How we use your data

The Add Aspirin study is aiming to find out whether taking aspirin daily for 5 years after treatment for an early stage cancer (cancer that has not spread widely), stops or delays the cancer coming back. University College London (UCL), based in the United Kingdom, is the sponsor for this study in the United Kingdom and Republic of Ireland (Tata Memorial Centre is the sponsor for the trial in India). University College London, through the Medical Research Council (MRC) Clinical Trial Unit at UCL, will be using information from you and your medical records in order to undertake this study and will act as data controller for this study. UCL will be responsible for looking after your information and using it properly. UCL will keep identifiable information about you for 25 years after the study has finished.

Your rights to access, change, or move your information, are limited; as we need to manage your information in specific ways in order for the research to be reliable and accurate. If you withdraw from the study, we will keep the information about you that we have already obtained. To safeguard your rights, we will use the minimum personally – identifiable information possible.

You can find out more about how we use your information at

Your site will collect information from you and your medical records for this research study in accordance with our instructions.

For UK Participants Only:

Your hospital will use your name, NHS number and contact details to contact you about the research study, and make sure that relevant information about the study is recorded for your care, and to oversee the quality of the study. Individuals from UCL and regulatory organizations may look at your medical and research records to check the accuracy of the research study. Your hospital will pass your name, postcode and NHS number to UCL along with the information collected from you and your medical records. The people who analyse the information will not be able to identify you and will not be able to find out your name, NHS number or contact details.

Your hospital will keep identifiable information about you from this study for at least 25 years after the study has finished.

UCL will collect information about you, for research, from your hospital site, NHS Digital, Public Health England (PHE) and the National Cancer Registration and Analysis Service (NCRAS). This information will include your name, postcode and NHS number and health information. This health information is regarded as a special category of information as defined by the General Data Protection Regulation (GDPR). The legal basis for collection of sensitive and personal data is it will be used for research purposes in a task in the public interest. We will use this information collected from PHE to track your long term health status and you can find out more information about PHE at

Where information could identify you, the information will be held securely with strict arrangements about who can access the information.


Contact Details

If you are an individual who is interested in taking part in Add-Aspirin, please talk to your doctor who will be able to consider whether you are suitable for the trial.

For healthcare professionals

Please log into the members area for Add-Aspirin contact details.

Register Interest

For healthcare professionals

If your centre would like to recruit participants to Add-Aspirin, contact us:

Register a participant

From Monday 16th March 2020, to RANDOMISE a participant in the UK please call +44 (0)20 7670 4925, rather than the usual randomisation line.

To RANDOMISE a participant from Republic of Ireland or India only, please use the 'Register a participant' link above to randomise online. Please make sure to press 'Randomise' once logged in to the server.

Unblind a participant in the UK

Unblind a participant in the RoI

Unblind a participant in India