Understanding how oxygen toxicity affects scuba divers
Official title: Applied Physiology of Oxygen Toxicity: Mechanisms in Humans
Run by Duke University · NCT05761756 · Data updated 2026-11-12
This study is testing how different factors like exercise, sleep, and medication affect the risk of oxygen toxicity in scuba divers.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 18 Years to 45 Years |
| Sex | All |
| Enrollment | 62 (estimated) |
| Sponsor | Duke University Academic / other |
| Locations | 1 site (Durham, North Carolina) |
| Status | Recruiting |
| Started | November 28, 2023 |
| Main results expected | December 31, 2026 |
| Study ends | December 31, 2026 |
| Registry record updated | October 21, 2026 |
| Trial ID | NCT05761756 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates for this study are healthy non-smoking individuals aged 18-45 with a specific level of aerobic fitness.
✕Probably not a fit
Patients with pre-existing cardiorespiratory or neuromuscular diseases, or those who are pregnant, may not benefit from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This clinical trial aims to investigate the mechanisms of oxygen toxicity in scuba divers by examining how respiratory muscle training, environmental factors like sleep deprivation and medication use, and immersion in water influence the risk of developing oxygen toxicity. Participants will undergo health screenings, respiratory function tests, and will engage in exercise under various conditions, including dry and underwater settings. The study will compare participants' performance before and after these interventions to identify any changes related to oxygen toxicity.
Why it matters
Potential benefit: If successful, this study could lead to improved safety protocols and training methods for scuba divers, reducing the risk of oxygen toxicity.
How similar studies have gone: While studies on oxygen toxicity exist, this specific approach focusing on the interplay of various factors in scuba divers is relatively novel.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Equal numbers of male and female * Non-smokers * Aged 18-45 years * Males will be required to have VO2 peak \> or equal to 35 mL/kg min * and females \> or equal to 30 mL/kg min Exclusion Criteria: * Pregnancy * Cardiorespiratory disease, including hypertension * Neuromuscular disease * Anemia * History of hemoglobinopathy, including sick cell disease and trait
Where it's running
-
Duke University Health Sustem
Durham, North Carolina, United States Recruiting
Study contacts
- Principal investigator: Richard Moon, MD — Duke University
- Study coordinator: Richard Moon, MD
- Email: Richard.moon@duke.edu
- Phone: 919-613-8881
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.