Sleep DurationMore2SleepNCT06341179
Effect of Sleep Extension on Body Weight and Learning in Children (More2Sleep)
A study testing Sleep extension in people with Sleep Duration and Child Obesity, run by University of Copenhagen at 3 sites in Denmark.
Trial summary
More2Sleep is a randomized, controlled, parallel trial with two groups (sleep extension vs control) including 142 school-aged children (6-12 years) who have a BMI above average, defined as age- and sex-specific BMI Z-score above zero using WHO reference standards, and habitually sleep for ≤ 9 h/night. Read more about this study
- Who is it for?
- Ages 6 to 12 yearsHealthy volunteers can take part
- Conditions the study is for
- Sleep Duration, Child Obesity, Child Development
- What is being tested?
- Sleep extension
- Type of treatment
- Lifestyle or therapy programme
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 142 participants
- Where
- 3 sitesDenmark
- Study dates
- 13 Aug 2024to 31 Dec 2028
- Phase
- Interventional
- Are there results?
- Not yet: the study is under way
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 6 to 12 years
- All sexes
- Healthy volunteers accepted
- Child
Who may be able to join
- Age: 6-12 years old (inclusive range).
- Weight status: having a BMI above average, defined as an age- and sex-specific BMI Z-score above zero using reference standards from the WHO.
- Sleep duration: sleeping ≤9 h/night on the basis of sleep diaries filled in by the children's parents, based on recommendations by the American Academy of Sleep Medicine and the Sleep Health Foundation.
Who cannot join
- Any genetic, neurological, endocrinological or psychiatric condition that affects growth, metabolism, eating behaviors, cognitive function, or body weight (for example: dwarfism, epilepsy, attention deficit hyperactivity disorder, head trauma, β-thalassemia, hypothyroid-ism, hyperthyroidism, type I diabetes).
- Any sleep-related disorder (for example: obstructive sleep apnea, parasomnias, narcolepsy, restless leg syndrome).
- Regular use of prescribed or over-the-counter medications that influence study outcomes.
- Irregular school schedule.
- If a child's parents live separately, the child is allowed to sleep at both households. How-ever, if one of the parents does not wish to carry out the sleep intervention and follow given instructions, then the child should only sleep at their household Friday, Saturday and/or Sunday night.
- In the circumstance where the child does not speak or understand Danish, the child's parents do not have to speak or understand Danish, as long as both parties can speak and understand English.
- Participation in other research studies.
- Metal implants and claustrophobia (only for substudy-II).
Trial locations and contacts
3 sites in 1 country. Contact the study team or a site near you to ask about taking part.
Denmark3 sites, 3 recruiting
- Recruiting
University of Copenhagen
Copenhagen, 1958
Faidon Magkos, PhD, +45 35 33 36 71, fma@nexs.ku.dk
Eva Leedo-Townend, MSc, +45 35 33 35 68, elt@nexs.ku.dk
- Recruiting
University of Copenhagen
Copenhagen, 2200
Faidon Magkos, PhD, +45 35 33 36 71, fma@nexs.ku.dk
Jesper Lundbye-Jensen, PhD, +45 35 32 73 30, jlundbye@nexs.ku.dk
- Recruiting
Faidon Magkos
Hvidovre, 2650
Faidon Magkos, PhD, +45 35 33 36 71, fma@nexs.ku.dk
Faidon Magkos, PhD
About this study
Official title: A Randomized Controlled Trial of Sleep Extension to Regulate Body Weight and Improve Learning in School-aged Children
More2Sleep is a randomized, controlled, parallel trial with two groups (sleep extension vs control) including 142 school-aged children (6-12 years) who have a BMI above average, defined as age- and sex-specific BMI Z-score above zero using WHO reference standards, and habitually sleep for ≤ 9 h/night. Data will be collected before and after a 3-month sleep extension intervention, and after a 6-month follow-up (at months 0, 3, and 9). The collection of data is mainly related to the main study. However, some optional examinations will be conducted on a first come, first serve basis, consisting of substudy-I (metabolic mechanisms, n=60) and substudy-II (learning mechanisms, n=142).
