Active clinical trials for "Parkinson Disease"

The purpose of this study is to assess the effect of tryptophan depletion on mood and behavior in Parkinson's disease (PD) patients treated with deep brain stimulation (DBS) of the subthalamic nucleus (STN). By doing this, the investigators hope to be able to identify risk factors for and mechanisms underlying psychiatric side effects of STN DBS. The study will be an intervention study with a placebo controlled, randomized cross-over design.

The purpose of this study is to evaluate the safety, efficacy of intra-putaminal infusion of AAV-hAADC-2 (adeno-associated virus encoding human aromatic L-amino acid decarboxylase) by stereotaxic surgery in patients with advanced Parkinson's disease.

Phase 3, international, multicenter, randomized, double-blind, placebo-controlled, parallel-group, 3-arm safety and efficacy study (Part A) with an open-label phase (Part B).

Parkinson's disease (PD) causes several non-motor autonomic symptoms including lower urinary tract dysfunction. Their symptoms can be managed with antimuscarinics with variable efficacy. Fesoterodine offers a new therapeutic molecule to target the symptoms of urinary frequency, urgency and nocturia in this patient population. The purpose of this protocol is to compare the impact of fesoterodine to placebo on urinary urgency and nocturnal sleep problems in a heterogeneous population of PD patients in a cross-over fashion. A representative number of patients with baseline overactive bladder (OAB) symptoms and Parkinson's disease will be recruited to receive either the active drug or placebo for the first phase of eight weeks. The groups will then be crossed-over during the second phase of eight weeks. The main outcomes assessed will be the urgency episodes on a 3-day voiding diary, as well as the nocturnal sleep problems will be the Parkinson's Disease Sleep Scale (PDSS).

This study seeks to evaluate the long-term safety and effectiveness of nelotanserin for the treatment of visual hallucinations (VHs) and Rapid Eye Movement (REM) Sleep Behavior Disorder (RBD) in subjects with Lewy body dementia (LBD).

The purpose of this study is to evaluate the safety and effectiveness of deep brain stimulation of the nucleus basalis of Meynert (also called the "nbM") at improving memory in Parkinson's disease patients with mild cognitive impairments and memory difficulties. Patients with Parkinson's disease (PD) that are eligible for Deep Brain Stimulation (DBS) therapy for improvement of their motor symptoms and with evidence of mild cognitive impairments and memory difficulties will be enrolled.

The therapeutic effects of exercise in Parkinson's disease (PD) are commonly reported, however the mechanisms are unknown. The purpose of this study is to investigate the potential mechanisms of exercise in the brain for the treatment of PD.

This study will evaluate the effects of transcranial direct current stimulation (tDCS) in combination with locomotor training in patients with Parkinson's disease (PD) and freezing of gait (FOG).

Parkinson's disease (PD) is a progressive neurological disease that has effects on both movement and mental health. One of the most common mental health complications of PD is depression. Up to 30% of Parkinson's patients will experience depression at some point. We aim to investigate whether transcranial direct current stimulation (tDCS), a type of electrical stimulation for the brain, can improve depression in PD as well as improve motor function in PD.

The purpose of this study is to explore the efficacy of the drug Amantadine for the treatment of freezing of gait in patients with Parkinson's Disease. The investigators hypothesize that amantadine is useful for management of freezing of gait in subjects with Parkinson's Disease.