Sleep-Assessment in Patients Between High Altitude HA vs. Sea Level LA in Healthy Individuals H
31 de agosto de 2026 actualizado por: 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.
Descripción general del estudio
Estado
Aún no reclutando
Condiciones
Intervención / Tratamiento
Descripción detallada
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
Tipo de estudio
Intervencionista
Inscripción (Estimado)
14
Fase
- No aplica
Contactos y Ubicaciones
Esta sección proporciona los datos de contacto de quienes realizan el estudio e información sobre dónde se lleva a cabo este estudio.
Estudio Contacto
- Nombre: Silvia Ulrich, Prof. Dr. med.
- Número de teléfono: +41442552220
- Correo electrónico: silvia.ulrich@usz.ch
Copia de seguridad de contactos de estudio
- Nombre: Michael Furian, Prof. Dr. sc. ETH
- Número de teléfono: +41442552220
Ubicaciones de estudio
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Zurich, Suiza, 8091
- University Hospital of Zurich
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Criterios de participación
Los investigadores buscan personas que se ajusten a una determinada descripción, denominada criterio de elegibilidad. Algunos ejemplos de estos criterios son el estado de salud general de una persona o tratamientos previos.
Criterio de elegibilidad
Edades elegibles para estudiar
- Adulto
- Adulto Mayor
Acepta Voluntarios Saludables
Sí
Descripción
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 de estudios
Esta sección proporciona detalles del plan de estudio, incluido cómo está diseñado el estudio y qué mide el estudio.
¿Cómo está diseñado el estudio?
Detalles de diseño
- Propósito principal: Cuidados de apoyo
- Asignación: N / A
- Modelo Intervencionista: Asignación de un solo grupo
- Enmascaramiento: Ninguno (etiqueta abierta)
Armas e Intervenciones
Grupo de participantes/brazo |
Intervención / Tratamiento |
|---|---|
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Experimental: 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
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Descent from 2850m to sea level with a stay for 7 days and re-ascent back to 2850m
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¿Qué mide el estudio?
Medidas de resultado primarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
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Mean nocturnal SpO2 after 7 days at sea level
Periodo de tiempo: From high altitude (2850m) to night 7 at sea level
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Difference/change in mean nocturnal SpO2 between 2850m and Night 7 at sea level in healthy individuals
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From high altitude (2850m) to night 7 at sea level
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Medidas de resultado secundarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
|
Time spent with low SpO2 after 7 days at sea level
Periodo de tiempo: From high altitude (2850m) to night 7 at sea level
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Difference/change in time spent with low SpO2 (< 90% and < 80%) between 2850m and night 7 at sea level in healthy individuals
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From high altitude (2850m) to night 7 at sea level
|
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Apnoea-Hypopnoea-Index AHI after 7 days at sea level
Periodo de tiempo: From high altitude (2850m) to night 7 at sea level
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Difference/change in nocturnal apnoea-hypopnoea-index between 2850m and night 7 at sea level in healthy individuals
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From high altitude (2850m) to night 7 at sea level
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Oxygen-Desaturation-Index ODI after 7 days at sea level
Periodo de tiempo: From high altitude (2850m) to night 7 at sea level
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Difference/change in nocturnal Oxygen-Desaturation-Index ODI between 2850m and night 7 at sea level in healthy individuals
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From high altitude (2850m) to night 7 at sea level
|
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Nocturnal cardiovascular autonomic control after 7 days at sea level
Periodo de tiempo: From high altitude (2850m) to night 7 at sea level
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Difference/change in nocturnal cardiovascular autonomic control by heart rate (variability) between 2850m and night 7 at sea level in healthy individuals
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From high altitude (2850m) to night 7 at sea level
|
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Acclimatization-Effect of mean nocturnal SpO2 at sea level
Periodo de tiempo: From Night 1 to Night 7 at sea level
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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
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From Night 1 to Night 7 at sea level
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Acclimatization-Effect of time spent with low SpO2 at sea level
Periodo de tiempo: From Night 1 to Night 7 at sea level
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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
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From Night 1 to Night 7 at sea level
