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Could CO₂ baths heal stubborn diabetic foot sores?

NCT ID NCT07418073

Disease control Sponsor: University Medical Centre Ljubljana 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 tested whether adding carbon dioxide (CO₂) therapy to standard wound care helps heal recurrent diabetic foot ulcers. Thirty adults with diabetes and hard-to-heal ulcers received either standard care alone or standard care plus 20 sessions of CO₂ therapy over 4 weeks. The main goal was to see if more ulcers healed completely with the extra CO₂ treatment.

What this could mean

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

Active substance
transcutaneous gaseous carbon dioxide (CO₂) therapy
What this could lead to
If it works, this could offer a non-invasive add-on treatment to help heal stubborn diabetic foot ulcers faster.
What could go wrong
This is a small, early-phase trial with only 30 participants. Results may not apply to all patients, and the therapy may not prove better than standard care alone.

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

30 people

The number who actually took part.

Started

Sep 2024

Finished

Aug 2025

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 years and older

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: * diabetes mellitus type 1 or 2 * recurrent hard to heal DFU Exclusion Criteria: * KOPD stage IV * CKD stage IV * malignant diseases * pregnancy * infected ulcer at baseline * inability to comply with visits

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Conditions

The condition(s) this trial relates to.

Diabetic Foot Foot Ulcer ulcer of lower limbs

As listed by the trial registrant

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

Ulcer foot

Contacts and locations

Locations

  • UMC Ljubljana

    Ljubljana, Slovenia, 1000, Slovenia

More trials for these conditions

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