Sleep ApneaNCT01826032
Obstructive Sleep Apneas in Elderly:Neuroimaging Changes and Neurocognitive Function Before and After Treatment
A study testing CPAP in people with Sleep Apnea, run by Hospital Clinic of Barcelona at 1 site in Spain.
Trial summary
In the near future more than 20% of the European population will be over 65 years old and the prevalence of obstructive sleep apnea (OSA) in this aged population is known to be higher than 50%. Read more about this study
- Who is it for?
- Ages 65 years and older
- Conditions the study is for
- Sleep Apnea
- What is being tested?
- CPAP
- Type of treatment
- Medical device
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 33 participants
- Where
- 1 siteSpain
- Study dates
- Nov 2011to Sep 2014
- 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 65 years and older
- All sexes
- No healthy volunteers
- Older adult
Who may be able to join
- Men and women ≥ 65 years old.
- Patients diagnosed with OSA with an apnea-hypopnea index per hour >30.
- Patients with an Epworth Sleep Scale score ≤ 12 (without excessive daytime sleepiness).
- Signed written informed consent.
Who cannot join
- Patients with severe chronic diseases: cardiovascular or pulmonary, neurological (stroke, epilepsy, head injury...) or psychiatric.
- Any current significant systemic illness or unstable medical condition that could lead to difficulty in complying with the protocol or may, in the opinion of the investigator, compromise the conclusions.
- Mini Mental State Exam (MMSE) <24.
- Any MRI exclusions - presence of aneurysm clips, pacemakers, mechanic heart valves, ear implants, metal fragments or foreign objects in the eyes, skin or body.
- Previous CPAP treatment.
- Psycho-physical inability to complete questionnaires. Inadequate visual and auditory acuity will be excluded.
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- Presence of any previously diagnosed sleep disorders: narcolepsy, insomnia, chronic sleep deprivation, REM behavior disorder and restless leg syndrome.
- Patients with > 50% of central apneas or the presence of Cheyne-Stokes Respiration.
- History of alcohol abuse or dependence.
Trial locations and contacts
1 site in 1 country.
About this study
In the near future more than 20% of the European population will be over 65 years old and the prevalence of obstructive sleep apnea (OSA) in this aged population is known to be higher than 50%. OSA is a risk factor for cognitive dysfunction in middle-aged subjects, but the relationship between cognitive impairment and sleep breathing disorders (SBD) in the elderly has scarcely been observed.
The aim of this study is to investigate cognitive performance in elderly OSA patients, the corresponding brain morphology changes and biological markers and their reversibility with continuous positive airway pressure (CPAP) treatment.
Read the detailed description
Patients: We will include consecutive patients with a diagnosis of severe OSA (AHI> 30) without significant comorbidities or excessive daytime sleepiness (Epworth ≤ 12). Patients will be randomized to CPAP treatment or conservative treatment.
Methodology: We will assess at baseline and after 3 months of treatment:
- Neuroimaging by MRI
- Neurocognitive function with an extensive neuropsychological battery assessing principally memory, attention and executive functions (Trail-making test A and B, Rey Auditory Verbal Learning Test, Digit span, Digit symbol),
- Biological markers of inflammation and endothelial dysfunction.
Patients included in the study will be monitored and followed for three months. They will be examined at the time of inclusion, after two and six weeks and at the end (12 weeks) for clinical monitoring and the evaluation of adaptation to treatment and compliance.
- Conditions
- Sleep Apnea
- Being tested
- CPAP, Standard care for OSA
- Medical subject headings
- Sleep Apnea Syndromes
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 standard care for OSA: lifestyle, and sleep hygiene counselling
Standard care for OSAOther
sleep higiene and dietary counseling
| Study group | Role | What they receive |
|---|---|---|
| CPAP | Experimental | Patients with CPAP treatment. Titration will be performed by polysomnography or automatic CPAP to determine the optimal treatment pressure.
This group will also be instructed in hygienic-dietary measures and sleep hygiene counselling. Receives: Device: CPAP; Other: Standard care for OSA |
| Standard care for OSA | Active comparator | Sleep hygiene ( regular sleep schedule, avoid sedative drugs, alcohol and tobacco, physical exercise) and dietary counselling Receives: Other: Standard care for OSA |
What is being measured
The primary outcome is the main question the study is designed to answer.
Structural and functional brain changes
Measured: at baseline and after 3 months of treatment
Secondary outcomes (2)
Assessment of the changing of the neuropsychological tests.
Measured: at baseline and after 3 months of treatment
OSA symptoms (daytime sleepiness and everyday function) and quality of life
Measured: at baseline and after 3 months of treatment
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted8 Apr 2013 (estimated)
- Study startNov 2011
- Primary completionSep 2014
- Study completionSep 2014
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for Sleep ApneaStudies of the same condition, open and under way.
- More trials run by Hospital Clinic of BarcelonaThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
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
- Double blind
- Who is masked
- Investigator, Outcomes assessor
- Enrolment
- 33 participants (actual)
Sponsor and investigators
- Lead sponsor
- Hospital Clinic of Barcelona
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Jose M. Montserrat, Hospital Clinic of Barcelona
- Investigators
- Josep M Montserrat, MD, Principal investigator, Spanish Research Center for Respiratory Diseases
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT01826032
- Sponsor's protocol ID
- OSA-E1
- Status last verified
- Jan 2015
- First submitted
- 22 Mar 2013
- Last updated
- 22 Jan 2015
- Results posted
- No
- Data monitoring committee
- Yes
Publications
Dalmases M, Sole-Padulles C, Torres M, Embid C, Nunez MD, Martinez-Garcia MA, Farre R, Bargallo N, Bartres-Faz D, Montserrat JM. Effect of CPAP on Cognition, Brain Function, and Structure Among Elderly Patients With OSA: A Randomized Pilot Study. Chest. 2015 Nov;148(5):1214-1223. doi: 10.1378/chest.15-0171.
