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Obstructive Sleep ApneaPOSANCT02045576

RCT: Oral Appliance Therapy and Sleep Position Trainer in Patients With Position Dependant Obstructive Sleep Apnea

A study testing sleep position trainer and Oral Appliance Therapy in people with Obstructive Sleep Apnea and Sleep Position Trainer, run by Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA) at 2 sites in Netherlands.

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

SUMMARY Rationale: Fifty-six percent of patients with Obstructive Sleep Apnea (OSA) are position dependent, defined as having an AHI, which is at least twice as high in supine sleeping position compared to the AHI during sleep in other positions. Read more about this study

Who is it for?
Ages 18 years and olderHealthy volunteers can take part
What is being tested?
sleep position trainer and Oral Appliance Therapy
Could I receive a placebo?
No, everyone receives an active treatment
How many people
99 participants
Where
2 sitesNetherlands
Study dates
Jun 2013to Jul 2016
Phase
Interventional
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
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • 18 years and older.
  • Ability to speak, read and write Dutch.
  • Ability to follow up.
  • Ability to use a computer with internet connection and windows-software for uploading data and online questionnaires.
  • Diagnosis with symptomatic mild or moderate OSA (5 < AHI < 30).
  • Diagnosis of 10 to 90% supine position during the night.
  • AHI supine is >2 times as high as AHI non-supine.
  • Expected to maintain current lifestyle (sports, medicine, diet etc.).

Who cannot join

  • Many dental problems; insufficient teeth for wearing OAT.
  • Medication used/ related to sleeping disorders.
  • Central Sleep Apnoea Syndrome.
  • Night or shifting work.
  • Severe chronic heart failure.
  • Medical history of known causes of tiredness by day or severe sleep disruption (insomnia, PLMS, Narcolepsy).
Show all 15Show fewer
  • Seizure disorder.
  • Known medical history of mental retardation, memory disorders or psychiatric disorders.
  • Patients with old type of pacemakers (It is possible that old types of peacemakers are not compatible with the electromagnetic radiation of the electronics of the SPT).
  • Shoulder, neck and back complaints.
  • Reversible morphological upper airway abnormalities (e.g. enlarged tonsils).
  • Inability to provide informed consent.
  • Simultaneous use of other treatment modalities to treat OSA.
  • Previous treatment for OSA with OAT or SPT
  • Pregnancy.

Trial locations and contacts

2 sites in 1 country.

Netherlands2 sites
  • Academic Medical Center

    Amsterdam

  • St Lucas Andreas Hospital

    Amsterdam

Other trials in Netherlands

About this study

Official title: Positional Therapy With the Sleep Position Trainer Versus Oral Appliance Therapy in Patients With Position Dependent Obstructive Sleep Apnea; A Randomised Controlled Trial

SUMMARY Rationale: Fifty-six percent of patients with Obstructive Sleep Apnea (OSA) are position dependent, defined as having an AHI, which is at least twice as high in supine sleeping position compared to the AHI during sleep in other positions. Standard therapy for patients having mild or moderate POSA is treatment with an Oral Appliance Trainer (OAT). Recently a new device Sleep Position Trainer (SPT) is been introduced especially for patients with POSA.

Objective: To compare the effect of positional therapy with the SPT versus OAT on polysomnographic (PSG) parameters, to evaluate the compliance and measuring the possible learning effect that might occur with POSA patients using the SPT for positional therapy over a long term.

Read more

Study design: Randomised controlled trial Study population: The participants of the research will be recruited from the departments of Otolaryngology and Clinical Neurophysiology, Saint Lucas Andreas Hospital, Amsterdam, the Netherlands.

Participants will be males or females older than 18 years with diagnosis of positional OSA.

Intervention: The SPT is a sensor positioned in an elastic band attached around the body. The SPT measures the body position and vibrates when the patient lies in supine position. Oral appliance therapy (OAT) is an intra-oral prosthesis, which holds the mandible in a protrusive position. Because of this position more pharyngeal space will be available and the AHI will decrease. After randomisation the first group (n=45) will sleep for a period of 90 +/- 2 days with the SPT every night. The second group (n=45) will also sleep for a period of 90 +/- 2 days only with OAT. After this period the PSG is repeated. Long- term outcome in AHI is measured by repeating the PSG after 1 year. Main study parameters/ endpoints: Primary endpoints; reduction of PSG parameters, in particular AHI, AI, HI, DI, reduction of % of sleeping supine sleep position, without disturbance of the sleep quality.

