Gut bacteria booster shows promise for constipation relief
NCT ID NCT07152795
First seen Jun 26, 2026 · Last updated Jun 26, 2026
Summary
This study tested whether a daily probiotic called Weizmannia coagulans BC99 can improve chronic constipation. 90 adults with constipation took either the probiotic or a placebo for a period, and researchers tracked changes in stool form and gut bacteria. The goal was to see if the probiotic could help people have more regular, normal bowel movements.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Weizmannia coagulans BC99 (a probiotic)
- What this could lead to
- If it works, this could offer a natural, over-the-counter option to ease chronic constipation without laxatives.
- What could go wrong
- This is a small, completed trial with only 90 participants, so results may not apply to everyone. Probiotics can cause mild bloating or gas in some people.
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
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90 people
The number who actually took part.
- Started
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Apr 2024
- Finished
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Oct 2024
- Lead sponsor
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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
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18 to 70 years
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide 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. Chinese adults aged 18-70 years who meet the Rome IV diagnostic criteria for chronic constipation (duration of at least 6 months, with less than 3 bowel movements per week and/or Bristol Stool Scale types 1 and 2); 2. Not using laxatives rarely leads to loose stools; 3. The standard for irritable bowel syndrome is insufficient; 4. Research participants (including male subjects) who have no family planning within 14 days prior to screening and voluntarily take effective contraceptive measures within 6 months after the end of the trial; 5. Patients capable of understanding the clinical study and willing to comply with the study requirements and procedures; 6. Subjects who have signed the informed consent form. - Exclusion Criteria: (1) The use of probiotics, prebiotics, or antibiotics within 2 weeks of enrollment; (2) Regular use of a high-fiber diet, as measured by the recommended food score (RFS); (3) Regular use of medications affecting bowel habits, such as irritable bowel syndrome, functional bloating, and functional diarrhea; (4) Currently have, or have had in the past 2 years, any gastrointestinal conditions such as: Crohn's disease, celiac disease, Ulcerative colitis, Malignant tumor of the colon; (5) Medical history of cardiovascular, liver, or renal diseases; alcoholics; (6) Hypersensitivity to probiotics or the ingredients used in this study; (7) Pregnancy or breastfeeding; (8) Participation in another clinical trial in the 3 months before enrollment. \-
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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.
Contacts and locations
Locations
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Henan University of Science and Technolog
Luoyang, Henan, 462000, China
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