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Obstructive Sleep ApneaNCT02699463

Assessment of the Effect of PAP on Energy and Vitality in Mild OSA Patients: The Merge Study

A study testing Continous Positive Airway Pressure in people with Obstructive Sleep Apnea, run by ResMed at 11 sites in United Kingdom.

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

The investigators wish to prospectively determine the response to CPAP in patients presenting with mild OSA. In many healthcare systems, patients with mild OSA (AHI 5-15) are not reimbursed for treatment. Read more about this study

Who is it for?
Ages 18 to 80 years
Conditions the study is for
Obstructive Sleep Apnea
What is being tested?
Continous Positive Airway Pressure
Type of treatment
Medical device
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
301 participants
Where
11 sitesUnited Kingdom
Study dates
Dec 2016to Aug 2019
Phase
Interventional
Are there results?
Yes, posted in the registrySummary in the doctors' view

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 to 80 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

None listed.

Who cannot join

  • The presence of unstable cardiac disease
  • Inability to give fully informed consent
  • Supplemental oxygen
  • Secondary sleep pathology e.g. Periodic Limb Movement Syndrome, Narcolepsy, Circadian Disorder, obesity hypoventilation syndrome
  • ESS ≥ 15, or concerns about sleepy driving from physician/ sleep lab staff
  • BMI ≥ 40

Trial locations and contacts

11 sites in 1 country.

11 sites in 1 country

United Kingdom11 sites
  • Blackpool Teaching Hospital

    Blackpool

  • Papworth Hospital

    Cambridge

  • Tayside Health Board, Ninewells Hospital

    Dundee

  • Aintree University Hospital

    Liverpool

  • Royal Brompton Hospital, Imperial College London

    London, SW3 6NP

  • Guys & St Thomas Hospital

    London

  • Freeman Hospital

    Newcastle upon Tyne, Newcastle

  • Oxford Centre for Respiratory Medicine

    Oxford

  • Derriford Hospital

    Plymouth

  • Lister Hospital

    Stevenage

  • Taunton and Somerset Hospital

    Taunton

Other trials in United Kingdom

About this study

Official title: Assessment of the Effect of Positive Airway Pressure on Energy and Vitality in Mild Obstructive Sleep Apnea Patients: The Merge Study

The investigators wish to prospectively determine the response to CPAP in patients presenting with mild OSA. In many healthcare systems, patients with mild OSA (AHI 5-15) are not reimbursed for treatment. Although some evidence exists of the benefits of treating mild OSA when scoring as per AASM 2007 criteria, more evidence is needed. The investigators wish to add to this pool of knowledge and also increase the inclusion criteria to include the AASM 2012 definition of mild OSA. By including the 2012 AASM definition of mild OSA, the investigators will add novel information to the field by assessing the benefits of treatment in both sub-groups of mild OSA.

Read the detailed description

Patients who visit their local sleep service for OSA investigation, and are found to have mild OSA (AHI ≤ 15) from an Apnealink polygraphy (PG) home sleep test, scored as per AASM 2007 and/or AASM 2012, will be invited to take part in the study (pre-screening).

At the study visit, informed consent, baseline demographics, and standardised questionnaires will be administered. Participants will then be randomised to a CPAP treatment group or control group.

After 3 months, participants will be asked to repeat the standardised questionnaires, the trial will then be complete and they will return to routine clinical care.

Being tested
Continous Positive Airway Pressure, Control Group
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.

  • Continous Positive Airway PressureDevice

    Also called CPAP

    CPAP refers to the application of positive airway pressure through a mask and tubing to splint a patients throat open at night. CPAP is considered standard treatment for OSA

  • Control GroupOther

    Standard sleep hygiene counseling as per published guidelines

Study groups in NCT02699463
Study groupRoleWhat they receive
Continous Positive Airway PressureActive comparatorParticipants in this group will use CPAP therapy, nightly, for the 3 month duration of the trial
Receives: Device: Continous Positive Airway Pressure
Control GroupPlacebo comparatorParticipants will receive standard care (Sleep hygiene counseling) during the study.
Receives: Other: Control Group

What is being measured

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

  1. Change in Quality of Life Using the Energy and Vitality Subscale of the Short Form 36 (SF-36) Questionnaire

    The Short Form 36 (SF-36) questionnaire measures quality of life through a range of questions asking about patients physical and mental functioning. Specifically, the Energy and Vitality subscale records patients perceptions of their levels of energy and fatigue. Participants were administered the Short Form 36 (SF-36) questionnaire at baseline and 3 months. The change in score (value at 3 months minus value at baseline) was compared between the CPAP group and the Control group.

    In the SF-36 Energy and Vitality subscale, an increase in score indicates improvement, with a minimum score of 0 and a maximum score of 100 possible.

    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 posted4 Mar 2016 (estimated)
  2. Study startDec 2016
  3. Primary completionMay 2019
  4. Study completionAug 2019

Resources

More details

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

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
301 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02699463
Sponsor's protocol ID
MA200216
Status last verified
Jan 2021
First submitted
1 Mar 2016
Last updated
26 Jan 2021
Data monitoring committee
No
Individual data sharing
No

Publications

  • Wimms AJ, Kelly JL, Turnbull CD, McMillan A, Craig SE, O'Reilly JF, Nickol AH, Hedley EL, Decker MD, Willes LA, Calverley PMA, Benjafield AV, Stradling JR, Morrell MJ; MERGE trial investigators. Continuous positive airway pressure versus standard care for the treatment of people with mild obstructive sleep apnoea (MERGE): a multicentre, randomised controlled trial. Lancet Respir Med. 2020 Apr;8(4):349-358. doi: 10.1016/S2213-2600(19)30402-3. Epub 2019 Dec 2.

    PubMed 31806413

Questions about this trial

What is this clinical trial studying?

A study testing Continous Positive Airway Pressure in people with Obstructive Sleep Apnea, run by ResMed at 11 sites in United Kingdom.

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 0 inclusion and 6 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 26 Jan 2021. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 11 sites in United Kingdom. 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. Some participants in this study may receive a placebo. 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?

Yes. Results are posted in the registry (first posted 26 Jan 2021). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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 in Quality of Life Using the Energy and Vitality Subscale of the Short Form 36 (SF-36) Questionnaire (time frame: 3 months). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02699463, which also lists 1 linked publication.

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 26 Jan 2021.

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