Researchers from Addenbrookes Hospital in Cambridge previously concluded that the tolerance of some peanut allergy sufferers could be built up over time, to cope with up to five nuts without ill effect or anaphylaxis.
The new study, which will take 3 years and cost £1m, will involve over 100 children aged 7 to 17 years. The children will be given daily doses of peanut flour starting from 1mg in yoghurt.
If successful, it could show the way to new methods of treatment that would mean they would no longer have to scrutise food labels or worry about trace levels in foods.
The researchers have warned that peanut allergy sufferers and parents should not attempt to build up tolerance at home.