Clinical Trials

The purpose of this study is to provide feasibility data for a novel method of defining patient-specific functional anatomic targets for Globus Pallidus Internus (GPi) Deep Brain Stimulation (DBS) placement.

The purpose of this study is to determine if reduced nigrostriatal dopamine transmitter, autonomic dysfunction and increased αS expression or misfolding in the gastric, duodenal or sigmoid mucosa are associated with abnormal GI motor and barrier functions and with submucosal neuronal dopamine and αS expression in patients with PD with GI symptoms.

The purpose of this study is to evaluate the impact of the frequency of assessments on the variability over time, reliability, and compliance for the Parkinson's disease (PD) diary in patients with PD in whom medications do not provide adequate control of symptoms.

The purpose of this proposal is to explore whether the presence of Lewy pathology in the gastrointestinal tract is associated with functional disturbances such as constipation and dysphagia in both Parkinson’s disease patients and non-Parkinson’s disease patients, and if present in the latter patients whether this relates to the subsequent development of Parkinson’s disease.

The purpose of this study is to analyze DNA and genome-wide analyses, as well as metabolomics and biomarker studies, from patients in the spectrum clinically diagnosed Parkinson disease, Lewy Body disease and related diseases. This would include persons experiencing the earliest manifestations to those with established Parkinsonism. 

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 ...

This randomized, multicenter, placebo-controlled, double-blind study will evaluate the efficacy and safety of inhaled CVT 301 compared with placebo in PD patients experiencing motor response fluctuations (OFF phenomena) as an outpatient (i.e., at home) and in the clinic. Patients who successfully complete this study will be eligible to enroll into a 12 month treatment extension (CVT-301-004E) study .

The purpose of this study is to evaluate the safety of intracisternal LY3884961 administration in patients with moderate to severe Parkinson's disease with at least 1 pathogenic GBA1 mutation. 

This study is investigating the usefulness of using functional magnetic resonance imaging (fMRI) to monitor brain activation during deep brain stimulation for Parkinson's Disease. The study may determine the relationship between patterns of brain activation and therapeutic outcome and/or side effects.

The purpose of this study is to answer the question, "Do baseline clinical and/or genetic factors predict survival, and other outcomes (e.g., dementia, hallucinations, wheelchair use) in Parkinson's disease (PD)?"

This study will determine the validity of predictive and surrogate biomarkers for the detection of Parkinson's disease and Parkinson's disease cognitive decline.

The purpose of this study is assess the safety, tolerability and effectiveness of NLY01 in subjects with early untreated Parkinson's disease (PD). Evidence suggests NLY01, a pegylated form of exenatide, may be beneficial in PD and is being developed as a potential treatment for neurodegenerative disorders.

A Phase 3, Twelve-week, Multi-Center, Multinational, Randomized, Double-Blind, Double-Dummy, Parallel Group Study to Determine the Efficacy, Safety and Tolerability of P2B001 Once Daily Compared to its Individual Components in Subjects With Early Parkinson's Disease and to a Calibration Arm of Pramipexole ER.

The purpose of this study is to document characteristics of real-world outcomes for Boston Scientific Corporation’s commercially approved Vercise™ System for Deep Brain Stimulation (DBS) when used according to the applicable Directions for Use.

The purpose of this study is to measure alpha-synuclein in peripheral body tissues and fluids in Parkinson's disease (PD). This may help in developing better treatments for PD patients in the future.

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 Parkinson Progression Marker Initiative (PPMI) is a study to assess progression of clinical features, digital outcomes, and imaging, biologic and genetic markers of Parkinson’s disease (PD) progression in study participants with manifest PD, prodromal PD, and healthy controls. The overall goal of PPMI is to identify markers of disease progression for use in clinical trials of therapies to reduce progression of PD disability.

To learn more about the biomarkers for preclinical parkinson's disease. 

This study is a 12-month, dose-level blinded, multicenter study of 2 inhaled dose levels of CVT-301 for the treatment of up to 5 OFF episodes per day in PD patients experiencing motor fluctuations (OFF episodes). All patients will receive active treatment, but patients will be blinded to dose level. This will serve as an extension to the CVT-301-004 study for those patients who participated in that study and remain eligible for this study. In addition, patients who previously completed the CVT-301-003 study as well as additional CVT-301 naïve patients may be enrolled if they meet the CVT-301-004E eligibility criteria.

