New hope is on the horizon for sufferers of multiple sclerosis.
A researcher at Wellington's Victoria University is leading a trial testing two commonly used antipsychotic medications in secondary progressive MS.
One-third of MS sufferers are affected by the form of the disease, for which there is no effective treatment. It can cause significant life-long disability.
The trial, under way at Wellington Regional Hospital, is recruiting for participants, said its leader, Victoria University immunologist Professor Anne La Flamme.
"The majority of agents used to treat the most common form of MS - relapsing remitting MS - were originally used for something else, like viral infections and leukaemia.