CAR-T is a novel way of treating cancer that is "personalised". It involves giving patients genetically modified immune cells. Cells are taken from a sample of the patient's blood and reprogrammed in the lab to create ones that are genetically coded to recognise and destroy the cancer cells. It has been shown in trials to cure some patients, even those with advanced cancers where other treatments have failed. It is the first in what is expected to be a rapidly expanding class of personalised cancer therapies available, initially for children, on the NHS in the UK. https://www.bbc.co.uk/news/health-45407514?