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Sleep DeprivationSOMEXNCT02820649

Protective Effects of Exercise Training

A study testing Sleep deprivation in people with Sleep Deprivation, run by Institut de Recherche Biomedicale des Armees.

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

Rationale. Sleep loss is a risk factor for cardiovascular events mediated through endothelial dysfunction. Objective. To determine if 7 weeks of exercise training can limit cardiovascular dysfunction induced by total sleep deprivation (TSD) in healthy young men. Read more about this study

Who is it for?
Ages 18 to 35 years, men onlyHealthy volunteers can take part
Conditions the study is for
Sleep Deprivation
What is being tested?
Sleep deprivation
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
16 participants
Where
No sites listed yet
Study dates
Jun 2015to Mar 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 to 35 years
  • Men only
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Healthy
  • Men
  • 18 - 35 yrs

Who cannot join

  • Consumming 400 mg of caffeine per day,
  • Body mass index (BMI) greater than 30 kg/m²,
  • Taking medication.
  • Excessive daytime somnolence (Epworth Sleepiness Scale >9)
  • Sleep complaints (Pittsburgh Sleep Quality Index >5)
  • Inability to be considered as an intermediate chronotype on the Horne and Ostberg questionnaire (score <31 or >69)
  • Traines subject (Ricci Gagnon questionnaire >35)

About this study

Official title: Protective Effects of Exercise Training on Endothelial Dysfunction Induced by Total Sleep Deprivation in Healthy Subjects

Rationale. Sleep loss is a risk factor for cardiovascular events mediated through endothelial dysfunction.

Objective. To determine if 7 weeks of exercise training can limit cardiovascular dysfunction induced by total sleep deprivation (TSD) in healthy young men.

Methods: 16 subjects will be examined during 40-h TSD, both before and after 7 weeks of interval exercise training. Vasodilatation induced by ACh, insulin and heat (42°C) as well as pulse wave velocity (PWV), blood pressure and heart rate (HR) will be assessed at baseline, during TSD, and after one night of sleep recovery. Biomarkers of endothelial activation, inflammation, and hormones will bemeasured from morning blood samples at 07:00

Being tested
Sleep deprivation
Keywords
Exercise training, Endothelial function
Medical subject headings
Sleep Deprivation

What participants receive

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

  • Sleep deprivationOther

    40 hours of continuous wakefullness

Study groups in NCT02820649
Study groupRoleWhat they receive
Exercise trainingExperimental7 weeks of exercise training
Receives: Other: Sleep deprivation
ControlSham comparatorSedentary group
Receives: Other: Sleep deprivation

What is being measured

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

  1. ACh induced Vasodilation during TSD

    Cutaneous vasodilation (in % Baseline) induced by local application of Acethylcholine

    Measured: Up to 09:00 during sleep deprivation (i.e. after 26 hours of wakefulness)

Secondary outcomes (5)
  1. Insuline Vasodilation

    Cutaneous vasodilation (in % Baseline) induced by local application of insulin

    Measured: Up to 09:00 during the sleep deprivation day and the recovery day

  2. Heat vasodilation

    Cutaneous vasodilation (in % Baseline) induced by local application of heat (42°C)

    Measured: Up to 9:00 during the sleep deprivation day and during the recovery day

  3. Inflammation

    Plasma levels of inflammatory marquers (TNF-alpha, IL1beta...)

    Measured: Up to 7:00 during the sleep deprivation day and during the recovery day.

  4. blood pressure

    Mean, systolic and diastolic blood pressure

    Measured: Every 3 hours during the 40 hours of wakefullness (i.e. total sleep deprivation)

  5. PWV

    Pulse wave velovity evaluated by echography

    Measured: Up to 09:00 during the sleep deprivation day

Timeline

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

  1. First posted1 Jul 2016 (estimated)
  2. Study startJun 2015
  3. Primary completionAug 2015
  4. Study completionMar 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
Prevention
Allocation
Non-randomised
Intervention model
Single group
Masking
None (open label)
Enrolment
16 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02820649
Sponsor's protocol ID
PDH-1-SMO-2-508
Other IDs
2014_A01103-44
Acronym
SOMEX
Status last verified
Jun 2016
First submitted
23 Jun 2016
Last updated
1 Jul 2016
Results posted
No
Data monitoring committee
No
Individual data sharing
No

Publications

  • Sauvet F, Drogou C, Bougard C, Arnal PJ, Dispersyn G, Bourrilhon C, Rabat A, Van Beers P, Gomez-Merino D, Faraut B, Leger D, Chennaoui M. Vascular response to 1 week of sleep restriction in healthy subjects. A metabolic response? Int J Cardiol. 2015;190:246-55. doi: 10.1016/j.ijcard.2015.04.119. Epub 2015 Apr 16.

    PubMed 25932797
  • Arnal PJ, Drogou C, Sauvet F, Regnauld J, Dispersyn G, Faraut B, Millet GY, Leger D, Gomez-Merino D, Chennaoui M. Effect of Sleep Extension on the Subsequent Testosterone, Cortisol and Prolactin Responses to Total Sleep Deprivation and Recovery. J Neuroendocrinol. 2016 Feb;28(2):12346. doi: 10.1111/jne.12346.

    PubMed 26647769
  • Arnal PJ, Sauvet F, Leger D, van Beers P, Bayon V, Bougard C, Rabat A, Millet GY, Chennaoui M. Benefits of Sleep Extension on Sustained Attention and Sleep Pressure Before and During Total Sleep Deprivation and Recovery. Sleep. 2015 Dec 1;38(12):1935-43. doi: 10.5665/sleep.5244.

    PubMed 26194565
  • Sauvet F, Arnal PJ, Tardo-Dino PE, Drogou C, Van Beers P, Bougard C, Rabat A, Dispersyn G, Malgoyre A, Leger D, Gomez-Merino D, Chennaoui M. Protective effects of exercise training on endothelial dysfunction induced by total sleep deprivation in healthy subjects. Int J Cardiol. 2017 Apr 1;232:76-85. doi: 10.1016/j.ijcard.2017.01.049. Epub 2017 Jan 5.

    PubMed 28089456

Questions about this trial

What is this clinical trial studying?

A study testing Sleep deprivation in people with Sleep Deprivation, run by Institut de Recherche Biomedicale des Armees.

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 3 inclusion and 7 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 1 Jul 2016. Status can change between updates, so confirm with the study contact before making plans.

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?

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?

ACh induced Vasodilation during TSD (time frame: Up to 09:00 during sleep deprivation (i.e. after 26 hours of wakefulness)). 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 NCT02820649, which also lists 4 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 1 Jul 2016.

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