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Breathing training offers hope for COVID Long-Haulers with weak diaphragms

NCT ID NCT05582642

Symptom relief Sponsor: RWTH Aachen University 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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 looked at whether 6 weeks of special breathing exercises (inspiratory muscle training) can improve diaphragm strength and reduce shortness of breath in 18 COVID-19 survivors who still had trouble breathing. Participants had proven diaphragm weakness and no other explanation for their symptoms. The goal was to see if this simple training could ease their breathing difficulties.

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

18 people

The number who actually took part.

Started

Oct 2022

Finished

Jun 2024

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: * 18 patients with survived COVID-19, persistent otherwise unexplainable dyspnoea and proven diaphragm dysfunction * Patients aged at least 18 years, who are mentally and physically able to consent and participate into the study Exclusion Criteria: * Diagnosis of another disease, which causes a permanent increase in carbon dioxide level in the blood (chronic hypercapnia) or a permanent combined lung weakness (particularly a neuromuscular disease) * Body-mass-index (BMI) \>40 * Expected absence of active participation of the patient in study-related measurements * Alcohol or drug abuse * Metal implant in the body that is not MRI compatible (NON MRI compatible pacemaker, implantable defibrillator, cervical implants, e.g. brain pacemakers etc.) * Slipped disc * Epilepsy

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Conditions

The condition(s) this trial relates to.

COVID-19 injury respiratory paralysis

As listed by the trial registrant

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

COVID-19 Diaphragm injury

Contacts and locations

Locations

  • RWTH Aachen University

    Aachen, 52074, Germany

More trials for these conditions

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