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Could probiotics calm rosacea? new trial tests daily capsules

NCT ID NCT05815511

Disease control Sponsor: Bionou Research, S.L. 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 26, 2026 · Last updated Jun 26, 2026

Summary

This study tested whether a daily probiotic capsule could improve rosacea, a skin condition causing redness and bumps. Seventy adults with papulopustular rosacea took either the probiotic or a placebo for 12 weeks. Researchers measured changes in skin severity using a standard scale.

What this could mean

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

Active substance
probiotic mixture
What this could lead to
If it works, this could offer a simple, natural supplement option to help manage rosacea symptoms.
What could go wrong
This is a small, early-stage trial with no phase designation. The effect may be small or no better than placebo, and results may not apply to all rosacea types.

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

70 people

The number who actually took part.

Started

Oct 2022

Finished

Jul 2025

Lead sponsor

A research network

The lead sponsor is a research network or cooperative group.

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: * Patients of both sexes of an age equal to or greater than 18 years. * Patients diagnosed with papulopustular rosacea with a minimum score of 2 points according to the Investigator's Global Assessment (IGA) index. * Signature of informed consent by the patient Exclusion Criteria: * Pregnant, lactating, and/or women who do not agree to use an effective contraceptive method during the development of the study. * Allergy and/or intolerance to any of the components of the product under study. * Consumption of antibiotics in the previous two weeks. * Consumption of probiotics in the previous two months. * Isotretinoin use in the previous six months. * Light procedures (IPL, laser, Kleresca) in the previous three months. * Participation in other clinical studies in the previous two months. * Other dermatological pathologies.

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Conditions

The condition(s) this trial relates to.

rosacea

As listed by the trial registrant

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

Rosacea Rosacea papular type Rosacea, papulopustular

Contacts and locations

Locations

  • Eguren Dermatology and Aesthetics Clinic

    Madrid, Madrid, 28006, Spain

  • Gavín Dermatologists Clinic

    Vigo, Pontevedra, 36201, Spain

  • MiBioPath UCAM Research Group

    Murcia, Murcia, 30107, Spain

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