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Probiotic pill shows promise for immune boost in healthy adults

NCT ID NCT07433855

Symptom relief Sponsor: Soon Chun Hyang University Source: ClinicalTrials.gov ↗

What the study statuses mean

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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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 a daily probiotic supplement (heat-treated Lactiplantibacillus plantarum LM1004) could improve immune function in 120 healthy adults aged 19 to 75. Participants took either the probiotic or a placebo for 8 weeks. The main goal was to measure changes in natural killer (NK) cell activity, a key part of the immune system. Researchers also looked at other immune markers and safety. The results help determine if this probiotic is safe and effective for supporting immune health.

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

120 people

The number who actually took part.

Started

Aug 2023

Finished

Nov 2023

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

19 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: * Healthy male or female adults aged 19 to 75 years * Able to understand the study procedures and provide written informed consent * Willing to comply with the study protocol Exclusion Criteria: * History of chronic or serious medical conditions that could interfere with study participation * Use of medications or supplements that may affect immune function within the screening period * Pregnant or breastfeeding women * Participation in another clinical study within 3 months prior to screening

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As listed by the trial registrant

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

Immune function

Contacts and locations

Locations

  • Dong-A University Hospital

    Busan, South Korea

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