Impact of CPAP Treatment on Arterial Stiffness in Patients With T2DM and Newly Diagnosed Obstructive Sleep Apnoea

March 27, 2017 updated by: Nordsjaellands Hospital

DiaBOSA: Impact of CPAP Treatment on Arterial Stiffness in Patients With Type 2 Diabetes and Newly Diagnosed Obstructive Sleep Apnoea

The purpose of the trial is to investigate the effects of three months' treatment with a CPAP-device versus control group on change in arterial stiffness in type 2 diabetes (T2D) patients with newly detected Obstructive Sleep Apnoea (OSA).

Study Overview

Status

Unknown

Conditions

Intervention / Treatment

Detailed Description

Background: Obstructive sleep apnoea (OSA) is a common disorder characterised by recurrent episodes of apnoea or hypopnoea during sleep. OSA is associated with excessive daytime sleepiness and linked to increased cardiovascular morbidity and mortality. OSA can be alleviated with Continuous Positive Airway Pressure (CPAP) treatment.

Cardiovascular disease is the major cause of decreased life expectancy, morbidity and reduced quality of life in patients with type 2 diabetes (T2D). Increased stiffness of the aorta has been associated with increased cardiovascular morbidity and mortality in diabetic patients.

Previous studies have reported a much higher frequency of OSA in patients with obesity and T2D compared with non-diabetic subjects, and found that OSA was associated with arterial stiffness. However, whether CPAP treatment improves arterial stiffness and insulin sensitivity in T2D patients remain to be elucidated.

Objective: To investigate the effects of three months' treatment with a CPAP-device versus sham CPAP on change in arterial stiffness in T2D patients with newly detected OSA.

Design: Randomised, controlled, multicentre study of intervention with CPAP treatment versus control group. The treatment period is three months with a subsequent 9 months open extension.

Patient population: 70 patients with T2D and newly diagnosed OSA recruited from Department of Cardiology, Nephrology and Endocrinology, Nordsjællands Hospital, Department of Endocrinology, Gentofte University Hospital, Department of Endocrinology and Internal Medicine, Aarhus University Hospital Nørrebrogade and Department of Internal Medicine, Silkeborg Sygehus.

Intervention: CPAP treatment versus control group.

Endpoints:

Primary endpoint: Change in arterial stiffness measured by office carotid-femoral pulse wave velocity (cf-PWV) from start to end of 12 weeks intervention.

Study Type

Interventional

Enrollment (Anticipated)

70

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Locations

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Type 2 diabetes mellitus (WHO criteria)
  • Obstructive sleep apnea defined as apnoea-hypopnoea index (AHI) > 15 diagnosed with ApneaLink+® measured within three months or less prior to visit 0.
  • Signed informed content.

Exclusion Criteria:

  • Contraindications to CPAP treatment.
  • Treatment with CPAP within the last 6 months prior to visit 1.
  • Works in a transportation-related industry
  • C-peptide < 300 pmol/l - measured less than 6 months prior to visit 0
  • HbA1c:< 7% or >10% - both exclusive - at visit 0
  • Changes in antidiabetic treatment during the last four weeks prior to visit 0.
  • Unstable bodyweight, i.e. >5% change during the last three months prior to visit 0.
  • Other sleep breathing disorder

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Other: Control group
Other: Control
Control
Active Comparator: CPAP treatment
Continuous Positive Airway Pressure (CPAP) treatment during three month.
Device: CPAP
CPAP intervention

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Change in arterial stiffness measured by office carotid-femoral pulse wave velocity (cf-PWV) from start to end of 12 weeks intervention
Time Frame: three month
three month

Secondary Outcome Measures

Outcome Measure
Time Frame
Change from start to end of 13 weeks intervention in insulin sensitivity measured by hyperinsulinemic euglycemic clamp
Time Frame: three month
three month

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Nordsjaellands Hospital

Collaborators

Aarhus University Hospital

Investigators

  • Principal Investigator: Esben Laugesen, MD, Aarhus Universitets Hospital

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

April 1, 2015

Primary Completion (Anticipated)

February 1, 2018

Study Completion (Anticipated)

August 1, 2018

Study Registration Dates

First Submitted

March 31, 2015

First Submitted That Met QC Criteria

June 23, 2015

First Posted (Estimate)

June 26, 2015

Study Record Updates

Last Update Posted (Actual)

March 28, 2017

Last Update Submitted That Met QC Criteria

March 27, 2017

Last Verified

November 1, 2016

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • DiaBOSA

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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