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Hypohidrotic Ectodermal DysplasiaDEH-SomnoNCT05378932

Impact of Dysregulation of Core Body Temperature on Sleep in Patients With Hypohidrotic Ectodermal Dysplasia

A study testing Actigraphy, Recording of proximal and distal skin temperature and temperature of the bedroom and Questionnaires assessing subjective sleep quality in people with Hypohidrotic Ectodermal Dysplasia, run by Assistance Publique - Hôpitaux de Paris at 1 site in France.

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 aim of the study is to compare sleep efficiency by means of actigraphy in patients with hypohidrotic ectodermal dysplasia with healthy controls. Sleep efficiency, assessed on actigraphy, sleep architecture assessed on on polysomnography, body temperature and urine melatonin levels will be compared between the… Read more about this study

Who is it for?
Ages 3 to 40 years, men only
Conditions the study is for
Hypohidrotic Ectodermal Dysplasia
What is being tested?
Actigraphy, Recording of proximal and distal skin temperature and temperature of the bedroom and Questionnaires assessing subjective sleep quality
Could I receive a placebo?
No, everyone receives an active treatment
How many people
22 participants
Where
1 siteFrance
Study dates
10 Jun 2022to 16 Jan 2024
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 3 to 40 years
  • Men only
  • No healthy volunteers
  • Child, Adult

Who may be able to join

  • Male patients with molecularly confirmed hypohidrotic ectodermal dysplasia (HED), children over 3 years of age and adults under 40 years of age. Patients will be separated into 3 age groups (3 to 6 years old, 7 to 12 years old, 13 years old and over)
  • Healthy controls (control subjects), of same age group, recruited if possible within the patient's direct entourage
  • Written informed consent

Who cannot join

  • No social insurance
  • Presence of an associated pathology known to alter the quality of sleep (neurological, cardiac, psychiatric, severe sleep apnea syndrome)
  • Presence of an associated pathology causing significant psychomotor retardation, behavioral disorders with impossible cooperation or significant agitation
  • Treatment with psychotropic drugs or drugs stimulating vigilance
  • Patient under guardianship/curatorship

Trial locations and contacts

1 site in 1 country.

France1 site
  • Hôpital Necker-Enfants Malades

    Paris, 75015

Other trials in France

About this study

The aim of the study is to compare sleep efficiency by means of actigraphy in patients with hypohidrotic ectodermal dysplasia with healthy controls.

Sleep efficiency, assessed on actigraphy, sleep architecture assessed on on polysomnography, body temperature and urine melatonin levels will be compared between the patients with hypohidrotic ectodermal dysplasia with healthy controls.

Read the detailed description

Ectodermal dysplasias (ED) are rare genetic diseases characterized by a developmental abnormality of at least two of the following ectodermal derivatives: teeth, nails, pilosity and glands. In the hypohidrotic form (HED), dental abnormalities (oligodontia, hypodontia) and the decrease or even the absence of sweating are predominant. The lack of sweating, and therefore of the regulation of core body temperature, can impact the daily lives of patients as soon as the ambient temperature exceeds 23-24 ° C.

Core body temperature is one of the players of the internal biological clock that regulates sleep. Indeed, sleep is induced by a decrease in core body temperature concomitant with a peak of melatonin secretion. Consequently, the absence of sweating in HED and therefore the inability to lower core body temperature may explain the poor sleep quality reported by patients. However, sleep disturbances have not been analyzed in the literature nor the relationship between sleep quality and core body temperature in patients with HED.

The sleep of patients with HED who are followed at the national reference center for rare diseases of the skin and mucous membranes of genetic origin (MAGEC center) of the Necker-Enfants Malades hospital will be evaluated and compared to sleep of healthy controls screened within in the patient's family.

The main objective of the study is to compare the sleep efficiency evaluated on actigraphy between HED patients and healthy controls.

Sleep efficiency will be measured by means of actigraphy during 10 days and one overnight polysomnography, together with continuous recording of proximal and distal skin temperature during 10 days, one-off measurement of sweating by a sweat test and urine melatonin assay over 24 hours.

Subjective sleep quality will also be assessed by means of questionnaires in patients and healthy controls. Finally, patients with HED will also have a standardized psychological and neuropsychological assessment.

