Mechanisms of Endothelial Cell Dysfunction in Sleep Apnea

Status Completed

Clinical Trial Summary

Sleep apnea is a common sleep disorder characterized by temporary stops in breathing during sleep and has been associated with the development of cardiovascular disease. This research will investigate one potential mechanism leading to the development of cardiovascular disorder, specifically, the blockage of blood vessels called "vascular occlusion", in subjects with sleep apnea. A group of healthy controls will be used for comparison. All subjects will undergo clinical evaluation followed by an overnight sleep study and a morning blood draw. Subjects with sleep apnea will be treated according to standard clinical management and followed under the research protocol for one month. At the end of one month, a repeat blood draw will be performed on the sleep apnea subjects for comparative analysis. If a control subject is found to have any abnormality during this research study, he or she will be referred for further clinical evaluation.

Clinical Trial Description

The importance of this project is to investigate mechanisms of vascular disease in sleep apnea and determine pathways for intervention, aiming to prevent the development of cardiovascular disease in these individuals.

This proposed research aims to evaluate both NTPDase activity in lymphocytes and levels of circulating endothelial cells (CECs) in patients with intermittent hypoxemia (IH) due to obstructive sleep apnea (OSA) and healthy controls. This is an original approach to define mechanisms which underlie the high incidence of occlusive vascular events in patients with OSA. The evaluation of such pathophysiological mechanisms will lead to a better understanding of the pathways involved and the development of therapeutic strategies targeting the reduction or avoidance of endothelial injury with the ultimate goal of reducing morbidity and mortality associated with these pathologic events in sleep apnea. The standard of care will be used in this protocol, which involves the use of CPAP (continuous positive airway pressure) for treating sleep apnea. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT00859950
Study type	Interventional
Source	Weill Medical College of Cornell University
Contact
Status	Completed
Phase	N/A
Start date	April 2009
Completion date	August 2015

View Details

See also
Status	Clinical Trial	Phase
Recruiting	`NCT05857384` - Bioavailability, Bioequivalence and Tolerability of IHL-42X Compared to the Reference Drugs	Phase 1
Recruiting	`NCT04547543` - Follow-up of Apneic Patients by Visio-consultation	N/A
Recruiting	`NCT05371509` - Novel Myofunctional Water Bottle to Reduce OSA and Snoring Study	N/A
Completed	`NCT02515357` - Mediterranean Diet/Lifestyle Intervention in Obstructive Sleep Apnea	N/A
Completed	`NCT05582070` - Effect on Sleep of Surgical Treatment of Severe Nasal Obstruction	N/A
Active, not recruiting	`NCT03189173` - Combined Upper-airway and Breathing Control Therapies for Obstructive Sleep Apnea	Phase 2
Completed	`NCT04084899` - The Effect of CPAP on Lung Hyperinflation in Patients With OSA
Completed	`NCT03032029` - Registry on the Treatment of Central and Complex Sleep-Disordered Breathing With Adaptive Servo-Ventilation
Recruiting	`NCT04028011` - Clinical Evaluation of a Wearable Technology for the Diagnosis of Sleep Apnoea
Recruiting	`NCT06047353` - Community Health Advocates for Motivating PAP Use in Our Neighborhoods.	N/A
Completed	`NCT05253963` - Acute Effect of CPAP on Weight in Patients With Obstructive Sleep Apnea	N/A
Recruiting	`NCT06029959` - Stroke and CPAP Outcome Study 3	N/A
Recruiting	`NCT06150352` - Sleep Apnea, Neurocognitive Decline and Brain Imaging in Patients With Subjective or Mild Cognitive Impairment
Completed	`NCT03589417` - Postural Stability, Balance and Fall Risk in Patients With Obstructive Sleep Apnea
Recruiting	`NCT04335994` - ENhancing Outcomes in Cognitive Impairment Through Use of Home Sleep ApNea Testing	N/A
Withdrawn	`NCT04063436` - Evaluation of a New Nasal Pillows Mask for the Treatment of Obstructive Sleep Apnea	N/A
Recruiting	`NCT05385302` - Sociological Determinants of Positive Airway Pressure Adherence in OSA Patients
Recruiting	`NCT04572269` - Metabolomics of Obstructive Sleep Apnea
Not yet recruiting	`NCT06467682` - 12-week Tele-exercise Program in Patients With OSA	N/A
Withdrawn	`NCT04011358` - Retinal Vein Occlusion and Obstructive Sleep Apnea: A Case Control Study	N/A

Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.