Active clinical trials for "Parkinson Disease"

This is a randomized, placebo-controlled, 3-period crossover, balanced, single-site, third party-blind study of preladenant (SCH 420814) in participants with Parkinson disease (PD) to be conducted in conformance with Good Clinical Practices. This trial will investigate the effects of single doses of preladenant and placebo on the dyskinesia and antiparkinsonian actions of a levodopa infusion. The study will examine 10 mg ("low dose") or 100 mg ("high dose") study drug, given as single, oral administrations in conjunction with intravenous (IV) levodopa infusion and oral carbidopa.

Apathy usually refers to a set of behavioural, emotional and cognitive features as a reduced interest and participation in main activities of daily life, a lack of initiative, a trend toward an early withdrawal from started activities, an indifference and a flattening of affect. We have validated a new specific scale (Lille Apathy Rating Scale, LARS) in order to detect and quantify apathy in Parkinson's disease (PD). Apathy was shown to be frequent in PD with a prevalence of 32%. It has suggested that the medial frontal and limbic cholinergic deficits may underlie apathy in neurodegenerative disorders like Alzheimer's disease (AD). Such a hypothesis is supported by recent evidence indicating the beneficial effects of cholinesterase inhibitors on neuropsychiatric symptoms, mainly apathy, in AD patients. As the efficacy of rivastigmine on cognition has also been shown in PD, we aimed to assess with a randomized, double-blind, placebo-controlled, parallel-group, multicenter trial, the efficacy and acceptability of a 6 months treatment with rivastigmine on apathy in 60 patients with PD without dementia. The primary end point will be the LARS score and the secondary end points will be the cognitive, behavioural and motor symptoms of PD. Two add-on studies will be proposed: first the measure of choline and glutamate peaks on Magnetic Resonance Spectrometry focused on the structures implicated in apathy in order to give insights in the physiopathological mechanisms of the treatment. Secondly, the recording of the REM sleep behavior disorders in relation with the cholinergic part of the pedunculopontine nucleus. Regarding that apathy could be one of the first steps toward PD dementia, treating very early could have substantial implications on the patients and their caregiver.

The aim of the study is to test the effects of low frequency deep rTMS using the novel H-coil on the motor, affective and cognitive deficits in patients with Parkinson's disease (PD) and to establish its safety in this population. The investigators anticipate to recruit 10 patients to an open pilot study. All patients will receive an active rTMS stimulation and will be given 12 treatment sessions, over a period of up to 4 weeks. Each of the 12 daily treatment sessions (lasting about 30 minutes each), will be consisted of 25 stimulation trains over the prefrontal cortex (20Hz trains, 2 seconds each with an inter-train interval of 20 seconds) and one train of 15 minutes at 1 Hz over the the motor cortex. The following outcome measures will be taken prior to the treatment (screening visit), and at day 1, 10, 30, 60, and 90: Unified Parkinson's Disease Rating Scale (UPDRS ) Clinical Global Impression of Severity (CGIS) Pegboard test. Tapping test Up & Go test Abnormal Involuntary Movement Scale (AIMS) Mood and affect Beck Depression Inventory (BDI) Cognition 1. Mini mental State examination (MMSE) 2. Digit forward and backward tests. 3. Word fluency. 4. Frontal Assessment Battery (FAB) Side effects will be closely monitored by the researchers and will be promptly reported to the IRB

This study will investigate the effect of TCH346 compared to placebo in delaying the need for symptomatic treatment with dopaminergic agents

This study is a multicenter, randomized, double blind, parallel group study of 3 months' treatment with SLV308 administered as a monotherapy in patients with advance stage PD. An open label safety extension to this study is planned as a separate protocol for patients who are willing and eligible to participate.

The purpose of this study is to establish the efficacy of 20 mg/day and 40 mg/day doses of istradefylline for reducing the mean total hours of awake time per day spent in the OFF state in patients with advanced Parkinson's disease (PD) treated with levodopa.

This study in PD patients is designed to assess the affect food has on the absorption, distribution, metabolism and excretion of ropinirole (by dosing some patients in the fasted state and other patients following a high-fat breakfast), and to assess the difference in absorption, distribution, metabolism and excretion of ropinirole if patients are given three 4mg ropinirole tablets versus one 12mg tablet.

Patients with sleep disordered breathing (SDB), also called sleep apnea, experience nighttime disrupted sleep and, because they stop breathing for short periods during the night, do not get sufficient oxygen to their brains. This can frequently result in daytime impairments including difficulties with memory. The state-of-the-art treatment for SDB is Continuous Positive Airway Pressure (CPAP). Many non-demented SDB patients who are successfully treated with CPAP show improvement in memory and other cognitive functions. Data have shown that patients with Parkinson's disease have a high rate of SDB. Patients with Parkinson's disease also often have problems with memory. This study will test the effects of treating SDB among patients with Parkinson's disease and SDB. Specifically, the study will test the effect of CPAP treatment on SDB and sleep; the effect of CPAP treatment on daytime sleepiness, cognition, overall quality of life and mood; the effect of CPAP treatment on the frequency of symptoms of REM behavior disorder and restless legs syndrome; the effect of continued CPAP use (beyond the six weeks of the study) on SDB, sleep, cognition, mood and quality of life; whether the study-partner feels that CPAP improves the patient's sleep, mood and overall functioning; whether study-partners feel that their own sleep, mood and overall functioning improve as the patient's sleep improves both during the 6-week protocol and at follow-up for those opting to continue using CPAP.

This study will evaluate the safety and efficacy of administration of AFQ056 in combination with L-dopa, in reducing the number of L-dopa related dyskinesias in Parkinson's disease patients.

This study will evaluate the effectiveness of atomoxetine in reducing symptoms of depression in people with Parkinson's disease.