Independent directory Public ClinicalTrials.gov records United States
Clear filters
ClinicalTrials.gov public records Last synced Jun 10, 2026, 6:18 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 25–30 of 6 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Effect of an H1 Receptor Antagonist on Exercise Performance in Hypoxia

NCT03192488
Conditions
Hypoxia, Altitude
Interventions
Cetirizine, Placebo oral capsule, Hypoxia
Drug · Other
Lead sponsor
Indiana University
Other
Eligibility
18 Years to 35 Years
Enrollment
13 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Bloomington, Indiana
Recruiting Not applicable Interventional Accepts healthy volunteers

Effects of Breathing Training and Nitrate on Exercise at Simulated Altitude

NCT07216755
Conditions
Healthy Adults, Mechanical Ventilation Dependence, Hypoxia, Exercise Training, Exercise Intolerance, Dietary Supplement, Nitrate Supplementation, Inspiratory Muscle Training
Interventions
Respiratory Muscle Training (RMT), Sham Respiratory Muscle Training, Dietary Supplement: Beetroot Juice Concentrate, placebo beverage
Device · Dietary Supplement
Lead sponsor
Embry-Riddle Aeronautical University
Other
Eligibility
18 Years to 40 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2028
U.S. locations
1
States / cities
Daytona Beach, Florida
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Rapid Acclimatization to Hypoxia at Altitude

NCT01702025
Conditions
Physiological Function in Low Oxygen Environment
Interventions
Placebo, Aminophylline, Methazolamide, Aminophylline+Methazolamide
Drug
Lead sponsor
Colorado State University
Other
Eligibility
18 Years to 40 Years
Enrollment
41 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012
U.S. locations
1
States / cities
Fort Collins, Colorado
Terminated Phase 4 Interventional Accepts healthy volunteers Results available

Induced Changes in Ventilatory Responsiveness and Altitude Exposure

NCT01241513
Conditions
Effects of High Altitude, Hypoxia, Inadequate or Impaired Breathing Pattern or Ventilation, Abnormal Blood Oxygen Pressure
Interventions
NAC, Placebo
Drug
Lead sponsor
United States Army Research Institute of Environmental Medicine
Federal
Eligibility
18 Years to 39 Years
Enrollment
21 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2013
U.S. locations
1
States / cities
Natick, Massachusetts
Conditions
Altitude Hypoxia
Interventions
Simulated altitude, Placebo simulated altitude
Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 70 Years
Enrollment
71 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2023
U.S. locations
1
States / cities
Scottsdale, Arizona
Conditions
Healthy Volunteers With Induced Hypoxia
Interventions
Trans Sodium Crocetinate
Drug
Lead sponsor
Diffusion Pharmaceuticals Inc
Industry
Eligibility
18 Years to 40 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Durham, North Carolina