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Obstructive Sleep ApneaNCT04084899

The Effect of CPAP on Lung Hyperinflation in Patients With OSA

An observational study of Obstructive Sleep Apnea, run by University Hospital Olomouc at 1 site in Czechia.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Assessment of the lung hyperinflation by bodypletysmography in patients with obstructive sleep apnoea treated with continuous positive airway pressure therapy. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Obstructive Sleep Apnea
What is being tested?
Continuous Positive Airway Pressure therapy
Type of treatment
Medical device
How many people
50 participants
Where
1 siteCzechia
Study dates
5 Sep 2019to 9 Jan 2020
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: Patients with obstructive sleep apnoea syndrome indicated for CPAP therapy

Who may be able to join

  • Obstructive sleep apnoea syndrome indicated for CPAP therapy (Apnoea- Hypopnoea index ˃ 15)

Who cannot join

  • - Bilevel positive airway pressure therapy
  • Total lung capacity < 80% lower limit of normal values
  • Obstructive ventilatory disorder
  • Change in body weight ˃ 10%
  • Change in smoking status

Trial locations and contacts

1 site in 1 country.

Czechia1 site
  • University Hospital Olomouc

    Olomouc, 77900

Other trials in Czechia

About this study

Official title: The Effect of Continuous Positive Airway Pressure Therapy on Lung Hyperinflation in Patients With Obstructive Sleep Apnoea

Assessment of the lung hyperinflation by bodypletysmography in patients with obstructive sleep apnoea treated with continuous positive airway pressure therapy.

Read the detailed description

Rationale:

Obstructive sleep apnoea (OSA) is characterized by repetitive closure of upper airways leading to apnoea (complete airflow cessation) or hypopnoea (airflow limitation > 50% + blood oxygen desaturation > 3% or airflow limitation > 30% blood oxygen desaturation > 4%). The prevalence of lung hyperinflations in sleep apnoea patients and effect of continuous positive airway pressure (CPAP) therapy is not known.

Process:

Subjects included in the study will be obstructive sleep apnoea (OSA) patients diagnosed by respiratory polysomnography performed in the Sleep Laboratory, Department of Respiratory Medicine, University Hospital Olomouc.

Bodypletysmography will be performed in the time of OSA diagnosis and after 3 months of CPAP therapy.

Data will be statistically evaluated after completion of the target number of subjects.

Being tested
Continuous Positive Airway Pressure therapy
Keywords
Obstructive Sleep Apnea, Continuous Positive Airway Pressure, Lung hyperinflation
Medical subject headings
Sleep Apnea, Obstructive

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Continuous Positive Airway Pressure therapyDevice

    Standard treatment with continuous positive airway pressure

Study groups in NCT04084899
Study groupRoleWhat they receive
Continuous Positive Airway PressurePatient treated with continuous positive airway pressure
Receives: Device: Continuous Positive Airway Pressure therapy

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Change of Vital Capacity (VC) (ml)

    Percentage change of Vital Capacity after 3 months of CPAP therapy.

    Measured: 3 months

  2. Change of Forced Expiratory Volume in 1 second (FEV1) (ml)

    Percentage change of Forced Expiratory Volume in 1 second after 3 months of CPAP therapy.

    Measured: 3 months

  3. Change of Total Lung Capacity (TLC) (ml)

    Percentage change of Total Lung Capacity after 3 months of CPAP therapy.

    Measured: 3 months

  4. Change of Residual Volume (RV) (ml)

    Percentage change of Residual Volume after 3 months of CPAP therapy.

    Measured: 3 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted10 Sep 2019
  2. Study start5 Sep 2019
  3. Primary completion9 Jan 2020
  4. Study completion9 Jan 2020

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
50 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04084899
Sponsor's protocol ID
OSAS_bodypletysmo
Status last verified
Jan 2020
First submitted
5 Sep 2019
Last updated
13 Jan 2020
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Undecided

Questions about this trial

What is this clinical trial studying?

An observational study of Obstructive Sleep Apnea, run by University Hospital Olomouc at 1 site in Czechia.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 1 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 13 Jan 2020. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Czechia. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Change of Vital Capacity (VC) (ml) (time frame: 3 months). The study lists 4 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 13 Jan 2020.

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