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Acclimatization-Effect of Apnoea-Hypopnoea-Index AHI at sea level
Periodo de tiempo: From Night 1 to Night 7 at sea level
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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
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From Night 1 to Night 7 at sea level
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Acclimatization-Effect of Oxygen-Desaturation-Index ODI at sea level
Periodo de tiempo: From Night 1 to Night 7 at sea level
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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
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From Night 1 to Night 7 at sea level
|
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Acclimatization-Effect of nocturnal cardiovascular autonomic control at sea level
Periodo de tiempo: From Night 1 to Night 7 at sea level
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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
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From Night 1 to Night 7 at sea level
|
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Mean nocturnal SpO2 after re-ascent to 2850m
Periodo de tiempo: From Night 7 at sea level to night after reascent (time frame of 3 days)
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Difference/change in mean nocturnal SpO2 between sea level (after one-week stay) and night after re-ascent to 2850m in healthy individuals
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From Night 7 at sea level to night after reascent (time frame of 3 days)
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Time spent with low SpO2 after re-ascent to 2850m
Periodo de tiempo: From Night 7 at sea level to night after re-ascent (time frame of 3 days)
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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
Periodo de tiempo: 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
Periodo de tiempo: 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
Periodo de tiempo: 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)
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|
Mean nocturnal SpO2 pre-descent and after re-ascent (2850m)
Periodo de tiempo: 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)
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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)
|
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Time spent with low SpO2 pre-descent and after re-ascent (2850m)
Periodo de tiempo: 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)
|
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Apnoea-Hypopnoea-Index AHI pre-descent and after re-ascent (2850m)
Periodo de tiempo: 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)
Periodo de tiempo: 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)
Periodo de tiempo: 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)
|
Colaboradores e Investigadores
Aquí es donde encontrará personas y organizaciones involucradas en este estudio.
Patrocinador
Investigadores
- Investigador principal: Silvia Ulrich, University Hospital Zurich, Departement of Pulmonology
- Investigador principal: Rodrigo Hoyos, Hospital Carlos Andrade Marin of Quito, Ecuador
Fechas de registro del estudio
Estas fechas rastrean el progreso del registro del estudio y los envíos de resultados resumidos a ClinicalTrials.gov. Los registros del estudio y los resultados informados son revisados por la Biblioteca Nacional de Medicina (NLM) para asegurarse de que cumplan con los estándares de control de calidad específicos antes de publicarlos en el sitio web público.
Fechas importantes del estudio
Inicio del estudio (Estimado)
25 de septiembre de 2026
Finalización primaria (Estimado)
4 de octubre de 2026
Finalización del estudio (Estimado)
31 de diciembre de 2026
Fechas de registro del estudio
Enviado por primera vez
17 de agosto de 2026
Primero enviado que cumplió con los criterios de control de calidad
31 de agosto de 2026
Publicado por primera vez (Actual)
3 de septiembre de 2026
Actualizaciones de registros de estudio
Última actualización publicada (Actual)
3 de septiembre de 2026
Última actualización enviada que cumplió con los criterios de control de calidad
31 de agosto de 2026
Última verificación
1 de agosto de 2026
Más información
Términos relacionados con este estudio
Palabras clave
Términos MeSH relevantes adicionales
Otros números de identificación del estudio
- Ec_HAvsLA_sleep_H
Plan de datos de participantes individuales (IPD)
¿Planea compartir datos de participantes individuales (IPD)?
SÍ
Descripción del plan IPD
Data will be provided upon request and based on a clear intention reviewed by an ethical review board.
Información sobre medicamentos y dispositivos, documentos del estudio
Estudia un producto farmacéutico regulado por la FDA de EE. UU.
No
Estudia un producto de dispositivo regulado por la FDA de EE. UU.
No
Esta información se obtuvo directamente del sitio web clinicaltrials.gov sin cambios. Si tiene alguna solicitud para cambiar, eliminar o actualizar los detalles de su estudio, comuníquese con register@clinicaltrials.gov. Tan pronto como se implemente un cambio en clinicaltrials.gov, también se actualizará automáticamente en nuestro sitio web. .