Active clinical trials for "Narcolepsy"

Links between orexin and amyloid processes have been underlined recently. During the Alzheimer's process an upregulation of the orexin mechanism has been observed. The pathophysiological mechanism of narcolepsy type 1 is linked to orexin deficiency. Thus, the investigators hypothesized that patients with narcolepsy may be protected from amyloid brain lesions, hallmarks of the Alzheimer's process. To test this hypothesis, the investigators analyzed the brain amyloid load measured by PET-scan amyloid brain imaging in patients with narcolepsy type 1 compared to controls without cognitive deficits.

The aim of the study is to evaluate, with a small-scale pilot study, the efficacy of Meditation Relaxation therapy for Sleep Paralyses in patients with narcolepsy. The study involves two arms, with intervention with Meditation Relaxation therapy or sham over a period of three months.

The purpose of this study is to investigate the genetic variants of clock and narcolepsy genes that determine the therapeutic effects of Stalevo® on the quality of sleep in patients with Parkinson's Disease.

Narcolepsy is a sleep disorder characterised by excessive daytime sleepiness and significantly impacts quality of life. People with narcolepsy demonstrate many potential barriers to being physically active, such as sleepiness and social isolation. Very little is known about how physical performance variables may be affected and influence disease experience in people with narcolepsy. This study aims to profile the physical fitness and physical functioning variables of adults with narcolepsy and to explore the relationship between physical variables, quality of life, symptom severity and disease experience in this cohort.

The project will improve scientific knowledge regarding a recent law applying potentially to every french driver. It will give for the first time an indication on the impact of alerting treatments on driving risks. It will reinforce the links between different research environments (sleep physiopathology, clinical research, cognitive neurosciences, driver's supervision, virtual reality, pharmacology) among the RESAT network (Réseau Eveil Sommeil Attention Transport). It will stimulate data acquisition in technological research to better understand the difference between real and simulated driving

This is a long-term, open-label, extension of the OMC-SXB-7 trial. Participants from the OMC-SXB-7 open-label trial may be entered without any requirement as to length of participation in that trial. Approximately 70 patients are expected to participate at up to 6 investigative centers located in Canada. The trial will continue for up to 24 months or until marketing approval, whichever occurs sooner.

The aim of this study is to investigate the role of the circadian system in patients with neurologic sleep-wake disorders. Therefore, overnight sleep will be distributed over 30 hours into repetitive sleep-wake cycles (poly-nap protocol), so that sleep episodes occur at different circadian phases. Vigilance, attention, risk behavior as well as sleep onset latency will be observed. Ambulatory accelerometer recordings gain more and more attention in the diagnostic work-up of sleep disorders, as they allow to also include the everyday rest-activity rhythm before examinations in the sleep laboratory. Advances of novel devices should improve the detection of rest and activity and therefore the estimation of sleep and wake, especially in patients with neurologic sleep-wake disorders exhibiting fragmented sleep. Two types of actimeters will be applied throughout our study protocol to explore better classification of sleep and wake phases and patterns of the rest-activity rhythm. This study is designed as an observational case-controlled study targeting the disorders of narcolepsy type 1 and idiopathic hypersomnia, and including interventional procedures in the healthy control group (sleep deprivation, sleep restriction) in a counter-balanced design.

Patients will be followed up for max 18 months. Information on the Adverse Events and potential misuse or abuse of Xyrem ® will be collected.

This study aims to review information of people with a sleep condition called narcolepsy. Narcolepsy is a condition that causes extreme sleepiness during the day including falling asleep suddenly. Study doctors will review the medical records of the participants from sleep clinics in Spain. They will do this from 1 year before the participant was diagnosed with narcolepsy up to the start of this study. Participants will visit the sleep clinic once. During this visit, the study doctors will carry out a short medical exam. Participants will also complete a few questionnaires during this visit. If participants cannot visit the clinic for any reason, the clinic staff will arrange a phone call instead.

This study will measure energy expenditure (the rate at which the body burns calories), physical activity and caloric intake in people with narcolepsy to learn more about how the risk of becoming overweight or diabetic may be affected. Healthy control subjects and people with narcolepsy between 18 and 55 years of age may be eligible for this study. Participants are withdrawn from their narcolepsy medication and undergo the following tests and procedures over 5 weeks before resuming medications. Blood draw for genetic studies. Collection of a cerebrospinal fluid sample. Diet to keep subjects' weight constant. Activity watch, using a device worn on the wrist to measure amount of movement, and an activity monitor worn at the waist to measure physical activity and caloric expenditure. Questionnaires about sleepiness, symptoms, food intake, exercise and mood. 24-hour urine collection and 24-hour blood draw to measure hormones. Glucose tolerance test. The subject drinks a sugar solution and blood samples are collected through a catheter before drinking the solution and 30 minutes, 1, 2 and 3 hours after drinking it. Startle reflex test. Subjects hear a loud noise through headphones and are asked to look at pictures. Sleep study to evaluate sleep-related breathing disturbances and record information about sleep stages. Indirect calorimetry test to measure how fast the body uses calories. A plastic canopy is placed over the face for several minutes to capture the air exhaled to analyze oxygen use. To measure the energy associated with meals, the same measurements are taken after the subject eats lunch. CT scan of the abdomen to see how much fat is deposited in the abdomen, and DEXA scan of the whole body to see the percentage of fat and muscle. Plethysmography. Participants sit in an enclosed chamber while the mass and volume of the body are measured by changes in air pressure. Neuropsychological testing to assess thought processes. Continuous 24-hour heart rate measurement. Metabolic chamber. Subjects spend 24 hours in a small room to measure the amount of oxygen inhaled and carbon dioxide exhaled. Walking/running test to assess level of physical conditioning. Dexamethasone CRH (corticotropin-releasing hormone) suppression test and CRH stimulation test. Subjects receive eight doses of 0.5 mg dexamethasone every 6 hours for a day and a half. After the last dose, two blood samples are drawn, then a dose of CRH is injected, and then six more blood samples are drawn over the next 3 hours. TRH (thyrotropin-releasing hormone) stimulation test. Subjects are given TRH through a vein, and several blood samples are then drawn over the next 3 hours. Doubly labeled water test. Subjects drink a dose of "heavy" water. Urine samples are collected at 2, 3 and 5 hours after drinking and again for two 4-hour collections a week later.