NCT07423988 Evaluation of Changes in Sleep Efficiency Among PIC DU MIDI Staff Between Nights Spent at Home and Nights Spent in the Workplace Under High Altitude Conditions
| NCT ID | NCT07423988 |
| Status | Recruiting |
| Phase | — |
| Sponsor | University Hospital, Toulouse |
| Condition | Sleep Disorder (Disorder) |
| Study Type | INTERVENTIONAL |
| Enrollment | 32 participants |
| Start Date | 2026-03-23 |
| Primary Completion | 2027-02-01 |
Eligibility & Interventions
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What to Expect as a Participant
You will actively receive the study intervention — which may be a drug, biologic, device, or procedure.
This trial targets 32 participants in total. It began in 2026-03-23 with a primary completion date of 2027-02-01.
⚠ This information is for research awareness only. Always consult your physician before joining any clinical trial. Participation is voluntary and you may withdraw at any time.
Brief Summary
Sleep organization and cardiorespiratory parameters are disrupted in extreme conditions such as high altitude. The pathophysiology of medical problems related to acute high-altitude exposure is partially understood, but sleep quality indicators are very rarely measured under these conditions. This lack of information is even more pronounced among employees subjected to cyclical exposure to high-altitude hypoxic stress, as is the case for the employees at the Pic du Midi. These 32 employees regularly report to their occupational physician difficulties in managing their sleep disorders, struggling to distinguish symptoms from objective changes in their sleep cycles. Among them, 13 are on call at the summit of the Pic du Midi (2,877 m), while 19 work there during the day and return home to a lower altitude at night to sleep. The investigators also wish to measure structural changes in sleep and its cardiorespiratory parameters using polysomnography in these 13 employees, comparing nights spent at home at normal altitude with those spent at the summit of the Pic du Midi. These changes will also be compared to those of a group of 19 employees who do not sleep at high altitude..
Eligibility Criteria
Inclusion Criteria: Group "with on-call night at high altitude at the Pic du Midi": * Employed at the Pic du Midi for at least one month * Working nights at high altitude (at the Pic du Midi, altitude of 2877m) as part of their professional activity * Person affiliated with or covered by a social security scheme * Free, informed, and written consent signed by the participant and the investigator Night group "without on-call night at high altitude": * Employed at the Pic du Midi for at least one month * Not working nights at high altitude (at the Pic du Midi, altitude of 2877m) as part of their professional activity * Person affiliated with or covered by a social security scheme social * Free, informed and written consent signed by the participant and the investigator Exclusion Criteria: * For all participants: * History of cardiovascular disease * Use of cardiovascular/psychotropic medication * Participant under legal guardianship or other protective regime (guardianship, curatorship) * Pregnant or breastfeeding woman * French language proficiency insufficient to complete the questionnaires
Contact & Investigator
Frequently Asked Questions
Who can join the NCT07423988 clinical trial?
This trial is open to participants of all sexes, aged 18 Years or older, up to 65 Years, studying Sleep Disorder (Disorder). Full inclusion and exclusion criteria are listed in the Eligibility Criteria section. Always confirm your eligibility with the research team before applying.
Is NCT07423988 currently recruiting?
Yes, NCT07423988 is actively recruiting participants. Contact the research team at debs.r@chu-toulouse.fr for enrollment information.
Where is the NCT07423988 trial being conducted?
This trial is being conducted at Toulouse, France.
Who is sponsoring the NCT07423988 clinical trial?
NCT07423988 is sponsored by University Hospital, Toulouse. The trial plans to enroll 32 participants.