Alyssa was enrolled on a clinical trial of a new treatment at London's Great Ormond Street Hospital for Children (GOSH) using genetically engineered immune cells from a healthy volunteer.
Praising this paper s partnership with Cancer Research UK, the Prime Minister said more needed to be done to beat childhood cancer and gave his full backing to the excellent cause.
A new form of gene therapy uses CRISPR editing to create T-cells that hunt cancer cells. Although still in its very early stages, the treatment offers hope for those suffering from untreatable cancer.