Check your contact details

If you’ve moved home since registering for the trial, please update your contact address. This will help the trial team send you a reminder letter when it’s time to book your next appointment.

You can change your contact details at any time. You will be asked to confirm your contact details before you book your next appointment.

Please call freephone 0800 030 9245 or use the link below to book your appointment.

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Registration is closed

The NHS-Galleri trial is not accepting new participants at this time — registration is closed.

Before you start

To update your contact information, you will need:

  • Your NHS number
  • Your name
  • Your date of birth

Your NHS number is a 10 digit number, like 485 777 3456. It is on any letter you receive from the NHS.

If you do not know your NHS number you can use the following service to get it.

If you still live in England but are not registered with a GP in one of the areas where the trial is taking place, you can still take part but may need to travel further to attend your next appointment.

If you have moved out of England, you will be unable to attend your next appointment. This is because the trial is run in partnership with NHS England only. However, data and samples that have already been collected will be used and will continue to help research. Please contact the trial team for more information.