PubMed 26065720
Study at a glance
From the registry record, last updated by the sponsor on 22 Jan 2015. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Obstructive Sleep Apneas in Elderly:Neuroimaging Changes and Neurocognitive Function Before and After Treatment
- ClinicalTrials.gov ID
- NCT01826032
- Acronym / sponsor ID
- OSA-E1
- Conditions
- Sleep Apnea
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 33 participants (actual)
- Lead sponsor
- Hospital Clinic of BarcelonaUniversity, hospital or other
- Study start
- Nov 2011
- Primary completion
- Sep 2014 (actual)
- Study completion
- Sep 2014 (actual)
- First posted
- 8 Apr 2013 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
In the near future more than 20% of the European population will be over 65 years old and the prevalence of obstructive sleep apnea (OSA) in this aged population is known to be higher than 50%. OSA is a risk factor for cognitive dysfunction in middle-aged subjects, but the relationship between cognitive impairment and sleep breathing disorders (SBD) in the elderly has scarcely been observed.
The aim of this study is to investigate cognitive performance in elderly OSA patients, the corresponding brain morphology changes and biological markers and their reversibility with continuous positive airway pressure (CPAP) treatment.
Detailed description
Patients: We will include consecutive patients with a diagnosis of severe OSA (AHI> 30) without significant comorbidities or excessive daytime sleepiness (Epworth ≤ 12). Patients will be randomized to CPAP treatment or conservative treatment.
Methodology: We will assess at baseline and after 3 months of treatment:
- Neuroimaging by MRI
- Neurocognitive function with an extensive neuropsychological battery assessing principally memory, attention and executive functions (Trail-making test A and B, Rey Auditory Verbal Learning Test, Digit span, Digit symbol),
- Biological markers of inflammation and endothelial dysfunction.
Patients included in the study will be monitored and followed for three months. They will be examined at the time of inclusion, after two and six weeks and at the end (12 weeks) for clinical monitoring and the evaluation of adaptation to treatment and compliance.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind (investigator, outcomes assessor)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| CPAP | Experimental | Device: CPAP, Other: Standard care for OSAPatients with CPAP treatment. Titration will be performed by polysomnography or automatic CPAP to determine the optimal treatment pressure. This group will also be instructed in hygienic-dietary measures and sleep hygiene counselling. |
| Standard care for OSA | Active comparator | Other: Standard care for OSASleep hygiene ( regular sleep schedule, avoid sedative drugs, alcohol and tobacco, physical exercise) and dietary counselling |
Who may qualify
- Ages
- 65 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Older adult
Key inclusion criteria (4 listed)
- Men and women ≥ 65 years old.
- Patients diagnosed with OSA with an apnea-hypopnea index per hour >30.
- Patients with an Epworth Sleep Scale score ≤ 12 (without excessive daytime sleepiness).
- Signed written informed consent.
Key exclusion criteria (9 listed)
- Patients with severe chronic diseases: cardiovascular or pulmonary, neurological (stroke, epilepsy, head injury...) or psychiatric.
- Any current significant systemic illness or unstable medical condition that could lead to difficulty in complying with the protocol or may, in the opinion of the investigator, compromise the conclusions.
- Mini Mental State Exam (MMSE) <24.
- Any MRI exclusions - presence of aneurysm clips, pacemakers, mechanic heart valves, ear implants, metal fragments or foreign objects in the eyes, skin or body.
- Previous CPAP treatment.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| CPAPCPAP treatment every night plus standard care for OSA: lifestyle, and sleep hygiene counselling | Device | CPAP |
| Standard care for OSAsleep higiene and dietary counseling | Other | CPAP, Standard care for OSA |
Primary outcome
Structural and functional brain changes
Time frame: at baseline and after 3 months of treatment
2 secondary outcomes
Assessment of the changing of the neuropsychological tests.
Time frame: at baseline and after 3 months of treatment
OSA symptoms (daytime sleepiness and everyday function) and quality of life
Time frame: at baseline and after 3 months of treatment
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 22 Jan 2015.
- Derived from this study: PubMed 26065720Dalmases M, Sole-Padulles C, Torres M, Embid C, Nunez MD, Martinez-Garcia MA, Farre R, Bargallo N, Bartres-Faz D, Montserrat JM. Effect of CPAP on Cognition, Brain Function, and Structure Among Elderly Patients With OSA: A Randomized Pilot Study. Chest. 2015 Nov;148(5):1214-1223. doi: 10.1378/chest.15-0171.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Josep M Montserrat, MD principal investigator
Spanish Research Center for Respiratory Diseases
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing CPAP in people with Sleep Apnea, run by Hospital Clinic of Barcelona 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 4 inclusion and 9 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 22 Jan 2015. 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?
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?
Structural and functional brain changes (time frame: at baseline and after 3 months of treatment). 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 NCT01826032, 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 22 Jan 2015.