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SleepNCT02075723

Effect of Sleep Restriction on Metabolic Disturbances Caused by Overfeeding

A study testing Overfeeding (130 % of energy requirements ) and Sleep restriction (4 hours per night) in people with Sleep, run by University of Lausanne Hospitals at 1 site in Switzerland.

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 The sponsor has not verified this record for over two years, so it may be out of date.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

The purpose of this study is to determine if sleep restriction provokes an increase in risk factors for metabolic diseases, such as elevation of ectopic fat and decreased sensitivity to insulin. Read more about this study

Who is it for?
Ages 18 to 40 yearsHealthy volunteers can take part
Conditions the study is for
Sleep
What is being tested?
Overfeeding (130 % of energy requirements ) and Sleep restriction (4 hours per night)
Could I receive a placebo?
No, everyone receives an active treatment
How many people
9 participants
Where
1 siteSwitzerland
Study dates
Feb 2014to Dec 2015
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 40 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Good general health
  • BMI 18.5-25 kg/m2
  • Blood pressure at rest less than 140/ 90 mmHg .
  • Physical activity level: sedentary or light (< 3 hours of sport per week )
  • Lack of sleep pathology ( including sleep apnea and insomnia )
  • Regular sleep-wake cycles
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  • Average duration of sleep over 7h
  • Circadian Typology by Horne \& Ostberg questionnaire ≥ 30 and ≤ 70
  • Score questionnaire Pittsburgh Sleep Quality Index ≤ 5
  • Screening polysomnography showing sleep efficiency ≥ 85 % and apnea- hypopnea index and periodic leg movements < 15 / h .

Who cannot join

  • Current smoking
  • Family history of diabetes
  • History of sleep disorders
  • Circadian Typology by Horne \& Ostberg [ 16-30 ] or [ 70-86 ]
  • Score questionnaire Pittsburgh Sleep Quality Inde x> 5
  • Polysomnography indicating a sleep efficiency <85% and apnea-hypopnea index and periodic leg movements > 15 / h.
Show all 21Show fewer
  • Consumption of more than 3 coffees a day
  • Drinking alcool (more than 10g /d)
  • Use of Drugs
  • Medication
  • Night work by shifts
  • Average duration of sleep less than 7 hours per night
  • Occupational Risks in sleep restriction conditions: e.g. professional drivers
  • Special Diet ( vegetarianism, veganism , etc. )
  • Change in weight of more than 3 kg in the last 3 months
  • Consumption of more than 3 dl sugar-sweetened beverages per day ( sodas, energy drinks , fruit juice , flavored milk sugar )
  • Contraindication for magnetic resonance imaging ( pacemaker , previous eye surgery, the presence of metal implant or foreign body, Claustrophobia, etc. )
  • For women: pregnancy (current or desired)
  • Hemoglobin level < 13.5g/dl for men and < 12.5g/dl for women
  • Ferritin level < 50ug / l
  • Blood donation in the last 8 weeks

Trial locations and contacts

1 site in 1 country.

Switzerland1 site, 1 recruiting
  • Center for Investigation and Reseaarch on Sleep and Physiology Department, University Hospital

    Lausanne, Canton of Vaud, 1011

    Virgile Lecoultre, PhD, 0041 21 692 55 70, virgile.lecoultre@unil.ch

    Recruiting

Other trials in Switzerland

About this study

The purpose of this study is to determine if sleep restriction provokes an increase in risk factors for metabolic diseases, such as elevation of ectopic fat and decreased sensitivity to insulin. We propose to evaluate the effect of sleep restriction in a model of metabolic challenge (overfeeding) caricaturing the conditions of modern societies everyday life .

Read the detailed description

General hypothesis :

In overfeeding condition, the stress response generated by partial sleep restriction of six days will induce an accumulation of fat in the liver and a decreased insulin sensitivity of adipose tissue , liver and muscle, more pronounced that in overfeeding condition only, provoked by a deregulation of the nocturnal lipolysis .

