To Evaluate the Clinical Efficacy of Probiotics in Patients With the Breast Cancer

March 5, 2026 updated by: GenMont Biotech Incorporation

To Evaluate the Efficacy of Probiotics in Improvement and Prevention of Chemotherapy Associated Side Effectes in Patients With the Breast Cancer

Chemotherapy-associated side-effects would affect therapeutic effect, quality of life, and cause permanent harm to breast cancer patients. This study is designed to explore after consumption of probiotics of lactobacillus composite strain powder sachets for 6 months in breast cancer chemotherapy, and whether the improvement of meliorate the side effects, further assists patients completing the chemotherapy.

Study Overview

Status

Recruiting

Conditions

Detailed Description

In 2020, the incidence rate of women's breast cancer in Taiwan was up to 82.1% . The death rate increased to 16%; in 2021, the ranking rose to no.3, and the death rate grew up to 24.6%. In the decades, breast cancer gradually becomes the dominant malignant women's cancer in Taiwan. Besides the lumpectomy, chemotherapy is one of the dominant and important treatments for breast cancer. Beyond the effects of chemotherapy, several side effects rise up. The most common chemotherapy are anthracyclin drugs (doxorubicin and epirubicin) and taxane (docetaxel and paclitaxel ). There are common side effects including neutropenia, hair loss, vomiting, diarrhea, stomatitis, mucositis, peripheral neuropathy, dermatitis, nephrotoxicity, and hepatotoxicity. Currently, most treatments for chemotherapy-induced side effects are symptomatic treatment, but there is no good solution to prevent it.

Study Type

Interventional

Enrollment (Estimated)

100

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

      • Taipei, Taiwan
        • Recruiting
        • Mackay Memorial Hospital
        • Contact:
          • Po-Sheng Yang, MD, PhD

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

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Stage I-III breast patients using anthracycline-based and taxane-based chemotherapy (not limited before or after chemotherapy/surgery)
  • BMI > 18 kg/m^2
  • Age between 20 and 80 years old
  • Patients judged by physicians to participate in this trial and who are willing

Exclusion Criteria:

  • Pregnant or lactating female patients
  • Patients with bariatric surgery, gastrointestinal resections, Crohn's disease, celiac disease
  • BMI < 18 kg/m^2
  • Patient who have severe allergy to soybeans or peanuts
  • Those who are under 20 years old or over 80 years old

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: Supportive Care
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Placebo Comparator: Placebo group
Subjects received two placebo sachets per day
Same additives to Probiotic group but replace probiotics with corn starch and Maltodextrin.
Other Names:
  • Control group
Experimental: Probiotic group
Subjects received two probiotic sachets per day
Three-strain probiotic supplement includes Lactobacillus reuteri GMNL-89 (alive), Lactobacillus plantarum GMNL-141 (alive) and Lactobacillus paracasei GMNL-133 (alive).
Other Names:
  • Test group

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change from 12 weeks in the chemotherapy associated side-effects questionnaire at 24 weeks
Time Frame: 24 weeks
The questionnaire will finished to record the side effects, including nausea, vomiting, diarrhea, stomatitis, peripheral neuropathy, skin rashes, and hand-food syndrome before and after the treatment.
24 weeks

