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Oxygen study aims to uncover hidden heart risks in breathing disorders

NCT ID NCT05606406

Knowledge-focused Sponsor: University of Miami Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled This study
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Aug 04, 2026 · Updated 2 times

Summary

This study will test how changes in oxygen levels affect the heart's electrical signals in 70 people, some with oxygen dependence and some healthy. Participants will receive increasing amounts of oxygen at night while their heart activity is monitored. The goal is to better understand the link between low oxygen and heart rhythm changes.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
Nocturnal oxygen
What this could lead to
If successful, this could help doctors better understand how low oxygen affects the heart, potentially improving care for people with COPD or other breathing problems.
What could go wrong
This is a small, early-stage study (70 people) that only measures heart signals, not health outcomes. It may not lead to any direct treatment or change in care.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Expected to start

May 2026

An estimate. Start dates often move.

Finished

Jul 2026

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 to 70 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Healthy Participants Inclusion Criteria: • Ability to provide consent Exclusion Criteria: * BMI \> 40 kg/m2 * Prevalent myocardial infarction, coronary revascularization, heart failure, and stroke * Unstable medical conditions that may preclude enrollment in the protocol such as: uncontrolled angina and/or congestive heart failure, uncontrolled blood pressure or resistant hypertension, cancer, and active psychiatric disease (e.g., major depression) Nocturnal Hypoxemia Inclusion Criteria: * Ability to provide consent * Chronic respiratory condition resting Sat \< 95% off oxygen Exclusion Criteria: * BMI \> 40 kg/m2 * Prevalent myocardial infarction, coronary revascularization, heart failure, and stroke * Unstable medical conditions that may preclude enrollment in the protocol such as: uncontrolled angina and/or congestive heart failure, uncontrolled blood pressure or resistant hypertension, severe chronic obstructive pulmonary disease, cancer, and active psychiatric disease (e.g., major depression)

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Conditions

The condition(s) this trial relates to.

chronic obstructive pulmonary disease COPD, severe early onset Hypoxia

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Hypoxia Pulmonary disease, chronic obstructive

Contacts and locations

Locations

  • University of Miami

    Miami, Florida, 33136, United States

More trials for these conditions

Other studies related to the condition(s) this trial covers.