Efficacy and Safety of Saccharomyces Boulardii in Treatment of Acute Diarrhea in Children Aged 6 Months to 5 Years Old

September 8, 2026 updated by: Nguyễn Thị Phương Thão, Can Tho University of Medicine and Pharmacy
This study aimed to evaluate the effectiveness of saccharomyces-based treatment in children with acute diarrhea aged 6 months to 5 years compared to children treated with standard methods.

Study Overview

Detailed Description

A total of 206 children diagnosed with acute diarrhea will be evaluated and divided into two groups based on a random distribution list: Group A and Group B.

Group A will be treated with standard methods including fluid replacement and zinc according to the Ministry of Health's protocol.

Group B will be treated similarly to Group A, but with the addition of Saccharomyces boulardii at a dose of 250 to 750 mg per day until discharge.

Both groups of children will receive the same counseling and monitoring, with guidance provided to parents.

Caregivers are advised to record symptoms and stool diaries daily.

Study Type

Interventional

Enrollment (Estimated)

206

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact Backup

Study Locations

      • Can Tho, Vietnam, 900000
        • Can Tho University of Medicine and Pharmacy
        • Contact:

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Child

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  • Age from 6 months to 5 years old
  • Children are diagnosed with acute diarrhea according to WHO criteria.

Exclusion Criteria:

  • Bloody, mucous stools.
  • Signs of sepsis requiring admission to the Intensive Care Unit.
  • Currently suffering from chronic diseases such as cow's milk protein allergy, nephrotic syndrome, immunodeficiency, and systemic diseases.
  • Currently using immunosuppressant drugs.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Saccharomyces boulardii
Saccharomyces boulardii is a type of yeast that helps to quickly restore the intestinal mucosal barrier and the gut microbiome, significantly shortening hospital stays.
Children will receive standard treatment including fluid and zinc supplementation. In addition, they will receive Saccharomyces boulardii supplementation from admission to discharge.
Active Comparator: Standard treatment includes fluid replacement and zinc supplementation.
Treatment should follow standard protocols with fluid replacement and zinc supplementation, but no additional Saccharomyces boulardii should be added until discharge.
Children will be treated with standard methods involving fluid and zinc supplementation, without the use of any probiotics.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Duration of diarrhea
Time Frame: Immediately after the intervention

The cessation of acute diarrhea is determined when children met following criteria:

  1. Passing soft or formed stools twice in a row.
  2. No bowel movements recorded for 12 consecutive hours.
  3. Stool consistency returns to normal, corresponding to categories 3 to 5 on the Bristol stool scale.
Immediately after the intervention
The frequency of stool
Time Frame: At day 1, 3, 5
Total number of bowel movements per day
At day 1, 3, 5
Stool consistency assessed by Bristol stool chart
Time Frame: At day 1, 3, 5
The Bristol stool chart has 7 pictures of stool appearance. The number 1 mean hard stool and number 7 mean watery stool.
At day 1, 3, 5

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Length of hospitalization
Time Frame: Immediately after the intervention
The total length of hospitalization, measured in days
Immediately after the intervention
Adverse events
Time Frame: Immediately after the intervention
The occurrence of adverse events during treatment, including such as rash and bloating.
Immediately after the intervention
Cost effectiveness
Time Frame: Immediately after the intervention
Total Cost per child from date of admission until discharge
Immediately after the intervention
Rate of Hospital readmission
Time Frame: At day 14 and 28 after discharge from the hospital.
The proportion of participants who were readmitted to the hospital after discharge
At day 14 and 28 after discharge from the hospital.

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Study Chair: Thao Thi Phuong Nguyen, M.D, Can Tho University of Medicine and Pharmacy

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Estimated)

August 31, 2026

Primary Completion (Estimated)

August 30, 2028

Study Completion (Estimated)

August 30, 2028

Study Registration Dates

First Submitted

August 31, 2026

First Submitted That Met QC Criteria

September 8, 2026

First Posted (Actual)

September 10, 2026

Study Record Updates

Last Update Posted (Actual)

September 10, 2026

Last Update Submitted That Met QC Criteria

September 8, 2026

Last Verified

September 1, 2026

More Information

Terms related to this study

Other Study ID Numbers

  • 2857/QĐ-ĐHYDCT

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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