Alzheimer's drug results may herald 'radical breakthrough'

Eagerly awaited data on the most promising drug in treating Alzheimer's disease is set to be unveiled later.

Researchers will reveal results of studies into the use of solanezumab, which patients and scientists hope could be the first medication to slow the pace of brain decline.

Existing drugs help with symptoms but nothing stops the death of brain cells.

Dr Eric Karran, from Alzheimer's Research UK, said the drug could prove to be "hugely significant".