Active clinical trials for "Parkinson Disease"

The purpose of this study is to record electrical brain activity during DBS surgery and after DBS surgery using the Medtronic Activa PC+S deep brain stimulation (DBS) system, a modified DBS pulse generator. The goal of the study is to investigate if the electrical brain activity can help customize DBS therapy.

A cornerstone in PD research is the investigation of neurophysiological changes as potential biomarkers that could help in tracking disease progression and response to therapies. Electroencephalography (EEG) could provide a non-invasive and relatively cheap tool for identification of such biomarkers. In this study we will use high-density electroencephalograph (EEG) recording, in order to develop a platform of biomarkers that could be more sensitive and reliable to disease progression and response to therapeutic intervention than standard clinical measures.

Patients with Parkinson's disease (PD) suffer from motor fluctuations and levodopa induced dyskinesia. The prupose of this study is to evaluate the effect of an automatic system to assess the motor state of PD patients in real daily life. Movements and postures are assessed using 6 accelerometers attached to the the most affected wrist, trunk, both upper legs and both upper arms. Patients wear the system for two days and keep an own diary of their motor state

Levodopa is the main drug treatment for Parkinson's disease. Levodopa can cause unwanted and uncontrolled movements called dyskinesias (LID). The severity of these movements can range from subtle to extremely debilitating. These movements may or may not interfere with normal activities such as putting on a coat or brushing ones teeth. Current estimates of the occurrence rate of LID range from 12 % to 100% after one year of levodopa treatment. These estimates used reporting mechanisms such as self-report and doctor-reported. These reporting mechanisms are not reliable. We will use an objective measure of dyskinesia in the first 5 years of treatment for Parkinson's disease. The purpose of this protocol is to use an objective measure to estimate dyskinesia onset.

This is a prospective single-institution longitudinal study to access quality of life and serial imaging and biodynamic testing to assess spinal disorders associated with Parkinson's disease patients.

The aim of this study is to develop and optimize methods to isolate, propagate and differentiate adult human neural stem cells from patients with degenerative neurological disorders like Parkinson's disease.

Glaucoma is a worldwide leading cause of blindness. The key feature of this ocular neuropathy is characterized by an excavating optic nerve head. Loss of retinal ganglion cells is the final end point in blinding diseases of the optic nerve such as glaucoma. It is known that neuronal cell death in glaucoma occurs by an apoptotic mechanism. In earlier studies the investigators could demonstrate that the process of apoptosis is reflected in circulating leukocytes by different parameters, like differential mRNA expression and an increased fragmentation of the DNA. Such alterations point out a relationship between cellular stress and apoptotic events. Based on the results of mRNA-expression the investigators also expect alterations on the protein level. This study is, therefore, designed to characterize the proteome related to the proteins involved in cell death related pathways. Thus, the expression pattern of several proteins in leukocytes from patients with primary open angle glaucoma will be analyzed by techniques like Western-blot and tandem mass spectrometry. These samples will be compared with samples from healthy controls. In addition, they will also be compared with samples from patients with Parkinson's disease. Since glaucoma is a neurodegenerative disease, these patients will be included as positive controls in this study.

The general purpose of this observational study is to examine biomarkers associated with the pathology of neurodegenerative diseases to potentially develop novel therapeutic approaches.

The purpose of this program is to provide patients with PDP access to pimavanserin until the product receives marketing approval from the FDA and is commercially available.

To quantitative measurement of nocturnal hypokinesia of Parkinson's disease patients compares with their spouses by using multisite accelerometers for 1 night at their home. To determine whether the nocturnal movement of Parkinson's disease patients less than normal elderly people or not.