinical trial.



Who we share information with

NHS England will share personal data with:

  • approved researchers outside NHS England (subject to a rigorous governance process), including for the purposes of carrying out clinical trials (for example, to invite you to join a trial)
  • 3rd party providers (such as a mailing provider) for the purposes of contacting a member of the public. This will be to invite patients to participate in the trial or share information about a trial that patients have already enrolled in and consented to receive such communications

We will only share data with other organisations where this is lawful and in line with data protection law.

Data will be shared with the clinical research teams as part of the service that we offer to our customers: recruitment support, communications or outcomes (follow up) activity. Our feasibility service does not provide any identifiable data to researchers.

As outlined above the NHS DigiTrials service uses the NHS England Data Access Request Service (DARS) to deliver its pilot clinical trial services. The information about why and how we process data to deliver NHS DigiTrials services can be found at Data Access Request Service (DARS) online: GDPR information - NHS Digital.


How long we keep your personal data for

Data shall be retained for no longer than 20 years in accordance with the NHS Records Management Code of Practice 2021.

Other organisations with whom we share your personal data have obligations to keep it for no longer than is necessary for the purposes for which we have shared your personal data. Information about this will be provided in their transparency or privacy notices which are published on their websites.


Where we store the data

NHS England only stores and processes personal data for this service within the United Kingdom. Clinical trial customers that we share your data with will only share the data for limited and specific purposes. Typically, for clinical trials, this sharing will be for audit or regulatory purposes with the trial sponsor organisation or with regulatory bodies (such as the MHRA in the UK, EMEA in Europe or the FDA in the USA) as part of the medicines licensing process.

Fully anonymous data, for example, statistical data (which does not allow you to be identified), may be stored and processed outside of the UK.


Patient's rights about personal data

To read more about the health and care information NHS England collects, our legal basis for collecting this information and what choices and rights you have, see how we look after your health and care information, and our NHS England transparency notice.

We may make changes to this transparency notice. If we do, the 'last updated' date at the top of the notice will also change. Any changes to this notice will apply immediately from the date of any change.

Last edited: 26 March 2025 9:33 am