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Sleep-Assessment in Patients Between High Altitude HA vs. Sea Level LA in Healthy Individuals H

31 augustus 2026 bijgewerkt door: Silvia Ulrich Somaini

Effect of a One-week Descent From 2850m to Sea Level and Re-ascent in Patients With Pulmonary Arterial Hypertension and Healthy Controls Permanently Living > 2600m on Pulmonary Hemodynamics, Exercise Capacity, Blood Oxygenation, Sleep Disordered Breathing and Further Outcomes

To study the effect of relocation from high altitude (Quito Ecuador: 2850m) to sea level on sleeping parameters by polygraphy in healthy individuals, who live permanently >2600m.

Studie Overzicht

Toestand

Nog niet aan het werven

Conditie

Interventie / Behandeling

Gedetailleerde beschrijving

The aim of this research is to investigate sleeping parameters by polygraphy before and after relocation (high altitude near their living altitude vs. sea level) in healthy individuals, who permanently live at high altitude over 2600m

Studietype

Ingrijpend

Inschrijving (Geschat)

14

Fase

  • Niet toepasbaar

Contacten en locaties

In dit gedeelte vindt u de contactgegevens van degenen die het onderzoek uitvoeren en informatie over waar dit onderzoek wordt uitgevoerd.

Studiecontact

Studie Contact Back-up

  • Naam: Michael Furian, Prof. Dr. sc. ETH
  • Telefoonnummer: +41442552220

Studie Locaties

      • Zurich, Zwitserland, 8091
        • University Hospital of Zurich

Deelname Criteria

Onderzoekers zoeken naar mensen die aan een bepaalde beschrijving voldoen, de zogenaamde geschiktheidscriteria. Enkele voorbeelden van deze criteria zijn iemands algemene gezondheidstoestand of eerdere behandelingen.

Geschiktheidscriteria

Leeftijden die in aanmerking komen voor studie

  • Volwassen
  • Oudere volwassene

Accepteert gezonde vrijwilligers

Ja

Beschrijving

Inclusion Criteria:

  • Adults aged 18-80 years and of all genders
  • Permanent residence > 2600 m
  • healthy: no self-perceived cardiopulmonary disease limiting daily activities
  • written informed consent to participate in the study

Exclusion Criteria:

  • Age <18 years or >80 years
  • Participants who cannot follow the study investigations
  • Participants permanently living < 2600m.
  • Participants who traveled and stayed overnight at altitudes <2000 m in the past 4 weeks.
  • any self-perceived cardiopulmonary disease limiting daily activities

Studie plan

Dit gedeelte bevat details van het studieplan, inclusief hoe de studie is opgezet en wat de studie meet.

Hoe is de studie opgezet?

Ontwerpdetails

  • Primair doel: Ondersteunende zorg
  • Toewijzing: NVT
  • Interventioneel model: Opdracht voor een enkele groep
  • Masker: Geen (open label)

Wapens en interventies

Deelnemersgroep / Arm
Interventie / Behandeling
Experimenteel: Sleep-parameters at 2850m and at sea level
Assessment of sleep-parameters by polygraphy in healthy individuals at 2850m (pre-descent and after re-ascent) and at sea level in between
Descent from 2850m to sea level with a stay for 7 days and re-ascent back to 2850m

Wat meet het onderzoek?

Primaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Mean nocturnal SpO2 after 7 days at sea level
Tijdsspanne: From high altitude (2850m) to night 7 at sea level
Difference/change in mean nocturnal SpO2 between 2850m and Night 7 at sea level in healthy individuals
From high altitude (2850m) to night 7 at sea level

Secundaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Time spent with low SpO2 after 7 days at sea level
Tijdsspanne: From high altitude (2850m) to night 7 at sea level
Difference/change in time spent with low SpO2 (< 90% and < 80%) between 2850m and night 7 at sea level in healthy individuals
From high altitude (2850m) to night 7 at sea level
Apnoea-Hypopnoea-Index AHI after 7 days at sea level
Tijdsspanne: From high altitude (2850m) to night 7 at sea level
Difference/change in nocturnal apnoea-hypopnoea-index between 2850m and night 7 at sea level in healthy individuals
From high altitude (2850m) to night 7 at sea level
Oxygen-Desaturation-Index ODI after 7 days at sea level
Tijdsspanne: From high altitude (2850m) to night 7 at sea level
Difference/change in nocturnal Oxygen-Desaturation-Index ODI between 2850m and night 7 at sea level in healthy individuals
From high altitude (2850m) to night 7 at sea level
Nocturnal cardiovascular autonomic control after 7 days at sea level
Tijdsspanne: From high altitude (2850m) to night 7 at sea level
Difference/change in nocturnal cardiovascular autonomic control by heart rate (variability) between 2850m and night 7 at sea level in healthy individuals
From high altitude (2850m) to night 7 at sea level
Acclimatization-Effect of mean nocturnal SpO2 at sea level
Tijdsspanne: From Night 1 to Night 7 at sea level
Difference/change in mean nocturnal SpO2 at night 1 and night 7 within a stay at sea level of 7 days (after relocation from high altitude) in healthy individuals
From Night 1 to Night 7 at sea level
Acclimatization-Effect of time spent with low SpO2 at sea level
Tijdsspanne: From Night 1 to Night 7 at sea level
Difference/change in time spent with low SpO2 (< 90% and < 80%) at night 1 and night 7 within a stay at sea level of 7 days (after relocation from high altitude) in healthy individuals
From Night 1 to Night 7 at sea level
Acclimatization-Effect of Apnoea-Hypopnoea-Index AHI at sea level
Tijdsspanne: From Night 1 to Night 7 at sea level
Difference/change in nocturnal apnoea-hypopnoea-index at night 1 and night 7 within a stay at sea level of 7 days (after relocation from high altitude) in healthy individuals
From Night 1 to Night 7 at sea level
Acclimatization-Effect of Oxygen-Desaturation-Index ODI at sea level
Tijdsspanne: From Night 1 to Night 7 at sea level
Difference/change in nocturnal oxygen-desaturation-index at night 1 and night 7 within a stay at sea level of 7 days (after relocation from high altitude) in healthy individuals
From Night 1 to Night 7 at sea level
Acclimatization-Effect of nocturnal cardiovascular autonomic control at sea level
Tijdsspanne: From Night 1 to Night 7 at sea level
Difference/change in nocturnal cardiovascular autonomic control by heart rate (variability) at night 1 and night 7 within a stay at sea level of 7 days (after relocation from high altitude) in healthy individuals
From Night 1 to Night 7 at sea level
Mean nocturnal SpO2 after re-ascent to 2850m
Tijdsspanne: From Night 7 at sea level to night after reascent (time frame of 3 days)
Difference/change in mean nocturnal SpO2 between sea level (after one-week stay) and night after re-ascent to 2850m in healthy individuals
From Night 7 at sea level to night after reascent (time frame of 3 days)
Time spent with low SpO2 after re-ascent to 2850m
Tijdsspanne: From Night 7 at sea level to night after re-ascent (time frame of 3 days)
Difference/change in time spent with low SpO2 (< 90% and < 80%) between sea level (after one-week stay) and night after re-ascent to 2850m in healthy individuals
From Night 7 at sea level to night after re-ascent (time frame of 3 days)
Apnoea-Hypopnoea-Index AHI after re-ascent to 2850m
Tijdsspanne: From Night 7 at sea level to night after re-ascent (time frame of 3 days)
Difference/change in nocturnal apnoea-hypopnoea-index between sea level (after one-week stay) and night after re-ascent to 2850m in healthy individuals
From Night 7 at sea level to night after re-ascent (time frame of 3 days)
Oxygen-Desaturation-Index ODI after re-ascent to 2850m
Tijdsspanne: From Night 7 at sea level to night after re-ascent (time frame of 3 days)
Difference/change in nocturnal oxygen-desaturation-index between sea level (after one-week stay) and night after re-ascent to 2850m in healthy individuals
From Night 7 at sea level to night after re-ascent (time frame of 3 days)
Nocturnal cardiovascular autonomic control after re-ascent to 2850m
Tijdsspanne: From Night 7 at sea level to night after re-ascent (time frame of 3 days)
Difference/change in nocturnal cardiovascular autonomic control by heart rate (variability) between sea level (after one-week stay) and night after re-ascent to 2850m in healthy individuals
From Night 7 at sea level to night after re-ascent (time frame of 3 days)
Mean nocturnal SpO2 pre-descent and after re-ascent (2850m)
Tijdsspanne: From the night at 2850m prior to the descent, stay at sea level of one week in between, to the night after re-ascent to 2850m (time frame approximately 11 days)
Difference/change in mean nocturnal SpO2 between the night at 2850m prior to the descent to sea level (stay of 7 days at sea level in between) and the night at 2850m after re-ascent in healthy individuals
From the night at 2850m prior to the descent, stay at sea level of one week in between, to the night after re-ascent to 2850m (time frame approximately 11 days)
Time spent with low SpO2 pre-descent and after re-ascent (2850m)
Tijdsspanne: From the night at 2850m prior to the descent, stay at sea level of one week in between, to the night after re-ascent to 2850m (time frame approximately 11 days)
Difference/change in time spent with low SpO2 (< 90% and < 80%) between the night at 2850m prior to the descent to sea level (stay of 7 days at sea level in between) and the night at 2850m after re-ascent in healthy individuals
From the night at 2850m prior to the descent, stay at sea level of one week in between, to the night after re-ascent to 2850m (time frame approximately 11 days)
Apnoea-Hypopnoea-Index AHI pre-descent and after re-ascent (2850m)
Tijdsspanne: From the night at 2850m prior to the descent, stay at sea level of one week in between, to the night after re-ascent to 2850m (time frame approximately 11 days)
Difference/change in nocturnal apnoea-hypopnoea-index between the night at 2850m prior to the descent to sea level (stay of 7 days at sea level in between) and the night at 2850m after re-ascent in healthy individuals
From the night at 2850m prior to the descent, stay at sea level of one week in between, to the night after re-ascent to 2850m (time frame approximately 11 days)
Oxygen-Desaturation-Index ODI pre-descent and after re-ascent (2850m)
Tijdsspanne: From the night at 2850m prior to the descent, stay at sea level of one week in between, to the night after re-ascent to 2850m (time frame approximately 11 days)
Difference/change in nocturnal oxygen-desaturation-index between the night at 2850m prior to the descent to sea level (stay of 7 days at sea level in between) and the night at 2850m after re-ascent in healthy individuals
From the night at 2850m prior to the descent, stay at sea level of one week in between, to the night after re-ascent to 2850m (time frame approximately 11 days)
Nocturnal cardiovascular autonomic control pre-descent and after re-ascent (2850m)
Tijdsspanne: From the night at 2850m prior to the descent, stay at sea level of one week in between to the night after re-ascent to 2850m (time frame approximately 11 days)
Difference/change in nocturnal cardiovascular autonomic control by heart rate (variability) between the night at 2850 prior to the descent to sea level (stay of 7 days at sea level in between) and the night at 2850m after re-ascent in healthy individuals
From the night at 2850m prior to the descent, stay at sea level of one week in between to the night after re-ascent to 2850m (time frame approximately 11 days)

