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Browse 890 clinical trials for parkinson's disease. Find studies that match your criteria and connect with research centers.
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NCT01572142
The overarching goal of this prospective cohort study is to test the hypotheses that greater severity of hyposmia is associated with increased risk of cognitive decline in PD and that worsening hyposmia parallels progressive cholinergic limbic denervation. To achieve the goals of this project, patients with PD without dementia or at-risk of dementia or with dementia will undergo longitudinal olfactory, cognitive and clinical testing for 2-4 years. AChE \[11C\]PMP or VAchT (vesicular acetylcholine transporter) \[F18\]-FEOBV PET will be performed both at study entry and at 2-years (± 6 months) follow-up. Brain MRI scans will also be performed at study entry and at 2-years (± 6 months) follow-up. Brain Beta-amyloid PET will be performed at study entry or at 2 years (± 6 months). Annual olfactory testing will be performed to better understand dynamic changes underlying the clinical and PET outcome measures.
NCT01264861
This is a study of safinamide, an investigational drug for Parkinson disease (PD). Safinamide is being developed as add-on therapy for the treatment of Parkinson disease. It is theorized that safinamide acts by increasing the available dopamine in those areas of the brain where dopamine is decreased as a result of Parkinson;s Disease. . Dopamine in the brain is involved in controlling body movements. Safinamide has been extensively studied in animals, and has been shown to increase the level of dopamine in these animals. Safinamide has also been tested in patients with Parkinson disease. The goal of this research trial is to see if safinamide is safe and well tolerated and to better understand how it affects the dopamine system in the brain in individuals with Parkinson disease. Data from this trial may provide essential information about the effectiveness and safety of these doses of safinamide in patients with early Parkinson disease, who are already receiving a stable dose of their normal Parkinson disease treatment.