View clinical trials related to Parkinson's Disease.
Filter by:Our recent study (Xie et al, Neurology 2015; 84: 415-420) found that bilateral STN DBS of 60Hz, compared to the traditional 130Hz, decreased the aspiration frequency and swallowing difficulty, freezing of gait (FOG), and other axial symptoms and parkinsonism in Parkinson patients with FOG refractory to 130Hz and medications. The benefit of 60Hz stimulation persisted during the 6-week study period, but with worsening tremor in one patient. However, it remains unknown whether the benefit of 60Hz would persist on prolonged stimulation period, and whether there is carry-over effect across different conditions. Hence, the investigators would like to test the hypothesis that the 60Hz stimulation, compared to 130Hz might have persistent benefit over an extended period in reducing the swallowing dysfunction, FOG, and other axial symptoms in these PD patients even after correcting the potential carry-over effect.
To determine if PT intervention will be improved while in the "on" motor state vs. the "end-of-dose-off" motor state during the PT Intervention Visit in subjects with PD.
The purpose of this study is to investigate brain signals related to freezing of gait (FoG), a symptom of Parkinson's Disease, that can lead to dangerous falls. The investigators hypothesize that uncovering these signals can lead to better deep brain stimulation interventions.
Outcomes study to test the hypothesis that patients first identified by community-based neurologists, implanted by a networked movement disorders center, and then managed by the same community-based neurologist will have clinical outcomes comparable to movement disorders centers.
While positron emission tomography/computed tomography (PET/CT) can assist in the diagnosis of Parkinson disease (PD), it can also potentially help monitor treatment options for PD. One such experimental therapeutic option for PD is fetal dopaminergic transplantation trials. A potential goal of such novel therapies is to replace deficient dopaminergic neurons in PD. Researchers at the University of Saskatchewan have been at the frontier of these exciting treatment options. [18F]FDOPA PET/CT imaging has been successfully used by some authors to monitor engraftment and assess efficacy of fetal dopaminergic transplant . This study also aims to utilize [18F]FDOPA PET/CT imaging to potentially aid in detecting alterations in the dopaminergic pathway from these innovative surgical treatment options. There are two main objectives of this study: 1) Evaluate the effectiveness of fetal dopaminergic grafts in patients with PD using FDOPA PET imaging pre and post-surgical implantation and a secondary longer term goal 2) Correlate the [18F]FDOPA PET/CT findings in early PD with post-mortem pathological analyses of PD
The primary aim of the proposed project is to characterize dual tasking (DT) deficits to improve motor, cognitive, and quality of life outcomes in individuals with Parkinson's disease (PD). Phase 1 of the intervention will involve an in-depth gait analysis on 15 individuals with PD. This gait analysis will utilize the Computer Assisted Rehabilitation Environment (CAREN) system, a virtual reality system with a fully integrated 3-D motion capture system. The purpose of Phase 1 is to generalize characteristics of gait and postural control during specific DT conditions. Phase 2 (N=20) involves the clinical translation of these findings. This phase will involve creating a clinical intervention based on the objective information gathered the CAREN system. The intervention will take place 3x/week for a total of 8 weeks. Interventional groups will include: 1) DT clinical group (N=10) and 2) Single task group (N=10). Outcome measures will be used at the beginning and end of the intervention to assess the feasibility and efficacy of the intervention.
The purpose of this study is to improve outcomes for persons living with Parkinson's Disease (PD) and their family caregivers. The investigators hypothesize that outpatient interdisciplinary palliative care will improve patient-centered outcomes for PD patients at high-risk for poor outcomes.
The main objectives for this study are: 1. To investigate novel, non-invasive ocular measurements including optical coherence tomography and eye tracking in a cross-sectional study of participants with various neurodegenerative dementias against standard cognitive assessments and brain imaging measures; and 2. To assess the potential utility of ocular assessments for early detection in the pre-dementia, i.e. the so-called Mild Cognitive Impairment (MCI) stage, across the common neurodegenerative dementia syndromes and, Vascular Cognitive Impairment (VCI) due to small vessel disease (SVD). 3. To determine the prevalence and relevance of amyloid uptake on PET scanning across the dementias most commonly associated with amyloidosis. Specifically we aim to examine correlations with amyloid uptake status in patients symptomatic from the most common proteinopathies (ie amyloid, tau, synuclein) combined in varying degrees with the most common vasculopathies (ie small vessel disease) using multimodal structural and functional imaging, cognitive behavioral, and gait and balance measures, taking into account genetic risk markers (particularly apolipoprotein E genotypes) and fluid biomarkers ( eg cytokines, oxidative stress, lipidomics).
Patients with tremor may have varying degrees of tremor at different times. The amplitude and frequency of tremor may change. The investigators observational study is intended to document this tremor.
In a computerized experiment, visual stimuli will be presented to the parkinson's disease patients and to the controls. They will respond to each image by acting on the keyboard in a specific manner. Each participant will repeat that task 384 times per session. A break will be inserted every 12 tests so that participants can rest. The experiment consists of three sessions. Each image will be presented three times. For the first two presentations it is assumed that a link will be created between the image and the task, and the image and action. In the third presentation, the same task and the same action will be maintained or will be swapped. In this way, It can be checked whether associations thus generated will affect the performance of the participants when tasks and actions will be incongruent.