Cookies on this website
We use cookies to ensure that we give you the best experience on our website. If you click 'Continue' we'll assume that you are happy to receive all cookies and you won't see this message again. Click 'Find out more' for information on how to change your cookie settings.

If you have a question about the PRINCIPLE Trial, you can contact the trial team directly:

Email: principle@phc.ox.ac.uk
Tel: 0800 138 0880

If you are a health professional, click here