This trial is designed to evaluate the use of the donated spinal stem cells for the treatment of motor neurone disease. The trial is being conducted by Emory University in Georgia and University of Michigan, in conjunction with Neuralstem Inc. Participants will receive different doses of the cells which were obtained from donated foetal tissue. Participants will be monitored for complications, as well as changes in their clinical condition. The trial expects to enrol 18 subjects by February 2014 by invitation only.