NIH Exploratory Trials in Parkinson’s Disease (NET-PD) is a series of clinical research studies funded by the National Institute of Neurological Disorders and Stroke, part of the National Institutes of Health, that were conducted to find drugs to slow the progression of PD.

Current PD therapies are able to effectively treat symptoms,
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.