The primary objective is to assess the effects of sleep extension by ~45 min/night, achieved by going to bed 60-90 min earlier, on adiposity and learning ability in school-aged children who have a BMI for age and sex above average, and sleep less than recommended for their age.
- Conditions
- Sleep Duration, Child Obesity, Child Development, Child Behavior
- Being tested
- Sleep extension
- Keywords
- Sleep duration, Sleep quality, Overweight and Obesity, Energy Intake, Child Development and Behavior, Well-being, Cognitive Function, Learning Ability, Memory
- Medical subject headings
- Pediatric Obesity, Child Behavior, Sleep Initiation and Maintenance Disorders, Overweight, Obesity, Behavior
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Sleep extensionBehavioural
The sleep extension group will receive a behavioral intervention focusing on parents putting their children to bed earlier by 60-90 minutes. Previous studies have found this change in daily sleeping routine to be feasible and to result in 40-45 min more actual sleep. Children and their parents will receive a behavioral intervention consisting of 6 sessions, including both in-person and virtual sessions, which will be scheduled based on the family's availability and to accommodate practicalities, e.g., potential sickness or cancellations. The first two sessions will occur at the beginning of the study. These initial sessions will focus on effective behavioral strategies to enhance sleep time, including goal setting (e.g., bedtimes and wake-up times), problem-solving and preplanning, stimulus control (i.e., sleep hygiene recommendations), and positive reinforcement. Subsequent sessions will be planned with the families to occur regularly during the 12-week intervention.
| Study group | Role | What they receive |
|---|---|---|
| Sleep extension | Experimental | The sleep extension group (n=71) will receive a behavioral intervention focusing on parents putting their children to bed earlier by 60-90 minutes. Parents will be instructed only to alter their children's daily sleeping routine, and not to directly alter their diet and physical activity habits. Children and their parents will receive a behavioral intervention consisting of 6 sessions, including both in-person and virtual sessions, which will be scheduled based on the family's availability and to accommodate practicalities. Receives: Behavioral: Sleep extension |
| Control | No intervention | The control group (n=71) will follow their habitual sleeping schedule. Parents will be instructed not to alter their children's daily sleeping routine, or their diet and physical activity habits. The same number and frequency of meetings (in-person or virtual) and methods of registration of bedtime/wake-up times will be used as in the sleep extension group. These meetings will be educational in nature and focus on general well-being and informing the families about the home registrations of e.g., sleep and dietary intake. |
What is being measured
The primary outcome is the main question the study is designed to answer.
BMI Z-score
BMI (in kg/m^2) will be calculated from weight and height (secondary outcomes), and the age- and sex-specific BMI Z-score (in units of standard deviation from the reference population mean) will be computed using international (WHO) data
Measured: Assessed at months 0, 3 and 9
Learning ability: skill learning
Skill learning ability will be measured as motor memory assessed as 24h retention after skill practice - I.e. total within and between session effect (range: from "low" = 0 to "high" = 100, unitless)
Measured: Assessed at months 0 and 3
Learning ability: Explicit memory
Explicit memory assessed as 24h retention after word list memory encoding - I.e. total within and between session effect. Number of correctly recalled words in a 2-minute standardized task (range: from 0 to 20)
Measured: Assessed at months 0 and 3
Secondary outcomes (26)
Body fat percent
Body fat in % of total body mass (total fat mass divided by total body weight) will be measured by a whole-body dual-energy X-ray absorptiometry (DXA) scan
Measured: Assessed at months 0, 3 and 9
Total fat mass (FM)
Body FM (in grams) will be measured by a whole-body dual-energy X-ray absorptiometry (DXA) scan
Measured: Assessed at months 0, 3 and 9
Total lean mass (LM)
Body LM (in grams) will be measured by a whole-body dual-energy X-ray absorptiometry (DXA) scan
Measured: Assessed at months 0, 3 and 9
Bone mineral content (BMC)
BMC (in grams) will be measured by a whole-body dual-energy X-ray absorptiometry (DXA) scan
Measured: Assessed at months 0, 3 and 9
Bone mineral density (BMD)
Areal BMD (in grams/cm^2) will be measured by a whole-body dual-energy X-ray absorptiometry (DXA) scan
