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Probiotic LP28 shows promise for fewer colds in seniors

NCT ID NCT06724185

Symptom relief Sponsor: Synbio Tech Inc. 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 taking a probiotic called LP28 can help older adults fight off colds and feel better. 102 people who had at least two colds in the past year took part. Researchers measured cold symptoms and immune cell levels to see if the probiotic made a difference.

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

102 people

The number who actually took part.

Started

Jul 2024

Finished

May 2026

Lead sponsor

A company

The lead sponsor is a pharmaceutical, biotech, or medical-device company.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

50 to 75 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

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: * Those who had symptoms of common cold or tonsillitis at least twice in the past year. Exclusion Criteria: * People who have liver, kidney, immune, or neoplastic diseases diagnosed by doctor. * People with mental illnesses such as schizophrenia or depression. * People who have allergic rhinitis. * People who have a current condition of drug or alcohol dependence. * Any person is deemed inappropriate by the researcher for the clinical trial.

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Conditions

The condition(s) this trial relates to.

common cold prevention target

As listed by the trial registrant

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

Common cold Immunity Probiotic

Contacts and locations

Locations

  • National Chung Hsing University

    Taichung, 402202, Taiwan

  • Taichung Veterans General Hospital

    Taichung, 407219, Taiwan

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