In all four patients NTCELL treatment has stopped the progression of Parkinson’s disease as measured by globally accepted and validated neurological rating scales. In all four patients the 42 week post-implant data show there is a clinically and statistically significant improvement in the patients’ neurological score from their pre-implant baseline. That improvement is equivalent to approximately 5 years of Parkinson’s disease remission and is maintained 74 weeks after NTCELL transplant in the first patient.