NCT00487929

Oxidative Stress and Cardiovascular Morbidity in Sleep Apnea-Hypopnea Syndrome (SAHS)

Phase 4 Study of the Relationship Between the Oxidative Stress and the Development of Cardiovascular Complications in the Sleep Apnea-hypopnea Syndrome (SAHS). Effect of the Treatment With CPAP

• Status: Completed
• Phase: Phase 4
• Study type: Interventional
• Enrollment: 100 (actual)
• Sponsor: Hospital Universitario La Paz · Academic / Other
• Sex: All
• Age: 18 Years – 75 Years
• Healthy volunteers: Accepted

Summary

The purpose of this study is to compare the levels of 8-isoprostane and other oxidative stress biomarkers in plasma and condensed exhaled air between patients with SAHS and cardiovascular complications, patients with SAHS without cardiovascular complications and control subjects. To evaluate the effect of three months of treatment with CPAP on the oxidative stress biomarkers.

Detailed description

Aim: To compare the levels of 8-isoprostane and other oxidative stress biomarkers in plasma and condensed exhaled air between patients with SAHS and cardiovascular complications, patients with SAHS without cardiovascular complications and control subjects. To evaluate the effect of three months of treatment with CPAP on the oxidative stress biomarkers. Design: randomized, double blind, of parallel groups and controlled with placebo study. Study subjects: 53 patients with SAHS (23 with cardiovascular complications and 30 without cardiovascular complications), 23 patients with cardiovascular diseases without SAHS and 23 control subjects. Interventions: Three months of treatment with therapeutic CPAP or with sham CPAP (placebo). Determinations: clinical (cardiovascular morbidity) and anthropometric data. Fat free corporal mass, echocardiography, spirometry, ambulatory monitoring of the arterial pressure, endothelial reactivity. Oxidative stress biomarkers (8-isoprostane, homocysteine, HIF-1, NFkB, AP-1, VEGF, ET-1, TNF-alpha, IL-1, IL-6, ICAM-1, VCAM-1, nitrates and nitrites) in plasma and condensed exhaled air.Peripheral sensitivity to hypoxia. Urinary excretion of catecholamines.

Conditions

• Sleep Apnea
• Cardiovascular Diseases

Interventions

Type	Name	Description
DEVICE	nasal CPAP	Nocturnal
DEVICE	Sham CPAP	Nocturnal

Timeline

• Start date: 2007-06-01
• Primary completion: 2012-04-01
• Completion: 2012-10-01
• First posted: 2007-06-19
• Last updated: 2013-04-02

Locations

1 site across 1 country: Spain