The investigation is a multi-year observational study following the completion of the open-label, single dose Phase I/II study involving transplantation of allogeneic HuCNS-SC cells into 12 subjects with thoracic spinal cord injury.~Subjects will be monitored at routine intervals for safety and preliminary efficacy for four years. The LTFU study will commence following the one year post-transplantation termination visit of the Phase I/II investigation.
The purpose of this study is to determine the long term safety and preliminary efficacy of intramedullary transplantation of HuCNS-SC cells in subjects with thoracic spinal cord trauma.