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change from 12 weeks in self-record of the FACT-G questionnaire (The Functional Assessment of Cancer Therapy - General; Version 4) at 24 weeks
Time Frame: 24 weeks
The FACT-G questionnaire will record the quality of life by subjects at 12-weeks and-24 weeks. There are 4 domains of quality of life will be measured, including physical well-being, social/family well-being, emotional well-being, functional well-being. All domains will sum as total score of 108, and each domain will also evaluated.
24 weeks
Variability in BMI (Body Mass Index)
Time Frame: 24 weeks
BMI will calculated with weight and height combined in kg/m^2. Measured every visit (week 0. 3. 6. 9. 12. 15. 18. 21. 24)
24 weeks
Change from baseline in levels of hs-CRP (high-sensitivity C-Reactive Protein) in mg/dL at 12 weeks
Time Frame: 12 weeks
Blood samples will collected to examine the variation of hs-CRP from baseline at 12 weeks.
12 weeks
Change from baseline in levels of hs-CRP (high-sensitivity C-Reactive Protein) in mg/dL at 24 weeks
Time Frame: 24 weeks
Blood samples will collected to examine the variation of hs-CRP from baseline at 24 weeks.
24 weeks
Change from baseline in levels of IL-6 (Interleukin-6) in pg/mL at 12 weeks
Time Frame: 12 weeks
Blood samples will collected to examine the variation of IL-6 from baseline at 12 weeks.
12 weeks
Change from baseline in levels of IL-6 (Interleukin-6) in pg/mL at 24 weeks
Time Frame: 24 weeks
Blood samples will collected to examine the variation of IL-6 from baseline at 24 weeks.
24 weeks
Change from baseline in levels of IL-10 (Interleukin-10) in pg/mL at 12 weeks
Time Frame: 12 weeks
Blood samples will collected to examine the variation of IL-10 from baseline at 12 weeks.
12 weeks
Change from baseline in levels of IL-10 (Interleukin-10) in pg/mL at 24 weeks
Time Frame: 24 weeks
Blood samples will collected to examine the variation of IL-10 from baseline at 24 weeks.
24 weeks
Change from baseline in levels of TNF-α (Tumor Necrosis Factor-α) in pg/mL at 12 weeks
Time Frame: 12 weeks
Blood samples will collected to examine the variation of TNF-α from baseline at 12 weeks.
12 weeks
Change from baseline in levels of TNF-α (Tumor Necrosis Factor-α) in pg/mL at 24 weeks
Time Frame: 24 weeks
Blood samples will collected to examine the variation of TNF-α from baseline at 24 weeks.
24 weeks
Change from baseline in gut microbiome at 12 weeks
Time Frame: 12 weeks
Fecal sample will collected to extract DNA from the intestinal microbiota to examine the variations of gut microbiome from baseline at 12 weeks by NGS (Next Generation Sequencing) analysis.
12 weeks
Change from baseline in gut microbiome at 24 weeks
Time Frame: 24 weeks
Fecal sample will collected to extract DNA from the intestinal microbiota to examine the variations of gut microbiome from baseline at 24 weeks by NGS (Next Generation Sequencing) analysis.
24 weeks
Variability in levels of ALT (Alanine Aminotransferase) in IU/L
Time Frame: 24 weeks
ALT levels will obtained from routine medical records every visit. (week 0. 3. 6. 9. 12. 15. 18. 21. 24)
24 weeks
Variability in levels of AST (Aspartate Aminotransferase) in IU/L
Time Frame: 24 weeks
AST levels will obtained from routine medical records every visit. (week 0. 3. 6. 9. 12. 15. 18. 21. 24)
24 weeks
Variability in levels of Creatinine in mg/dL
Time Frame: 24 weeks
Creatinine levels will obtained from routine medical records every visit. (week 0. 3. 6. 9. 12. 15. 18. 21. 24)
24 weeks
Variability in levels of Hb (Hemoglobin) in g/dL
Time Frame: 24 weeks
Hb levels will obtained from routine medical records every visit. (week 0. 3. 6. 9. 12. 15. 18. 21. 24)
24 weeks
Variability in levels of RBC (Red Blood Cell count) in 10^6/μL
Time Frame: 24 weeks
RBC levels will obtained from routine medical records every visit. (week 0. 3. 6. 9. 12. 15. 18. 21. 24)
24 weeks
Variability in levels of Ht (Hematocrite) in %
Time Frame: 24 weeks
Ht levels will obtained from routine medical records every visit. (week 0. 3. 6. 9. 12. 15. 18. 21. 24)
24 weeks
Variability in levels of WBC(White Blood Cell count) in 10^3/μL
Time Frame: 24 weeks
WBC levels will obtained from routine medical records every visit. (week 0. 3. 6. 9. 12. 15. 18. 21. 24)
24 weeks
Variability in levels of MCV (Mean Corpuscular Volume) in fL
Time Frame: 24 weeks
MCV levels will obtained from routine medical records every visit. (week 0. 3. 6. 9. 12. 15. 18. 21. 24)
24 weeks
Variability in levels of MCH (Mean Corpuscular Haemoglobin) in Pg
Time Frame: 24 weeks
MCH levels will obtained from routine medical records every visit. (week 0. 3. 6. 9. 12. 15. 18. 21. 24)
24 weeks
Variability in levels of MCHC (Mean Corpuscular Haemoglobin Concentration) in g/dL
Time Frame: 24 weeks
MCHC levels will obtained from routine medical records every visit. (week 0. 3. 6. 9. 12. 15. 18. 21. 24)
24 weeks
Variability in levels of ANC (Absolute Neutrophil Count) in mm^3
Time Frame: 24 weeks
Total neutrophils and WBC collected from routine medical records at each visit to calculate ANC levels. (week 0. 3. 6. 9. 12. 15. 18. 21. 24) ANC is calculated as 10 x WBC count in 1000s x (%Segment neutrophils + % bands neutrophils).
24 weeks
Variability in levels of platelet in 10^3/μL
Time Frame: 24 weeks
Platelet levels will obtained from routine medical records every visit. (week 0. 3. 6. 9. 12. 15. 18. 21. 24)
24 weeks

Collaborators and Investigators

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

Collaborators

Investigators

  • Principal Investigator: Po-Sheng Yang, MD, PhD, Mackay Memorial Hospital

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 (Actual)

April 8, 2024

Primary Completion (Estimated)

December 31, 2026

Study Completion (Estimated)

December 31, 2026

Study Registration Dates

First Submitted

September 6, 2023

First Submitted That Met QC Criteria

September 14, 2023

First Posted (Actual)

September 15, 2023

Study Record Updates

Last Update Posted (Actual)

March 6, 2026

Last Update Submitted That Met QC Criteria

March 5, 2026

Last Verified

March 1, 2026

More Information

Terms related to this study

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

product manufactured in and exported from the U.S.

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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