Being tested
Actigraphy, Recording of proximal and distal skin temperature and temperature of the bedroom, Questionnaires assessing subjective sleep quality, Sweat test, Urine melatonin assay
Keywords
Hypohidrotic ectodermal dysplasia, Sleep efficiency, Circadian biological clock, Melatonin, Actigraphy, Polysomnography (PSG)
Medical subject headings
Ectodermal Dysplasia 1, Anhidrotic

What participants receive

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

  • ActigraphyOther

    Sleep efficiency recording at home by means of actigraphy during 10 consecutive days.

  • Recording of proximal and distal skin temperature and temperature of the bedroomOther

    Recording of proximal and distal skin temperature at home by data loggers placed on the skin during 10 consecutive days.

    Recording of temperature of the bedroom by a data logger during 10 consecutive days.

  • Questionnaires assessing subjective sleep qualityOther

    One-off questionnaires assessing subjective sleep quality. The Pittsburgh Sleep Quality Index (PSQI) evaluates sleep quality with questions about sleep latency, sleep duration, habitual sleep efficiency, sleep disturbances, use of sleep medications, and daytime dysfunction during the last month.

    The Epworth Sleepiness Scale evaluates daytime sleepiness and comprises 8 items (situations) during which individuals assess how likely they would fall asleep.

  • Sweat testOther

    One-off measurement of sweating by a sweat test at the hospital.

  • Urine melatonin assayOther

    Two urine melatonin at home during 24 hours, one during a week day and one during the weekend

  • PolysomnographyOther

    Sleep architecture assessed by a polysomnography during one night at home.

  • Standardized psychological and neuropsychological assessmentOther

    One-off psychological and neuropsychological assessment of patients with HED during a hospital visit

Study groups in NCT05378932
Study groupRoleWhat they receive
Hypohidrotic ectodermal dysplasiaExperimentalPatients aged 3 to 40 years old with hypohidrotic ectodermal dysplasia.
Receives: Other: Actigraphy; Other: Recording of proximal and distal skin temperature and temperature of the bedroom; Other: Questionnaires assessing subjective sleep quality; Other: Sweat test; Other: Urine melatonin assay; Other: Polysomnography; Other: Standardized psychological and neuropsychological assessment
Healthy controlsActive comparatorHealthy controls aged 3 to 40 years old without hypohidrotic ectodermal dysplasia.
Receives: Other: Actigraphy; Other: Recording of proximal and distal skin temperature and temperature of the bedroom; Other: Questionnaires assessing subjective sleep quality; Other: Sweat test; Other: Urine melatonin assay; Other: Polysomnography

What is being measured

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

  1. Sleep efficiency on actigraphy

    Comparison of sleep efficiency evaluated on actigraphy between HED patients and healthy controls.

    Measured: 10 days

  2. Total sleep time on actigraphy

    Comparison of total sleep time evaluated on actigraphy between HED patients and healthy controls.

    Measured: 10 days

  3. Awake after sleep onset on actigraphy

    Comparison of wake after sleep onset evaluated on actigraphy between HED patients and healthy controls.

    Measured: 10 days

  4. Sleep fragmentation index

    Comparison of sleep fragmentation index evaluated on actigraphy between HED patients and healthy controls.

    Measured: 10 days

Secondary outcomes (23)
  1. Melatonin secretion cycle

    Comparison of the melatonin secretion cycle between DEH patients and healthy controls using the urinary quantitative assay of 6-sulfatoxymelatonin by ELISA method.

    Measured: 48 hours

  2. Total sleep time on polysomnography

    Comparison of total sleep time evaluated on polysomnography between HED patients and healthy controls.

    Measured: One night

  3. Sleep onset latency

    Comparison of sleep onset latency evaluated on polysomnography between HED patients and healthy controls.

    Measured: One night

  4. Sleep efficiency on polysomnography

    Comparison of sleep efficiency evaluated on polysomnography between HED patients and healthy controls.

    Measured: One night

  5. Awake after sleep onset on polysomnography

    Comparison of wake after sleep onset evaluated on polysomnography between HED patients and healthy controls.

    Measured: One night

  6. Micro-arousal index

    Comparison of micro-arousal index evaluated on polysomnography between HED patients and healthy controls.

    Measured: One night

  7. Percentage of sleep stages

    Comparison of the percentage of sleep stages evaluated on polysomnography between HED patients and healthy controls.

    Measured: One night

  8. Pittsburgh Sleep Quality Index

    Subjective sleep quality. Pittsburgh Sleep Quality Index (PSQI) to assess sleep quality. Normal value <5.

    The Epworth Sleepiness Scale to assess daytime sleepiness (normal value <8)

    Measured: Day 0

  9. Epworth Sleepiness Scale

    Subjective sleep quality. The Epworth Sleepiness Scale to assess daytime sleepiness. Normal value <8.

