NCT07135362

Brief Summary

The objective of this study is to evaluate whether the TCI604 probiotics has the potential to enhance human gut function and alleviate constipation.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
60

participants targeted

Target at P25-P50 for not_applicable

Timeline
3mo left

Started Aug 2025

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress76%
Aug 2025Jul 2026

First Submitted

Initial submission to the registry

August 7, 2025

Completed
4 days until next milestone

Study Start

First participant enrolled

August 11, 2025

Completed
11 days until next milestone

First Posted

Study publicly available on registry

August 22, 2025

Completed
9 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 31, 2026

Expected
2 months until next milestone

Study Completion

Last participant's last visit for all outcomes

July 31, 2026

Last Updated

August 22, 2025

Status Verified

August 1, 2025

Enrollment Period

10 months

First QC Date

August 7, 2025

Last Update Submit

August 18, 2025

Conditions

Keywords

Bifidobacterium animalis subsp. lactis

Outcome Measures

Primary Outcomes (2)

  • The change of stool form

    The stool type will be assessed by The Bristol Stool Form Scale (BSFS). The BSFS is a scale that classifies stools, ranging from the hardest (type 1) to the softest (type 7).

    Week 0 (Baseline), Week 2, Week 4

  • The change of bowel movement and gastrointestinal discomforts

    The Gastrointestinal Symptom Rating Scale (GSRS) will be utilized to assess the bowel movement and gastrointestinal discomforts. The GSRS consists of 15 items, each rated on a 7-point Likert scale. A higher score indicates more severe and frequent symptoms.The total GSRS score is calculated by taking the average score of the five symptom categories- Reflux, Abdominal Pain, Indigestion, Diarrhea, and Constipation- summing them up, and then dividing the total by five to obtain the overall mean score.

    Week 0 (Baseline), Week 2, Week 4

Secondary Outcomes (9)

  • The change of intestinal microbiota

    Week 0 (Baseline), Week 4

  • The change of serum Interleukin-6 level

    Week 0 (Baseline), Week 4

  • The change of serum Interleukin-8 level

    Week 0 (Baseline), Week 4

  • The change of serum Interleukin-10 level

    Week 0 (Baseline), Week 4

  • The change of serum Interleukin-17A level

    Week 0 (Baseline), Week 4

  • +4 more secondary outcomes

Other Outcomes (15)

  • The change of Body weight

    Week 0 (Baseline), Week 4

  • The change of Body Mass Index

    Week 0 (Baseline), Week 4

  • The change of Percent Body Fat

    Week 0 (Baseline), Week 4

  • +12 more other outcomes

Study Arms (2)

Placebo

PLACEBO COMPARATOR

Taking 1 sachet of the testing sample with water every morning before breakfast for 4 consecutive weeks

Dietary Supplement: Placebo

TCI604 probiotics

EXPERIMENTAL

Taking 1 sachet of the testing sample with water every morning before breakfast for 4 consecutive weeks

Dietary Supplement: TCI604 probiotics

Interventions

TCI604 probioticsDIETARY_SUPPLEMENT

TCI604 probiotics sachet

Also known as: Bifidobacterium animalis subsp. lactis TCI604
TCI604 probiotics
PlaceboDIETARY_SUPPLEMENT

Placebo sachet

Placebo

Eligibility Criteria

Age18 Years - 65 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Male or non-pregnant female subjects aged 18 to 65 who are willing to sign the informed consent form;
  • Diagnosed with functional constipation as assessed by a physician;
  • Non-pregnant females who agree to use physical contraceptive methods during the study period (e.g., condoms, intrauterine devices);
  • No history of organ transplantation, epilepsy or seizures, liver or kidney disease, malignancy, psychiatric disorders, alcohol or drug abuse, or other major organic diseases (as determined by medical history).

You may not qualify if:

  • Use of probiotics, gastrointestinal health supplements, medications, or antibiotics within 30 days prior to the study;
  • Presence of chronic gastrointestinal diseases (e.g., irritable bowel syndrome \[IBS\], inflammatory bowel disease \[IBD\], Crohn's disease, celiac disease, bowel control problems/fecal incontinence, pancreatitis, peptic ulcers, colorectal cancer, short bowel syndrome, ulcerative colitis);
  • History of gastrointestinal or major surgery;
  • Lactose intolerance;
  • Chronic diarrhea;
  • Pregnant or breastfeeding women;
  • Known allergy to any components of the study product.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

National Taiwan University Hospital

Taipei, 100, Taiwan

RECRUITING

MeSH Terms

Conditions

Constipation

Condition Hierarchy (Ancestors)

Signs and Symptoms, DigestiveSigns and SymptomsPathological Conditions, Signs and Symptoms

Study Officials

  • Jaw-Shiun Tsai, Doctor

    National Taiwan University Hospital

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

August 7, 2025

First Posted

August 22, 2025

Study Start

August 11, 2025

Primary Completion (Estimated)

May 31, 2026

Study Completion (Estimated)

July 31, 2026

Last Updated

August 22, 2025

Record last verified: 2025-08

Locations