Obstructive Sleep Apnea Clinical Trials

This is a randomized controlled trial (RCT) of 4 weeks of study supplement N-acetylcysteine (NAC) versus placebo in persons with significant obstructive sleep apnea (OSA) who are receiving positive airway pressure therapy (PAP), the standard of care therapy. The purpose of the study is to determine if NAC is associated with sex-specific changes in overnight oxidative stress, inflammation, as well as endothelial dysfunction in persons with OSA. Read Less

Patients with chronic pain who use opioids appear to be at increased risk for breathing issues during sleep, termed sleep disordered breathing (SDB). Treatment of SDB often consists of use of a device during sleep that provides continuous positive airway pressure (CPAP) via a mask interface. However, this device is not effective or tolerated in all individuals. The goal of this study is to examine whether a medication called acetazolamide can improve SDB, as an alternative to CPAP treatment. The investigators will measure the improvement in SDB, as well as any change in symptoms, during a 1 week treatment with acetazolamide compared with 1 week of placebo (sugar pill). This study will help to provide data for longer term studies of treatment for SDB in patients who use opioids. Read Less

The purpose of this study is to assess whether oxygen supplementation during sleep improves working memory and other clinical and patient-reported outcomes among children who have Down Syndrome (DS) with moderate to severe Obstructive Sleep Apnea (OSA). Read Less

Background: Periodic fever, aphthous stomatitis, pharyngitis, and cervical adenitis (PFAPA) is the most common periodic fever syndrome of childhood. Symptoms can include swelling of the glands in the throat, mouth ulcers, and tonsillitis. Removal of the tonsils can stop the periodic flareups. But researchers do not know how PFAPA develops. In this natural history study, researchers will collect specimens and data from people with PFAPA to see what they might have in common. Objective: To collect blood and other specimens from people with PFAPA to learn more about the illness. Eligibility: People aged 1 month or older with symptoms of PFAPA or another tonsil disorder. Design: Participants will be screened. Their medical records will be reviewed. Researchers will ask about a family history of PFAPA. The following specimens may be collected: Blood. Blood will be drawn either from a needle inserted into a vein or from a prick in the finger or heel. Mucus and cells. A stick with soft padding on the tip may be rubbed inside the nostrils or mouth. Stool. Saliva. Tissue samples may be taken if participants are having surgery to remove the tonsils or adenoids. Participants having surgery may also have a nasopharyngeal wash; salt water will be squirted into the back of the throat and then sucked back out with a syringe. Most participants will provide specimens only once. They can do this in person at the clinic; they can also have their local health providers send specimens to the researchers. Some participants may have optional follow-up visits over 10 years. Read Less

This is a safety and efficacy trial for a Slow Wave, Inc. UASD oral appliance for the treatment of Obstructive Sleep Apnea. This trial will recruit 60-80 participants through our IRB partner. Each participant will take pre-trial and post trail sleep studies and be measured before, throughout and after the trial for Apnea-Hypopnea Index (AHI), Oxygen Desaturation Index (ODI), pulse rate to determine level of sleep improvement while wearing the device. Safety will also be measured through survey, dental exams and adverse events monitoring. Patients will wear an O2 monitoring ring throughout the study and upload results daily. Primary Objectives will evaluate AHI and ODI between sleep studies. Secondary outcomes will compare the daily ring data to these two sleep studies to evaluate changes over time. Patients will have the opportunity to complete daily diaries on their sleep experiences. Read Less

Major progress has been made in the area of cardiovascular disease, but we believe that further progress will involve mechanistically addressing underlying respiratory causes including chronic obstructive pulmonary disease (COPD) and obstructive sleep apnea (OSA). The most common cause of death in COPD is cardiovascular, although mechanisms are unknown. OSA has been associated with major neurocognitive and cardiovascular sequelae, the latter likely a function of autonomic nervous system abnormalities, oxidative stress, inflammation, and other pathways. Recent data suggest that individuals with OVS die preferentially of cardiovascular disease compared to OSA or COPD alone, although mechanisms are again unclear. The combination of OSA and COPD may lead to profound hypoxemia. Individuals with COPD can develop pulmonary hypertension via disturbances in gas exchange and parenchymal injury leading to loss of pulmonary vasculature. OSA has been associated with mild to moderate pulmonary hypertension, but the situation may be worse if combined with parenchymal lung disease. The biological response to sustained hypoxemia has been carefully studied as has the topic of intermittent hypoxemia; however, to our knowledge, very little research has occurred regarding the combination of sustained plus intermittent hypoxia as seen in OVS. For example, we do not really know whether individuals with OVS develop coronary disease, right or left heart failure, dysrhythmias or some combination of abnormalities predisposing them to cardiovascular death. Thus, design of interventional studies is challenging as causal pathways are poorly understood despite our considerable preliminary data addressing these issues. The purpose of this study is to examine vascular mechanisms in individuals with COPD/OSA overlap syndrome (OVS) compared with matched individuals with obstructive sleep apnea (OSA) alone or chronic obstructive pulmonary disease (COPD) alone and to perform a phase II pilot mechanistic clinical trial in OVS to examine the effect size of nocturnal bi-level positive airway pressure (PAP) vs. nocturnal oxygen therapy in cardiovascular outcomes. Read Less

To evaluate the safety and effectiveness of the Automatic Expiratory Positive Airway Pressure (Auto-EPAP) feature versus manual expiratory positive airway pressure (EPAP) in the Vivo 45 LS Ventilator. Read Less

The proposed study is a randomized controlled trial among an anicipated 180 participants with acute ischemic stroke and mod/severe OSA diagnosed by ambulatory polysomnography (PSG) comparing PAP treatment with usual care concerning the primary outcome of functional recovery. Read Less

This clinical research study will investigate the effects of respiratory strength training on blood pressure and cardiovascular health in adults who are 50 years of age and older and have been diagnosed with moderate or severe obstructive sleep apnea. Read Less

The CDC describes Post-acute sequelae of SARS-COV-2 infection (PASC) for the wide range of physical and mental health consequences experienced by some patients. These sequelae may be present four or more weeks after SARS-COV-2 infection, including patients who had initial mild or asymptomatic acute infection. However, there is complete absence of data whether chronic sleep changes due to COVID-19 infection may influence these physical and mental health consequences. While fatigue is one of the common post-COVID conditions, there are no systematic examinations of sleep disturbances in COVID-19 survivors. This will be a pilot observational retrospective and prospective cohort study, to systematically assess if sleep disturbances and severity of sleep apnea comprise a modifiable facet of PASC as well as the short-term and longer-term effects of COVID-19 infection itself on sleep, cognitive function, exercise capacity and lung function. Read Less

This research aims to develop a better understanding and clinical knowledge of the effects of a plant based diet on severity and daytime sleepiness in Obstructive Sleep Apnea. Read Less

This research study is designed to learn, first, whether two anesthetics have different effects on collapse seen within the upper airway during sleep endoscopy. A second purpose is to learn whether collapse at several levels of the upper airway is associated with obstructive sleep apnea that persists after adenotonsillectomy, the surgery that removes the tonsils and adenoids. Read Less