UK spent only £15m on brain tumour research after promising £40m

Exclusive: MPs say research system unfit for purpose as mother of boy who died calls for answers on missing millions'

Ministers have spent only 15m in five years on research into tackling brain tumours, the biggest killer of adults and children under 40, while boasting about delivering 40m, MPs have found.

The revelation emerged in a damning report seen by the Guardian that is due to be published this week by the all-party parliamentary group (APPG) on brain tumours after a two-year inquiry.