Parkinson's Disease Paid Clinical Trials in Tennessee

The objective of this randomized, surgically controlled, double-blinded, Phase 2 study is to evaluate the safety and efficacy of AAV2-GDNF delivered to the putamen in subjects with moderate Parkinson's Disease. Read Less

This trial is a randomized, double-blind, placebo-controlled Phase 1b study evaluating the safety/tolerability, PK, and pharmacodynamics of VENT 02, administered orally at 1 dose level twice daily (BID) over 28 days in patients with mild to moderate Parkinson's disease. The study includes a screening period, a 28-day double-blind treatment period, and a 7-day follow-up period after last dose. Approximately 30 patients will be randomized into 1 of the 2 treatment arms. Read Less

The purpose of this registry is to compile characteristics of world-wide outcomes for the use of Boston Scientific's commercially available Vercise DBS System in the treatment of Parkinson's disease. The utilization of Image Guided Programming (IGP), and other commercially available programming features, used as planning tools for the programming of patients with Boston Scientific's Vercise DBS System are also evaluated. Additionally, the utilization of the DBS Illumina 3D feature that may be used for the programming of patients with Boston Scientific's Vercise DBS Systems is also evaluated. Read Less

The goal of this study is to learn more about the brain activity underlying Parkinson's disease cognitive impairment. The investigators will utilize neural recordings from corticostriatal structures performed during deep brain stimulation surgery to measure neural activity underlying nonmotor symptoms of Parkinson's disease. Read Less

The study aims to investigate cognitive impairment associated with Deep Brain Stimulation (DBS) in Parkinson's Disease patients, with a focus on identifying neurophysiology biomarkers of DBS associated cognitive changes. Using neurophysiology data recorded during DBS surgeries and post-implantation, the research intends to identify biomarkers in order to optimize electrode placement, enhance programming, and ultimately minimize DBS-related cognitive side effects. Read Less

This is a randomized, double-blind, placebo-controlled, multicenter study in participants with Parkinson's disease (PD) with motor fluctuations. Participants will be randomized to receive once-daily oral doses of either 75 milligrams (mg) CVN424, 150 mg CVN424, or a matching placebo for 12 weeks. Participants who successfully complete this study and retain eligibility/suitability will be invited to participate in a future open-label extension (OLE) study. Read Less

Alpha-synucleinopathies refer to age-related neurodegenerative and dementing disorders, characterized by the accumulation of alpha-synuclein in neurons and/or glia. The anatomical location of alpha-synuclein inclusions (Lewy Bodies) and the pattern of progressive neuronal death (e.g. caudal to rostral brainstem) give rise to distinct neurological phenotypes, including Parkinson's disease (PD), Multiple System Atrophy (MSA), Dementia with Lewy Bodies (DLB). Common to these disorders are the involvement of the central and peripheral autonomic nervous system, where Pure Autonomic Failure (PAF) is thought (a) to be restricted to the peripheral autonomic system, and (b) a clinical risk factor for the development of a central synucleinopathy, and (c) an ideal model to assess biomarkers that predict phenoconversion to PD, MSA, or DLB. Such biomarkers would aid in clinical trial inclusion criteria to ensure assessments of disease- modifying strategies to, delay, or halt, the neurodegenerative process. One of these biomarkers may be related to the neurotransmitter dopamine (DA) and related changes in the substantia nigra (SN) and brainstem. \[18F\]F-DOPA is a radiolabeled substrate for aromatic amino acid decarboxylase (AAADC), an enzyme involved in the production of dopamine. Use of this radiolabeled substrate in positron emission tomography (PET) may provide insight to changes in monoamine production and how they relate to specific phenoconversions in PAF patients. Overall, this study aims to identify changes in dopamine production in key regions including the SN, locus coeruleus, and brainstem to distinguish between patients with PD, MSA, and DLB, which may provide vital information to predict conversion from peripheral to central nervous system disease. Read Less

The purpose of this study is to learn more about the effects of midodrine and droxidopa, two medications used for the treatment of orthostatic hypotension (low blood pressure on standing), on the veins of the abdomen of patients with autonomic failure. The study will be conducted at Vanderbilt University Medical Center, and consists of 2 parts: a screening and 2 testing days. The total length of the study will be about 5 days. About 34 participants will be screened for the study. Read Less

This is a multicenter, randomized, double-blind, placebo-controlled, parallel-group, fixed-dose study in patients with a diagnosis of Parkinson's Disease consistent with the UK Parkinson's Disease Society (UKPDS) Brain Bank diagnostic criteria, who are experiencing wearing off symptoms and levodopa-induced dyskinesia. Read Less

This study aims to learn about the effects of continuous positive airway pressure (CPAP) on people with autonomic failure and high blood pressure when lying down (supine hypertension) to determine if it can be used to treat their high blood pressure during the night. CPAP (a widely used treatment for sleep apnea) involves using a machine that blows air into a tube connected to a mask covering the nose, or nose and mouth, to apply a low air pressure in the airways. The study includes 3-5 days spent in the Vanderbilt Clinical Research Center (CRC): at least one day of screening tests, followed by up to 3 study days. Subjects may be able to participate in daytime and/or overnight studies. The Daytime study consists of 2 study days: one with active CPAP and one with sham CPAP applied for up to 2 hours. The Overnight study consists of 3 study nights: one with active CPAP, one with sham CPAP, both applied for up to 9 hours and one night sleeping with the bed tilted head-up. Read Less

The purpose of this study is to learn more about the effects of abdominal compression and the medication midodrine, two interventions used for the treatment of orthostatic hypotension (low blood pressure on standing), on hemodynamic markers of cardiovascular risk. The study will be conducted at the Vanderbilt University Medical Center and consists of a screening and 2 testing days, one with abdominal compression and one with midodrine. The total length of the study will be about 5 days. Read Less

The NIH grant has funded the development of a physiological brain atlas registry that will allow us to significantly improve the data collectioin and use of physiological data into a normalized brain volume. This initially was used to improve DBS implants for Parkinson's Disease, Dystonia, Essential Tremor, and OCD, but now includes data acquired during all stereotactic brain procedures. Read Less