Question normal

Parkinson disease is somewhat rare among the neurodegenerative diseases because of its wide therapeutic armamentarium. Nevertheless, as the disease progresses, these treatments grow less effective and the burden of disability augments.
I read that gene therapy and cell transplantation techniques are being developed as an experimental approach to neuroregeneration. How close are them to being used in a clinical context?
Which other therapies are being developed in Parkinson disease? What about the Parkinson vaccine, and monoclonal antibodies?