View clinical trials related to Parkinson Disease.
Filter by:This is a study of safinamide, an investigational drug for Parkinson disease (PD). Safinamide is being developed as add-on therapy for the treatment of Parkinson disease. It is theorized that safinamide acts by increasing the available dopamine in those areas of the brain where dopamine is decreased as a result of Parkinson;s Disease. . Dopamine in the brain is involved in controlling body movements. Safinamide has been extensively studied in animals, and has been shown to increase the level of dopamine in these animals. Safinamide has also been tested in patients with Parkinson disease. The goal of this research trial is to see if safinamide is safe and well tolerated and to better understand how it affects the dopamine system in the brain in individuals with Parkinson disease. Data from this trial may provide essential information about the effectiveness and safety of these doses of safinamide in patients with early Parkinson disease, who are already receiving a stable dose of their normal Parkinson disease treatment.
This project aims to determine if methylphenidate can improve deficits in attention and symptoms of orthostatic hypotension, two common non-motor symptoms, in patients with Parkinson's Disease. This project also seeks to evaluate the effect of methylphenidate on postural control in these patients, a debilitating motor symptom that places patients at an increased risk of falling. This study will build on existing data to support a new indication for the use of methylphenidate in Parkinson's Disease. Using standard and objective evaluations, this study will quantify the effect of methylphenidate at two doses on attention levels, orthostatic hypotension, and measures of postural control. Phase I of the study will compare methylphenidate 10mg three times daily to placebo and Phase II of the study, for those tolerating the lower dose in Phase I, will compare methylphenidate 20mg three times daily to placebo. By incorporating two different doses, the study also seeks to determine if any improvements are dose-related. Secondary endpoints will include safety assessments (adverse event monitoring and vital signs) performed every 30 minutes following supervised drug administration. Visual analog scales will be presented to each participant before treatment and following the final dose of each treatment to assess changes in fatigue. A secondary task will be added to postural tests to assess the influence of cognitive processes. It is hypothesized that methylphenidate will demonstrate a significant beneficial effect on all outcomes. It is projected that objective improvements will be observed following treatment with methylphenidate at both doses (10 and 20mg three time daily) when compared to placebo. It is further hypothesized that the effects will be dose-related and therefore more profound with higher doses.
The primary purpose of this extension study is to assess the long-term safety and tolerability of preladenant in participants from parent studies NCT01155466 [P04938] and NCT01227265 [P07037] with moderate to severe Parkinson's Disease (PD). The study will also characterize the long-term efficacy of preladenant in participants with PD. Participants will continue to receive their stable regimen of levodopa (L-dopa) plus any adjunct medications during the study as prescribed by their physician. Several classes of adjunct medications may be used, including Amantadine, anticholinergics, dopa decarboxylase inhibitors, and dopamine agonists.
Sleep-wake disturbances (SWD) are frequent in Parkinson's disease (PD) and affect the quality of life of affected patients. Rasagiline is a potent, highly selective, irreversible, second-generation, monoamine oxidase type-B (MAO-B) inhibitor with a 24h dopaminergic effect. It is well known that dopaminergic treatment closely interacts with SWD. This study aims to assess the effect of Rasagiline on SWD in PD patients. In this randomized, double-blind, placebo controlled study in clinical phase IV, 60 subjects will be treated with rasagiline 1mg po once daily or placebo over 8 weeks. The study is planned to be conducted in 6-9 Swiss centers. Questionaires will be used to assess SWDs: sleep disturbances (Parkinson's Disease Sleep Scale, PDSS), daytime sleepiness (Epworth Sleepiness Scale, ESS), fatigue (Fatigue Severity Scale, FSS), apathy (Apathy Evaluation Scale Self, AES-S), disability (Sheehan scale) and QoL in PD patients. - Trial with medicinal product
This is a one year, 2-part study to determine the efficacy and safety of preladenant, an adenosine type 2a (A2a) receptor antagonist. The purpose of Part 1 (first 26 weeks) is to determine if preladenant is effective in the treatment of early Parkinson's Disease. The purpose of Part 2 (second 26 weeks) is to determine if preladenant is safe and well tolerated. The primary efficacy hypothesis is that at least the 10 mg twice daily dose of preladenant is superior to placebo as measured by the change from Baseline to Week 26 in the sum of Unified Parkinson's Disease Rating Scale (UPDRS) Parts 2 and 3 scores (UPDRS2+3).
Background: - New studies in human genetics have revealed information about genetic connections to memory and motor behavior. Researchers are interested in investigating the role of genetics in motor learning, in conjunction with related studies taking place in the Human Motor Control Section of the National Institute of Neurological Diseases and Stroke (NINDS). Participants in motor learning studies conducted at NINDS will be asked to provide blood samples for further evaluation. Objectives: - To create a repository of blood samples from patients and healthy subjects who are participating in NINDS motor learning studies. Eligibility: - Individuals between 18 and 100 years of age who are or will be participating in motor learning research studies at the National Institutes of Health. Design: - Blood draws for genetic testing will usually be done on the same day as the motor learning study. Participants will provide one blood sample for research. - No treatment will be provided under this study....
The purpose of this study is to provide proof-of-concept that the test product can perform as intended in an intra-operative setting and the responses to the test product are perceivable in a person. The study will also compare results of the test product to the commercially-available product. Hypothesis: the test product will elicit successful test results in over 90% of test product.
