Clinical trials: High Altitude Effects
Acute Mountain Sickness
Erythropoietin in the Prevention of Acute Mountain Sickness
Acute mountain sickness (AMS) is a syndrome of nonspecific symptoms and is therefore subjective. The Lake Louise Consensus Group defined acute mountain sickness as the presence of headache in an unacclimatized person who has…
- Trial name
- EPO-AMS (NCT01665781)
- Testing
- Erythropoietin
- Where
- South Korea
- Volunteers
- 39 people, healthy volunteers welcome
- Sponsor
- University of Ulsan
Acute Mountain Sickness, High Altitude Pulmonary Edema
Hemodynamic Changes in Altitude Adaptation
We use a new technology (Nexfin from BMEYE-Inventive Hemodynamics) to monitor Cardiac Output, Blood Pressure, Fluid Responsiveness, Pulse Oximetry, Hemoglobin Concentration, Oxygen Delivery in Climbers during their process of…
- Conditions
- Acute Mountain Sickness, High Altitude Pulmonary Edema, High Altitude Cerebral Edema
- Trial name
- NCT01698619
- Where
- Germany
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- Goethe University
Hypoxia, Altitude, Cold Exposure
Effects of Physical Training in Altered Environmental Conditions on Exercise Performance
The main objective of the study is to evaluate the physiological-biochemical effects of physical training under artificially altered climatic conditions (using a hypoxic thermoclimatic chamber) in particular to determine the…
- Conditions
- Hypoxia, Altitude, Cold Exposure, Heat Exposure
- Trial name
- NCT06159374
- Testing
- exercise and environmental conditions
- Where
- Poland
- Volunteers
- 128 people, healthy volunteers welcome
- Sponsor
- University School of Physical Education, Krakow, Poland
Ketosis, Hypoxia
Intermittent Exogenous Ketosis (IEK) at High Altitude
Altitude-related hypoxia decreases human functional capacity, especially during exercise. Even with prolonged acclimatization, the physiological adaptations are insufficient to preserve exercise capacity, especially at higher…
- Trial name
- NCT06097754
- Testing
- Ketone ester
- Where
- 2 sites in Belgium, Slovenia
- Volunteers
- 35 people, healthy volunteers welcome
- Sponsor
- Jozef Stefan Institute
Acute Mountain Sickness, Environmental Illness
Can Rhodiola Crenulata Intake Improve Oxygen Saturation and Decrease the Incidence of Acute Mountain Sickness
Traditional folk medicine in the Arctic and Himalayan areas used Rhodiola species to enhance physical endurance, prevent aging, resist acute mountain sickness (AMS), and to treat fatigue, depression, anemia, impotence and…
- Trial name
- NCT01536288
- Testing
- Rhodiola crenulata
- Where
- Taiwan
- Volunteers
- 125 people, healthy volunteers welcome
- Sponsor
- Chang Gung Memorial Hospital
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
Acute Mountain Sickness
EleVation carE: a Randomized Controlled Trial on the Prevention of Acute Mountain Sickness With Suxiao Jiuxin Pill
The aim of this randomized, controlled trial is to evaluate the safety and efficacy of Suxiao Jiuxin Pills for prevention of acute mountain sickness (AMS) after high altitude exposure in healthy volunteers, and its influences on…
- Trial name
- EVEREST (NCT06531161)
- Testing
- Suxiao Jiuxin Pill
- Volunteers
- 168 people, healthy volunteers welcome
- Sponsor
- Peking University First Hospital
Acute Mountain Sickness, High Altitude Pulmonary Edema
Sleep and Cerebral Responses to High Altitude
Mechanisms underlying high-altitude intolerance as well as exercise performance limitation in hypoxia still remain to be fully understood.
- Conditions
- Acute Mountain Sickness, High Altitude Pulmonary Edema, High Altitude Cerebral Edema
- Trial name
- VALLOT 2011 (NCT01565603)
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- University Hospital, Grenoble
Intermittent Hypoxia
Effects of Melatonin on Sleep, Ventilatory Control and Cognition at Altitude
Low oxygen at altitude causes pauses in breathing during sleep, called central sleep apnea. Central sleep apnea causes repeated awakenings and poor sleep.
- Trial name
- NCT03588676
- Testing
- Melatonin
- Where
- United States
- Volunteers
- 39 people, healthy volunteers welcome
- Sponsor
- Robert L. Owens
Hypoxia, Altitude, Exercise
Oxygen Transport in Normobaric vs. Hypobaric Hypoxia
1) Oxygen Transport in Normobaric versus Hypobaric Hypoxia. 2) The purpose of this study is to examine acute responses in arterial and muscle tissue oxygenation during incremental exercise in normobaric versus hypobaric hypoxia.
