Clinical trials: High Altitude
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
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
Environmental Sleep Disorder, Cheyne-Stokes Respiration
Monitoring of the Cerebral Tissue Oxygenation and Perfusion in the Adapting Climber During Sleep in High Altitude
One of the major challenges in adapting to high altitudes is that with increasing altitude sleeping quality declines rapidly. Thus, the night sleep can only provide limited to none regeneration.
- Conditions
- Environmental Sleep Disorder, Cheyne-Stokes Respiration, Altitude Sickness
- Trial name
- PerOxySleep (NCT01465971)
- Where
- Germany
- Volunteers
- 6 people, healthy volunteers welcome
- Sponsor
- Goethe University
High Altitude Pulmonary Hypertension, Sleep Apnea
HAPH Registry: Time Course and Prognostic Significance of Pulmonary Artery Pressure in Highlanders.
The purpose of the current study is to evaluate the clinical and physiologic course of Kyrgyz highlanders with high altitude pulmonary hypertension (HAPH) by performing a longitudinal cohort study.
- Trial name
- NCT06489730
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- University of Zurich
High Altitude Effects
Effect of Acetazolamide and Methazolamide on Hypoxic Exercise Performance
A single-centered randomized doubled blinded placebo-controlled cross-over trial comparing two the effect of two carbonic anhydrase inhibitors on exercise performance in acute hypoxia.
- Trial name
- NCT05575180
- Testing
- Acetazolamide 250Mg Tab, Methazolamide Pill
- Where
- Canada
- Volunteers
- 15 people, healthy volunteers welcome
- Sponsor
- University of Waterloo
Pain
MethOxyflUraNe at moderaTe High AltItudes for PAIN Management
A randomised, double-blind, cross-over study to assess the analgesic effect of methoxyflurane at moderate high altitudes in a wilderness field setting.
- Trial name
- MOUNTAIN-PAIN (NCT03849027)
- Testing
- Methoxyflurane
- Where
- South Africa
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- University of Cape Town
Pulmonary Edema
Lung Ultrasound in High Altitude Lung Edema
High altitude pulmonary edema is a life-threatening condition that remains a concern for climbers and clinicians alike. It is defined as a non-cardiac pulmonary edema occurring at altitudes exceeding 3000m in non-acclimatised…
- Trial name
- NCT03117686
- Testing
- lung ultrasound
- Where
- Austria
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Medical University of Vienna
Sleep Disorder; Breathing-Related
WatchPAT Compared to PSG at 8500'
Subjects who consent to participate in the research will undergo a simultaneous recording of inlab PSG and WatchPAT200 for comparing the WatchPAT data to PSG at an altitude of 8500'.
- Trial name
- NCT04249011
- Where
- United States
- Volunteers
- 22 people, healthy volunteers welcome
- Sponsor
- Itamar-Medical, Israel
High-altitude Sleep Disturbance
Comparison of Temazepam and Acetazolamide to Treat Difficulty Sleeping at High Altitude
More than 70% of visitors to high altitude suffer poor sleep. The present study seeks to answer the question: Which medication is associated with better sleep at high altitude: temazepam or acetazolamide? The investigators…
- Trial name
- NCT01519544
- Testing
- Temazepam, Acetazolamide
- Where
- Nepal
- Volunteers
- 34 people, healthy volunteers welcome
- Sponsor
- Massachusetts General Hospital
Vasodilation, Vasoconstriction
Sex Differences in Sympathetic Vascular Reactivity at High Altitude
This study aims to investigate sex differences in blood pressure control associated with exposure to acute hypoxia (low oxygen), and short term acclimatization to hypoxia at high altitude.
- Trial name
- NCT05525416
- Testing
- Sodium Nitroprusside, Phenylephrine Hydrochloride, Norepinephrine
- Where
- 2 sites in Canada
- Volunteers
- 17 people, healthy volunteers welcome
- Sponsor
- University of Alberta
Gut Microbiota
Temporal Changes in the Gut Microbiota Before and After Migrating to High Altitude
This prospective observational cohort study aims to learn about temporal changes in the gut microbiota before and after migrating to high altitudes in healthy participants.