Title: Evaluation of the tolerance and acceptability of Rasagiline in the treatment of early-stage Parkinson's disease. Type of study: Phase IV Study objectives: Principal objective: To evaluate the tolerance and acceptability of Rasagiline versus Pramipexole (dopamine agonist). Secondary objectives: To evaluate the clinical benefits of Rasagiline administered as a monotherapy in patients presenting with early-stage Parkinson's disease. Study design: Multicentre comparative randomised parallel-group double-blind study, with a total duration of fifteen weeks (three weeks of dose titration and twelve weeks of follow-up), comprising four evaluations (D0, W3, W9, W15). Number of patients: 240 patients (i.e. 120 in each group) presenting with early stage idiopathic Parkinson's disease. Number of centres: 70 neurologists distributed throughout three French regions Treatment studied: Rasagiline Presentation: 1 mg tablets Dosage : 1 mg/day in a single dose, in the morning at breakfast-time. Comparator: Pramipexole Presentation: 0.125 mg, 0.25 mg and 1 mg pramipexole dihydrochloride monohydrate tablets (corresponding respectively to 0.088 mg, 0.18 mg and 0.7 mg of pramipexole) Dose-titration: As specified in the SPC for pramipexole, the product will be administered in three daily doses, preferably with meals, and the treatment will begin with a dose-titration phase of three weeks' duration, during which time the dosage will be gradually increased. On completion of the dose-titration phase, the minimum therapeutic dose of 1.5 mg per day must be achieved by all the patients. The patients who cannot achieve this dosage will be withdrawn from the study. The reason for stopping dose-titration (and leaving the study) will be detailed in the CRF. Dosage: The effective dosage of pramipexole should be adapted to the individual, depending on clinical response and tolerance, in successive stages of 0.75 mg at one-week intervals, without exceeding the maximum dose of 3 mg per day. Treatment prohibited during the study : Pethidine, fluoxetine, fluvoxamine, dextromethorphan, or any other MAOI, sympathomimetics (including nasal and oral decongestants containing ephedrine or pseudoephedrine), anti-H2s (cimetidine, ranitidine). Principal evaluation criterion : The principal criterion of evaluation is the percentage of patients who have presented with at least one " significant " adverse event during follow-up. A significant adverse event is defined as : - a severe adverse event (SAE) - an adverse event which in the opinion of the investigator requires suspension of the treatment or reduction in dosage - an adverse event considered as severe or moderate by the patient (AEs of which the intensity has not been evaluated will be considered as moderate to severe) Secondary evaluation criteria: - analysis of adverse events in the total population - analysis of adverse events by degree of severity - analysis of adverse events in subject over 65 - analysis of adverse events by symptom - percentage of patients presenting with sleep problems (daytime drowsiness, narcolepsy, insomnia, fragmented sleep…) - evaluation of Epworth Sleepiness Scale - evaluation of quality of life (PDQ-8) - evaluation of utilities by EuroQol (EQ-5D) - overall clinical impression evaluated by the doctor (CGI-I) and by the patient (PGI-I) - Global-Benefit-Risk (GBR) - Evaluation of resources Analysis of the principal criterion: Analysis of the principal criterion will be carried out with those patients from the intention-to-treat population for whom tolerance data is available in at least one visit after D0. Comparative analysis The percentages of patients in the two treated groups who present with at least one significant adverse event will be compared using a Khi-2 test. Logistic regression A logistic regression analysis will be performed in order to explain the presence/absence of a significant event. The nature of the treatment and the centre will act as explanatory variables, and the initial scores as covariates. Analyses will also be performed on quantitative variables (ANCOVA) Evaluation of the Global Benefit-Risk (GBR) according to the model suggested by Chuang-Stein et al. Number of subject required: Calculation of the size is based on the hypothesis that the percentage of patients presenting with at least one significant adverse event during follow-up (principal evaluation criterion) will differ by 15% from one group to the other. With an alpha risk set at 5% and a beta ris kat 20%, the number of subjects required, calculated using the Casagrande et Pike formula, is 110 subjects per group. The NSN was slightly overestimated in order to maintain the desired strength while taking into account the possibility of lost to follow-up, and was fixed at 240 patients.
Parkinson's disease is a major neurodegenerative disorder in which there is a progressive loss of nigrostriatal dopaminergic neurons. The understanding that PD is a syndrome of dopamine (DA) deficiency led to the introduction in the clinical practice of L-dopa, a precursor of DA that crosses the blood brain barrier, and also to the use of selective inhibitors of MAO B, the major DA metabolising enzyme in man. This is a double-blind, placebo-controlled, extension trial, parallel-group, randomised, multi-centre, multi national, Phase III trial, comparing two doses of safinamide (50 and 100 mg p.o. q.a.m.) versus placebo as add-on therapy to a stable dose of a single dopamine agonist in subjects with early idiopathic Parkinson's Disease. The principal objective is to evaluate the time to first intervention, as some previous data suggested that safinamide may delay the need for further dopaminergic supplementation.
The underlying goal of this study is to assess [18F] PBR06 PET imaging as a tool to detect microglial activation in the brain of Alzheimer Disease (AD), Parkinson Disease (PD) and Multiple Sclerosis (MS) research participants.