Summary: Clinical diagnosis of Parkinson's disease (PD), multiple system atrophy (MSA) and dementia with Lewy bodies (DLB) is challenging, especially in the early stages. Each disease is associated with distinct conformers of misfolded alpha-synuclein (maS) which form typical protein aggregates in the brain and represent key disease biomarkers. Thus, detection and characterization of intracerebral maS aggr...

Summary: This study is researching an experimental drug called REGN7544 (called study drug). The study is focused on participants with POTS. The aim of the study is to see how safe, tolerable, and effective the study drug is. The study is looking at several other research questions, including: * How the study drug changes heart rate and blood pressure in participants with POTS * What side effects may happe...

Summary: The primary objective of the study is to evaluate the efficacy of TEV-56286 administered orally for the treatment of adult participants with Multiple System Atrophy (MSA). A secondary objective of the study is to evaluate specific efficacy parameters of TEV-56286. Another secondary objective is to evaluate the safety and tolerability of TEV-56286. The planned study period per participant is 56 wee...

Summary: Alpha-synucleinopathies refer to age-related neurodegenerative and dementing disorders, characterized by the accumulation of alpha-synuclein in neurons and/or glia. The anatomical location of alpha-synuclein inclusions (Lewy Bodies) and the pattern of progressive neuronal death (e.g. caudal to rostral brainstem) give rise to distinct neurological phenotypes, including Parkinson's disease (PD), Mul...

Summary: Short description of the protocol intended for the lay public. Include a brief statement of the study hypothesis (Limit : 5000 characters) The sickle cells anemia is a monogenic disease linked to the presence of Hemoglobin S due to a mutation in the Hemoglobin Beta chain. The lack of circulating oxygen induces a polymerization of the Hemoglobin S which change the red cell conformation into sickle....

Summary: This is a prospective, phase 3, multicenter, double-blind, randomized placebo-controlled study to investigate the efficacy, safety, and pharmacokinetics (PK) of repeat doses of IgPro20 in participants with post SARS-CoV-2 infection 2019 postural orthostatic tachycardia syndrome (post-Coronavirus Disease 2019 \[COVID-19\] POTS \[post-COVID-POTS\]).

Summary: The goal of this pilot clinical trial is to examine the safety and feasibility of SCONE as home based therapy for orthostatic hypotension and bowel dysfunction in individuals with spinal cord injury or multiple system atrophy. The main aims of the study are: * To establish a safe protocol for home-based transcutaneous spinal cord stimulation therapy at the research centre * To test the safety and ...

Summary: Patients routinely undergo deep brain stimulation (DBS) for treatment of symptoms related to neurodegenerative conditions, most commonly Parkinson's disease. In the Investigator's experience, and published evidence shows, that stimulation has effects on the autonomic nervous system. In patients undergoing therapeutic DBS for a particular subtype of Parkinsonism (Multiple System Atrophy), the effec...

Summary: Since 1980, the global prevalence of obesity, commonly defined as a body mass index (BMI) of 30 or higher, has doubled. Importantly, high levels of central adiposity (i.e., abdominal fat) is associated with numerous PNI-related sequelae, including increased levels of psychological distress, cognitive deficits, ANS dysfunction, and immune marker abnormalities. To our knowledge, rigorous investigati...

Summary: This is a pilot dose-finding study to test the hypothesis that mirabegron increases systolic blood pressure (BP), prevents syncope/presyncope, and improves the quality of life (QOL), functional capacity, chest pain, and overactive bladder (OAB) symptoms in patients with postural orthostatic tachycardia syndrome (POTS) who have a documented history of hypotension inadequately responsive to conventi...

Summary: This is a double-blind, randomized, sham-controlled clinical trial that aim to verify the safety and the efficacy of anodal transcranial direct current stimulation (tDCS) cerebellar symptoms in Multiple System Atrophy type C (MSA).

Summary: The objective of this randomized, double-blinded, placebo-controlled Phase 1 investigation is to evaluate the safety and potential clinical effect of AAV2-GDNF delivered to the putamen in subjects with either a possible or probable diagnosis of Multiple System Atrophy.