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CompletedNCT00765713SAHS-ICDUpdated Apr 2, 2013

Sleep Apnea-hypopnea Syndrome (SAHS) and Ventricular Arrhythmias

A Phase 4 interventional study of Nasal continuous positive airway pressure in Sleep Apnea, Ventricular Arrythmias and Systolic Left Ventricle Dysfunction, sponsored by Hospital Universitario La Paz. Completed at 3 sites in Spain. Open to participants aged 18 Years to 75 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2013-04-02.

Sponsored by Hospital Universitario La Paz · Phase 4, Interventional, and Treatment

Phase
Phase 4
Study type
Interventional
Enrollment
224
Allocation
Randomized
Ages
18 Years to 75 Years
Sex
All
01

Study summary

Hypothesis:

The CPAP treatment diminishes the effect of ventricular arrhythmias in patients with ischemic heart disease or dilated myocardiopathy, systolic ventricular disfunction and sleep apnea-hypopnea syndrome (SAHS)Objectives: To analyze the incidence of ventricular arrhythmias (premature ventricular beat, non-sustained ventricular tachycardia and sustained ventricular tachycardia) and appropriate defibrillator therapies in patients with ischemic heart disease or dilated myocardiopathy, moderate-severe left ventricular dysfunction,with an implantable cardioverter-defibrillator (ICD) and sleep apnea. To study the effect of CPAP on the cardiac arrhythmias and on the number of appropriate defibrillator therapies.

Design:

Parallel, randomized and single-blinded multicentric study to compare CPAP vs. hygienic-dietetic recommendations.

Patients with SAHS (AHI≥15) and systolic left ventricle dysfunction patients with an ICD.

Duration: 24 months.

Read the detailed description

Secondary objectives:

To compare the prevalence of SAHS in patients with ischemic heart disease or dilated myocardiopathy and moderate-severe left ventricle dysfunction with ICD with that of the general population. To study the incidence of supraventricular arrhythmias (atrial fibrillation, atrial flutter or supraventricular tachycardia) and inappropriate defibrillator therapies in these patients. To value the effect of the treatment with CPAP on the above mentioned arrhythmias. To relate the effect of ventricular and supraventricular arrhythmias with sleep parameters, cardiovascular biomarkers, inflammation and oxidative stress. To evaluate the long-term effect of the CPAP on systemic biomarkers in patients with ischemic heart disease or dilated myocardiopathy and moderate-severe left ventricle dysfunction. To evaluate the long-term effect of CPAP on the quality of life in these patients.

Sample size:

224 patients with ischemic heart disease or dilated myocardiopathy and moderate-severe left ventricle dysfunction with ICD will be included to randomize 19 SAHS subjects for arm.

02

Conditions studied

  • Sleep Apnea
  • Ventricular Arrythmias
  • Systolic Left Ventricle Dysfunction

Keywords

  • Sleep apnea
  • CPAP
  • Ventricular arrhythmias
  • Defibrillator therapies
03

In context

Apnea

1,423 studies on the registry are indexed under Apnea; 160 are open to participants now.

This study's enrollment of 224 is above the median of 51 across 966 interventional studies indexed under Apnea.

Browse Apnea studies →

Lead sponsor

Hospital Universitario La Paz is the lead sponsor of 51 studies on the registry; 18 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 75 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  • Previous diagnostic of ischaemic heart disease of dilated myocardiopathy
  • Ejection fraction of left ventricle \< 40%
  • Patients with implantable cardioverter-defibrillator

Exclusion criteria

Exclusion Criteria:

  • Diurnal hypersomnolence with EES > 16
  • Morbid obesity (BMI > 35 Kg/m2).
  • Moderate-severe chronic obstructive pulmonary disease (FEV1/FVC \< 70 % and FEV1 \< 80 % of reference).
  • Known thyroid disease.
  • Previous treatment with CPAP.
05

Study design

Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Investigator)
Enrollment
224 participants (actual)

Study arms

  • Experimental
    CPAP

    Continuous positive airway pressure

    Device: Nasal continuous positive airway pressure

  • No intervention
    Conventional

    Hygienic-dietetic recommendations

Interventions

  • DeviceNasal continuous positive airway pressure

    Nocturnal

06

What researchers measure

Primary outcomes

  1. Number of appropriate defibrillator therapies

    Time frame: 24 months

Secondary outcomes

  1. AHI, incidence of premature ventricular beats and non-sustained ventricular tachycardia. Plasmatic levels of C-reactive protein, homocystein, pro-BNP, sTNFαR-I, IL-1b, IL-2, IL-6, IL-8, IL-8 and 8-isoprostane

    Time frame: 24 moths

07

Study locations

3 sites
  • Hospital Universitario La Paz
    Madrid, 28046, Spain
  • Hospital Universitario Virgen de la Macarena
    Sevilla, Spain
  • Hospital Virgen de la Salud
    Toledo, Spain
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Apr 2, 2013, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT00765713
Lead sponsor
Hospital Universitario La Paz
Collaborators
Hospital Virgen de la Salud, Hospital Universitario Virgen Macarena
First posted
Oct 3, 2008
Start date
Oct 2008
Primary completion
Oct 2012
Completion
Jan 2013
Last update
Apr 2, 2013

Study contacts

Francisco Garcia-Rio, PhD
study director · Hospital Universitario La Paz

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Sep 2008. You cannot join it, but the record below documents what was studied.

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