This study checks how safe and effective a new drug, NCR201, is for people with Parkinson's disease (PD). PD is a brain disorder mostly affecting older adults, causing symptoms like shaky hands, stiff muscles, and trouble moving. It's a serious problem affecting millions, and this study might help find better treatments.

Parkinson's Disease: A condition affecting the brain, leading to movement and muscle problems.

Eligibility Criteria: Participants must be between 40 and 75 years old, have had PD for at least 5 years, and be on a stable dopamine treatment. They should not have had brain surgery or stem cell treatments before.

• The study involves several visits and tests, including scans like PET/CT/MRI, to check progress.
• The duration and number of visits are not specified, so it's important to ask about this if interested.
• Potential risks and benefits should be discussed with the study team before deciding to participate.