Alyssa had undergone chemotherapy and a bone marrow transplant - but her leukaemia remained. She then received genetically-edited T-cells in the first use of the therapy at Great Ormond Street.
World s First Use of CAR T Cells to Treat Resistant Leukemia at GOSH miragenews.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from miragenews.com Daily Mail and Mail on Sunday newspapers.
A 13-year-old girl whose leukaemia had not responded to other treatments now has no detectable cancer cells after receiving a dose of immune cells that were genetically edited to attack the cancer