CPAP clinical trials at University of California Health
10 in progress, 8 open to eligible people
Acetazolamide for Obstructive Sleep Apnea to Improve Heart Health
open to eligible people ages 18-50
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 increasing the risk for heart attacks and strokes. 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. Of note, especially young adults (i.e. 18 to 50 years old) benefit from treating their OSA, but they are also less likely to use the mask. 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. Especially young adults with OSA are likely to respond well to this drug. Further, its low cost (66¢/day) and once- daily dosing may be particularly attractive for young OSA patients unable or unwilling to wear a mask each night. But previous studies had many limitations and did not focus on young adults. The goal of this study is to test if acetazolamide can improve sleep apnea and cardiovascular health in young adults with OSA (18-50 years old), and how it does that. Thus, we will treat 46 young OSA patients with acetazolamide or placebo for 2 weeks each. The order in which participants receive the drug or placebo will be randomized. At the end of each 2 week period we will assess OSA severity and cardiovascular health. 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 (including select individuals >50 years of age). Ultimately, this work promises a drug therapy option for millions of OSA patients who are unable to tolerate current treatments.
at UCSD
Continuous Positive Airway Pressure (CPAP) for Sleep Apnea in Pregnancy
open to eligible females ages 18 years and up
A randomized controlled trial of 1,500 women to assess whether treatment of obstructive sleep apnea with continuous positive airway pressure (CPAP) in pregnancy will result in a reduction in the rate of hypertensive disorders of pregnancy.
at UCSF
Do Endotypes Predict Response and Sequelae in OSA Patients
open to eligible people ages 21-65
This study will investigate why some people have Obstructive Sleep Apnea (OSA) and how the underlying cause may relate to OSA manifestations (including sleepiness and high blood pressure) and response to different therapeutic approaches (ie CPAP, eszopiclone, and supplemental oxygen). Understanding why someone has OSA could affect how best to treat that individual, but may also have an impact on what problems the disease might cause.
at UCSD
Endotype-Targeted Therapy to Rescue OSA Patients Struggling with CPAP Adherence (TOP-CPAP)
open to eligible people ages 21-65
More than 10% of the US population have obstructive sleep apnea (OSA). Standard of care is therapy with CPAP (continuous positive airway pressure) which virtually eliminates OSA. However, most patients use CPAP only for part of the night (4-5hours) and about 50% patients discontinue CPAP long-term. Alternative therapies are limited, thus many OSA patients remain at risk of OSA sequelae (e.g. sleepiness, memory issues, high blood pressure, etc.). Importantly, different patients get OSA for different reasons, and recent data show that some of the underlying causes of OSA ("endotypes") such as having a low arousal threshold (i.e. waking up easily) are associated with lower CPAP adherence. Using a randomized controlled trial design, this will be the first study using a targeted intervention to manipulate the underlying OSA causes (i.e., giving a safe hypnotic to patients with OSA to increase the arousal threshold) to test the hypothesis that endotype-targeted therapy increases CPAP-adherence in patients who have low but continued CPAP usage. Ultimately, this strategy may improve the care and outcomes of millions of undertreated OSA patients.
at UCSD
Flow and Grow - The Ideal Time to Wean CPAP Off In Extremely Low Birth Weight Infants
open to all eligible people
Preterm neonates born at less than 30 weeks' gestation are commonly maintained on invasive or non-invasive respiratory support to facilitate gas exchange. While non-invasive respiratory support (NIS) can be gradually reduced over time as the infant grows, most weaning strategies often lead to weaning failure. This failure is evidenced by an increase in significant events such as apneas, desaturations, and/or bradycardias, increased work of breathing, or an inability to oxygenate or ventilate, resulting in escalated respiratory support. Although the optimal approach to weaning NIS remains uncertain, neonatal units that delay Continuous Positive Airway Pressure (CPAP) weaning until 32-34 weeks corrected gestational age exhibit lower rates of chronic lung disease. Therefore, the investigators aim to compare the duration on respiratory support and oxygen exposure in infants born at less than 30 weeks' gestational age who undergo a structured weaning protocol that includes remaining on CPAP until at least 32-34 weeks corrected gestational age (CGA). The hypothesis posits that preterm infants following a structured weaning protocol, including maintaining CPAP until a specific gestational age, will demonstrate lower rates of weaning failure off CPAP (defined as requiring more support and/or experiencing increased stimulation events 72 hours after CPAP weaning) than those managed according to the medical team's discretion.
at UCSD
OSA PAP Treatment for Veterans With SUD and PTSD on Residential Treatment Unit
open to eligible people ages 18 years and up
Substance use disorder (SUD) and posttraumatic stress disorder (PTSD) frequently co-occur and having both disorders is associated with greater psychological and functional impairment than having either disorder alone. This is especially true in residential settings where both disorders are more severe than outpatient settings. Obstructive sleep apnea (OSA) is highly comorbid with both disorders and untreated OSA is associated with worse functional impairment across multiple domains, worse quality of life, worse PTSD, higher suicidal ideation, and higher substance use and relapse rates. Treating OSA with evidence-based positive airway pressure (PAP) in Veterans with SUD/PTSD on a residential unit is a logical way to maximize treatment adherence and treatment outcomes. This study compares OSA treatment while on a SUD/PTSD residential unit to a waitlist control group. The investigators hypothesize that treating OSA on the residential unit, compared to the waitlist control, will have better functional, SUD, and PTSD outcomes.
at UCSD
Restoring Metabolic and Reproductive Health With Sleep in PCOS Study, CPAP Trial
open to eligible females ages 18-40
In this study, the researchers are trying to learn more about the relationship between Polycystic Ovary Syndrome and Obstructive Sleep Apnea (OSA). Obstructive Sleep Apnea is a sleep-related breathing disorder that involves a decrease or complete stop in airflow. The purpose of this study is to find out why some people with obstructive sleep apnea have higher levels of insulin resistance, and the investigators will study the role of hypoxia (low levels of oxygen in the blood at night) in insulin resistance and see if insulin resistance improves during your treatment with CPAP.
at UCSF
Sleep for Stroke Management and Recovery Trial
open to eligible people ages 18 years and up
The purpose of this study is to determine whether treatment of obstructive sleep apnea (OSA) with positive airway pressure starting shortly after acute ischemic stroke (1) reduces recurrent stroke, acute coronary syndrome, and all-cause mortality 6 months after the event, and (2) improves stroke outcomes at 3 months in patients who experienced an ischemic stroke.
at UC Davis UC Irvine UCLA UCSD UCSF
Early Caffeine and LISA Compared to Caffeine and CPAP in Preterm Infants
Sorry, in progress, not accepting new patients
This study is being conducted to determine whether prophylactic administration of surfactant by the Less Invasive Surfactant Administration (LISA) method reduces the need for mechanical ventilation in the first 72 hours of life when compared to early Continuous Positive Airway Pressure (CPAP) alone.
at UC Irvine
Tissue-specific Insulin Resistance in Obstructive Sleep Apnea: Role of Hypoxia
Sorry, in progress, not accepting new patients
Obstructive sleep apnea (OSA) is a common condition associated with significant adverse health outcomes. Our overarching hypothesis is that patients with OSA and hypoxia (H-OSA) have greater degrees of insulin resistance in both liver and adipose tissue when compared to those without hypoxia (NH-OSA) thus leading to increased risk for the development of diabetes in the former group.
at UCSF
Our lead scientists for CPAP research studies include Sandra Leibel, MD Heather Huddleston, MD Christopher Schmickl, MD, PhD Atul Malhotra Mary Norton, MD Alon Avidan, MD, MPH Peter Colvonen, PhD.
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