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Obstructive Sleep ApneaNCT04198493

Effect of CPAP Treatment in Cognition in Adults With DS and OSA

A study testing CPAP and CONSERVATIVE TREATMENT for OSA in people with Obstructive Sleep Apnea, run by Fundació Institut de Recerca de l'Hospital de la Santa Creu i Sant Pau at 1 site in Spain.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

Adults with Down syndrome (DS) have a high prevalence of obstructive sleep apnea (OSA), which may worsen cognitive performance. In general population, continuous positive airway pressure (CPAP), the gold Standard treatment for OSA, partially reverses cognitive impairment secondary to OSA. 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?
CPAP and CONSERVATIVE TREATMENT for OSA
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
60 participants
Where
1 siteSpain
Study dates
Dec 2019to Nov 2021
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
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Subjects of both sexes with ages over 18 years old with DS.
  • A good general health with adequate visual and auditory acuity will be required
  • Understanding and accepting the study procedures and signing an informed consent (guardian and / or patient).
  • intelligence quotient(IQ) ratio> 34 (mild and moderate severe intellectual disability according to the International Statistical Classification of Diseases and Related Health Problems, ICD-10, criteria).
  • Subjects without dementia: Absence of loss of cognitive functions (demonstrated by the longitudinal administration of neuropsychological tests and verified by family members)
  • Absence of psychiatric comorbidity

Who cannot join

  • Severe intellectual disability (due to limitations in cognitive tests)
  • Presence of psychiatric pathology, unstable disease, cardiac or respiratory failure.
  • Intake of psychoactive drugs in the three months prior to the study.
  • Patients diagnosed with OSA, undergoing treatment with CPAP.
  • Subjects with an Epworth Sleep Scale score > 12

Trial locations and contacts

1 site in 1 country.

SANDRA GIMENEZ BADIA, MD, PhD contact

+34935537855

sgimenez@santpau.cat

Spain1 site
  • Multidisciplinary Sleep Unit. Hospital de la Santa Creu i Sant Pau

    Barcelona, 08025

    Sandra Gimenez, MD, PhD, +34935537324, sgimenez@santpau.cat

Other trials in Spain

About this study

Official title: Impact of Continuous Positive Airway Pressure Treatment on Cognitive Function in Adults With Down Syndrome With Obstructive Sleep Apnea

Adults with Down syndrome (DS) have a high prevalence of obstructive sleep apnea (OSA), which may worsen cognitive performance.

In general population, continuous positive airway pressure (CPAP), the gold Standard treatment for OSA, partially reverses cognitive impairment secondary to OSA. CPAP treatment, however, is not regularly proposed in adults with DS and OSA. It is usually presumed both by caregivers and physicians, that DS patients will not tolerate or adapt to the treatment, and that they would not benefit much more from CPAP treatment. Therefore, data about the feasibility and impact of CPAP treatment on cognitive function in this population is lacking.

The main objective of this study is to investigate cognitive performance in adults with DS and OSA, the corresponding functional brain changes and their reversibility with CPAP treatment.

Read the detailed description

Population Participants will be included from the Catalan Down Syndrome Foundation (FCSD). After obtaining a written informed consent, approved by the ethical committee, a total of 60 adult subjects of both sexes with SD and without dementia will be included. Forty subjects with a diagnosis of severe OSA (AHI> 30) without significant comorbidities or excessive daytime sleepiness (Epworth <12) and 20 subjects without OSA.

Objectives:

The general objective is to evaluate cognitive and/or behavioural dysfunction in adults with Down syndrome that can improve with CPAP treatment.

  • By evaluating sleep, cognitive function and behaviour aspects in adults with Down syndrome with and without OSA.
  • By assessing the changes in sleep, in cognitive, behavioural function, and brain connectivity measures after 6 month of treatment in subjects with DS and severe OSA.

Secondary objectives:

  • Assess the relationship between the severity of OSA (AHI, hypoxemia, sleep fragmentation) and severity in cognitive impairment.
  • Identify possible sleep and anthropometric parameters that could suggest a worsening in cognitive function in subjects with DS and OSA.

