View clinical trials related to Parkinson Disease.
Filter by:This project adds to non-invasive BCIs for communication for adults with severe speech and physical impairments due to neurodegenerative diseases. Researchers will optimize & adapt BCI signal acquisition, signal processing, natural language processing, & clinical implementation. BCI-FIT relies on active inference and transfer learning to customize a completely adaptive intent estimation classifier to each user's multi-modality signals simultaneously. 3 specific aims are: 1. develop & evaluate methods for on-line & robust adaptation of multi-modal signal models to infer user intent; 2. develop & evaluate methods for efficient user intent inference through active querying, and 3. integrate partner & environment-supported language interaction & letter/word supplementation as input modality. The same 4 dependent variables are measured in each SA: typing speed, typing accuracy, information transfer rate (ITR), & user experience (UX) feedback. Four alternating-treatments single case experimental research designs will test hypotheses about optimizing user performance and technology performance for each aim.Tasks include copy-spelling with BCI-FIT to explore the effects of multi-modal access method configurations (SA1.3a), adaptive signal modeling (SA1.3b), & active querying (SA2.2), and story retell to examine the effects of language model enhancements. Five people with SSPI will be recruited for each study. Control participants will be recruited for experiments in SA2.2 and SA3.4. Study hypotheses are: (SA1.3a) A customized BCI-FIT configuration based on multi-modal input will improve typing accuracy on a copy-spelling task compared to the standard P300 matrix speller. (SA1.3b) Adaptive signal modeling will allow people with SSPI to typing accurately during a copy-spelling task with BCI-FIT without training a new model before each use. (SA2.2) Either of two methods of adaptive querying will improve BCI-FIT typing accuracy for users with mediocre AUC scores. (SA3.4) Language model enhancements, including a combination of partner and environmental input and word completion during typing, will improve typing performance with BCI-FIT, as measured by ITR during a story-retell task. Optimized recommendations for a multi-modal BCI for each end user will be established, based on an innovative combination of clinical expertise, user feedback, customized multi-modal sensor fusion, and reinforcement learning.
Hypokinetic gait disorder and Freezing of Gait (FOG) are frequent symptoms in the advanced stage of Parkinson's disease (PD). These impair quality of life and significantly increase the risk of falls. External movement pacemakers have been developed to improve gait and avert FOG by cueing strategies. The investigators developed a smart, small and lightweight, easy-to-handle wearable tactile cueing device (TCD), consisting of a control unit, two pulse generators and a battery-driven power supply. The device is programmed via a Graphical User Interface (GUI).
This is a pivotal study to determine whether light therapy can improve non-motor and motor function in Parkinson's disease, on top of current best medical treatment.
Sleepiness is frequent in parkinsonian patients, increasing with the duration of disease. By patients with motor fluctuations, continuous dopaminergic delivery devices or deep brain stimulation are justified to improve the motor prognosis. Antiparkinsonian treatments, especially dopaminergic agonists, may worsen the sleepiness and thus affect the quality of life. The investigators aimed to monitor sleepiness in parkinsonian patients before and during treatment with continous dopaminergic delivery device or deep brain stimulation.
Given the emerging evidence on LRRK2-related biomarkers, this project will focus on identifying leucocyte and urine biomarkers that are altered by the LRRK2 G2385R variant, and investigating the effects of LRRK2 kinase inhibitor (MLi-2) on these biomarkers, using immunoblotting and mass spectrometry.
Parkinson disease (PD) is considered a multisystemic neurodegenerative disorder, together with the classic motor disability, and a number of non-motor symptoms (NMS).NMS have a significant negative relation with patients' quality of life. In general, both medicinal and nonmedicinal therapies are often advised for PD patients with NMS, but robust evidences for underpinning the clinical effects are limited. Recently, the search for small preventative neurotrophic compounds that are responsible for the maintenance, survival of neurons has attracted much attention. Erinacine A, which is extracted from Hericium erinaceus is the one showed prominent beneficial effects in the central nervous system. It can increase NGF and catecholamine content in the locus coeruleus and hippocampus of rats. This markedly increases neuronal survival in different brain areas and substantially improve behavioral outcomes in various animal models. In a MPTP-induced Parkinsonism model, treatment with Hericium erinaceus mycelium reduced the loss of dopaminergic cell, eliminated neuronal apoptosis and reversed MPTP-associated motor deficits. Thus, this project intends to hold a randomized, controlled trial to assess the effect of Hericium erinaceus mycelium, which is enriched of Erinacine A, in NMS of PD. This project will enroll 80 patients with PD. Subjects will be randomly allocated into study or placebo group. Subjects will take Hericium erinaceus mycelium for 2 years (one capsule per meal per day) and their treatments for PD will not be altered.
There is increasing evidence that the usage and delivery of energy to the brain, known as brain energetics, is altered in people with Parkinson's disease (PD). This project will explore whether exercise has a positive impact on brain energetics using functional Magnetic Resonance Imaging (fMRI) and Positron Emission Tomography (PET) brain scanning in PD subjects. PD subjects will be scanned before and after a supervised exercise program to investigate the effect of exercise on brain energetics. In a separate study, the investigators will also scan healthy volunteers to compare brain energetics in the healthy brain with the brain energetics data in PD subjects acquired in this study.
The aim of this study is to analyze the impact of video dance class and unsupervised physical activity on clinical-functional parameters, self-isolation and non-motors symptoms in people with Parkinson's disease during the Covid-19 pandemic.
Our hypothesis is that cycling DBS stimulation would be superior or non-inferior to regular DBS stimulation in Parkinson's disease patients with gait impairment. The objective of this study is compare gait disorders in patients with Parkinson's disease and DBS in 4 different scenarios: 1) regular continuous high frequency (>130Hz) stimulation, 2) cycling high frequency (>130Hz) stimulation (40sec on, 2sec off), 3) low-frequency (80Hz) continuous stimulation and 4) cycling low frequency (80Hz) stimulation (40sec on, 2sec off)
Sound and Vision: A collaboration between service-users, artists and the public to explore the lived experience of hallucinations