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Could a simple breathing workout boost heart failure Patients' stamina?

NCT ID NCT07672041

Symptom relief Sponsor: Universidad Nacional Andres Bello 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 This study
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 Results may not be published yet.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
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This status has not been confirmed recently, so it may be out of date.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 Jun 27, 2026

Summary

This study tests a new type of breathing muscle training for people with heart failure. 108 participants will either do the new breathing exercise, a standard one, or usual care for 8 weeks. Researchers will measure if it improves exercise capacity, breathing strength, and quality of life.

What this could mean

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

Active substance
Inspiratory muscle training with tapered resistive load (POWERbreathe KH2 device)
What this could lead to
If successful, this could offer a more effective breathing exercise technique to help heart failure patients breathe easier, exercise more, and feel better day-to-day.
What could go wrong
This is an early-stage trial with only 108 participants, so results may not apply to all heart failure patients. The training requires consistent effort, and benefits may be modest or no better than standard breathing exercises.

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.

Participants

About 108 people

The number the study aims to enrol. It can still change while the study runs.

Expected to start

Jun 2026

An estimate. Start dates often move.

Expected to finish

Jul 2028

An estimate. End dates often move.

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 80 years

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

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.

Inclusion Criteria: * History of symptomatic heart failure (NYHA functional class I and III). * Participants able to understand and respond to the instructions given in the study * Participants with stable disease at the moment of inclusion in this study. * Unaltered dose and type of medication up to three months before the start of the study Exclusion Criteria: * Participants unable to perform a valid baseline cardiopulmonary exercise test. * Participants with unstable angina, acute myocardial infarction, and/or heart surgery within the past three months. * Participants with other concomitant cardiac or neurological disease. * Participants with difficulties in maintaining a proper mouth seal or unable to avoid air leakage during pulmonary function testing. * Participants in other non-pharmacological study will be also excluded. * Current smokers. * Cardiac acute decompensation.

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Conditions

The condition(s) this trial relates to.

heart failure

As listed by the trial registrant

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

Heart failure

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Centro de Salud Sports Medicina Deportiva

    Viña del Mar, Valparaiso, 2372067, Chile

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