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Spanish Cohort for the Study of the Effect of CPAP in Hypertension (CEPECTA)

Hypertension Clinical Trial

Official title:
Efficacy of the Treatment With Nasal Positive Continuous Airway Pressure to Reduce the Arterial Blood Pressure in Patients With Apneas-Hypopneas During the Sleep and Systemic Hypertension

Clinical Trial Summary

AIMS:To know the effects of the treatment with nasal positive continuous airway pressure (CPAP) on systemic blood pressure and the expression of biological mediators, in systemic hypertension of recent diagnostic, whose have an apnea-hypopnea index > 15.

METHODOLOGY: DESIGN: Prospective, multicenter, randomized study, of parallel groups and controlled with placebo, in patients diagnosed of systemic hypertension (SH) with an apnea-hypopnea index, by conventional polysomnography > 15. A total of 340 patients with recently diagnosed of SH and without any pharmacological treatment will be studied. All patients will be randomized to receive, alternatively, CPAP treatment with optimal pressure titled with a proved system, or Sham-CPAP for 12 weeks.

MEASUREMENTS: A) Conventional polysomnography at baseline: B) Clinic: sleepiness (ATS, Basic Nordic Sleep Questionnaire and Epworth), quality of life (EuroQol); C) 24 hour blood pressure monitoring; D) Expression of biological mediators in blood: general determinations, endothelial, inflammatory, lipid, renin-angiotensin-aldosterone and adrenergic mediators.

ANALYSIS. Baseline measurements of all the variables will be compared with the situation at six and twelve weeks. We will use the chi square test and the Fisher´s exact test (categorical variables), the t test for continous variables and repeated measures ANCOVA for the primary objective. The analyses will be done under the criterion of intention to treat and for protocol. The variables will be controlled by the compliance with the CPAP..

Clinical Trial Description

n/a

Study Design

Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double-Blind, Primary Purpose: Treatment

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT00202527
Study type Interventional
Source Sociedad Española de Neumología y Cirugía Torácica
Contact JOAQUIN DURAN-CANTOLLA, MD
Phone 34 945 007308
Email joaquin.duran@wanadoo.es
Status Recruiting
Phase N/A
Start date January 2005
Completion date September 2005
View Details
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