- Trial name
- NCT03335917
- Testing
- Hypoxia, Exercise
- Where
- United States
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- University of Nebraska
Weight Loss, Other Effects of High Altitude
Substrate Utilization, Exercise Performance, and Skeletal Muscle Response to Energy Deficit and Altitude Acclimatization
This research will evaluate nutrition requirements for missions at high altitude (i.e. >7800 feet above sea level) and the information obtained can be used to optimize nutrient content specifications for combat rations.
- Trial name
- NCT02731066
- Testing
- Standard pro, High pro, carbo bev
- Where
- United States
- Volunteers
- 21 people, healthy volunteers welcome
- Sponsor
- United States Army Research Institute of Environmental Medicine
High Altitude Pulmonary Edema, Non-Invasive Positive Pressure Ventilation
Non-Invasive Positive Pressure Ventilation Management of High Altitude Pulmonary Edema
Trial of Non-Invasive Positive Pressure Ventilation Management of High Altitude Pulmonary Edema
- Conditions
- High Altitude Pulmonary Edema, Non-Invasive Positive Pressure Ventilation, Hypoxia
- Trial name
- NCT04288219
- Testing
- Non-Invasive Positive Pressure Ventilation, Nifedipine, supplemental oxygen
- Where
- Nepal
- Volunteers
- 16 people, healthy volunteers welcome
- Sponsor
- Massachusetts General Hospital
Hypertension, Cardiovascular Risk Factor
HIGH Altitude CArdiovascular REsearch Latin America Population Study
High blood pressure (BP) is one of the principal cardiovascular risk factors. While BP levels and hypertension prevalence are well characterized in many populations, information on BP and on cardiovascular risk profile in high…
- Conditions
- Hypertension, Cardiovascular Risk Factor, Altitude Hypoxia, Altitude Sickness
- Trial name
- HIGHCARE-LAPS (NCT04751292)
- Testing
- Exposure to high altitude
- Where
- Peru
- Volunteers
- 937 people, healthy volunteers welcome
- Sponsor
- Istituto Auxologico Italiano
Hypoxia, Altitude, Brain
The Cerebral Hemodynamic and Cognitive Effects of Acute Resveratrol Administration in Young, Healthy Adults at Stimulated Altitude.
Background: Vaso-active polyphenols have been proposed to enhance cognitive performance. Oral administration with the non-flavonoid polyphenol, resveratrol, has been found to modulate cerebral blood flow (CBF); yet, this has not…
- Trial name
- NCT03541993
- Testing
- Resveratrol
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- Northumbria University
Acute Mountain Sickness
Prochlorperazine Maleate Versus Placebo for the Prophylaxis of Acute Mountain Sickness
This study is a trial looking at a drug to help prevent acute mountain sickness. The drug is prochlorperazine, a drug commonly used to treat nausea vomiting and headache.
- Trial name
- NCT06450899
- Testing
- Prochlorperazine Maleate
- Where
- United States
- Volunteers
- 57 people, healthy volunteers welcome
- Sponsor
- University of Colorado, Denver
High Altitude Hypoxia, Exercise
Ketone Monoester Supplements, High Altitude, and Brain Blood Flow During Exercise
The purpose of this trial is to investigate the effect of acute ketone monoester ingestion (0.6 g KME/kg body weight) on the occurrence of the ventilatory threshold and the subsequent response of blood velocity in cerebral…
- Trial name
- NCT07063732
- Testing
- Ketone Monoester (KME)
- Where
- 2 sites in United States, Canada
- Volunteers
- 14 people, healthy volunteers welcome
- Sponsor
- McMaster University
Adolescent Swimmers
Effects of Six Weeks of Sub-High-Altitude Training on the Physical Performance and Psychological State of Adolescent Swimmers
To investigate the effects of sub-altitude training on the physical performance and psychological state of adolescent swimmers and to analyze the possible mechanisms underlying these effects
- Trial name
- NCT07786935
- Testing
- sub-altitude training
- Where
- China
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Xiang Gao
Altitude Hypoxia, Ventilation
Effects of Melatonin on Sleep, Ventilatory Control and Cognition at Altitude.
Low oxygen at altitude causes pauses in breathing during sleep, called central sleep apnea. Central sleep apnea causes repeated awakenings and poor sleep.
- Conditions
- Altitude Hypoxia, Ventilation, Sleep, Oxidative Stress
- Trial name
- NCT03368352
- Testing
- Melatonin, Hypoxia
- Where
- United States
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- University of California, San Diego
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
Acute Mountain Sickness
Sickness Evaluation at Altitude With Acetazolamide at Relative Dosages
This double blind randomized trial will compare acetazolamide taken the morning of ascent to acetazolamide taken the evening prior to ascent for the prevention of acute mountain sickness (AMS).
- Trial name
- SEAWARD (NCT03424226)
- Testing
- Acetazolamide
- Where
- United States
- Volunteers
- 105 people, healthy volunteers welcome
- Sponsor
- Stanford University