Clinical trials: Altitude
Athletic Performance, Physical Endurance
Event-Specific Adaptations to CrossFit and Running-Based HIIT in Elite Distance Runners at Moderate Altitude
The goal of this clinical trial is to compare the effects of two high-intensity training programs on physical performance and physiological adaptations in elite male middle- and long-distance runners aged 25 to 35 years who live…
- Conditions
- Athletic Performance, Physical Endurance, Altitude Training Adaptation, Aerobic Capacity
- Trial name
- NCT07675577
- Testing
- Running-Based High-Intensity Interval Training (HIIT), CrossFit-Based High-Intensity Training (CF)
- Where
- Iran
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- University of Sistan and Baluchestan
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
Diabetic Retinopathy (DR), Center-Involved Diabetic Macular Edema (CI-DME)
RGX-314 Gene Therapy Administered in the Suprachoroidal Space for Participants With Diabetic Retinopathy (DR) With and Without Center Involved-Diabetic Macular Edema (CI-DME)
ABBV-RGX-314 is being developed as a novel, potential one-time gene therapy treatment for the treatment of Diabetic Retinopathy (DR) with and without Center-Involved Diabetic Macular Edema (CI-DME).
- Trial name
- ALTITUDE® (NCT04567550)
- Testing
- ABBV-RGX-314 Dose 1, ABBV-RGX-314 Dose 2, ABBV-RGX-314 Dose 3
- Where
- 25 sites in United States
- Volunteers
- 139 people
- Sponsor
- AbbVie
Obesity, Breast Cancer
Simulated-altitude to Optimize Aerobic Exercise Among Breast Cancer Survivors With Limited Mobility
The study will evaluate the utility of hypoxic exercise training to improve cardiovascular and metabolic health among obese breast cancer survivors.
- Trial name
- NCT03029182
- Testing
- Walking+simulated-altitude, Walking (control)
- Where
- United States
- Volunteers
- 15 people
- Sponsor
- University of Alabama at Birmingham
Mountain Sickness
Safety Evaluation of Aminophylline and Methazolamide
This safety study is the first in a series of studies testing the application of the combination of aminophylline and methazolamide.
- Trial name
- NCT01587027
- Testing
- Aminophylline, Methazolamide, Aminophylline and Methazolamide
- Where
- United States
- Volunteers
- 16 people, healthy volunteers welcome
- Sponsor
- Poudre Valley Health System
Chronic Obstructive Pulmonary Disease
Effect of Acetazolamide on Sleep Related Breathing Disturbances in Patients With Respiratory Disease at Altitude
In this trial, the investigators will evaluate the effect of acetazolamide (375 mg per day) vs. placebo on sleep related breathing disturbances at altitude in patients with COPD.
- Trial name
- NCT03177850
- Testing
- ACETAZOLAMIDE oral capsule
- Where
- Kyrgyzstan
- Volunteers
- 185 people
- Sponsor
- University of Zurich
Health, Children, Only
Characteristics of Intestinal Bacteria and Their Effects on Growth and Immune Function in Children at High Altitude
Microbes and the human body maintain a complex relationship of interaction and influence. Different regions, altitudes, and dietary habits have different degrees of influence on the composition of children's intestinal flora.
- Conditions
- Health, Children, Only, Gut Microbiota
- Trial name
- NCT06157346
- Where
- China
- Volunteers
- 298 people, healthy volunteers welcome
- Sponsor
- Ruijin Hospital
Ketosis, Hypoxia
Effect of Ketone Ester Supplementation on Hypoxic Tolerance
This WP specifically aims to elucidate the effects of IEK on hypoxic tolerance and the development and severity of AMS symptoms, blood and tissue oxygenation status, as well as sleep quality during an episode of acute exposure to…
- Trial name
- NCT05588427
- Testing
- Ketone ester
- Where
- Belgium
- Volunteers
- 16 people, healthy volunteers welcome
- Sponsor
- KU Leuven
Pregnant, High Altitude
The Effect of Different Altitude Levels on Spinal Anesthesia in Cesarean Section Surgery
The aim of the researchers in this prospective study is to determine the differences, if any, in terms of anesthetic parameters among pregnant women who live at different altitudes and undergo cesarean section under neuraxial…
- Trial name
- altitude (NCT05715476)
- Testing
- cesarian surgery
- Where
- Turkey (Türkiye)
- Volunteers
- 150 people, healthy volunteers welcome
- Sponsor
- Giresun University
Precapillary Pulmonary Hypertension, Interstitial Lung Disease
Patients With Pulmonary Hypertension or Interstitial Lung Disease at Altitude - Effect of Oxygen on Breathing and Sleep
The purpose of this study is to investigate the effect of travelling to moderate altitude and of nocturnal oxygen therapy during a stay at moderate altitude on breathing and sleep of patients with pulmonary hypertension or with…
- Trial name
- NCT02150616
- Testing
- Moderate altitude sojourn, Low altitude sojourn, Oxygen
- Where
- Switzerland
- Volunteers
- 50 people
- Sponsor
- University of Zurich
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
Heart Rate Monitoring
Research Proposal on the Effects of Different Altitude Conditions on Human Time Perception.
