LONDON – “I really believe we can start using the word cure,” said the pioneer of chimeric antigen receptor T-cell (CAR T) therapy Carl June, as he revealed two leukemia patients he treated in a phase I trial have now been in remission for 10 years. Both patients with chronic lymphocytic leukemia achieved complete remission shortly after treatment in 2010. The genetic modification has remained detectable in their CAR T cells for more than 10 years of follow-up, June said, describing details of the case studies published in Nature Feb. 2.