Clinical trials: Hypoxia, Altitude
Effects of High Altitude
Acclimatization of Healthy Subjects During a Stay at 3200 m
The study evaluates respiratory acclimatization in healthy lowlanders staying for 3 weeks at 3200 m.
- Trial name
- NCT02451020
- Testing
- Altitude exposure
- Where
- Kyrgyzstan
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- University of Zurich
Pulmonary Arterial Hypertension (PAH), Pulmonary Vascular Disease
Assessment of Total Pulmonary Resistance sPAP/CO Between High Altitude HA vs. Sea Level LA in Patients With Pulmonary Arterial Hypertension PAH
To study the effect of relocation from high altitude (Quito Ecuador: 2850m) to sea level on pulmonary resistance (sPAP/CO) and other hemodynamic outcomes in patients with pulmonary arterial hypertension PAH, who live permanently…
- Conditions
- Pulmonary Arterial Hypertension (PAH), Pulmonary Vascular Disease, High Altitude, Echocardiography
- Trial name
- NCT07804524
- Testing
- Descent from 2850m to sea level
- Where
- Switzerland
- Volunteers
- 20 people
- Sponsor
- Silvia Ulrich Somaini
Altitude Hypoxia, Neonatal Encephalopathy
Neonatal Electrical Activity at Different Altitude Levels
In this study, the objective is to compare neonatal cerebral electrical activity within 3 days after birth across different altitude areas using amplitude-integrated electroencephalography (aEEG), and establish reference value…
- Trial name
- NCT05966714
- Testing
- aEEG
- Where
- 2 sites in China
- Volunteers
- 531 people, healthy volunteers welcome
- Sponsor
- Children's Hospital of Fudan University
Hypoxia, Exercise
Physiological Characteristics of High Altitude Climbers
Climbing at high altitude and tolerating hypoxic environment require specific physiological adaptations. Large intersubjects differences exist regarding the ability to adapt to high altitude and hypoxia.
- Conditions
- Hypoxia, Exercise, Sport Performance
- Trial name
- ALTIPERF (NCT02880150)
- Testing
- Stress test
- Where
- France
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- University Hospital, Grenoble
Acute Mountain Sickness
The Effects of Intermittent Hypoxia on Acute Hypoxic Injury
This study intends to further reveal the effectiveness of intermittent hypoxia in preventing acute hypoxic injury.
- Trial name
- NCT05733338
- Testing
- Intermittent Hypoxia
- Where
- China
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Capital Medical University
Hypothermia, Hypoxia
Pharmacologic Induction of Tolerance for Hypoxia & Hypothermia
Warfighter Performance Optimization in Extreme Environments remains an area of important and intense investigation, with the following goals: (1) Optimize, sustain and augment medical readiness and physiological/ psychological…
- Conditions
- Hypothermia, Hypoxia, Mountain Sickness
- Trial name
- PhITHy-Ho (NCT06129825)
- Testing
- Prospective
- Where
- United States
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- University of Maryland, Baltimore
Neurocognition
Effect of Supplemental Oxygen Therapy on Neurocognitive Performance in Healthy Highlanders
Exposure to high altitudes, defined as locations above 2500 m, has been shown to cause cognitive alternations due to reduced blood oxygenation (SpO2).
- Trial name
- SPIRIT_1 (NCT07651917)
- Testing
- Supplemental oxygen therapy
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- University of Zurich
Multiple System Atrophy
High-Altitude Neurodegeneration Cohort (HANC) Study
Chronic physiological hypoxia has been implicated in the pathogenesis of multiple system atrophy (MSA), a fatal neurodegenerative disorder of unknown etiology.
- Trial name
- HANC (NCT07657520)
- Testing
- No Intervention: Observational Cohort
- Where
- China
- Volunteers
- healthy volunteers welcome
- Sponsor
- West China Hospital
Neuromuscular Diseases, High Altitude Hypoxia
Assessing Air Travel Safety in Neuromuscular Dystrophy: Standard Versus Prolonged High Altitude Simulation Tests
To determine if a prolonged high altitude simulation test (HAST) lasting two hours, identifies more patients at risk of respiratory failure than the standard HAST lasting 20 minutes, in patients with neuromuscular disease (NMD)…
- Trial name
- NCT03312361
- Testing
- 15% oxygen
- Where
- Canada
- Volunteers
- 23 people
- Sponsor
- The Hospital for Sick Children
Pulmonary Hypertension
Acute Exposure to High Altitude on Symptoms
Randomized crossover Trial in patients with Pulmonary Hypertension (PAH, CTEPH) to assess the acute response to High Altitude (2500m above sea level) in altitude related symptoms
- Trial name
- NCT03593005
- Testing
- Assessment at Low Altitude (470m above sea level), Exposure to High Altitude (2500m above sea level)
- Where
- Switzerland
- Volunteers
- 28 people
- Sponsor
- University of Zurich
Cognition
The Study on Effects of Acute Exposure to High Altitude Hypoxia on Cognitive Function in Lowlanders
The purpose of this study is to investigate the impact of rapid elevation to 3,800 meters on the cognitive function of low-altitude residents through a plateau field and plain control study, and explore the objective indicators…
- Trial name
- NCT05411185
- Where
- China
- Volunteers
- 43 people, healthy volunteers welcome
- Sponsor
- Xijing Hospital
Hypoxia, Altitude, Exercise Tolerance
Direct and Cross Effects of Adaptation to Systemic Hyperthermia: Impact on Quality of Life, Neurohormonal and Psychophysiological Human Status
Life expectancy and quality of human life are important indicator of the sustainable development of the society. At the same time, the physical, functional, emotional and psychological components of the of the quality of life…
- Conditions
- Hypoxia, Altitude, Exercise Tolerance, Metabolic Disturbance, Quality of Life
- Trial name
- NCT04089410
- Testing
- Hyperthermic Fitness Treatment (HFT), Physical Examination, Assessment of Cardiorespiratory Fitness
- Where
- Russia
- Volunteers
- 67 people, healthy volunteers welcome
- Sponsor
- I.M. Sechenov First Moscow State Medical University
Covid19, SARS-CoV2 Infection
Coronaltitude - Multicentric Evaluation of the Impact on Hypoxia Sensitivity of Patients With COVID-19
In this study, the investigators will examine the extent to which having suffered coronavirus disease 2019 (COVID19) impacts one's sensibility to hypoxia by means of the 'Richalet test'.
