Active clinical trials for "REM Sleep Behavior Disorder"

142 cases of patients with iRBD will be recruited from the neurology department of Ruijin Hospital, th second Affiliated Hospital of Soochow University and wuhan Union Hospital. After the informed consent was signed, they were divided into a trial group and a control group randomly. Each group contains 71 cases. The patients in the trial group will be treated with Idebenone, while the patients in the control group was treated with placebo. Both groups of subjects will be treated for 5 years, and patients will be followed-up and evaluated in the first year, 3 years and 5 years after treatment. The observations include the MDS-UPDRS questionnaires evaluation, blood biomarker measurements and fMRI or PET-MR examination to make sure whether the patients has converted to synucleinopathies. Study hypothesis: Idebenone therapy for patients with iRBD is safe and effective in delaying disease progression into synucleinopathies.

The purpose of this study is to investigate the long-term effects of treatment with the selective post-synaptic a1-adrenergic blocker terazosin on serial in a population of subjects with defined pre-motor Parkinson's disease (PD) risks and abnormal imaging exams. Imaging changes will be correlated to the presence and severity of motor and non-motor symptoms of PD, measured by validated clinical scales and cardiac autonomic function tests.

REM Behavior Sleep Disorder (RBD) is a sleep disorder causing people to 'act out' their dreams. A high percentage of individuals with idiopathic RBD (iRBD) are known to develop conditions affecting the neurons in the brain such as Parkinson's disease (PD). Based on the increased risk to develop PD, individuals with iRBD are currently considered ideal candidates for therapies that can possibly protects brain cells, due to the critical window of opportunity to intervene early before brain cell loss progresses significantly. Early changes of PD are associated with a number of symptoms including loss of smell, constipation, anxiety and depression. In addition, early heart and brain abnormalities can be visualized using specialized imaging techniques called 123I-MIBG myocardial scintigraphy (MIBG) and dopamine transporter (DAT) single photon emission computerized tomography (SPECT) respectively. The combined presence of certain symptoms and the use of these imaging techniques are considered early markers of PD in individuals with iRBD. In other conditions, like heart failure, MIBG abnormalities are reversed by drugs able to block excessive adrenergic stimulation, known as beta-blockers. In this study the investigators want to learn about the effect of treatment with the beta-blocker carvedilol on MIBG abnormalities found in iRBD patients at risk to develop PD. The investigators believe that reversing the MIBG abnormality might prelude to a slowing of the neurodegenerative process. This drug is approved by the U.S. Food and Drug Administration (FDA) for congestive heart failure, hypertension and left ventricular dysfunction after myocardial infarction. However, carvedilol is not approved by the FDA in patients with iRBD at risk for PD. The available doses for this drug oral formulations are 3.125mg, 6.25mg, 12.5mg and 25mg. Changes visualized with the MIBG imaging technique will be correlated to the presence and severity of neurological (i.e. tremors, stiffness, slow movements, walking difficulties) and other symptoms associated with PD (i.e. abnormal smell, constipation, depression, color vision abnormalities), as measured by specific clinical scales and exams.

Parkinson's disease (PD) is characterized by many non-motor symptoms that occur several years before the diagnosis, in particular idiopathic REM behavior disorder (iRBD), which is associated with autonomic impairment. The purpose of this study is to investigate the effect of treatment with the selective post-synaptic a1-adrenergic blocker terazosin on 123I-MIBG myocardial uptake in a population of subjects with defined pre-motor PD risks (i.e. hyposmia and RBD) and abnormal baseline 123I-MIBG uptake, with or without 123I-Ioflupane uptake abnormality or PD motor symptoms. Scintigraphic changes will be correlated to motor and non-motor severity of PD, measured by validated clinical scales and cardiac autonomic function tests.

The purpose of this study is to investigate the long-term effects of treatment with the adrenergic blocker carvedilol on serial DaTscan, a dopamine transporter (DAT) single photon emission computerized tomography (SPECT) imaging technique in a population of subjects with defined pre-motor Parkinson's disease risks (i.e., REM sleep Behavior Disorder (RBD) and at least one among hyposmia, constipation, depression and color vision abnormality) and abnormal 123I-Metaiodobenzylguanidine (MIBG) scintigraphy.

The purpose of this research is to compare the efficacy of immediate versus extended-release melatonin as a supplement affecting the sleep cycle in patients with Parkinson disease and Rapid Eye Movement Sleep Behavior Disorder.

This is a Phase II, randomized, placebo-controlled, double-blind, crossover study on the CNS and pharmacodynamic effects of CST-103 co-administered with CST-107 in 4 subject populations with Neurodegenerative Disorders.

The investigators propose using DaTscan in patients with REM sleep behavior disorder (RBD), 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.

To assess the effects of a daily single oral dose of 20 mg tasimelteon compared to baseline on events of dream enactment on patients with REM Behavior Disorder, as measured by a daily log. To assess the effects of 20 mg tasimelteon compared to baseline on insomnia= symptoms, as measured by validated questionnaires (Insomnia Severity Index [ISI], Pittsburgh Sleep Quality Inventory [PSQI], Epworth Sleepiness Scale [ESS], Clinical Global Impression of Change Scale (CGI-C), Patient Global Impression of Change Scale (PGI-C)) as well as rest/activity pattern from actigraphy. To assess the effects of 20 mg tasimelteon on patients who have a reduced or aberrant melatonin secretion compared to normal secretion by measuring salivary DLMO at baseline and correlating with the degree of change in RBD symptoms by end of the study. To assess for any role a patient's unique genome may play in their response to tasimelteon; obtained via whole genome sequencing. To assess the safety and tolerability of a daily single oral dose of 20 mg tasimelteon.

This study is to investigate the safety and efficacy of PXS-4728A as an intervention therapy in participants with iRBD. This study will be conducted in participants aged 50 to 80 years of age and will investigate a single dose level.