Sleep-wake disorder

This study looked at whether fremanezumab (Ajovy), an FDA-approved monthly injection for migraine prevention, could also improve sleep in people with migraines. Researchers planned to track 22 participants over 4 months, comparing their migraine days and sleep quality before and …

This small pilot study tested whether a special oral appliance (like a mouthguard) could reduce episodes of atrial fibrillation, a common heart rhythm problem. Only 3 people participated, and the study was ended early. The device is already used for snoring and sleep apnea, but i…

This study looked at whether using a positive airway pressure (PAP) machine at night can reduce the return of atrial fibrillation (an irregular heartbeat) in people who also have obstructive sleep apnea. About 129 participants with both conditions were assigned to receive either …

This study tested whether lemborexant, a sleep medication, can help people who work night shifts get better daytime sleep without feeling drowsy later. Five healthy adults who had not done shift work in the past year took either lemborexant or a placebo before daytime sleep in a …

This study compared a new prototype nasal mask (Whitsundays) to a standard mask (AirFit N30i) in 30 adults with obstructive sleep apnea. Participants used each mask for 7 nights at home. The goal was to see which mask sealed better, was more comfortable, and easier to use. The st…

This early-stage study tested an experimental drug called MK-6552 in 9 people with narcolepsy type 1, a condition that causes sudden sleep attacks. The goal was to see if the drug was safe and could help patients stay awake during the day. The trial was stopped early, so results …

This study compared two types of non-invasive breathing support for people with sudden breathing failure who are obese or have sleep apnea. One machine automatically adjusts pressure and volume, while the other uses a fixed pressure setting. The goal was to see which method clear…

This study tested a device that delivers high-flow oxygen through the nose during throat surgery. The goal was to keep patients' oxygen levels safe without using a breathing tube. The trial included 29 adults in two French hospitals. The device was considered safe if blood oxygen…

This early-stage trial tested an experimental drug called JZP441 in just 6 adults with narcolepsy type 1, a condition that causes sudden daytime sleepiness. The goal was to see if the drug could help people stay awake longer, as measured by a standard sleep test. However, the stu…

This pilot study tested whether the sleep drug tasimelteon (Hetlioz) could reduce dream-enactment events in people with REM behavior disorder. Twenty participants took a nightly 20 mg capsule and tracked their symptoms in a daily diary. The study was terminated early, so results …

This study tested whether the drug solriamfetol (Sunosi) can reduce excessive sleepiness in people who start work between 3 and 6 AM. The trial planned to enroll 84 participants but was terminated early. Researchers measured sleepiness using a test that tracks how long people can…

This study tested whether pramipexole (Mirapex), a drug for restless legs syndrome, could also reduce symptoms of opioid withdrawal in people with opioid use disorder. The trial planned to enroll 75 adults but was terminated early. Researchers measured changes in restless legs se…

This study tested a single dose of danavorexton in 41 people with moderate to severe sleep apnea who were having abdominal surgery. The goal was to see if the drug could help them breathe steadily in the recovery room. The trial was terminated early, so results are incomplete.

This study aimed to see if a sedative called dexmedetomidine produces sleep more like natural sleep than another sedative, propofol. Researchers planned to measure brain activity in 3 healthy volunteers during drug-induced and natural sleep. The trial was terminated early, so onl…

This study looked at whether sleep disorders like insomnia and nightmares are connected to suicide attempts. Researchers compared people who had just attempted suicide with those who had suicidal thoughts but no attempt. The goal was to see if sleep problems might be a trigger. T…

This study followed 167 adults with mental health issues like anxiety, depression, or sleep problems who visited their primary care doctor. Researchers used health conversations and a blood test to track lifestyle changes and heart disease risks over up to 20 years. The goal was …

This study looked at whether using a CPAP machine at night could reduce abnormal acid reflux and lung inflammation in people with idiopathic pulmonary fibrosis (IPF) who also have sleep apnea. Only 7 people enrolled before the study was terminated early. The goal was to measure c…

This study tested a new wireless night guard with built-in pressure sensors to measure how hard people with sleep bruxism (teeth grinding) clench their jaws at night. Only 2 participants were enrolled before the study ended early. The goal was to see if the device could be made s…

This study aimed to find early signs of heart and blood vessel damage in people with obstructive sleep apnea, before serious symptoms appear. Researchers planned to follow 133 patients and check if CPAP treatment could reverse these early changes. The study was terminated early, …

This study aimed to see if using a CPAP machine (a device that helps breathing during sleep) reduces inflammation in fat tissue for people with sleep apnea, both obese and non-obese. Researchers planned to compare CPAP treatment to a placebo in 40 men. The study was stopped early…

This study contacted 321 people with sleep apnea who were part of earlier research to see what health problems they had over time. Researchers asked about heart issues, diabetes, cancer, and deaths. They also looked at whether using a CPAP machine affected these outcomes. The goa…

This study involved 65 adults with obstructive sleep apnea who had been using CPAP therapy for at least 6 months. Participants stopped using CPAP for 2 weeks so researchers could measure changes in blood vessel function and nerve control of the heart. The goal was to see if a spe…