NCT01365832

Brief Summary

C-reactive protein (CRP) is directly implicated in atherogenesis and associated cardiovascular morbidity in patients with obstructive sleep apnea (OSA). Effective Continuous Positive Airway Pressure (CPAP) treatment has been shown to gradually decrease CRP levels and thus consequently improve disease-related cardiovascular morbidity. However, the influence of gender on the CRP evolution pattern has never been assessed before. The aim of our study was to investigate possible gender differences in CRP evolution in OSA patients 3 and 6 months after the start of effective CPAP treatment.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
436

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Jan 2007

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

January 1, 2007

Completed
2.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 1, 2009

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2009

Completed
2 years until next milestone

First Submitted

Initial submission to the registry

May 17, 2011

Completed
17 days until next milestone

First Posted

Study publicly available on registry

June 3, 2011

Completed
Last Updated

June 6, 2011

Status Verified

April 1, 2011

Enrollment Period

2.4 years

First QC Date

May 17, 2011

Last Update Submit

June 3, 2011

Conditions

Outcome Measures

Primary Outcomes (1)

  • Change in CRP in OSA patients, according to gender, 3 and 6 months after the start of effective CPAP treatment.

    Day 1, Month 3 and Month 6 post treatment

Study Arms (1)

Sleep apnea

EXPERIMENTAL

Participants with Obstructive Sleep Apnea (OSA).This arm will undergo a pre-treatment blood draw, six months of Continuous Positive Airway Pressure (CPAP) to treat OSA, and a post-treatment blood draw 3 and 6 months later. Intervention: Procedure: Continuous Positive Airway Pressure (CPAP)

Procedure: Continuous Positive Airway Pressure (CPAP)

Interventions

Continuous positive airway pressure (CPAP) is the gold standard for Obstructive Sleep Apnea (OSA) management. Subjects with OSA will be trained in the use of CPAP and will be instructed to use CPAP every night for 6 months. These subjects will then return for a post-treatment blood draw 3 and 6 months after the start of effective CPAP treatment

Also known as: positive pressure ventilation
Sleep apnea

Eligibility Criteria

Age18 Years - 65 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Patients with apnoea-hypopnoea index \>15/h

You may not qualify if:

  • chronic obstructive pulmonary disease
  • diabetes mellitus
  • coronary artery disease
  • congestive heart failure
  • chronic renal failure
  • known dyslipidemia
  • smoking history
  • hypothyroidism
  • chronic or recent infectious or inflammatory disease
  • use of anti-inflammatory or antibiotic drugs, or statins.
  • postmenopausal females on estrogen replacement therapy.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Sleep Disorders Unit, Department of Thoracic Medicine, Medical School, University of Crete

Heraklion, Crete, 71110, Greece

Location

MeSH Terms

Conditions

Sleep Apnea, Obstructive

Interventions

Continuous Positive Airway PressurePositive-Pressure Respiration

Condition Hierarchy (Ancestors)

Sleep Apnea SyndromesApneaRespiration DisordersRespiratory Tract DiseasesSleep Disorders, IntrinsicDyssomniasSleep Wake DisordersNervous System Diseases

Intervention Hierarchy (Ancestors)

Respiration, ArtificialAirway ManagementTherapeuticsRespiratory Therapy

Study Officials

  • Sophia E Schiza, MD, PhD

    University of Crete

    STUDY CHAIR
  • Charalampos Mermigkis, MD

    Sleep Disorders Center, Pulmonary Department, 401 General Army Hospital, Athens, Greece

    STUDY DIRECTOR
  • Izolde Bouloukaki, MD, PhD

    University of Crete

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER

Study Record Dates

First Submitted

May 17, 2011

First Posted

June 3, 2011

Study Start

January 1, 2007

Primary Completion

June 1, 2009

Study Completion

June 1, 2009

Last Updated

June 6, 2011

Record last verified: 2011-04

Locations