Measured: Assessed at months 0, 3 and 9
Dietary energy intake
Daily energy intake (in kcal/day) will be assessed with a three-day 24-hour recall interview on www.myfood24.org (daily averages will be computed)
Measured: Assessed at months 0, 3 and 9
Dietary protein, carbohydrate, fiber, and fat intakes
Macronutrient intakes (in grams/day) will be assessed with a three-day 24-hour recall interview on www.myfood24.org (daily averages will be computed)
Measured: Assessed at months 0, 3 and 9
Subjective hunger
Subjective level of hunger (range: from "very hungry" = 1 to "not hungry at all" = 5) in the fasting state and at 1 and 2 hours after a standardized breakfast will be measured by using an image-based visual analog scale (VAS)
Measured: Assessed at months 0 and 3
Physical activity (PA) time: total PA and MVPA
The time (in min/day) spent being physically active regardless of intensity (total PA) and the time (in min/day) spent on moderate-to-vigorous-physical-activities (MVPA) will be measured for 7 consecutive days (daily averages will be computed) using a wrist-worn triaxial accelerometer
Measured: Assessed at months 0, 1.5,3 and 9
Resting metabolic rate (RMR)
RMR (in kcal/day) will be measured with indirect calorimetry (canopy mode) the morning after an overnight fast (at least 8 hours)
Measured: Assessed at months 0 and 3
Thermic effect of food (TEF)
TEF (in kcal) will be computed as the incremental area under the curve (above RMR) for postprandial energy expenditure (measured by indirect calorimetry) for 2 hours after consuming a standardized breakfast
Measured: Assessed at months 0 and 3
Weight
Body mass (in kg) will be measured on a digital scale to the nearest 0.1 kg
Measured: Assessed at months 0, 3 and 9
Height
Stature (in cm) will be measured using a wall-mounted stadiometer to the nearest 0.1 cm
Measured: Assessed at months 0, 3 and 9
Total energy expenditure (TEE)
TEE (in kcal/day) will be measured by using the doubly labelled water method (8 urine samples over 2 weeks)
Measured: Assessed at months 0 and 3
Cognitive functions: Sustained attention
Performance in neuropsychological assessment of sustained attention ability assessed as errors during a sustained test procedure, CANTAB test battery.
Measured: Assessed at months 0, 3 and 9
Cognitive functions: Spatial working memory
Performance in neuropsychological assessment of spatial working memory assessed as errors and strategy during the test procedure (Cambridge Neuropsychological Test Automated Battery, Cambridge cognition, UK).
Measured: Assessed at months 0, 3 and 9
Cognitive functions: Inhibitory control
Performance in neuropsychological assessment of inhibitory control assessed as errors during the test procedure (Modified Eriksen Flanker test, Psychology Software Tools, US) and Cambridge Neuropsychological Test Automated Battery, Cambridge cognition, UK)
Measured: Assessed at months 0, 3 and 9
Cognitive functions: Cognitive flexibility
Performance in neuropsychological assessment of cognitive flexibility assessed as errors during the test procedure (Cambridge Neuropsychological Test Automated Battery, Cambridge cognition, UK)
Measured: Assessed at months 0, 3 and 9
School performance: mathematics performance
Mathematics proficiency will be measured by Hogrefe math test
Measured: Assessed at months 0, 3 and 9
School performance: reading comprehension
Danish reading proficiency will be measured by Hogrefe reading comprehension test
Measured: Assessed at months 0, 3 and 9
Neurophysiological Measurement 1 - ERP Amplitude
EEG activity measured as the event-related potential (ERP) amplitude during the modified Eriksen Flanker Test
Measured: Assessed at months 0 and 3
Neurophysiological Measurement 2 - Cortical activity during skill learning
Cortical activity during skill learning will be measured as EEG power
Measured: Assessed at months 0 and 3
Neurophysiological Measurement 3 - Muscle activity during skill learning
Muscle activity during skill learning will be measured as electromyography amplitude
Measured: Assessed at months 0 and 3
Neurophysiological Measurement 4 - corticocortical functional connectivity
Corticocortical functional connectivity will be measured as functional coupling in EEG (scale 0-1)
Measured: Assessed at months 0 and 3
Neurophysiological Measurement 5 - corticomuscular connectivity
Corticomuscular connectivity will be measured as functional coupling between EEG and EMG during skill learning (0-1)
Measured: Assessed at months 0 and 3
Eating window
The parents will be asked to note on a checklist when their children start and finish eating on each registration day to estimate the duration of the daily eating window.
