"This research is one of the first clinical trials to assess whether a drug can improve brain function in people with an inherited disorder.
"The potential benefits of this treatment include an improved quality of life for affected patients and wider benefits for their families and carers.
"If it works it will benefit patients directly and could provide clues as to whether this class of drugs (called mTOR inhibitors) might have wider benefits in problems like autism."
More top news
An animal centre in north Wales is appealing to the public to donate blankets for their rescue dogs after running low on stock.
Sunshine and showers is the order of the day especially in central and northern parts. A chilly night but Thursday set to be the best day.
Tributes have been paid to a physiotherapist who died at the hospital where he worked after getting into difficulty off Gower yesterday.