Clinical Research Directory

Effect of Eszopiclone on Adherence to CPAP and Severity of Insomnia in Patients With COMISA

The comorbidity between obstructive sleep apnea (OSA) and insomnia (COMISA) is common, and associated with poorer sleep quality. CPAP adherence among COMISA patients is worst than among those with OSA only. The investigators will compare the effect of Eszopiclone 3mg or placebo for 14 days on adherence to CPAP after 30 days and after 6 months.

Positive Airway Pressure (PAP) for Children With Down Syndrome (DS) and Obstructive Sleep Apnea Syndrome (OSAS)

Determine the efficacy of family-informed intervention (INT) vs standard clinical care over a period of twelve months in children with obstructive sleep apnea and Down Syndrome.

OSA-18 in Children With Mild Obstructive Sleep Apnea: Can it be a Helpful Decision Making Tool?

The concept is a novel research idea that incorporates the potential impact of patient quality of life (QOL) on decision-making for treatment of mild obstructive sleep apnea (OSA). Our hypothesis is that in children with mild OSA there is significant conflict with parental decision-making; in the absence of significant sleep apnea, there is limited research regarding comparative efficacy of various treatment options. The impact of a QOL questionnaire can be a significant deciding factor and may help guide management decisions in such situations.

Enhancing PAP Adherence Among Spanish-speaking Hispanic Adults With OSA

This study seeks to enhance long-term positive airway pressure (PAP) adherence among Spanish-speaking Hispanic adults, a group with known PAP outcomes disparities. This study will assess the feasibility of a linguistically and culturally adapted tele-management intervention (Automated Management, AM) for Spanish-speaking Hispanic adults with OSA.

Neurocognitive and Health Impact of Sleep Apnea in Elderly Veterans With Comorbid COPD

Cognitive dysfunction in the aging Veteran population is a growing health concern in the Veterans Health System. It is not known whether OSA coexisting with COPD will enhance the risk for cognitive dysfunction. The investigators sought to investigate whether these two highly prevalent diseases, that often co-exist as the 'Overlap Syndrome', combine to enhance cognitive impairment in the elderly Veteran population. Thus, the investigators will study whether elderly patients with Overlap syndrome have increased cognitive deficits compared with OSA or COPD alone. Additionally, treatment of OSA with positive airway pressure (PAP) has been shown to improve neurocognitive function in moderate-to-severe OSA while cognitive decline in COPD may be reversible through treatment with long-term oxygen therapy. The investigators will also study whether treatment with positive airway pressure (PAP) and supplemental oxygen vs PAP alone will improve cognitive function and improve quality of life of elderly Veterans.

Maridebart Cafraglutide Versus Placebo in Adult Participants With Obstructive Sleep Apnea Not on Positive Airway Pressure (PAP) Therapy

This Phase 3 clinical trial is designed to evaluate the efficacy and safety of maridebart cafraglutide compared to placebo over a 52-week period in adults with obstructive sleep apnea (OSA) who are not on PAP therapy and are living with overweight or obesity.

Maridebart Cafraglutide Versus Placebo in Adult Participants With Obstructive Sleep Apnea on Positive Airway Pressure Therapy

This Phase 3 clinical trial is designed to evaluate the efficacy and safety of maridebart cafraglutide compared to placebo over a 52-week period in adults with obstructive sleep apnea (OSA) who are receiving positive airway pressure (PAP) therapy and are living with overweight or obesity.

Inspire Singapore Study

Prospective, multicenter, open-label study designed to confirm device performance of Inspire system in Singapore.

A Study of Retatrutide (LY3437943) in Participants Who Have Obesity or Overweight

The purpose of this study is to evaluate the efficacy and safety of retatrutide in participants who have obesity or overweight (J1I-MC-GZBJ master protocol) including subsets of participants who have knee osteoarthritis (OA) (J1I-MC-GOA1) or who have obstructive sleep apnea (OSA) (J1I-MC-GSA1). This study will last about 89 weeks and will include up to 24 visits. Addendum (2) is optional and available to approximately 500 participants to continue treatment with retatrutide for up to an additional 24 weeks.

