All other treatments for Alyssa's leukaemia had failed.
So doctors at Great Ormond Street Hospital used "base editing" to perform a feat of biological engineering to build her a new living drug.
Six months later the cancer is undetectable, but Alyssa is still being monitored in case it comes back.

#science #medicine #health #cancer #leukaemia

bbc.co.uk/news/health-63859184

Base editing: Revolutionary therapy clears girl's incurable cancer

New way of altering DNA is used to engineer an "exciting", experimental therapy for a 13-year girl.

^{By James Gallagher (BBC News)}