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Can a bacterial extract shield preterm babies from lung infections?

NCT ID NCT05063149

Prevention Sponsor: Franciscus Gasthuis Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
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 Results may not be published yet.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
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This status has not been confirmed recently, so it may be out of date.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 Sep 14, 2026 · Last updated Sep 15, 2026 · Updated 1 time

Summary

Researchers are testing whether a bacterial lysate, a mix of inactivated bacteria, can reduce respiratory tract infections and wheezing in late-moderate preterm infants during their first years of life. The trial enrolls 500 infants born between 30 and 35 weeks of gestation, giving them either the bacterial lysate or a placebo. Parents record symptoms through questionnaires to track infections and wheezing episodes.

What this could mean

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

Active substance
Bacterial lysate (Broncho-Vaxom, OM-85), a mix of inactivated bacteria given as a capsule powder
What this could lead to
If it works, preterm infants could have fewer respiratory infections and less wheezing, potentially reducing hospital visits and breathing problems in early childhood.
What could go wrong
The treatment may not reduce infections or wheezing, and some infants may still get sick. The trial is large enough to show real effects, but results may not apply to all preterm babies.

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

Phase 3

Large-scale testing in a bigger group. Usually the last step before a treatment can be approved.

Participants

About 500 people

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

Started

Mar 2022

Expected to finish

Dec 2030

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

6 to 10 weeks

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: * Gestational age at delivery between 30+0 and 35+6 weeks * Postnatal age at least 6 weeks at randomization \& postmenstrual age at least 37 weeks * Written informed consent by both parents or formal caregivers Exclusion Criteria: * Underlying other severe respiratory disease such as broncho-pulmonary dysplasia (unexpected in this group); hemodynamic significant cardiac disease; immunodefi-ciency; severe failure to thrive; birth asphyxia with predicted poor neurological out-come; syndrome or serious congenital disorder. * Maternal TNF-alpha inhibitors or other immunosuppression during pregnancy and/or breastfeeding * Parents unable to speak and read Dutch/English language * Known allergic hypersensitivity to the active ingredients/substance or to any of the excipients.

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Conditions

The condition(s) this trial relates to.

Premature Birth Respiratory Sounds respiratory tract infectious disorder

As listed by the trial registrant

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

LRTI Premature Wheezing

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

  • Franciscus Gasthuis & Vlietland

    RECRUITING

    Rotterdam, South Holland, 3045PM, Netherlands

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