Specific goals :

Purpose 1 : To measure the accumulation of fat in the liver (measured by nuclear magnetic resonance ) and the tissue insulin sensitivity ( measured by a test meal ) in response to a sleep restriction in overfeeding condition .

Hypothesis 1: In overfeeding condition (130 % of energy requirements ) , hepatic lipid accumulation will be higher after 6 days of sleep restriction (4 hours per night) compared to a control condition (8 hours of sleep per night ) . Decreased sensitivity to insulin in the liver, adipose tissue and the associated muscle will be associated at this ectopic fat accumulation.

Purpose 2 : To determine the alteration of lipolysis in response to sleep restriction in overfeeding condition.

Hypothesis 2: In overfeeding condition, sleep restriction will increase the concentrations of circulating fatty acids and glycerol in relation to condition of normal sleep.

Conditions
Sleep
Being tested
Overfeeding (130 % of energy requirements ), Sleep restriction (4 hours per night)

What participants receive

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

  • Overfeeding (130 % of energy requirements )Dietary supplement

    Overfeeding (130 % of energy requirements )

  • Sleep restriction (4 hours per night)Behavioural

    Sleep restriction (4 hours per night)

Study groups in NCT02075723
Study groupRoleWhat they receive
Overfeeding + sleep restrictionExperimentaloverfeeding condition (130 % of energy requirements ) + 6 days of sleep restriction (4 hours per night)
Receives: Dietary Supplement: Overfeeding (130 % of energy requirements ); Behavioral: Sleep restriction (4 hours per night)
Overfeeding + normal sleep durationExperimentaloverfeeding condition (130 % of energy requirements ) + 6 days of normal sleep duration (8 hours per night)
Receives: Dietary Supplement: Overfeeding (130 % of energy requirements )

What is being measured

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

  1. Accumulation of fat in the liver (measured by nuclear magnetic resonance ) and the tissue insulin sensitivity ( measured by a test meal ) in response to a sleep restriction in overfeeding condition .

    Measured: After 6 days of sleep restriction (4 h/day) vs. normal sleep (8 h/day)

Secondary outcomes (1)
  1. Blood concentrations of circulating fatty acids and glycerol

    Measured: After 6 days of sleep restriction (4 h/day) vs. normal sleep (8 h/day)

Timeline

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

  1. First posted3 Mar 2014 (estimated)
  2. Study startFeb 2014
  3. Primary completionDec 2015 (estimated)
  4. Study completionDec 2015 (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
Basic science
Allocation
Non-randomised
Intervention model
Crossover
Masking
None (open label)
Enrolment
9 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02075723
Sponsor's protocol ID
SleepDep 02/14
Status last verified
May 2015
First submitted
27 Feb 2014
Last updated
27 May 2015
Results posted
No
Data monitoring committee
Yes

Publications

  • Cros J, Pianezzi E, Rosset R, Egli L, Schneiter P, Cornette F, Pouymayou B, Heinzer R, Tappy L, Kreis R, Boesch C, Haba-Rubio J, Lecoultre V. Impact of sleep restriction on metabolic outcomes induced by overfeeding: a randomized controlled trial in healthy individuals. Am J Clin Nutr. 2019 Jan 1;109(1):17-28. doi: 10.1093/ajcn/nqy215.

    PubMed 30615104

Questions about this trial

What is this clinical trial studying?

A study testing Overfeeding (130 % of energy requirements ) and Sleep restriction (4 hours per night) in people with Sleep, run by University of Lausanne Hospitals at 1 site in Switzerland.

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 10 inclusion and 21 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 27 May 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 Switzerland. 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?

Each site lists its own contact: choose the nearest one under Trial locations. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Accumulation of fat in the liver (measured by nuclear magnetic resonance ) and the tissue insulin sensitivity ( measured by a test meal ) in response to a sleep restriction in overfeeding condition . (time frame: After 6 days of sleep restriction (4 h/day) vs. normal sleep (8 h/day)). 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 NCT02075723, 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 27 May 2015.

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