Active clinical trials for "Parkinsonian Disorders"

Radiosurgical thalamotomy on GammaKnife has been shown to be effective in the management of tremors. However, several teams describe a significant risk of severe neurological complications. In addition, fitting the invasive frame and the need to travel to GammKnife centers often limit access to treatment in this population of elderly patients. Linear accelerators have greatly improved their precision, now reaching that of GammaKnife. A possible alternative is therefore to treat patients on linear accelerators, without an invasive frame. The objective of the FRACTHAL study is to assess the feasibility and safety of treatment of essential and / or parkinsonian tremor by fractional radiosurgical thalamotomy on a linear accelerator. The main hypothesis of the FRACTHAL study is based on the fact that dividing the dose into 3 sessions will both protect healthy tissue around the target while maintaining therapeutic efficacy on the treatment target.

An observational study aiming to study the natural history of a UK-wide patient cohort with ATP1A3-related disease.

Vascular parkinsonism (VP), parkinsonism resulting from ischemic cerebrovascular disease, was suggested in 1929. The main features are wide-based gait, postural instability, and falls, which make patients with VP frustrated. Currently, the treatment is challenging. Transcranial magnetic stiumation is a noninvasive procedure using electromagnetic induction to stimulate brain, and repetitive transcranial magnetic stiumation (rTMS) can selectively change brain activity to enhance desired effects. The aim of this study is to explore the therapeutic effect of rTMS for the VP.

Parkinson's Disease (PD) affects people universally, including all ethnic and socioeconomic groups, as a highly prevalent neurodegenerative disorder. However, there are several additional challenges for people living with PD in developing countries, especially those with low socioeconomic status. There is limited access to neurological care in Brazil due to an uneven distribution of neurologists and neurological facilities, which is more critical in the poorest regions. In addition, people in these vulnerable communities are more exposed to environmental pollution, including pesticides and metals used in agriculture and mining, respectively. Therefore, reliable data on the prevalence and incidence of PD in Brazil are essential to understand the proportion of this limited access to care for patients with PD, its burden in the region, and the potential role of environmental and lifestyle risk factors in PD. Unfortunately, the literature describes few epidemiological data on PD in Latin America, including Brazil, with an evident need for more information in their regions remarkably different. The investigators will carry out a population-based study in four municipalities in Brazil (Veranópolis-RS, Belém-PA, Jacobina-BA and Candangolândia-DF), comprising distinct communities in terms of ethnic groups, education levels, and environmental and lifestyle exposures, to portray the differences in Brazilian society. The present study will screen all people living in these regions aged 60 and over for parkinsonian symptoms and REM sleep behavior disorder (RBD). At least one neurologist will examine those selected to determine the diagnosis of PD or related disorders. The study also will evaluate a random sample of those individuals with a negative screen. Each participant selected after the screening will undergo clinical assessments and interview with the addition of a comprehensive questionnaire on clinical and sociodemographic data, prodromal symptoms, as well as lifestyle and environmental exposures, including occupational use and non-occupational use of pesticides and metals. An equal sample of blood and hair will be collected from individuals with PD and controls. The study will determine the prevalence of PD and related disorders in these distinct communities. An exploratory analysis also will be performed to determine the association between PD and each variable investigated.

The goal of this observational study is to learn about the impact of the different types of pain and of the domains involved in the autonomic disorders of inpatients and outpatients diagnosed with Parkinson disease (PD) and multiple system atrophy (MSA) admitted to Istituti Clinici Scientifici Maugeri Centers. The main aims are: Evaluate the prevalence of pain and characterize it in Parkinson's disease and atypical parkinsonisms (MSA) Evaluate the effect of rehabilitation on pain and autonomic symptoms Evaluate the prevalence of autonomic symptoms in Parkinson's disease and atypical parkinsonisms (MSA) Assess the impact of pain and autonomic symptoms on quality of life. Participants will perform neurological examination, rehabilitation program and clinical scales. Researchers will compare the two groups of patients (PD and MSA) and the effect of the rehabilitation on pain, autonomic symptoms and quality of life.

Rehabilitation is crucial in the treatment of people with Parkinson's disease (PD) as it can ameliorate motor and non-motor impairments, improving their clinical profile and quality of life. Considering the complex biological processes occurring in PD brain, the identification of accessible and measurable biomarkers to monitor the events induced by intensive rehabilitation would help in i)testing rehabilitation effectiveness, ii)improving the design of clinical trials and iii)personalizing the rehabilitation strategies by the prediction of patients' responsiveness. The objective of this project is the validation of Raman analysis of saliva and salivary extracellular vesicles (EV) for the differential diagnosis of Parkinson's disease (PD) and atypical Parkinsonism. The proposed diagnostic method can be integrated in the preliminary assessment and monitoring of the patient by providing a quickly and repeatable measurable biomarker. In the end, this will bring tothe personalization of the rehabilitation path and provide an indication on the outcome of the rehabilitation treatment.

The goals of this study are: 1) to identify biomarkers using neuroimaging that are associated with progression rate using statistical methods, and 2) to identify biomarkers that are associated with the differential diagnosis of Parkinson's disease and atypical parkinsonism.

The OxQUIP (Oxford QUantification In Parkinsonism) study is recruiting patients with Parkinson's Disease and Progressive Supranuclear Palsy. Currently available treatments for these diseases are symptomatic only, and do not have any preventive or disease-slowing effect. As new drugs are developed, there is a need to be able to evaluate them quickly, so that precious time and resources can be devoted to those showing most promise. This study follows participants intensively over an initially 3 year period, with the aim of identifying measures that can detect disease progression over much shorter time periods than is possible at present. During the study participants are asked to perform simple tasks while the investigators measure movements of the eyes, hands and body. The investigators also do some tasks on a tablet computer that measure cognitive performance.

Currently, the Movement Disorders Society (MDS)-UPDRS scale remains the gold standard to document the outcomes in clinical trials for Parkinson's disease (PD). The MDS-UPDRS is far from infallible, as it is based on subjective scoring (using a rather crude ordinal score), while execution of the tests depends on clinical experience. Not surprisingly, the scale is subject to both significant intra- and inter-rater variability that are sufficiently large to mask an underlying true difference between an effective intervention and placebo. Digital biomarkers may be able to overcome the limitations of the MDS-UPDRS, as they continuously collects real-time data, during the patient's day to day activities. In this study the investigators are interested in developing algorithms to track progression of bradykinesia, gait impairment, postural sway, tremor, physical activity, sleep quality, and autonomic dysfunction (the latter being derived from e.g. skin conductance and changes in heart rate variability).

The overall goal of this project is to identify, assess and longitudinally monitor subjects who are interested in participating in this study. Participants will enroll through a platform named PaWei, and provide informed consent prior to any study activities. PaWei will collect a variety of information, including participants' demographic information, overall health, family history of Parkinson's Disease, other clinical information (clinical drug use, drug efficacy, and comorbid disorders), mood status, sleep, diet, exercise, memory complaints, online cognitive tests, the Short-Form 8-Item Parkinson's Disease Questionnaire (PDQ-8), Movement Disorder Society-Unified Parkinson's Disease Rating Scale IB & II (MDS-UPDRS IB & II), Non-Motor Symptom Aassessment Scale for Parkinson's Disease (NMSS) , Hoehn and Yahr Scale, and other scales related to quality of life, etal---all through self-reported online questionnaires. Participants will also be asked to return to the PaWei every 3 months at regular intervals, to complete follow-up scales related to quality of life, and neuropsychological assessments, etal. Anyone with Parkinsonian Disorders is welcome to participate.