Active clinical trials for "Parkinson Disease"

Apathy is a multi-dimensional behavior characterized by impairments to motivation, planning and initiation; collectively called, goal-directed behavior. It is highly prevalent in patients suffering from neurological disorders such as Alzheimer's disease and Parkinson's disease (PD) as well as psychiatric disorders such as depression and schizophrenia. In PD, specifically, apathy is one of the more troublesome symptoms. Apathetic PD patients have greater disability, lower adherence to treatment plans and caregivers report greater stress and burden. Interventions grounded in behavioral economic theories, namely, financial and social incentives often promote positive behavioral change such as weight loss and smoking cessation. However, the effectiveness of these interventions varies across and within conditions and incentive type. It also tends to dissipate when incentives are no longer provided. To date, these approaches have not been used to promote behavior change in PD or other neurological conditions where apathetic behaviors are a pressing problem. The overall goal of this study is to test if behavioral economic approaches will reduce apathy, and subsequently, improve goal-directed behavior in Parkinson's disease.

The purpose of this study is to assess the effect of tavapadon on the change from baseline in total daily hours of "on" time without troublesome dyskinesia in L-Dopa-treated participants with Parkinson's Disease (PD) who are experiencing motor fluctuations.

This clinical trial is designed to test whether surgically injecting nerve cells that make dopamine into the brain of Parkinson's disease patients is safe, and to monitor for potential side effects.

This is a multicenter, randomized, double-blind, placebo-controlled study that will evaluate the efficacy and safety of intravenous (IV) prasinezumab versus placebo in participants with Early Parkinson's Disease (PD) who are on stable symptomatic PD medication.

The purpose of this study is to determine the safety, tolerability, and feasibility of psilocybin therapy for depression and anxiety in people with Parkinson's disease.

Opicapone (OPC) is a third generation catechol O methyltransferase (COMT) inhibitor (COMTi) developed by BIAL-Portela & Cª, S.A. It is approved as adjunctive therapy to preparations of L-DOPA/DDCI in adult patients with Parkinson's disease and end-of-dose motor fluctuations who cannot be stabilized on those combinations. Carbidopa and benserazide are both DDCIs used in association with L DOPA. When OPC is co administered with L DOPA/DDCI, peripheral COMT is inhibited and thus L DOPA plasma levels increase, increasing L DOPA bioavailability. The purpose of this Phase III study is to explore the potential of OPC to enhance the clinical benefit of L-DOPA in L DOPA treated patients in the early stages of Parkinson's Disease (PD) (patients without end-of-dose motor fluctuations, 'non fluctuators').

The development of a disease-modifying therapy that delays, reverses or stops the symptom progression remains the most important unmet goal in the treatment of Parkinson's disease (PD). Apart from its glucose lowering effect, glucagon-like peptide-1 (GLP-1) receptor stimulation has been investigated in animal models of PD and shown to increase neurogenesis, to arrest and possible reverse nigrostriatal damage, and to protect dopaminergic neurons from neurodegeneration. Exenatide is a synthetic analogue of human GLP-1, resistant to the metabolic processes that degrade it in its naturally occurring form. Results from a recent randomised, double-blind, placebo-controlled trial in PD showed that patients in active treatment for one year were improved compared to the placebo arm with regard to their performance in Movement Disorders Society - Unified Parkinson's Disease Rating Scale (MDS-UPDRS) motor subscale in the practically defined OFF medication state. The aim of this trial is to investigate the effect of Exenatide, 2 mg, subcutaneous injection, once weekly on disease progression represented by the change in longitudinal Positron emission tomography with 2-deoxy-2-[fluorine-18]fluoro- D-glucose (FDG-PET) in individual PD subjects, and to identify an Exenatide-related pattern in FDG-PET that will provide insight into the treatment-effect in the brain. The investigators chose the standard regimen prescribed in Type 2 Diabetes Mellitus (T2DM) and the regimen used in a recent trial in PD. The treatment period will be 18 months, and patients will be randomly assigned to either active treatment or placebo. Patients with PD diagnosis, stable on medication during the last year, and Hoehn and Yahr stage 2 or less will be evaluated for the inclusion.

The present study will test the hypothesis that the medication Ambroxol is safe and well tolerated and will improve cognitive and motor symptoms of Parkinson's Disease Dementia (PDD). Ambroxol has been shown to raise the levels of the enzyme beta-glucocerebrosidase resulting in lower the levels of the protein alpha-synuclein, both of which have been shown to improve cognition in mouse models. This will be a 52 week trial of Ambroxol in 75 individuals with PDD. Participants will undergo clinical, neuropsychological and neuroimaging assessment throughout the study to assess changes.

The purpose of this study is to identify factors predicting good results in patients treated with deep brain stimulation for Parkinson's disease. The study includes a comparison of two surgical methods used to provide this therapy.

The proposed study is to evaluate the safety and initial effectiveness of the ExAblate Transcranial MRgFUS) treatment of patients with L-dopa induced dyskinesia of Parkinson's disease (LID PD). Safety: To evaluate the incidence and severity of adverse events associated with ExAblate Transcranial 4000 MRgFUS treatment of dyskinesia of Parkinson's disease. Effectiveness: To determine the level of effectiveness of the ExAblate Transcranial MRgFUS treatment of LID in PD patients. Efficacy will be determined utilizing clinical rating scales for dyskinesia (UPDRS-IV and the Unified Dyskinesia Rating Scale) from examinations at Baseline, 3-Months and 12-Months post-ExAblate treatment.