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

31 août 2026 mis à jour par: 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.

Aperçu de l'étude

Statut

Pas encore de recrutement

Les conditions

Intervention / Traitement

Description détaillée

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

Type d'étude

Interventionnel

Inscription (Estimé)

14

Phase

  • N'est pas applicable

Contacts et emplacements

Cette section fournit les coordonnées de ceux qui mènent l'étude et des informations sur le lieu où cette étude est menée.

Coordonnées de l'étude

  • Nom: Silvia Ulrich, Prof. Dr. med.
  • Numéro de téléphone: +41442552220
  • E-mail: silvia.ulrich@usz.ch

Sauvegarde des contacts de l'étude

  • Nom: Michael Furian, Prof. Dr. sc. ETH
  • Numéro de téléphone: +41442552220

Lieux d'étude

  • Suisse
      • Zurich, Suisse, 8091
        • University Hospital of Zurich

Critères de participation

Les chercheurs recherchent des personnes qui correspondent à une certaine description, appelée critères d'éligibilité. Certains exemples de ces critères sont l'état de santé général d'une personne ou des traitements antérieurs.

Critère d'éligibilité

Âges éligibles pour étudier

  • Adulte
  • Adulte plus âgé

Accepte les volontaires sains

Oui

La description

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

Plan d'étude

Cette section fournit des détails sur le plan d'étude, y compris la façon dont l'étude est conçue et ce que l'étude mesure.

Comment l'étude est-elle conçue ?

Détails de conception

  • Objectif principal: Soins de soutien
  • Répartition: N / A
  • Modèle interventionnel: Affectation à un seul groupe
  • Masquage: Aucun (étiquette ouverte)

Armes et Interventions

Groupe de participants / Bras
Intervention / Traitement
Expérimental: 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
Comportemental: Descent from 2850m to sea level and re-ascent back to 2850m
Descent from 2850m to sea level with a stay for 7 days and re-ascent back to 2850m

Que mesure l'étude ?

Principaux critères de jugement

Mesure des résultats
Description de la mesure
Délai
Mean nocturnal SpO2 after 7 days at sea level
Délai: 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

Mesures de résultats secondaires

Mesure des résultats
Description de la mesure
Délai
Time spent with low SpO2 after 7 days at sea level
Délai: 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
Délai: 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
Délai: 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
Délai: 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
Délai: 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
Délai: 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
Délai: 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
Délai: 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
Délai: 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
Délai: 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
Délai: 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
Délai: 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
Délai: 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
Délai: 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)
Délai: 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)
Délai: 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)
Délai: 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)
Délai: 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)
Délai: 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)

Collaborateurs et enquêteurs

C'est ici que vous trouverez les personnes et les organisations impliquées dans cette étude.

Parrainer

Silvia Ulrich Somaini

Les enquêteurs

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

Dates d'enregistrement des études

Ces dates suivent la progression des dossiers d'étude et des soumissions de résultats sommaires à ClinicalTrials.gov. Les dossiers d'étude et les résultats rapportés sont examinés par la Bibliothèque nationale de médecine (NLM) pour s'assurer qu'ils répondent à des normes de contrôle de qualité spécifiques avant d'être publiés sur le site Web public.

Dates principales de l'étude

Début de l'étude (Estimé)

25 septembre 2026

Achèvement primaire (Estimé)

4 octobre 2026

Achèvement de l'étude (Estimé)

31 décembre 2026

Dates d'inscription aux études

Première soumission

17 août 2026

Première soumission répondant aux critères de contrôle qualité

31 août 2026

Première publication (Réel)

3 septembre 2026

Mises à jour des dossiers d'étude

Dernière mise à jour publiée (Réel)

3 septembre 2026

Dernière mise à jour soumise répondant aux critères de contrôle qualité

31 août 2026

Dernière vérification

1 août 2026

Plus d'information

Termes liés à cette étude

Mots clés

Termes MeSH pertinents supplémentaires

Autres numéros d'identification d'étude

  • Ec_HAvsLA_sleep_H

Plan pour les données individuelles des participants (IPD)

Prévoyez-vous de partager les données individuelles des participants (DPI) ?

OUI

Description du régime IPD

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

Informations sur les médicaments et les dispositifs, documents d'étude

Étudie un produit pharmaceutique réglementé par la FDA américaine

Non

Étudie un produit d'appareil réglementé par la FDA américaine

Non

Ces informations ont été extraites directement du site Web clinicaltrials.gov sans aucune modification. Si vous avez des demandes de modification, de suppression ou de mise à jour des détails de votre étude, veuillez contacter register@clinicaltrials.gov. Dès qu'un changement est mis en œuvre sur clinicaltrials.gov, il sera également mis à jour automatiquement sur notre site Web .

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