Active clinical trials for "Parkinson Disease"

The overall objective of this study is to compare the performance of available oligomeric and phosphorylated a-synuclein assay in cerebrospinal fluid and blood.

The purpose of this dual phase cross-sectional, controlled and prospective, open label, exploratory study is to determine the general characteristics of visuospatial exploration and its neural substrate in subjects with Parkinson's Disease (PD) and to explore the impact of professional art therapy intervention in a cohort of subjects with Parkinson's Disease on visuospatial exploration, visuomotor integration, neuropsychological and emotional sphere, quality of daily living and motor symptoms.

The study will investigate Essential Tremor and Parkinson's Disease patients who underwent Magnetic Resonance guided Focused Ultrasound Surgery (MRgFUS). We will evaluate the effect of lesion characteristics on tremor and on quality of life after the procedure as compared with the baseline prior to the procedure.

Parkinson's disease (PD) is a common disease. Dementia will affect 80% of these patients during their evolution. In addition, treatments of motor signs have a potential impact on these disorders and conversely. The purpose of this study is to show focal abnormalities in brain metabolism in the precuneus and posterior cingulate region are predictive of the onset of dementia within 2 years.

Patient reported outcomes (PRO) have become an important endpoint assessed in clinical trials. It is important to understand the relationship between medication and patients' symptomatology, quality of life and well-being. We predict levodopa/carbidopa intestinal gel (LCIG; Duodopa) will significantly improve quality of life and emotional well-being compared to baseline in patients with advance Parkinson disease (APD) not well controlled with conventional treatment.

Continuous deep brain stimulation (cDBS) is an established therapy for the major motor signs in Parkinson's disease. Currently, cDBS is limited to "open-loop" stimulation, without real-time adjustment to the patient's state of activity, fluctuations and types of motor symptoms, medication dosages, or neural markers of the disease. The purpose of this study is to determine if an adaptive DBS system, responding to patient specific, clinically relevant neural or kinematic feedback, is efficacious on the motor Unified Parkinson's Disease Rating Scale (UPDRS III) and specific phenotypic measures in Parkinson's Disease compared to OFF therapy (i.e., OFF DBS and withdrawn from medication) and more efficient than cDBS. Not every recruited participant completed every part of the protocol.

Assessment of daily maintenance dose of Sifrol®, L-dopa sparing effect, effect on tremor, depression, anhedonia and tolerability

The primary objective of this study was to describe neurologists' population of patients treated with pramipexole and suffering from Parkinson's disease (so called 'primary care' population). The secondary objectives were: Evaluate the mean dose of pramipexole prescribed under actual conditions of use depending on the severity of the disease. Evaluate the reasons for choosing pramipexole as treatment. Identify the patient profiles determining the choice of dose of pramipexole prescribed

Patients with Parkinson's disease show a gait disturbance which is considered as one of the most disabling aspect of the disease that strongly impacts on patients' autonomy and quality of life. The mechanism underlying gait impairment is multi-factorial, reflects the global motor impairment of patients with PD and is mainly related to a neurotransmitter deficiency inducing bradykinesia, rigidity, abnormal trunk control and postural instability. For this reason, and considering the impact of social and economic costs, one of the main foci of intervention in patients with PD should be treating gait abnormalities. This need is further reinforced by the knowledge that gait outcomes are correlated with longevity, cognitive decline and adverse events. Besides the shorten-step gait clinical description of the gait disorder in PD, in the last years, studies using modern 3D motion analysis systems have further detailed the gait pattern in PD disclosing abnormalities in cadence, stance duration, swing duration, double support duration, leg length, step length, velocity, hip, knee and ankle ROMs. Such abnormal gait parameters seem to correlate with the clinical outcomes of UPDRS score, H-Y stage and milliequivalents of levodopa taken. Importantly, gait parameters can either normalize or improve after several rehabilitative treatment strategies including physiotherapy, assistive equipment, sensory cueing, treadmill training, physical activity, home base exercises. However, none of the previous studies specifically investigated which biomechanical factor can be modified after rehabilitation and which clinical characteristic can predict the rehabilitation-induced gait improvement. This would be extremely important to typifying, grouping and selecting patients, optimizing the rehabilitative strategies and cost management. The aims of the present study were to evaluate in a sample of patients with PD: i) which gait parameters can be modified after a short-term rehabilitation program; ii) which, if any, clinical variable can predict the improvement of the gait function after rehabilitation. At this aim we quantitatively evaluated the gait performance of PD patients by means of a 3-D motion analysis system.

Parkinson's disease (PD) is a progressive neurological disorder that is increasingly common with age, with the incidence rising from approximately 4 people per 10,000 in their forties to 2 in 100 over the age of eighty. Our understanding of the causes of PD has rapidly developed in the past two decades, but this has not yet translated into any clinically established neuroprotective treatment that slows disease progression. There is a growing consensus that the failure of previous efforts is mainly due to the causative diversity of PD i.e. that PD may have many different causes. For example, it is known that variants in mitochondrial (cellular power house) genes can cause specific forms of PD and this may be relevant to other forms of PD. The aim of this study is to attempt to group PD patients based on markers of biochemical dysfunction (e.g. into groups of patients that do and those who do not have evidence of mitochondrial dysfunction) to aid in the development of new candidate neuro-protective compounds. The investigators hope by grouping people with Parkinson's into those with and without impaired mitochondrial function the investigators will be better able to develop more targeted treatments aimed at protecting further loss of brain cells that occurs in Parkinson's disease. To achieve this the investigators will study people, in two study sites in London, with both genetic forms of PD and those with idiopathic PD (i.e. those where there is not a known genetic variant causing PD), as well as a healthy control group. All groups will undergo standardised clinical assessment to collect information on several aspects of their condition (e.g. disease severity, memory problems and sleep problems). Participants will be asked to provide blood, urine and optionally cerebrospinal fluid & skin samples from which various biochemical assays and genetic analysis will be performed in attempt to group participants based on the results of these tests. The study is funded for 3 years with participants being asked to attend for up to 3 study visits each over this time period.