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 feasibility of adjuvant high frequency stimulation of the GPe using Deep Brain Stimulation.

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 ...

The purpose of this study is to evaluate the use of a single infusion of zoledronic acid-5 mg (ZA) vs. placebo for the prevention of fractures in men and women aged 65 years and older with Parkinson's Disease with 2 years of follow-up.

This is a 52-week open-label study to evaluate the safety and tolerability of ADS-5102 oral capsules, an extended release formulation of amantadine, in Parkinson's Disease (PD) patients with Levodopa Induced Dyskinesia (LID).

The purpose of this post market study is to support the chronic clinical performance of the Infinity Deep Brain Stimulation (DBS) Implantable Pulse Generator (IPG), DBS leads, extensions and related system components.

The purpose of this study is to assess the safety, tolerability, and effectiveness of NLY01 in subjects with early untreated Parkinson's Disease (PD) and collect data on the effect of the drug on antibody testing (DaT).

Does dual hemispheric stimulation of the subthalamic nucleus (STN) and fornix/hypothalamus potentially improve cognitive function in patients with Parkinsons disease.

The purpose of this study is to perform biopsies of one of the glands that make saliva. The biopsied tissue will then be analyzed to see if it has changes that occur in Parkinson's disease. This study will determine whether it is possible to do a second biopsy a few years after a previous biopsy and determine whether there are changes in the biopsy that would allow for analysis of disease progression.

The purpose of this study is to determine the effectiveness, safety and tolerability of APL-130277 to treat acute motor fluctuation episodes in levodopa responsive patients with Parkinson's disease.

The purpose of this study is to determine whether oral inosine dosed to moderately elevate serum urate (from ≤5.7 mg/dL to 7.1-8.0 mg/dL) over 2 years slows clinical decline in early Parkinson's disease.

A  study in L-Dopa responsive parkinson's disease patients with motor fluctuations ("OFF" episodes), designed to evaluate the long-term safety, tolerability and effectiveness of APL-130277.

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.

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 ...

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 ...

In this study, the investigators will monitor extracellular neurotransmitter levels using a probe that is able to perform real time electrochemical detection during deep brain stimulation surgery. The overall question this study is designed to answer is: Are there neurotransmitters released during deep brain stimulation?

The purpose of this study is to investigate if spasmotic dsyphonia (SD) patients have neurological diseases like dystonia, cervical dystonia, Parkinson’s disease more than normal population

Evaluate the safety and efficacy of unilateral focused ultrasound pallidotomy using the ExAblate 4000 System in the management of dyskinesia symptoms or motor fluctuations for medication refractory, advanced idiopathic Parkinson's disease.

Does use of the Mobilaser reduce freezing of gait (FOG) and stride reduction in patients with Parkinson's disease and Parkinsonism.

This study is a 4-week, multicenter, randomized, double-blind, placebo-controlled, ascending dose, 4-period crossover study designed to evaluate the safety, tolerability, efficacy, and PK of JZP-110 (75, 150, and 300 mg) in the treatment of excessive sleepiness in adult subjects with idiopathic PD.

This study will investigate the effects of Real-Time Feedback Training and treadmill training to improve gait posture in subjects with Parkinson’s Disease.

A randomized placebo-controlled trial in individuals with Parkinson's disease dementia to evaluate the safety and efficacy of three doses of study drug LY3154207 in participants with mild-to-moderate Parkinson's disease dementia treated for 12 weeks.

The purpose of this study is to investigate the effects of subthalamic nucleus and globus pallidus interna deep brain stimulation on bowel symptoms and the ability to smell things in patients with Parkinson disease and constipation.

The primary aim of this study is to compare effectiveness of immediate versus extended-release melatonin as a supplement affecting the sleep cycle among patients with Parkinson’s disease as assessed by modified Mayo Sleep Questionnaire (MSQ).  The secondary aim is to evaluate the superiority and effect of immediate and extended-release melatonin versus not taking any melatonin on sleep cycle among patients with Parkinson’s disease as assessed by modified Mayo Sleep Questionnaire (MSQ).

Rapid eye movement (REM) sleep behavior disorder (RBD) is very common in patients with Parkinson disease and manifests with the loss of REM sleep atony, vigorous motor jerks, nocturnal vocalizations ...

The purpose of this study is to compare treadmill walking and over ground walking gait characteristics in people diagnosed with Parkinson’s disease.