Measured: Assessed at months 0, 3 and 9.
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted2 Apr 2024
- Study start13 Aug 2024
- Primary completion31 Dec 2027 (estimated)
- Study completion31 Dec 2028 (estimated)
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 DurationStudies of the same condition, open and under way.
- More trials run by University of CopenhagenThe 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
- None (open label)
- Enrolment
- 142 participants (estimated)
Sponsor and investigators
- Lead sponsor
- University of Copenhagen
- Sponsor type
- University, hospital or other
- Collaborators
- Novo Nordisk Foundation, Faculty of Health, Medicine and Life Sciences, Maastricht University, Center for Obesity Research & Education, Temple University, Danish Research Centre for Magnetic Resonance, University of Southern Denmark
- Responsible party
- Sponsor
- Investigators
- Faidon Magkos, PhD, Principal investigator, University of Copenhagen, Department of Nutrition, Exercise and Sports
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06341179
- Sponsor's protocol ID
- M2S
- Other IDs
- H-23063352
- Acronym
- More2Sleep
- Status last verified
- Jan 2025
- First submitted
- 10 Aug 2023
- Last updated
- 25 Nov 2025
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Publications
Rasmussen CH, Neesgaard ND, Skriver-Bayer M, Muushardt CS, Leedo-Townend E, Bjorndal JR, Rosenkrans MI, Wulff-Abramsson A, Mejer L, Madsen KS, Johnsen LK, Siebner HR, Debes NM, Hart CN, Plasqui G, Grontved A, Nielsen G, Jennum PJ, Lundbye-Jensen J, Magkos F. Protocol for a randomized controlled trial investigating the effects of sleep extension on body weight and learning in children (More2Sleep). Front Pediatr. 2026 May 11;14:1758117. doi: 10.3389/fped.2026.1758117. eCollection 2026.
PubMed 42199500
Study at a glance
From the registry record, last updated by the sponsor on 25 Nov 2025. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Randomized Controlled Trial of Sleep Extension to Regulate Body Weight and Improve Learning in School-aged Children
- ClinicalTrials.gov ID
- NCT06341179
- Acronym / sponsor ID
- More2Sleep / M2S
- Conditions
- Sleep Duration, Child Obesity, Child Development, Child Behavior
- Keywords
- Sleep duration, Sleep quality, Overweight and Obesity, Energy Intake, Child Development and Behavior, Well-being, Cognitive Function, Learning Ability
- Study type
- Interventional
- Recruitment status
- Recruiting
- Enrolment
- 142 participants (estimated)
- Lead sponsor
- University of CopenhagenUniversity, hospital or other
- Collaborators
- Novo Nordisk Foundation, Faculty of Health, Medicine and Life Sciences, Maastricht University, Center for Obesity Research & Education, Temple University, Danish Research Centre for Magnetic Resonance, University of Southern Denmark
- Study start
- 13 Aug 2024 (actual)
- Primary completion
- 31 Dec 2027 (estimated)
- Study completion
- 31 Dec 2028 (estimated)
- First posted
- 2 Apr 2024 (actual)
- 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.
