Alyssa, whose family do not wish to give their surname, was diagnosed with T-cell acute lymphoblastic leukaemia in May 2021.She added: ‘Hopefully, this can prove the research works and they can offer it to more children – all of this needs to have been for something.’Scientists now aim to recruit up to 10 patients who have T-cell leukaemia, just like Alyssa, and have exhausted all conventional options for the clinical trial into the new treatment.Professor Waseem Qasim, consultant immunologist at GOSH, said: ‘This is a great demonstration of how, with expert teams and infrastructure, we can link cutting-edge technologies in the lab with real results in the hospital for patients.‘It’s our most sophisticated cell engineering so far and paves the way for other new treatments and ultimately better futures for sick children.‘We have a unique and special environment here at GOSH that allows us to rapidly scale up new technologies and we’re looking forward to continuing our research and bringing it to the patients who need it most.’Get in touch with our news team by emailing us at webnews@metro.co.uk."