- Conditions
- Covid19, SARS-CoV2 Infection, Hypoxia, Altitude
- Trial name
- NCT05167357
- Testing
- COVID19
- Where
- France
- Volunteers
- 68 people, healthy volunteers welcome
- Sponsor
- Institut de Formation et de Recherche en Médecine de Montagne
Pulmonary Hypertension
Acute Exposure of Simulated Hypoxia on Cardiac Output
Randomized crossover trial in patients with Pulmonary Hypertension (PAH, CTEPH) to assess the acute response to simulated altitude (FIO2: 15.1% = equivalent to 2500m above sea level) on non-invasive cardiac output assessments by…
- Trial name
- NCT03574675
- Testing
- Simulated Altitude (FiO2: 15.1)
- Where
- Switzerland
- Volunteers
- 28 people
- Sponsor
- University of Zurich
High Altitude Pulmonary Hypertension, Maximal Exercise Capacity
Maximal Exercise Capacity at 2500 m of High Altitude
The impact of hypoxia on maximal work rate during incremental ramp exercise within 3-6 hours after arriving at 2500m of high altitude in patients with precapillary pulmonary hypertension
- Trial name
- NCT05264324
- Testing
- Maximal Exercise Capacity
- Where
- Switzerland
- Volunteers
- 28 people
- Sponsor
- University of Zurich
Pulmonary Edema
Pulmonary Function at High-Altitude
Based on the findings of decreased vital capacity, decreased FEV1 and increased closing volume after ascent to high altitude, some investigators suggest the presence of a subclinical high altitude pulmonary edema (HAPE).
- Trial name
- NCT00604227
- Testing
- Hypoxic Exposure
- Where
- Germany
- Volunteers
- 34 people, healthy volunteers welcome
- Sponsor
- Heidelberg University
High Altitude Pulmonary Hypertension, Sleep
Nocturnal Oxygenation and Sleep-related Breathing Disorders During the First Night of a Stay at 2500m of High Altitude in Patients With Precapillary Pulmonary Hypertension
The impact of hypoxia at 2500m of high altitude on sleep in patients with precapillary pulmonary hypertension
- Trial name
- NCT05089487
- Testing
- Nocturnal rest (sleep study)
- Where
- Switzerland
- Volunteers
- 28 people
- Sponsor
- University of Zurich
Hypoxia
Human Adaptation to High Altitude
This scientific study aims at studying human adaptations to high altitude and the studies will be conducted at the University of Zürich and during a 4 week high altitude "expedition" to the Jungfraujoch research station at 3450 m…
- Trial name
- NCT01627652
- Testing
- altitude
- Where
- Switzerland
- Volunteers
- 8 people, healthy volunteers welcome
- Sponsor
- Zurich Center for Integrative Human Physiology
Hypoxia, Altitude
The Impact of Physical Training Under Normobaric Hypoxia on Oxidative Stress Level, Inflammatory State, Intestinal Damage, and Mitochondrial Metabolism in Young Males
Cognitive assessment of the influence of a 4-week proprietary training program under normobaric hypoxia conditions on the levels of inflammatory markers, disturbances in prooxidant-antioxidant balance, degree of intestinal…
- Trial name
- NCT06204731
- Testing
- Exercise and environmental conditions
- Where
- Poland
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- University School of Physical Education, Krakow, Poland
Hypoxia
Effect of Short-term Simulated Altitude Exposure on Cardiopulmonary Functional Capacity
To determine if exposure of older volunteers, age 50-70y, who are healthy, but not physically active, to 7 days of mild hypoxia (15% oxygen, equivalent 2440m) will improve cardiopulmonary functional capacity.
- Trial name
- NCT02523716
- Testing
- Hypoxia, Normoxia
- Volunteers
- 8 people, healthy volunteers welcome
- Sponsor
- University of Limerick