SIU Medicine is recruiting patients with early-stage Parkinson’s disease to study a new drug that could become a potential treatment for the debilitating condition. Parkinson's disease (PD) is a nervous system disorder that affects movement, causing slowness, stiffness, tremors and walking and balance problems. Over time, patients diagnosed with PD experience a worsening of their symptoms. In the early stages of Parkinson’s disease, symptoms may be mild and the diagnosis can be easily missed. The symptoms include: Slowed movement, also known as bradykinesia (difficulties getting out of a chair