Clinical Trials

This is a multi-center, randomized, double-blind, placebo-controlled, 2-arm, parallel group study to evaluate the efficacy and safety of ADS-5102 extended release (ER) capsules, an investigational formulation of amantadine, dosed once nightly at bedtime for the treatment of levodopa induced dyskinesia (LID) in subjects with Parkinson's disease (PD). The novel pharmacokinetic profile of ADS-5102 is expected to achieve i) maximal concentrations in the early morning through mid-day, when LID can be troublesome, and ii) lower concentrations in the evening, potentially reducing the negative impact of amantadine on sleep. This pharmacokinetic profile could enable higher doses to be tolerated with a once-nightly ER formulation than can be tolerated with an immediate-release formulation. The once-nightly dosing regimen may also provide enhanced convenience and compliance. In a previous clinical study, ADS-5102 met its primary endpoint; LID was significantly reduced as measured by the change in UDysRS score over 8 weeks vs. placebo.

Primary Objectives: - Part 1: To determine the safety and tolerability of GZ/SAR402671 administered orally, as compared to placebo in patients with early-stage Parkinson's disease (PD) carrying a GBA mutation or other pre-specified variants. - Part 2: To determine the efficacy of GZ/SAR402671 administered orally daily, as compared to placebo in patients with early-stage Parkinson's disease carrying a GBA mutation or other pre-specified variants. Secondary Objectives: Part 1: - To assess the pharmacokinetic (PK) profile of oral dosing of GZ/SAR4027671 in plasma when administered in early-stage Parkinson's disease patients carrying a GBA mutation. - To assess the exposure of GZ/SAR402671 in cerebrospinal fluid (CSF) when administered in early-stage Parkinson's disease patients carrying a GBA mutation. Part 2: - To demonstrate overall safety and tolerability of GZ/SAR4027671 administered orally in early-stage Parkinson's disease patients carrying a GBA mutation as compared to placebo. - To assess the pharmacodynamic response to daily oral dosing of GZ/SAR402671 in plasma and CSF as measured by glucosylceramide (GL-1) when administered in early-stage Parkinson's disease patients carrying a GBA mutation.

The purpose of this study is to determine whether 18F-AV-133 PET scans can be used to differentiate subjects with Parkinson's Disease from other movement disorders.

The investigators propose using DaTscan in patients with mild cognitive impairment (MCI), Parkinson's disease (PD), dementia with Lewy bodies (DLB), Alzheimer's disease (AD), and other neurodegenerative syndromes and disorders, to test several hypotheses - some confirmatory, and some novel. Such use will provide new data on the potential clinical and research utility of DaTscan in neurodegenerative diseases. The findings on DaTscan will be correlated with clinical diagnoses and other multimodal imaging studies (e.g., MRI, MRS, FDG-PET, and amyloid-PET) to enhance our understanding of neurodegenerative diseases.

This study is designed to evaluate the high-frequency range deep brain oscillations (HFO) as pathologic markers in patients undergoing deep brain stimulation for epilepsy or Parkinson disease. Newly developed technology allows for the chronic recording of these brain signals at the same time as clinical stimulation is occuring. We will learn both whether these HFO correlate with disease activity and whether the HFO change in response to ongoing stimulation (potentially giving insight into the underlying mechanism of action of DBS). Study participants will undergo DBS in the same way as is usually done but will receive this newer battery with ability to record brain signals.

The purpose of this study is to evaluate the safety, and feasibility of adjuvant high frequency stimulation of the GPe using Deep Brain Stimulation.

The purpose of this study is to evaluate the dose-related safety of BIIB054, to evaluate the pharmacodynamic effects of BIIB054 on the integrity of nigrostriatal dopaminergic nerve terminals, to assess the pharmacokinetic (PK) profile of BIIB054 and to evaluate the immunogenicity of BIIB054.

The purpose of this study is to evaluate the safety and effectiveness of Nelotanserin for the treatment of visual hallucinations in patients with Lewy body dementia.

The purpose of this study is to evaluate the safety and effectiveness of Boston Scientific's Vercise Deep Brain Stimulation (DBS) system in the treatment of patients with with advanced, levodopa-responsive bilateral Parkinson's disease (PD) which is not adequately controlled with medication.

The potential role of Small bowel bacterial overgrowth (SBBO) in weight loss occurring in patients with PD has not previously been examined. Our hypothesis is that SBBO is an important contributor to the development of weight loss in individuals with Parkinson's disease. The investigators propose to 1) examine the role of SBBO in weight loss occurring in patients with PD and 2) determine the response to its treatment with a poorly absorbed antibiotic. The investigators propose to perform a prospective, observational case-control study with an open-label therapeutic component. Cases will be defined as those PD patients who've experienced significant weight loss while Controls will be defined as those PD patients who have not experienced significant weight loss.