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Can probiotics get things moving? new trial aims to find out

NCT ID NCT07462494

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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study tests whether a daily probiotic supplement can help relieve constipation in adults. Thirty participants will take either a probiotic or a placebo for 8 weeks. Researchers will track changes in stool consistency to see if the probiotics improve bowel function.

What this could mean

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

Active substance
Probiotics (GUT99)
What this could lead to
If it works, this could point toward a simple, over-the-counter option for managing constipation without medication.
What could go wrong
This is a very small, early-stage trial with only 30 people. Results may not apply to everyone, and the effect might be no better than a placebo.

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

About 30 people

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

Expected to start

Jun 2026

An estimate. Start dates often move.

Expected to finish

Dec 2026

An estimate. End dates often move.

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

18 to 65 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: 1. Aged 18-65 years. 2. Patients with constipation, defined as fewer than three bowel movements per week and/or Bristol Stool Form Scale (BSFS) types 1-2. 3. Able to comply with the study protocol and complete the study procedures. 4. Participants who have voluntarily signed the informed consent form. 5. Participants (including male participants) must have no plans for pregnancy from 14 days before screening until 6 months after the end of the study and must agree to use effective contraception during this period. \- Exclusion Criteria: 1. Individuals who have recently taken products with similar functions to the investigational product that may affect the evaluation of study outcomes. 2. Participants who plan to change their dietary habits during the study period. 3. Patients with severe allergies or immunodeficiency. 4. Women who are pregnant, breastfeeding, or planning to become pregnant. 5. Patients with severe diseases of major organs such as the cardiovascular system, lungs, liver, or kidneys, or those with severe metabolic diseases (e.g., diabetes or thyroid disorders), malignant tumors, or severe immune system diseases. 6. Individuals who have used antibiotics within the past two weeks. 7. Individuals with severe psychological or psychiatric disorders. 8. Participants who fail to take the investigational product as required or fail to attend scheduled follow-up visits, resulting in an inability to determine treatment efficacy. 9. Any other participants considered unsuitable for participation in the study by the investigator. \-

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Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

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

How to take part

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  1. 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 ↗

  2. A doctor treating you

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More trials for these conditions

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