Baveno Classification Versus Polysomnography in Obstructive Sleep Apnea

Obstructive sleep apnea is a common disorder associated with significant cardiovascular and metabolic risks. Polysomnography is considered the gold standard for diagnosis and severity assessment; however, it may not fully reflect symptom burden and comorbidity profiles. The Baveno classification has been proposed as a multidimensional clinical tool that integrates symptoms and comorbidities to guide treatment decisions. This retrospective study aims to evaluate the agreement between the Baveno classification and polysomnography results in patients with obstructive sleep apnea. The study includes adult patients who underwent overnight polysomnography between January 2016 and June 2024. Clinical data, including symptom burden and comorbid conditions, were collected from medical records and used to classify patients according to the Baveno system. The primary objective is to assess the concordance between the Baveno classification and polysomnography-based disease severity and treatment recommendations. Secondary analyses explore the distribution of disease severity across Baveno groups and the potential implications for clinical decision-making. The findings of this study may provide insight into the clinical utility of the Baveno classification as a complementary tool to polysomnography in the management of obstructive sleep apnea.

Dexmedetomidine Versus Propofol Sedation for Drug-Induced Sleep Endoscopy in Pediatric Obstructive Sleep Apnea

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.

Metabolomics of Obstructive Sleep Apnea

This is an R01 funded project that focuses on the utility of metabolomics as a biomarker for OSA. Aims 1 and 3 leverages banked samples previously collected from subjects with and without OSA at the University of Pennsylvania and University of Iceland. Aim 2 is a prospective study that will collect serum samples from OSA subjects at the University of Pennsylvania and the University of Iceland.

Dexamethasone Treatment for OSA in Children

This is a double-blinded clinical trial of children diagnosed with moderate to severe obstructive sleep apnea (OSA) on a baseline polysomnogram (PSG). Participants will receive a 3-day course of dexamethasone, an oral steroid, or placebo control and undergo two PSGs to assess the efficacy of dexamethasone, as a treatment to manage the severity and symptoms in children with moderate to severe OSA.

Effect of Sleep Apnea on Pain After Dental Treatment

This observational study aims to investigate the effects of sleep quality and systemic health status on pain levels following endodontic treatment in adult patients. The primary goal is to determine how obstructive sleep apnea and common systemic conditions (diabetes and hypertension) influence postoperative dental pain. The key questions it aims to answer are: Does the severity of Obstructive Sleep Apnea (OSA) lead to higher postoperative pain scores after root canal treatment? How does the presence of systemic diseases, such as diabetes and hypertension, affect pain perception compared to healthy individuals and OSA patients? Comparison Groups: Researchers will compare outcomes across three distinct cohorts: OSA Group: Patients diagnosed with moderate-to-severe obstructive sleep apnea via polysomnography. Systemic Disease Group: Patients with diagnosed systemic conditions, specifically diabetes and hypertension. Control Group: Systemically healthy individuals without sleep disorders. Participants will: Undergo a polysomnography (PSG) evaluation to assess their sleep status. Receive routine, standard-of-care endodontic treatment. Record and report their pain intensity using the Visual Analog Scale (VAS) at specific intervals after the procedure.

A Mindfulness-Based Intervention to Improve CPAP

The main purpose of this study is to assess the effectiveness of a mindfulness-based intervention in improving CPAP use compared to online peer support

Prevalence and Impact of Obstructive Sleep Apnea in Multiple Sclerosis

This study will evaluate the influence of sleep apnea on clinical and radiological features of MS. Sleep apnea is associated with hypoxemia during sleep, which is likely detrimental to MS. Clinical data (MRI, lab results, medical history, labs, and sleep studies) of MS patients will be collected and analyzed. This will be done to study correlations between MRI, clinical data, lab studies and sleep studies. There is specific interest in the type of sleep apnea associated with MS, and whether MRI or clinical metrics of MS severity correlate with presence or absence of sleep apnea.

Is Obstructive Sleep Apnea Important in the Development of Alzheimer's Disease?

Obstructive sleep apnea (OSA) is common in older adults and has recently been implicated in pathogenesis of Alzheimer's disease (AD). Research has shown that sleep disruptions have caused memory impairment. Sleep apnea is a form of sleep disruption. We would like to examine how obstructive sleep apnea may contribute to the progression of Alzheimer's disease.

