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StrokeNCT02111408

Stroke - Sleep Disorders, Dysfunction of the Autonomic Nervous System and Depression

An observational study of Stroke, run by Helle Klingenberg Iversen, MD, DmSc at 1 site in Denmark.

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 purpose of this study is to investigate sleep disordered breathing, autonomic dysfunction, and post stroke depression in acute and chronic stroke patients. Furthermore, to explore the interaction between these comorbidities, and their relation to stroke aetiology. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Stroke
How many people
114 participants
Where
1 siteDenmark
Study dates
Mar 2014to Mar 2022
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: The study population is recruited among patients admitted at the acute stroke unit at Glostrup university hospital.

Who may be able to join

  • Clinical stroke either ischaemic or haemorrhagic

Who cannot join

  • Transitory ischemic attac
  • Congenital or acquired brain disease, other than stroke
  • Dementia
  • Mental retardation
  • Fatal stroke or severe comorbidities with short expected life
  • Pregnancy or breastfeeding
  • Altered consciousness e.g. delirium or status epilepticus
  • Other cause of the patient, according to the investigator believes, can not complete the study

Trial locations and contacts

1 site in 1 country.

Denmark1 site
  • Department of clinical stroke research, department of neurology, Glostrup Hospital

    Glostrup Municipality, 2600

Other trials in Denmark

About this study

The purpose of this study is to investigate sleep disordered breathing, autonomic dysfunction, and post stroke depression in acute and chronic stroke patients. Furthermore, to explore the interaction between these comorbidities, and their relation to stroke aetiology.

Read the detailed description

Up to fifty percent of stroke patients suffer less noticeable comorbidities after the acute phase of a stroke and often the rest of their life. It concerns sleep disordered breathing (SDB), post stroke depression (PSD), and dysfunction of the autonomic nervous system. These comorbidities are seldom recognized, but are associated with a poorer outcome after stroke, reduced quality of life as well as an increased risk of new vascular events.

Little is known about the course of the comorbidities, the relationship between the mentioned diseases or which patients are more commonly affected.

The investigators will investigate the following hypotheses, and assess the results compared to the stroke aetiology:

  1. Stroke patients with SDB have an impaired autonomic function
  2. Stroke patients with SDB have an increased risk of PSD
  3. Stroke patients with autonomic dysfunction have an increased risk of PSD

The investigators will examine stroke patients for signs of sleep disordered breathing, autonomic dysfunction and depression, both in the acute phase (days), in the chronic phase (months) and the very chronic state (years). Thereby the investigators can map the comorbidities course over time. At the same time the patients will be tested for peripheral small and large artery disease as well as MRI will be used to investigate sign of cerebral small vessel disease.

Based on power calculations 335 individuals will be enrolled in order to satisfy the project requirements.

Conditions
Stroke
Keywords
Sleep apnea syndromes, Autonomic nervous system +/- disease, Depression, Peripheral arterial disease
Medical subject headings
Stroke, Sleep Apnea Syndromes, Depression, Peripheral Arterial Disease

What participants receive

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

Study groups in NCT02111408
Study groupRoleWhat they receive
Acute strokeNo interventions. Only tests for depression, sleepapnea and autonomic dysfunction.

What is being measured

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

  1. Sleep disordered breathing at any time after stroke.

    The test for sleep disordered breathing will be performed within 7 days from stroke onset and after 6 month and five years.

    Mild sleep apnea if AHI between 5 and 15, moderate sleep apnea if AHI between 15 and 30 and severe sleep apnea if AHI above 30. Subdivided into obstructive, central or mixed.

    Measured: six month after stroke

  2. Autonomic dysfunction at any time after stroke.

    The test for autonomic dysfunction will be performed within 7 days from stroke onset and after 6 month and five years.

    Abnormal result of the valsalva manoeuvre, deep breathing, active standing or tilt table test. Improvement or worsening of the parameters like HRV, BRS and CO during the study period.

    Measured: six month after the stroke

  3. Depression at any time after stroke

    The test for depression will be performed within 7 days from stroke onset and after 6 month and five years.

    Mild, moderate or severe depression according to HAM-D6, MDI or HADS

    Measured: six month after the stroke

Secondary outcomes (1)
  1. Peripheral artery disease at any time after stroke

    The tests will be performed within 7 days from stroke onset and after 6 month and five years.

    Stenosis of the carotid artery, abnormal ankle-brachial index or endothelial dysfunction.

    Measured: six month after the stroke

Timeline

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

  1. First posted11 Apr 2014 (estimated)
  2. Study startMar 2014
  3. Primary completionFeb 2017
  4. Study completionMar 2022

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
114 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02111408
Sponsor's protocol ID
VEK: H-2-3013-091
Other IDs
H-2-3013-091
Status last verified
Mar 2022
First submitted
3 Apr 2014
Last updated
29 Mar 2022
Results posted
No
Data monitoring committee
No
Individual data sharing
Undecided

Publications

  • Simonsen SA, Andersen AV, West AS, Wolfram F, Jennum P, Iversen HK. Sleep-disordered breathing and cerebral small vessel disease-acute and 6 months after ischemic stroke. Sleep Breath. 2022 Sep;26(3):1107-1113. doi: 10.1007/s11325-021-02482-1. Epub 2021 Sep 2.

    PubMed 34476728

Questions about this trial

What is this clinical trial studying?

An observational study of Stroke, run by Helle Klingenberg Iversen, MD, DmSc at 1 site in Denmark.

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 8 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 29 Mar 2022. 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 Denmark. 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?

Sleep disordered breathing at any time after stroke. (time frame: six month after stroke). The study lists 3 primary outcomes in all. 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 NCT02111408, 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 29 Mar 2022.

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