The aim of this observational study is to investigate human time perception ability for different time intervals (540 ms, 1080 ms, 1620 ms, 2160 ms, 5 s, 10 s, 20 s, 50 s) under conditions of varying altitudes (500 m, 1000 m…
- Trial name
- NCT07402148
- Testing
- high-altitude environment
- Where
- China
- Volunteers
- 46 people, healthy volunteers welcome
- Sponsor
- Qilu Hospital of Shandong University
Hypoxia, Altitude Sickness
Cardio-respiratory Responses During Hypoxic Exercise in Individuals Born Prematurely
This project will consist of two studies, each investigating resting and exercise cardio-respiratory responses during exposure to hypoxia in individuals born prematurely and individuals born at full term of two different age…
- Conditions
- Hypoxia, Altitude Sickness, Tolerance
- Trial name
- PreTerm (NCT02780908)
- Testing
- Graded exercise testing, Resting testing
- Where
- 2 sites in Slovenia
- Volunteers
- 37 people, healthy volunteers welcome
- Sponsor
- Jozef Stefan Institute
Mountain Sickness
Three New Ideas to Protect Special Forces From the Stress of High Altitude
Acute Mountain Sickness (AMS) is a well-documented syndrome that affects 42% of non-acclimatized individuals traveling to altitudes above 10,000 feet.
- Trial name
- NCT02463357
- Testing
- Quercetin, Nifedipine extended release, Methazolamide
- Where
- United States
- Volunteers
- 148 people, healthy volunteers welcome
- Sponsor
- University of Colorado, Denver
High Altitude Pulmonary Hypertension, Sleep Apnea
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
- NCT03165019
- Where
- Kyrgyzstan
- Volunteers
- 165 people, healthy volunteers welcome
- Sponsor
- University of Zurich
Altitude Intolerance, High-Altitude Illness
Relationship Between Succinate Dehydrogenase Mutations and High-Altitude Illness
This study is is the first step of a full study named CHEMOGENE because it explores the genetic determinant of an alteration of the chemoreflex.
- Trial name
- NCT00202683
- Where
- France
- Volunteers
- 83 people, healthy volunteers welcome
- Sponsor
- Société Française de Cardiologie
Hypoxia, Hypoxia Brain
Study of the Effects of Acute Exposure to Moderate Altitude Hypoxia on Prospective Memory.
The goal of this study is to investigate whether prospective memory, i.e., memory for delayed intentions, is impaired at moderate altitude (4,000m).
- Conditions
- Hypoxia, Hypoxia Brain, Hypoxia Altitude Simulation Test, Hypoxia in Healthy Individuals
- Trial name
- HYPRO (NCT07585227)
- Testing
- Hypoxia exposure, Oxygen administration, Air administration
- Where
- France
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Direction Centrale du Service de Santé des Armées
High Altitude Effects, High Altitude Hypoxia
HighCycle Study: Acetazolamide, High Altitude and Plasma Volume
Each year, millions of people living at low altitude (< 1,000 m) travel to high altitude (≥ 2,500 m) for work, tourism, or sports activities.
- Conditions
- High Altitude Effects, High Altitude Hypoxia, Acute Mountain Sickness (AMS), Plasma Volume
- Trial name
- NCT07118462
- Testing
- Acetazolamide
- Where
- Kyrgyzstan
- Volunteers
- 270 people, healthy volunteers welcome
- Sponsor
- Centre d'Expertise sur l'Altitude EXALT
Chronic Obstructive Pulmonary Disease
Effect of Acetazolamide on Right Ventricular Function During Exercise in Patients With Respiratory Disease at Altitude
This trial will evaluate the effect of acetazolamide (375 mg per day) vs. placebo on right ventricular function during exercise at acute altitude exposure in patients with COPD.
- Trial name
- NCT03167034
- Testing
- ACETAZOLAMIDE oral capsule
- Where
- Kyrgyzstan
- Volunteers
- 110 people
- Sponsor
- University of Zurich
Altitude, Ultraviolet Rays
Ultraviolet Exposure, Antioxidant Use and Skin Erythema at Extreme High Altitude
With the increasing tourism and adventure travel into extreme environments comes the need to reassess the required protection against ultraviolet (UV) radiation and possible other oxidative stresses.
- Conditions
- Altitude, Ultraviolet Rays, Antioxidants, Oxidative Stress
- Trial name
- NCT00685438
- Where
- Nepal
- Volunteers
- 25 people, healthy volunteers welcome
- Sponsor
- Sunnybrook Health Sciences Centre