Exploring the Use of Phototherapy to Improve CPAP Compliance

Photobiomodulation (PBM) is a type of light therapy like lasers and LEDs. PBM was previously known by different terms like "low-level laser therapy" (LLLT) or "photobiostimulation." LLLT, despite its name, can also have effects beyond biomodulation, including thermal effects useful in medical imaging and therapy. PBM works by interacting with our biological systems, and its clinical benefits depend on factors like light wavelength, and energy output. PBM has various clinical applications, such as wound healing, pain management, and treatment in sports injuries. It's also used as an adjunct to surgery, reducing risks and improving outcomes in areas like wound healing and inflammation. In oral medicine, PBM is applied to conditions like oral aphthous ulcers and is well-recognized for its positive effects in treatment of oral inflammation for oncology patients. Recent studies indicate that PBM, when administered by trained professionals, can improve sleep quality and reduce snoring/SDB in adults. There's potential for its use in treating obstructive sleep apnea (OSA), showing effectiveness similar to dental sleep appliances but with fewer side effects. This effect seems to be from stabilization of the upper airway. Combining PBM with other therapies, like dental sleep appliances, has shown promise in enhancing effectiveness. However, whether the effect of PBM in stabilizing the upper airway to reduce snoring/SDB can be used in combination with continuous positive airway pressure (CPAP) to decrease CPAP pressures and improve patient compliance has not been explored.

Structured Testing and Treatment for Obstructive Sleep Apnea in Patients With Atrial Fibrillation

The main goal of this prospective pre-post implementation study is to investigate how a structured testing and treatment program for obstructive sleep apnea using the NOX T3s device and a Fitbit smartwatch with the FibriCheck algorithm impacts the proportion of atrial fibrillation (AF) in an AF population. Participants will wear the NOX T3s respiratory polygraphy device for one night at home. In case of a positive obstructive sleep apnea diagnosis, patients will be referred to the sleep clinic for a polysomnography examination. Patients positively diagnosed with polygraph will be monitored semi-continuously with the Fitbit smartwatch for three months. After the polysomnography examination, the positively diagnosed patients will be monitored semi-continuously for another three months after initiation of treatment (mostly continuous positive airway pressure (CPAP) treatment). Additionally, patients will be administered satisfaction, symptom burden and alcohol consumption questionnaires twice: right after the polysomnography examination and after the 3-month treatment.

Patient-centered and Neurocognitive Outcomes With Acetazolamide for Sleep Apnea

Obstructive sleep apnea (OSA) is a severe type of snoring causing people to choke in their sleep. It affects millions of Americans, causing many health problems. For example, patients with OSA often feel very sleepy and are at risk of falling asleep while driving. OSA also causes elevated blood pressure, memory problems and can severely affect quality of life. Patients with OSA are often treated with a face-mask that helps them breath at night but can be difficult to tolerate. In fact, about half the patients eventually stop using this mask. Because there are few other treatments (and no drug therapy), many OSA patients are still untreated. Acetazolamide (a mild diuretic drug) has been used for over 50 years to treat many different conditions and is well tolerated. Recent data suggest, that acetazolamide may help OSA patients to not choke in their sleep and lower their blood pressure. Further, its low cost (66¢/day) and once-daily dosing may be attractive for OSA patients unable or unwilling to wear a mask each night. But previous studies had many limitations such as studying acetazolamide for only a few days and not capturing important outcomes. The goal of this study is to test if acetazolamide can improve sleep apnea, neurocognitive function and quality of life in adults with OSA, and to assess how it does that. Thus, the investigators will treat 60 OSA patients with acetazolamide or placebo for 4 weeks each. The order in which participants receive the drug or placebo will be randomized. At the end of each 4 week period the investigators will assess OSA severity, neurocognitive function and quality of life. Thus, this study will help assess acetazolamide's potential value for OSA treatment, and may also help to identify patients who are most likely to respond to acetazolamide. Ultimately, this work promises a drug therapy option for millions of OSA patients who are unable to tolerate current treatments

Continuous Positive Airway Pressure, Arousability and Links to Mechanisms in Obstructive Sleep Apnea

The study design is a randomized, controlled clinical trial to test the hypothesis that arousal threshold (ArTH) will affect how individuals with obstructive sleep apnea (OSA, Apnea-Hypopnea Index (AHI) of 10/hour of higher) respond to CPAP therapy regarding adherence and cognitive function (executive function). Investigators hypothesize that raising ArTH with eszopiclone will improve adherence to CPAP and neurocognitive function with CPAP therapy. Investigators also hypothesize that a lower baseline ArTH is associated with worse CPAP adherence, while a higher baseline ArTH is associated with improved neurocognitive outcomes with CPAP therapy.

