View clinical trials related to Nervous System Diseases.
Filter by:The majority of deaths after myocardial infarction occurs in patients with preserved left ventricular ejection fraction (>35%) for whom no prophylactic strategies exist. Periodic Repolarization Dynamics (PRD) and Deceleration Capacity (DC) of heart rate are autonomic risk markers that identify a new high risk group of patients with LVEF 35-50% who have the same poor prognosis as patients with LVEF ≤35%. In SMART-MI, post-infarction patients with LVEF 35-50% and abnormal PRD and/or DC will be randomly assigned to biomonitoring-guided therapy or conventional follow-up.
Pharmacologic approaches to increase levels or actions of the vasodilatory peptide angiotensin-(1-7) are currently in development for the treatment of hypertension based on findings from animal models. There are limited and contradictory clinical studies, however, and it is not clear if this peptide regulates blood pressure in humans. The purpose of this study is to better understand the cardiovascular effects angiotensin-(1-7) in human hypertension, and to examine interactions of this peptide with the autonomic nervous system. The investigators propose that the difficulties in showing angiotensin-(1-7) cardiovascular effects in previous clinical studies relates to the buffering capacity of the baroreceptor reflex to prevent changes in blood pressure. Autonomic failure provides the ideal patient population to test this hypothesis. These patients have loss of baroreflex buffering and have low levels of angiotensin-(1-7) in blood. The investigators will test if angiotensin-(1-7) infusion can lower blood pressure in patients with autonomic failure, and will determine the hemodynamic and hormonal mechanisms involved in this effect.
The aim of this study is to evaluate the effect of exercise training in the autonomic nervous system activity in breast cancer patients, who underwent doxorubicin medication.
Young children age 6 month to 6 years are often not able to cooperate for advanced OCT eye imaging. The purpose of this study is to investigate the use of a novel long-working distance swept source (SS) optical coherence tomography imaging system with fixation alignment for use first in young adults, older children, and then young children ages 6 months to 6 years. The investigator's future goal is to obtain important retinal and optic nerve information from OCT in clinic in these young children.
The primary goal of the Phase II EXTEND trial is to investigate the effects of open-label hydroxyurea treatment, escalated to maximum tolerated dose, for children with Sickle Cell Anemia and either conditional (170 - 199 cm/sec) or abnormal (≥200 cm/sec) Transcranial Doppler velocities. The primary endpoint will be measured after 18 months of hydroxyurea but treatment will continue until a common study termination date.
This is a Phase 2, randomized, double-blind, placebo-controlled, dose range finding study in subjects who have diabetic peripheral neuropathy (DPN). The study will enroll approximately 24 subjects. Subjects will be randomized to receive one of 3 treatments: PDA-002 (3 x 10^6 cells), PDA-002 (30 x 10^6 cells), or placebo (vehicle control) in a 1:1:1 randomization approach. Investigational product or placebo will be administered monthly (3 administrations total on Study Days 1, 29, and 57).
The goal of investigators is to study the kinetics of action of a single dose of intrathecally-infused rituximab upon cerebro-spinal fluid (CSF) biological targets in progressive MS patients. Various markers of central nervous system inflammation (osteopontin, Tumor Necrosis Factor α, IgG secretion) and neurodegeneration (neurofilament) are studied at multiple time-points, assuming that a definitive action upon CSF biological targets would be strongly predictive of a delayed clinical action.
Background: HIV can sometimes cause HIV-associated neurocognitive disorder, or HAND. HAND is HIV-associated neurocognitive disorder. It can affect memory, thinking, or concentration. It can cause mood changes. HAND may be caused by HIV hiding in the central nervous system then causing inflammation. Researchers want to see if a drug for inflammation (Anakinra) can help people with HIV. Objective: To see if a drug for inflammatory diseases is safe for people with HIV-infection on antiretroviral therapy. Eligibility: Adults 18-61 years old with HIV who are enrolled in another study. Design: Participants will be screened with medical history, physical exam, and blood and urine tests. Participants will have up to 15 study visits over 16 weeks. At study visit 1, participants will have: - Screening tests repeated. - Brain magnetic resonance imaging (MRI) scans. They will lie on a table that slides into a metal cylinder in a strong magnetic field. They will get a dye inserted by a thin plastic tube in a vein. - Lumbar puncture. The lower back will be numbed. A needle will collect fluid from between bones in the back. - Tests of memory, thinking, and attention. Participants may also fill out forms and do tasks. Participants will learn how to inject the study drug. Over 8 weeks, they will give themselves the study drug at home every day. They will do up to 3 injections at once. They will write down their injections and any side effects. Participants will have 5 weekly visits while taking the study drug. They will answer questions and have blood drawn. At weeks 8 and 16, they will have a visit that repeats visit 1.
Background: - Magnetic resonance imaging (MRI) has been used for decades to help diagnose and monitor neurological disorders like multiple sclerosis (MS). Researchers want to improve how MRI pictures are taken. They also want to learn more about using newer MRIs with stronger magnets to get better pictures than standard MRIs provide. Objectives: - To collect data that will help researchers better understand MS and related diseases. Eligibility: - Adults 18 and older with MS or MRI findings that appear similar to MS, or with other neurological diseases that may look or act like MS. - Healthy adult volunteers. Design: - Participants will be screened with a review of their medical records. - Participants will have a baseline visit. It will include a physical exam, medical history, and neurological exam. They may have blood tests. - The study will last indefinitely. - Participants may have MRIs. Some MRIs may include a contrast dye. For this, a needle will be used to guide a thin plastic tube into an arm vein. - Participants may have up to 2 lumbar punctures per year. Skin will be numbed and a needle inserted between back bones will remove fluid. - Participants may give saliva samples and have an eye exam. - Participants may have evoked potential tests. These measure how the nervous system responds to different types of stimulation. Participants may sit in front of a TV and watch pictures on the screen. Or they may wear earphones that make a clicking noise or static. Or they may get a small electrical shock that may tingle and cause a hand or foot twitch. - Participants may have tests of strength, spasticity, sensations, balance, and/or walking.
This study targets patients with cisplatin-induced peripheral neuropathy and will allow us to: a) study peripheral neuropathy in diverse human sensory neurons in ways that were not possible previously; b) gain insight on druggable targets to treat or prevent this devastating side effect of chemotherapy; c) provide a human cellular model that can be used for screening of drugs to determine if they are neurotoxic. The combination of patient information and in vitro measurements provides a highly relevant and clinically useful model for studies aimed to impact treatment selection for the individual cancer patient.