The purpose of this study is to determine if adaptive rhythmic auditory stimulation (ARAS) is a safe means of improving gait; i.e., fewer falls, abrupt accelerations/decelerations in patients with movement disorders. Furthermore, we aim to provide patients with a safe environment in which they can safely navigate through an enjoyable experience (guided art tour) that provides exercise, social engagement, and exposure to art.

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.

This study is being done to collect skin samples from people with and without neurodegenerative and vascular disorders including Parkinson’s disease (PD), Alzheimer’s disease (AD), amyotrophic lateral sclerosis (ALS), stroke and many others. We will use these skin samples to make and bank (store) a group of cells (cell line) called inducible pluripotent stem (iPS) cells.

The purpose of this study is to understand why patients with multiple system atrophy, Parkinson’s disease, Parkinson’s disease with autonomic failure, and dementia with Lewy bodies have a fall in blood pressure on standing up. It is believed that different patients develop these symptoms for different reasons. The reasons could be:

• damage to nerve supply to the legs

• the autonomic nerves are not working properly

• the brain is not controlling blood pressure or heart rate properly

This study will look at these different reasons.

Determine 1) the magnitude of SMG and skin a-syn density change over time, 2) the

improvement in adequate tissue acquisition doing bilateral SMG biopsies, 3) any laterality differences between

SMG gland a-syn density, 4) correlate a-syn density and changes in density between SMG and skin biopsies

Specific Aim 1. Determine, with bilateral submandibular gland (SMG) biopsies in 30 clinically

diagnosed subjects with Parkinson’s disease (PD) and 20 clinically probable REM sleep behavior

disorder (RBD) subjects whether bilateral biopsies improve the rate of acquisition of adequate

glandular tissue, whether alpha-synuclein (a-syn) SMG pathology ...

The purpose of this study is to develop and test the effectiveness of an investigational imaging technique called magnetic resonance elastography (MRE) to measure the stiffness (mechanical properties) of tissues.

The purpose of this study is to facilitate focus groups to assess/identify important qualities and characteristics that dementia caregivers are looking for in a supportive person, and to design a prototype website for matching current and former caregivers.

Most individuals with rapid eye movement (REM) sleep behavior disorder (RBD) develop additional
neurological symptoms and are subsequently diagnosed with overt synucleinopathies, including dementia with
Lewy bodies (DLB), Parkinson disease (PD), and multiple system atrophy (MSA), indicating that RBD
represents a prodromal stage of synucleinopathy. RBD therefore offers a window of opportunity to intervene
with neuroprotective treatments at the earliest stages of disease when treatment is most likely to be effective.
Recognizing the importance of early intervention, key federal agencies focused on neurodegenerative disease
have proposed high priority recommendations for prodromal aspects of synucleinopathies, including
specifically RBD, to prepare for ...

The goals of the study are to prospectively evaluate clinical and laboratory biomarkers of multiple system atrophy and Parkinson’s disease at early clinical disease, at a premotor stage (PAF), and even at a prodromal stage (RBD).

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.

The purpose of this study is to optimize profile questionnaire and matching algorithm developed in Phase I and implement in final website design, and to determine if algorithmically matched participants have statistically significant increase in match satisfaction and self-reported sense of resiliency and quality of life over randomly matched caregivers.

The purpose of this study is to develop a diagnostic test using tissue biomarkers to provide an accurate diagnosis of alpha-synucleinopathies in patients with Parkinson's disease, Multiple System Atrophy, Dementia with Lewy bodies and Pure Autonomic Failure. Using a simple diagnostic test will improve clinical accuracy in diagnosing, earlier diagnosis, and distinguishing between neurodegenerative diseases.

The purpose of this study is to learn more about Lewy Body disease and a skin condition called Bullous Pemphigoid.

The primary purpose of this study is to create a Mayo Clinic repository for  neurodegenerative disorders such as Parkinson’s disease (PD), Parkinson’s disease dementia and dementia with Lewy bodies (PDD/DLB), multiple system atrophy (MSA), progressive supranuclear palsy (PSP), cortico-basal degeneration (CBD), and other even rarer forms of neurodegeneration.

The purpose of this study is to study the structure and biochemistry of the brain and/or bodily fluid and tissue after death.  Comparison of specimens from normal and diseased individuals provide essential clues that lead to a greater understanding of the diseased state which, in turn, will lead to new ideas for therapy.