Secondary endpoints: Outcome of Quality of Life questionnaires; EQ-5D, ESS, FOSQ and MFIQ.

Compliance and learning effect will also be evaluated for the time period of 3 and 12 months. Finally cardiovascular parameters like blood pressure, pulse rate and BMI/neck circumference will be assessed.

Nature and extent of the burden and risks associated with participation, benefit and group relatedness: The risks for patients participating in this study are negligible. Inconveniences of the SPT can be discomfort caused by irritation of the band, difficulties with an increased sleeping period on the side or difficulties sleeping with the SPT. This can be compensated by the expected improvement of sleep quality caused by the therapy. Possible side effects of OAT may be discomfort in the jaw, sensitivity of the teeth and a dry mouth. Withdrawing from this therapy means immediate relief of inconveniences.

Being tested
sleep position trainer, Oral Appliance Therapy
Keywords
Obstructive Sleep Apnea, sleep position trainer, oral appliance therapy, mandibular advancement device or splint
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.

  • sleep position trainerDevice

    Also called Nightbalance

  • Oral Appliance TherapyDevice

    Also called Somnodent

Study groups in NCT02045576
Study groupRoleWhat they receive
Sleep position trainerExperimentalNightbalance
Receives: Device: sleep position trainer
Oral Appliance TherapyActive comparatorSomnodent
Receives: Device: Oral Appliance Therapy

What is being measured

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

  1. Efficacy in reducing the mean AHI

    Apnoea Hypopnoea Index (AHI)

    Measured: 12 months

Secondary outcomes (4)
  1. effectiveness in quality of life

    Outcomes in QoL- questionnaires:

    EQ-5D, Epworth Sleeping Scale (ESS), Functional Outcome Sleep Questionnaire (FOSQ), Mandibular Function Impairment Questionnaire (MFIQ).

    Measured: 3, 6, 9 and 12 months

  2. Compliance

    Actual wearing time in minutes per night

    Measured: 3, 6, 9, 12 months

  3. Cardiovascular parameters

    Blood pressure

    Measured: 3, 6, 9, 12 months

  4. Cardiovascular parameters

    Pulse

    Measured: 3, 6, 9 and 12 months

Timeline

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

  1. First posted27 Jan 2014 (estimated)
  2. Study startJun 2013
  3. Primary completionJul 2016
  4. Study completionJul 2016

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
Single blind
Who is masked
Outcomes assessor
Enrolment
99 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02045576
Sponsor's protocol ID
POSA
Acronym
POSA
Status last verified
Jul 2016
First submitted
26 Nov 2013
Last updated
12 Jul 2016
Results posted
No
Data monitoring committee
Yes

Publications

  • de Ruiter MHT, Benoist LBL, de Vries N, de Lange J. Durability of treatment effects of the Sleep Position Trainer versus oral appliance therapy in positional OSA: 12-month follow-up of a randomized controlled trial. Sleep Breath. 2018 May;22(2):441-450. doi: 10.1007/s11325-017-1568-4. Epub 2017 Sep 15.

    PubMed 28913630
  • Benoist L, de Ruiter M, de Lange J, de Vries N. A randomized, controlled trial of positional therapy versus oral appliance therapy for position-dependent sleep apnea. Sleep Med. 2017 Jun;34:109-117. doi: 10.1016/j.sleep.2017.01.024. Epub 2017 Mar 27.

    PubMed 28522078

Questions about this trial

What is this clinical trial studying?

A study testing sleep position trainer and Oral Appliance Therapy in people with Obstructive Sleep Apnea and Sleep Position Trainer, run by Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA) at 2 sites in Netherlands.

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 8 inclusion and 15 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 12 Jul 2016. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in Netherlands. 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?

Efficacy in reducing the mean AHI (time frame: 12 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 NCT02045576, which also lists 2 linked publications.

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 12 Jul 2016.

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