The National Institute of Neurological Disorders and Stroke, part of the National Institutes of Health, is looking for individuals with Parkinson's disease to participate in NIH Exploratory Trials in Parkinson's Disease (NET-PD). NET-PD is a series of clinical research studies conducted at approximately 50 centers across the country and in Canada in an effort to find drugs to slow the progression of Parkinson's.

Current therapies are able to effectively treat the symptoms of PD. However, over time, these therapies may be less effective and the disease process continues. Therefore it is important to identify agents that are able to slow disease progression.