Active clinical trials for "Parkinson Disease"

Parkinsonian syndrome is clinically characterized by the presence of resting tremor, rigidity, bradykinesia and postural instability. Parkinsonian disorders include Parkinson's disease (PD), progressive supranuclear palsy (PSP), corticobasal dementia (CBD), multiple system atrophy (MSA) and vascular parkinsonism (VP). Each of these diseases has a singular physiopathological origin, course and prognosis. Numerous imaging studies consequently aimed at finding markers to early make the distinction between the different types of parkinsonism, in order to identify patients who could benefit from dopaminergic agonist therapy. Excessive iron deposition in the subcortical and brainstem nuclei has been described in numerous neurodegenerative disorders including Parkinson's disease. Increased iron levels are more frequent in area that are rich in dopaminergic neurons and have been implicated in the development of movement disorders, the distribution of areas with increased iron deposition however varying according to parkinsonism types. Iron deposition quantification could thus potentially help in differentiating parkinsonism types and could improve therapy guidance. Quantitative susceptibility mapping (QSM) locally estimates the magnetic susceptibility of brain tissues based on gradient-echo signal phase. The local susceptibility being sensitive to the presence of paramagnetic susbtances, QSM allows the non-invasive evaluation of iron distribution and quantification in the brain with high image quality (Liu et al., 2013). However, since iron deposition followed an exponential curve during normal aging in most of the basal ganglia the potential of QSM to distinguish between healthy and parkinsonian subjects in elderly remains unclear. The aim of this study was thus to determine susceptibility values in the basal ganglia of elderly patients with parkinsonian syndromes, to compare these values to healthy aged-matched controls and between parkinsonian syndrome types. Secondly, investigators aimed to evaluate microstructural changes in the basal ganglia using diffusion tensor imaging (DTI) in the same population and to determine whether susceptibility and DTI parameter changes are correlated. Finally investigators sought to assess the relation between susceptibility/DTI parameter values in the basal ganglia and behavioral measures of motor and cognitive abilities.

The primary objective of the study is to evaluate the safety and tolerability of a range of single BIIB054 doses, administered as a single intravenous (IV) infusion, in healthy participants and participants with early Parkinson's disease (PD). Secondary objectives of the study are to assess the serum pharmacokinetics (PK) profile of BIIB054 after single-dose administration and to evaluate the immunogenicity of BIIB054 after single-dose administration.

Open-label study with 30-day run-in phase and adaptive design component to include more participants if deemed appropriate by investigators.

There is a critical need for treatments that address depression and barriers to mental health care in Parkinson's disease (PD). This randomized-controlled trial will evaluate a 10-session telephone-guided cognitive behavioral self-help program (TH-CBT) for depression in PD (dPD). 72 people with dPD (and their caregivers) will receive either TH-CBT plus enhanced usual care (INTERVENTION GROUP) or enhanced usual care only (CONTROL GROUP). Groups will be compared at baseline, midpoint, endpoint, and 1 and 6 months post-treatment. Participants assigned to the control group with have the opportunity to receive the experimental intervention (TH-CBT) after the data collection period (e.g., after the 6-month follow-up evaluation). Given the public health impact of improved depression treatment in PD, the knowledge to be gained may be significant and the project could directly impact clinical practice.

The primary objective of this study was to examine the effect of levodopa-carbidopa intestinal gel (LCIG) compared with optimized medical treatment (OMT) on dyskinesia in participants with advanced Parkinson's disease (PD).

This study is a double-blind, randomized, placebo-controlled, 2-way crossover study to evaluate the safety of CVT-301 levodopa (l-dopa) when co- administered with the first daily dose of oral levodopa/carbidopa for early morning OFF symptoms in patients with Parkinson's disease (PD).

This multiple-center, 3-part, single-blind dose escalation (Part A), randomized, double-blind (Part B), and open-label multiple dose extension (Part C) study will be conducted in male and female subjects with neurogenic orthostatic hypotension to evaluate the effect of TD-9855 in improving symptoms of orthostatic intolerance.

Parkinson's disease (PD) is a neurodegenerative brain disorder that impairs the ability to perform functions such as grooming, dressing, cooking, and other activities of daily living. PD affected between 4.1 and 4.6 million people worldwide in 2005, and it is projected that up to 9.3 million people will be affected by 2030. Although current pharmacological therapies provide beneficial effects on motor symptoms of the disease (tremor, rigidity, and bradykinesia), intolerable disability eventually develops in most patients. A disease-modifying therapy that slows disease progression is a major unmet medical need in PD. Numerous agents have neuroprotective effects in pre-clinical laboratory models, but none have been shown to have indisputable disease-modifying effects in clinical trials for patients with PD. The purpose of this research study is to investigate how the brain and motor behavior changes in PD over time in response to rasagiline which is a monoamine oxidase-B(MAO-B) inhibitor. The drug rasagiline will be tested in this study as the MAO-B inhibitor. Rasagiline has been prescribed for many years to treat symptomatic Parkinson's disease. It is FDA approved for the treatment of Parkinson's disease but has not been shown to slow disease progression. The outcome and impact of this study will provide the first evaluation of MAO-B inhibitors at slowing the progression of the nigrostriatal pathway using advanced Magnetic Resonance Imaging (MRI) and functional Magnetic Resonance Imaging (fMRI) methods in PD.

This study will be an open-label, randomized, three-period cross-over pharmacokinetic evaluation of CVT-301 compared with the Reference Listed Drug (RLD), orally administered carbidopa/levodopa, in healthy volunteers.

Parkinson's disease (PD) is characterized by dopaminergic neurons degeneration of the substantia nigra, in the midbrain, resulting in the presence of motor disorders, such as tremor, rigidity, bradykinesia, and postural instability. Researches have shown that mental rehearsal in learning motor skills through mental practice (MP), which associates the physical practice to somatosensory imagination to action, causes positive effects in several motor tasks, such as the speed of motion, muscle strength performance and accuracy. Thus, this study aims to report the effects of MP as a tooth brushing training strategy in people with Parkinson's disease. This project was approved by the Ethics Committee in Research with Human beings of UFPE and attempt to compare the presence of bacterial biofilm before and after 8 weeks of brushing through the mental practice training, based on O'Leary's index. The sample consisted of 35 people, divided into two groups: Intervention Group consists of 17 people with Parkinson's, in stages I to III of the disease, who underwent brushing orientation associated with PM, and the control group people without the disease, who received only orientation brushing. Then, the data were evaluated by factorial ANOVA 2x2 and post hoc Tukey test considering p <0.05. It was observed that after the intervention was a significant improvement of the control dental biofilm.