Recruiting

HBOT

Sponsor:

University of Texas at Austin

Code:

NCT07361861

Conditions

Cardiovascular Fitness

Inflammation

Eligibility Criteria

Sex: All

Age: 30 - 60

Healthy Volunteers: Accepted

Interventions

Hyperbaric Oxygen Therapy

Study Details

Brief summary:

The purpose of this study is to determine whether hyperbaric oxygen therapy (HBOT) at 1.75 atmospheres of pressure (ATA) improves cardiovascular fitness (VO₂ max) and reduces inflammation in healthy adults. HBOT involves breathing pure oxygen in a pressurized chamber and is considered investigational for this use.

Recent research has shown that different HBOT pressures can have different effects on inflammation. Specifically, some inflammatory cytokines (measurable markers of inflammation in the body) appear to decrease at low pressures like 1.3 ATA, while a different set of cytokines responds better at higher pressures, such as 2.0 ATA.

Cytokines are small proteins that play a crucial role in cell signaling, particularly within the immune system. They help regulate inflammation, infection response, and overall immune function. While some cytokines promote inflammation to fight off threats, others help reduce inflammation when it's no longer needed. An imbalance in cytokines - especially excessive inflammatory cytokines - can contribute to chronic inflammation, cardiovascular disease, and other health issues.

In this study, we are testing an intermediate pressure - 1.75 ATA - to see if we can target both sets of cytokines at once. If successful, this approach could offer broader anti-inflammatory benefits.

We are also interested in how this intermediate pressure may improve VO₂ max, a key indicator of cardiovascular fitness. Since VO₂ max is strongly linked to heart health and overall longevity, finding a safe and effective way to improve it has meaningful implications not just for athletes, but for anyone looking to enhance their fitness and well-being.

Conditions

Cardiovascular Fitness

Inflammation

Study ID

NCT07361861

Start date

Jan, 2026

Status verified date

Jan, 2026

Completion date

Jul, 2026

Anticipated

Primary completion date

May, 2026

Anticipated

Eligibility Criteria

Eligibility Criteria

Sex: All

Age: 30 - 60

Healthy Volunteers: Accepted

Inclusion Criteria:

  • physically active individuals with no history of chronic illness or HBOT exposure within the last three months.

Exclusion Criteria:

  • individuals with contraindications to HBOT, including lung diseases or claustrophobia.

Study Design

Enrollment

30 participants

Anticipated

Intervention Model

Single group

Primary purpose

Other

Interventions and Outcome Measures

Arms

experimental: Hyperbaric Oxygen Therapy 1.75 atmospheres

Will complete 24 HBOT sessions, each lasting 100 minutes, over 8 weeks.

Interventions

Hyperbaric Oxygen Therapy

24 Hyperbaric Oxygen Therapy, each lasting 100 minutes, 3 times a week for 8 weeks.

Primary outcome measure

  • Cytokine levels [ Time Frame: From enrollment to 4 weeks after the end of treatment (12 weeks after first treatment). ]
  • VO2 max testing [ Time Frame: From enrollment to 4 weeks post treatment (12 weeks after first treatment) ]

Central Contacts and Locations

Central contacts

Emma Lehrer, BSA Biology

7379321934elehrer@utexas.edu

Locations

ATX Hyperbarics

Recruiting

Austin, Texas, United States, 78746

More Information

Sponsor

University of Texas at Austin

Last update posted

Jan 23, 2026

Last verified

Jan, 2026

Trial information was received from ClinicalTrials.gov and was last updated on 2026-10-02. This information was provided to ClinicalTrials.gov by University of Texas at Austin on 2026-01-23. Recruitment status is synced daily from ClinicalTrials.gov and may not reflect the sponsor's current status. Confirm during your call.