Widely prescribed anti-cholesterol drugs are being tested to see whether they could be used to help treat multiple sclerosis (MS).
Experts have launched an assessment to see whether cheap statins may become an MS treatment as well as lowering cholesterol.
The six year, £6m trial starting later this year will involve 1,180 people and will test simvastatin in people with the secondary progressive form of MS.
People with this form of MS have limited options as there are currently no licensed treatments that can slow or stop disability progression.
Lead researcher Dr Jeremy Chataway from University College London's Institute of Neurology said: "This drug holds incredible promise for the thousands of people living with secondary progressive MS in the UK, and around the world."