    The Epworth Sleepiness Scale to assess daytime sleepiness (normal value <8)

    Measured: Day 0

  10. WPPSI-IV intellectual ability test

    Neuropsychologic tests in patients with hypohidrotic ectodermal dysplasia using the WPPSI-IV. Mean normal score is 100 ± 15. Abnormal for a score <70.

    Measured: Day 0

  11. WISC-V intellectual ability tests

    Neuropsychologic tests in patients with hypohidrotic ectodermal dysplasia using the WISC-V. Mean normal score is 100 ± 15. Abnormal for a score <70.

    Measured: Day 0

  12. WAIS-IV intellectual ability tests

    Neuropsychologic tests in patients with hypohidrotic ectodermal dysplasia using the WAIS-IV. Mean normal score is 100 ± 15. Abnormal for a score <70.

    Measured: Day 0

  13. TAP attention test

    Attention test in patients with hypohidrotic ectodermal dysplasia using the TAP test. Mean normal value of T-score is 50 ± 1. Abnormal for a T-score <30.

    Measured: Day 0

  14. NEPSY-II attention test

    Attention test in patients with hypohidrotic ectodermal dysplasia using the NEPSY-II test. Mean normal value =10 (SD3). Abnormal for a score <4).

    Measured: Day 0

  15. Conners 3 attention questionnaire

    Attention questionnaire in patients with hypohidrotic ectodermal dysplasia using Conners 3 questionnaire. Mean normal value of T-score is 50 ± 10), abnormal T-score > 69.

    Measured: Day 0

  16. NEPSY-II for executive function test

    Executive function evaluation in patients with hypohidrotic ectodermal dysplasia using the NEPSY-II Mean normal score is 10 ± 3, abnormal when score <4.

    Measured: Day 0

  17. Trail Making for executive function test

    Executive function evaluation in patients with hypohidrotic ectodermal dysplasia using the Trail Making test. Mean normal score is 10 ± 3, abnormal when score <4.

    Measured: Day 0

  18. TAP subtests for executive function

    Executive function evaluation in patients with hypohidrotic ectodermal dysplasia using the TAP subtests. Mean normal value of T-score TAP subtests is 50 ± 10, abnormal T-score is <30.

    Measured: Day 0

  19. BRIEF and BRIEF-P questionnaire for executive function

    Executive function questionnaire in patients with hypohidrotic ectodermal dysplasia using BRIEF and BRIEF-P questionnaire. Mean normal value of T-score is 50 ± 10, abnormal T-score is > 65.

    Measured: Day 0

  20. Correlation between skin temperature and sleep efficiency and architecture

    Correlation between skin temperature and sleep efficiency in patients with hypohidrotic ectodermal dysplasia and healthy controls.

    Sleep efficiency is evaluated by actigraphy results and architecture by polysomnography results.

    Skin temperature is evaluated by a data logger placed on the skin.

    Measured: 10 days

  21. Correlation between skin temperature and sleep questionnaires scores

    Correlation between skin temperature and sleep quality questionnaires scores in patients with hypohidrotic ectodermal dysplasia and healthy controls.

    Measured: 10 days

  22. Correlation between skin temperature and melatonin secretion

    Correlation between skin temperature and melatonin secretion cycle in patients with hypohidrotic ectodermal dysplasia and in control subjects.

    Measured: 10 days

  23. Correlation between sleep efficiency and neuropsychological test scores

    Correlation between sleep efficiency evaluated on actigraphy and neuropsychological test scores in patients with hypohidrotic ectodermal dysplasia.

    Measured: 10 days

Timeline

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

  1. First posted18 May 2022
  2. Study start10 Jun 2022
  3. Primary completion16 Jan 2024
  4. Study completion16 Jan 2024

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
Diagnosis
Allocation
Non-randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
22 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05378932
Sponsor's protocol ID
APHP220045
Other IDs
2021-A02736-35
Acronym
DEH-Somno
Status last verified
Sep 2025
First submitted
28 Mar 2022
Last updated
12 Sep 2025
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A study testing Actigraphy, Recording of proximal and distal skin temperature and temperature of the bedroom and Questionnaires assessing subjective sleep quality in people with Hypohidrotic Ectodermal Dysplasia, run by Assistance Publique - Hôpitaux de Paris at 1 site in France.

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 5 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 12 Sep 2025. 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 France. 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 efficiency on actigraphy (time frame: 10 days). The study lists 4 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 12 Sep 2025.

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