In 2022, researchers delivered world’s first gene therapy made using ‘base-editing’ to a 13-year-old girl with ‘incurable’ T-Cell leukaemia. Now a further 8 children and 2 adults have undergone treatment. 82% achieved very deep remissions. 63% remain disease-free 3 years later and off treatment.

‘Ready-made’ T-cell **gene therapy tackles ‘incurable’ T-Cell leukaemia**

A groundbreaking new treatment using gene-edited immune cells, developed by scientists at Great Ormond Street Hospital (GOSH) and University College London (UCL), has shown promising results in helping children and adults fight a rare and aggressive form of blood cancer called T-cell acute lymphoblastic leukaemia (T-ALL).

The world-first gene therapy uses advanced gene editing technology with immune cells to treat previously untreatable T-cell leukaemia and help patients achieve remission, offering new hope for families facing this aggressive cancer.

**In 2022, researchers from GOSH and UCL delivered the world’s first treatment made using ‘base-editing’ to a 13-year-old girl** from Leicester, Alyssa. She kindly shared her story with us in 2022.

**Now a further eight children and two adults have undergone the treatment** at GOSH and King’s College Hospital (KCH).

The results of the clinical trial have been published in the New England Journal of Medicine and presented at the American Society of Hematology Annual Meeting 2025. Key findings from the study include:

– **82% of patients achieved very deep remissions** after BE-CAR7, enabling them to proceed to stem cell transplant without disease

– **63% remain disease-free, with the first patients now three years disease-free and off treatment**

For those interested, here’s the link to the peer reviewed journal article:

https://www.nejm.org/doi/full/10.1056/NEJMoa2505478

Now all that needs to happen is someone needs to bribe RFK jr in order to get approval from the FDA.