More2Sleep is a randomized, controlled, parallel trial with two groups (sleep extension vs control) including 142 school-aged children (6-12 years) who have a BMI above average, defined as age- and sex-specific BMI Z-score above zero using WHO reference standards, and habitually sleep for ≤ 9 h/night. Data will be collected before and after a 3-month sleep extension intervention, and after a 6-month follow-up (at months 0, 3, and 9). The collection of data is mainly related to the main study. However, some optional examinations will be conducted on a first come, first serve basis, consisting of substudy-I (metabolic mechanisms, n=60) and substudy-II (learning mechanisms, n=142).
The primary objective is to assess the effects of sleep extension by ~45 min/night, achieved by going to bed 60-90 min earlier, on adiposity and learning ability in school-aged children who have a BMI for age and sex above average, and sleep less than recommended for their age.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Sleep extension | Experimental | Behavioral: Sleep extensionThe sleep extension group (n=71) will receive a behavioral intervention focusing on parents putting their children to bed earlier by 60-90 minutes. Parents will be instructed only to alter their children's daily sleeping routine, and not to directly alter their diet and physical activity habits. Children and their parents will receive a behavioral intervention consisting of 6 sessions, including both in-person and virtual sessions, which will be scheduled based on the family's availability and to accommodate practicalities. |
| Control | No intervention | –The control group (n=71) will follow their habitual sleeping schedule. Parents will be instructed not to alter their children's daily sleeping routine, or their diet and physical activity habits. The same number and frequency of meetings (in-person or virtual) and methods of registration of bedtime/wake-up times will be used as in the sleep extension group. These meetings will be educational in nature and focus on general well-being and informing the families about the home registrations of e.g., sleep and dietary intake. |
Who may qualify
- Ages
- 6 to 12 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Child
Key inclusion criteria (3 listed)
- Age: 6-12 years old (inclusive range).
- Weight status: having a BMI above average, defined as an age- and sex-specific BMI Z-score above zero using reference standards from the WHO.
- Sleep duration: sleeping ≤9 h/night on the basis of sleep diaries filled in by the children's parents, based on recommendations by the American Academy of Sleep Medicine and the Sleep Health Foundation.
Key exclusion criteria (8 listed)
- Any genetic, neurological, endocrinological or psychiatric condition that affects growth, metabolism, eating behaviors, cognitive function, or body weight (for example: dwarfism, epilepsy, attention deficit hyperactivity disorder, head trauma, β-thalassemia, hypothyroid-ism, hyperthyroidism, type I diabetes).
- Any sleep-related disorder (for example: obstructive sleep apnea, parasomnias, narcolepsy, restless leg syndrome).
- Regular use of prescribed or over-the-counter medications that influence study outcomes.
- Irregular school schedule.
- If a child's parents live separately, the child is allowed to sleep at both households. How-ever, if one of the parents does not wish to carry out the sleep intervention and follow given instructions, then the child should only sleep at their household Friday, Saturday and/or Sunday night.
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 |
|---|---|---|
| Sleep extensionThe sleep extension group will receive a behavioral intervention focusing on parents putting their children to bed earlier by 60-90 minutes. Previous studies have found this change in daily sleeping routine to be feasible and to result in 40-45 min more actual sleep. Children and their parents will receive a behavioral intervention consisting of 6 sessions, including both in-person and virtual sessions, which will be scheduled based on the family's availability and to accommodate practicalities, e.g., potential sickness or cancellations. The first two sessions will occur at the beginning of the study. These initial sessions will focus on effective behavioral strategies to enhance sleep time, including goal setting (e.g., bedtimes and wake-up times), problem-solving and preplanning, stimulus control (i.e., sleep hygiene recommendations), and positive reinforcement. Subsequent sessions will be planned with the families to occur regularly during the 12-week intervention. | Behavioural | Sleep extension |
