Clinical trial Recruiting at 1 site Interventional Ages 18 to 59

LcS-fermented milk for constipation in Filipino adults

Official title: The Efficacy of Fermented Milk Drink With Lacticaseibacillus Paracasei Strain Shirota (LcS) on Relieving Constipation-Related Symptoms of Filipino Adults

Run by University of Santo Tomas · NCT07083596 · Data updated 2026-11-12

This trial will test whether a daily probiotic drink containing Lacticaseibacillus paracasei strain Shirota (LcS) helps Filipino adults with constipation get softer stools and more regular bowel movements and reduce gastrointestinal discomfort.

Quick facts

Study typeInterventional
Ages18 Years to 59 Years
SexAll
Enrollment60 (estimated)
SponsorUniversity of Santo Tomas
Academic / other
Locations1 site (Manila, Manila)
StatusRecruiting
StartedApril 22, 2026
Main results expectedSeptember 30, 2026
Study endsOctober 2026
Registry record updatedMay 4, 2026
Trial IDNCT07083596 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Filipino men and women aged 18–59 who are otherwise apparently healthy and have hard or lumpy stools (Bristol 1–2) in at least 25% of weekly bowel movements and can store the product cold at home are ideal candidates.

Probably not a fit

People with constipation from organic or neurologic causes, recent antibiotic use, high habitual fiber intake, dairy allergy or lactose intolerance, pregnancy or major chronic illnesses are unlikely to benefit or are excluded.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

Adults aged 18–59 with constipation-related symptoms will be enrolled at the University of Santo Tomas and assigned to either a daily LcS probiotic drink or a control group for four weeks. Participants will keep their usual physical activity and consume the study drink once a day while researchers track stool consistency (Bristol Stool Form Scale), stool frequency and duration, and gastrointestinal discomfort. Key exclusions include recent antibiotic use, high-fiber diets, dairy allergy or lactose intolerance, pregnancy, and chronic diseases that could affect results. Outcomes after four weeks in the probiotic group will be compared to the control group to see if there are meaningful differences.

Why it matters

Potential benefit: If successful, the probiotic drink could provide a simple daily option to soften stools, increase bowel frequency, and reduce gastrointestinal discomfort in adults with constipation.

How similar studies have gone: Previous studies of probiotics, including formulations with LcS, have shown mixed but sometimes positive effects on stool frequency and consistency in adults with constipation.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Filipino adult male or female aged 18 to 59 years old
* Apparently healthy adults with constipation-related symptoms of hard to lumpy stools (Bristol Stool Form Scale 1-2) in 25% or more of defecations in a week
* With cold storage at home

Exclusion Criteria:

1. Habitual intake of food items containing probiotics and prebiotics as food supplements (previous 3 months, at least three times per week)
2. Constipation due to organic or neurologic origin
3. High fiber intake (\>30 g/day)
4. Pregnant or lactating
5. Allergy to dairy products and/or lactose intolerance
6. Use of laxatives, anticholinergics and medications for constipation or diarrhea within the past three months
7. Use of antibiotics within the past two weeks
8. Presence of chronic diseases such as diabetes mellitus and its complications, cardiovascular diseases, kidney problems
9. GI condition that may interfere with the evaluation of the outcome such as hemorrhoids, intestinal obstruction and inflammatory bowel diseases
10. Recent history of any gastrointestinal surgery
11. Have pre-existing medical conditions like hypo- or hyperthyroidism and congenital abnormalities
12. Participation in another study with test product two months prior the study

Where it's running

  • University of Santo Tomas
    Manila, Manila, Philippines
    Recruiting

Study contacts

  • Principal investigator: Diane S MENDOZA-SARMIENTO, Ph.D in Health Research — University of Santo Tomas
  • Study coordinator: Diane S Mendoza-Sarmiento, Ph.D
  • Email: dsmendoza@ust.edu.ph
  • Phone: +639088738336

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.