Medewerkers en onderzoekers

Hier vindt u mensen en organisaties die betrokken zijn bij dit onderzoek.

Sponsor

Onderzoekers

  • Hoofdonderzoeker: Silvia Ulrich, University Hospital Zurich, Departement of Pulmonology
  • Hoofdonderzoeker: Rodrigo Hoyos, Hospital Carlos Andrade Marin of Quito, Ecuador

Studie record data

Deze datums volgen de voortgang van het onderzoeksdossier en de samenvatting van de ingediende resultaten bij ClinicalTrials.gov. Studieverslagen en gerapporteerde resultaten worden beoordeeld door de National Library of Medicine (NLM) om er zeker van te zijn dat ze voldoen aan specifieke kwaliteitscontrolenormen voordat ze op de openbare website worden geplaatst.

Bestudeer belangrijke data

Studie start (Geschat)

25 september 2026

Primaire voltooiing (Geschat)

4 oktober 2026

Studie voltooiing (Geschat)

31 december 2026

Studieregistratiedata

Eerst ingediend

17 augustus 2026

Eerst ingediend dat voldeed aan de QC-criteria

31 augustus 2026

Eerst geplaatst (Werkelijk)

3 september 2026

Updates van studierecords

Laatste update geplaatst (Werkelijk)

3 september 2026

Laatste update ingediend die voldeed aan QC-criteria

31 augustus 2026

Laatst geverifieerd

1 augustus 2026

Meer informatie

Termen gerelateerd aan deze studie

Andere studie-ID-nummers

  • Ec_HAvsLA_sleep_H

Plan Individuele Deelnemersgegevens (IPD)

Bent u van plan om gegevens van individuele deelnemers (IPD) te delen?

JA

Beschrijving IPD-plan

Data will be provided upon request and based on a clear intention reviewed by an ethical review board.

Informatie over medicijnen en apparaten, studiedocumenten

Bestudeert een door de Amerikaanse FDA gereguleerd geneesmiddel

Nee

Bestudeert een door de Amerikaanse FDA gereguleerd apparaatproduct

Nee

Deze informatie is zonder wijzigingen rechtstreeks van de website clinicaltrials.gov gehaald. Als u verzoeken heeft om uw onderzoeksgegevens te wijzigen, te verwijderen of bij te werken, neem dan contact op met register@clinicaltrials.gov. Zodra er een wijziging wordt doorgevoerd op clinicaltrials.gov, wordt deze ook automatisch bijgewerkt op onze website .