Primary outcome
BMI Z-score
Time frame: Assessed at months 0, 3 and 9
BMI (in kg/m^2) will be calculated from weight and height (secondary outcomes), and the age- and sex-specific BMI Z-score (in units of standard deviation from the reference population mean) will be computed using international (WHO) data
Learning ability: skill learning
Time frame: Assessed at months 0 and 3
Skill learning ability will be measured as motor memory assessed as 24h retention after skill practice - I.e. total within and between session effect (range: from "low" = 0 to "high" = 100, unitless)
Learning ability: Explicit memory
Time frame: Assessed at months 0 and 3
Explicit memory assessed as 24h retention after word list memory encoding - I.e. total within and between session effect. Number of correctly recalled words in a 2-minute standardized task (range: from 0 to 20)
26 secondary outcomes
Body fat percent
Time frame: Assessed at months 0, 3 and 9
Total fat mass (FM)
Time frame: Assessed at months 0, 3 and 9
Total lean mass (LM)
Time frame: Assessed at months 0, 3 and 9
Bone mineral content (BMC)
Time frame: Assessed at months 0, 3 and 9
Bone mineral density (BMD)
Time frame: Assessed at months 0, 3 and 9
Dietary energy intake
Time frame: Assessed at months 0, 3 and 9
Dietary protein, carbohydrate, fiber, and fat intakes
Time frame: Assessed at months 0, 3 and 9
Subjective hunger
Time frame: Assessed at months 0 and 3
Physical activity (PA) time: total PA and MVPA
Time frame: Assessed at months 0, 1.5,3 and 9
Resting metabolic rate (RMR)
Time frame: Assessed at months 0 and 3
Thermic effect of food (TEF)
Time frame: Assessed at months 0 and 3
Weight
Time frame: Assessed at months 0, 3 and 9
Height
Time frame: Assessed at months 0, 3 and 9
Total energy expenditure (TEE)
Time frame: Assessed at months 0 and 3
Cognitive functions: Sustained attention
Time frame: Assessed at months 0, 3 and 9
Cognitive functions: Spatial working memory
Time frame: Assessed at months 0, 3 and 9
Cognitive functions: Inhibitory control
Time frame: Assessed at months 0, 3 and 9
Cognitive functions: Cognitive flexibility
Time frame: Assessed at months 0, 3 and 9
School performance: mathematics performance
Time frame: Assessed at months 0, 3 and 9
School performance: reading comprehension
Time frame: Assessed at months 0, 3 and 9
Neurophysiological Measurement 1 - ERP Amplitude
Time frame: Assessed at months 0 and 3
Neurophysiological Measurement 2 - Cortical activity during skill learning
Time frame: Assessed at months 0 and 3
Neurophysiological Measurement 3 - Muscle activity during skill learning
Time frame: Assessed at months 0 and 3
Neurophysiological Measurement 4 - corticocortical functional connectivity
Time frame: Assessed at months 0 and 3
Neurophysiological Measurement 5 - corticomuscular connectivity
Time frame: Assessed at months 0 and 3
Eating window
Time frame: Assessed at months 0, 3 and 9.
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 25 Nov 2025.
- Derived from this study: PubMed 42199500Rasmussen CH, Neesgaard ND, Skriver-Bayer M, Muushardt CS, Leedo-Townend E, Bjorndal JR, Rosenkrans MI, Wulff-Abramsson A, Mejer L, Madsen KS, Johnsen LK, Siebner HR, Debes NM, Hart CN, Plasqui G, Grontved A, Nielsen G, Jennum PJ, Lundbye-Jensen J, Magkos F. Protocol for a randomized controlled trial investigating the effects of sleep extension on body weight and learning in children (More2Sleep). Front Pediatr. 2026 May 11;14:1758117. doi: 10.3389/fped.2026.1758117. eCollection 2026.
- Individual participant dataSharing planned: No
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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.
Faidon Magkos, PhD principal investigator
University of Copenhagen, Department of Nutrition, Exercise and Sports
3 sites in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Sleep extension in people with Sleep Duration and Child Obesity, run by University of Copenhagen at 3 sites 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 3 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: looking for participants now, as of the sponsor's last update on 25 Nov 2025. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 3 sites 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?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact Faidon Magkos, PhD (+45 35 33 36 71, fma@nexs.ku.dk), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
BMI Z-score (time frame: Assessed at months 0, 3 and 9). 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 NCT06341179, 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 25 Nov 2025.