Pre-Gene Therapy Study in Parkinson's Disease and Multiple System Atrophy

Open to people ages 35-75

• Diagnosis of Idiopathic PD
• Diagnosis of MSA-P
• One to six years from clinical diagnosis of PD
• Less than 4 years from clinical diagnosis of MSA with expected survival >3 years
• Stable medication regimen
• Ability to walk with or without an assistive device

• Movement disorder due to known cerebrovascular disease, brain tumor, trauma, exposure to parkinsonian-linked toxicants or other neurological diseases
• Presence of dementia, psychosis, substance abuse or poorly controlled depression
• Prior brain surgery (i.e. deep brain stimulation) or other brain imaging abnormalities
• History of cancer or poorly controlled medical conditions

• Receiving an investigational drug

  NOTE: Other protocol defined Inclusion/Exclusion criteria may apply.