Increasing the Use of an Anti-snoring Mouth Guard (Mandibular Advancement Appliance) to Prevent Upper Airway Collapse During Sleep in Patients With Obstructive Sleep Apnoea.

Obstructive Sleep Apnoea (OSA) is a sleep-related breathing disorder that is characterized by the repeated collapse of the upper airway during sleep, resulting in sleep deprivation. Mandibular Advancement Appliances (MAA) or Oral Appliances (OA) is prescribed for the patients with OSA and they have been shown to be effective. However, they rely entirely on the patient's acceptance and use. The aim of this study is to assess whether interventions- additional support approaches, will help patients use their MAA more as compared to those who receive routine care. The investigators also will try and identify factors that help us to understand why some patients choose to wear the MAA more than others. Adults (≥40 years) with a confirmed diagnosis of OSA (apnoea-hypopnoea index \>5) and referred for MAA therapy will be included in this study. It is a multicentre study comprised of recruiting patients from secondary care. Patients will be provided with information in relation to the study and written informed consent obtained at their subsequent appointment for placement of MAA. Patients will be randomly assigned to Intervention Care (IC) and Standardised care (SC). Patients will also be provided with a sleep diary to subjectively record their hours of sleep and usage of MAA and an objective adherence record from the micro-sensor included in their MAA design. Data indicating adherence will be collected and evaluated, both subjectively at 3- (T2) and 6-months (T3) and objectively by downloading the data stored within a micro-sensor placed in the MAA device. At the end of the follow-up, the investigators also plan to undertake a qualitative one-to-one interview with patients compliant (users) and non-compliant (non-users) to identify their views of what helps and/or prevents their adherence.

Post-Operative Steroids After Sleep Surgery

The primary objective of this randomized, placebo-controlled, double-blind study will be to determine if postoperative steroids significantly improve subjects' pain compared to a placebo after undergoing sleep surgery. The secondary objective is to determine if this same course of steroids improves how quickly subjects can tolerate a regular diet after surgery. Further, another secondary objective is to see if this will decrease a patient's postoperative narcotic usage. Investigators also will assess sleepiness, nasal breathing, and eustachian tube dysfunction (ETD) after the procedure using the validated measures Preoperative Epworth Sleepiness Scale (ESS), Nasal Obstruction Symptom Evaluation Survey (NOSE), and Eustachian Tube Dysfunction Questionnaire (ETDQ-7) with an objective to see if these improve more or quicker in patients who receive postoperative steroids. Investigators hypothesize that postoperative steroids will significantly decrease a patient's pain quicker in their recovery, allow them to tolerate more oral intake early in their recovery, allow them to tolerate a regular diet earlier in their recovery, and reduce their postoperative narcotic usage. Investigators hypothesize that postoperative steroids will also improve patients' ESS, NOSE, and ETD scores postoperatively, but Investigators do not believe postoperative steroids will affect the oropharyngeal bleeding rate of patients. This study will provide pilot data to determine if postoperative steroids and what dosage should be part of a standardized postoperative regimen in patients undergoing sleep surgery.

Multi-morbidity Screening in People With Type 2 Diabetes and Pre Diabetes

People with type 2 diabetes are at risk of complications linked with high blood sugars and these are monitored for in healthcare appointments. However, people with type 2 diabetes commonly suffer with additional health conditions that can affect the liver, heart and their breathing while sleeping. These conditions are thought to be caused by a similar underlying process that causes type 2 diabetes, as a result they are very common in people type 2 diabetes. Despite this they are not part of the routine health check for these people. Worryingly, current research suggests that the risk for developing these health problems, and direct complications of type 2 diabetes, can start at blood sugar levels below the threshold of type 2 diabetes. In a group of people said to have prediabetes. These people do not currently undergo annual healthcare appointments to monitor for these health complications or other linked health conditions. This study aims to pilot a new style of clinic to address these issues. The investigators will perform a multi-morbidity assessment, where they will look for several different health problems at the same time. The investigators will be looking at health problems linked with high blood sugars, this will include problems with the liver, heart, nerves, eyes, and participants breathing overnight. They have developed a clinic visit which uses questionnaires, simple examination techniques and modern devices to try and identify these health problems. An important part of healthcare is the burden it places on people with health problems, with this in mind the investigators will be giving the people involved in their study a voice to try and direct future research and healthcare, the investigators will ask them to provide feedback on their experience in taking part in the study and what their thoughts are in undergoing a longer but more comprehensive health appointment.