Methodology:

Open pilot study with randomized therapeutic intervention of parallel groups and blind evaluation in neuropsychological assessment.

Patients with severe OSA will be randomized to i) conservative treatment (CT) or to ii) CPAP and conservative treatment.

Patients included in the study will be monitored and followed for 6 months. Patients with severe OSA will perform follow up visits to monitor the objective compliance and side effects of the treatment in the 1st, 3rd and 6th month.

At baseline and after 6 months of treatment, in the three groups of subjects (i) Subjects without OSA, ii) Subjects with OSA and CPAP treatment, and iii) Subjects with OSA+ TC treatment , it will be performed:

  1. Sleep evaluation: Subjective sleep quality (Pittsburgh sleep quality index) and daytime Somnolence (Epworth Sleepiness Scale) Nocturnal sleep by polysomnography (PSG) Sleep-wake pattern by actigraphy
  2. Neurocognitive function with an extensive neuropsychological battery assessing mainly memory, attention and executive functions for DS population. (CAMCOG-DS, Cued Recall Test (CRT), different subtests of the Barcelona Test battery: orientation in person, time and space, language items (comprehension, reading and writing), verbal abstraction and oculomotor praxis, cats and dogs test, Attention cancellation test, verbal fluency test.
  3. Measures of cerebral functional connectivity: through measures of consistency, mutual information, probability of synchronization and transfer entropy.
Being tested
CPAP, CONSERVATIVE TREATMENT for OSA
Keywords
Down Syndrome, Polysomnography
Medical subject headings
Sleep Apnea, Obstructive, Down Syndrome

What participants receive

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

  • CPAPDevice

    CPAP treatment every night plus conservative treatment for OSA: sleep hygiene and dietary counseling

  • CONSERVATIVE TREATMENT for OSAOther

    Conservative treatment for OSA: sleep hygiene and dietary counseling

Study groups in NCT04198493
Study groupRoleWhat they receive
Continuous Positive Airway Pressure(CPAP)ExperimentalPatients with CPAP treatment. Titration will be performed by polysomnography CPAP to determine the optimal treatment pressure. This group will also be instructed in sleep hygiene and dietary counseling Intervention: Device: CPAP Other: Conservative treatment for OSA
Receives: Device: CPAP; Other: CONSERVATIVE TREATMENT for OSA
CONSERVATIVE TREATMENT for OSAActive comparatorSleep hygiene and dietary counseling. Sleep hygiene (regular sleep schedule, physical exercise) and dietary counseling Intervention: Other: Conservative treatment for OSA
Receives: Other: CONSERVATIVE TREATMENT for OSA

What is being measured

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

  1. Assessment of the changes on cognitive attentional tasks

    psychomotor speed (in seconds) performing an attentional task

    Measured: Baseline and after 6 months of treatment

  2. Changes in cerebral functional connectivity

    Significant probability maps (SPM) showing statistical changes on connectivity measures between sleep stages

    Measured: Baseline and after 6 months of treatment

Timeline

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

  1. First posted13 Dec 2019
  2. Study startDec 2019 (estimated)
  3. Primary completionNov 2020 (estimated)
  4. Study completionNov 2021 (estimated)

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
Model description
Open pilot study with randomized therapeutic intervention of parallel groups and blind evaluation in neuropsychological assessment.
Masking
Single blind
Who is masked
Outcomes assessor
Enrolment
60 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04198493
Sponsor's protocol ID
IIBSP-SAH-2019-62
Status last verified
Dec 2019
First submitted
28 Nov 2019
Last updated
17 Dec 2019
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A study testing CPAP and CONSERVATIVE TREATMENT for OSA in people with Obstructive Sleep Apnea, run by Fundació Institut de Recerca de l'Hospital de la Santa Creu i Sant Pau at 1 site in Spain.

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 6 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: status not confirmed, as of the sponsor's last update on 17 Dec 2019. 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 Spain. 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?

Results are not available in the source record.

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

Contact SANDRA GIMENEZ BADIA, MD, PhD (+34935537855, sgimenez@santpau.cat), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Assessment of the changes on cognitive attentional tasks (time frame: Baseline and after 6 months of treatment). The study lists 2 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 17 Dec 2019.

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