- Trial name
- NCT05901896
- Testing
- there are no intervention
- Where
- China
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- Liaocheng People's Hospital
Effect of High Altitude
Effect of High Altitude Exposure, Acclimatization and Re-exposure on Nocturnal Breathing Pattern in Lowlanders
Prospective interventional trial in lowlanders evaluating the effect of acute exposure, acclimatization and re-exposure of high altitude on nocturnal breathing pattern.
- Trial name
- NCT02730143
- Testing
- Altitude exposure
- Where
- Switzerland
- Volunteers
- 21 people, healthy volunteers welcome
- Sponsor
- University of Zurich
Healthy
Biovitals Analytics Engine - Altitude Study
Unexpected adverse health events resulting in a hospital admission can be potentially avoided by leveraging novel physiological sensors combined with advanced computational techniques to predict changes in physiology prior to the…
- Trial name
- NCT03661606
- Testing
- Simulated Altitude Chamber
- Where
- Singapore
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Biofourmis Singapore Pte Ltd.
Sleep-Disordered Breathing
HighCycle Study: Effect of High Altitude on Sleep Disordered Breathing in Women Related to Their Menstrual Cycle Phase
Prospective cohort study investigating the menstrual cycle phase (MCP) dependent sleep disordered breathing (SDB) in women travelling to 3600 m.
- Trial name
- NCT06498544
- Testing
- Exposure to 3600 m
- Where
- Kyrgyzstan
- Volunteers
- 91 people, healthy volunteers welcome
- Sponsor
- University of Zurich
Hypoxia
The Evaluation of a Mobile Device to Measure Ataxia With High Altitude Exposure
With exposure to high altitude some individuals will develop acute mountain sickness (AMS). Current evaluation of AMS can make it difficult to rule out other possible conditions.
- Trial name
- NCT02600078
- Testing
- AMS Monitor App, Lake Louise Score, Balance Error Scoring System
- Where
- Canada
- Volunteers
- 16 people, healthy volunteers welcome
- Sponsor
- University of British Columbia
High Altitude
The Study of Personalized Health Check-up Programs and Standards for High-altitude Migrant Populations
By using wearable devices to monitor and record the physiological data changes and health outcomes (incidence and severity of high-altitude illnesses) of high-altitude migrants at different stages (pre-entry, acute/chronic…
- Trial name
- NCT07018193
- Volunteers
- 300 people, healthy volunteers welcome
- Sponsor
- Capital Medical University
High Altitude
High Altitude Muscle Recovery
To understand alterations in glycogen and molecular regulation of skeletal muscle glucose uptake, glycogen synthesis, and muscle protein recovery when consuming CHO (glucose) or CHO+PRO (glucose + whey) post-exercise during…
- Trial name
- HAMR (NCT06392373)
- Testing
- CHO+PRO, CHO
- Where
- United States
- Volunteers
- 8 people, healthy volunteers welcome
- Sponsor
- United States Army Research Institute of Environmental Medicine
Hypertensive Disorder of Pregnancy, Pulmonary Arterial Hypertension
A Prospective Longitudinal Observational Cohort Study of Pregnant Women Residing at High Altitude in Bolivia
In this study, the investigators will follow two small cohorts of pregnant women: a cohort of healthy women with uncomplicated pregnancies residing at high altitude, a control group of healthy women with uncomplicated pregnancies…
- Conditions
- Hypertensive Disorder of Pregnancy, Pulmonary Arterial Hypertension, Intrauterine Growth Restriction
- Trial name
- NCT07312227
- Where
- 2 sites in United States, Bolivia
- Volunteers
- 27 people, healthy volunteers welcome
- Sponsor
- Massachusetts General Hospital
High Altitude Pulmonary Hypertension, Sleep Apnea
Sleep Related Breathing Disturbances and High Altitude Pulmonary Hypertension in Kyrgyz Highlanders
High altitude pulmonary hypertension, a form of altitude illness that occurs in long-term residents at altitudes >2500 m, is characterized by dyspnea, hypoxemia, impaired exercise performance and hypertension in the pulmonary…
- Trial name
- NCT01621061
- Where
- Kyrgyzstan
- Volunteers
- 125 people, healthy volunteers welcome
- Sponsor
- University of Zurich