Study on the Enhancement of Intestinal and Immune Functions Through Probiotic Intervention
A Study on the Safety and Effectiveness of Bifidobacterium Longum Subsp. infantisBI45 in Improving Intestinal and Immune Functions
1 other identifier
interventional
90
1 country
1
Brief Summary
Evaluate the effectiveness and safety of Bifidobacterium longum subsp. infantis BI45 as a food supplement compared to a placebo in improving intestinal and immune functions in healthy adults.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable healthy
Started Mar 2025
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
March 3, 2025
CompletedFirst Posted
Study publicly available on registry
March 7, 2025
CompletedStudy Start
First participant enrolled
March 15, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
October 10, 2025
CompletedStudy Completion
Last participant's last visit for all outcomes
December 25, 2025
CompletedMarch 10, 2025
March 1, 2025
7 months
March 3, 2025
March 6, 2025
Conditions
Outcome Measures
Primary Outcomes (1)
Change in the concentration of antimicrobial peptides (LL-37 and calprotectin) in feces before and after intervention
Detected by Enzyme-Linked Immunosorbent Assay (ELISA).
Week 0 and Week 8
Study Arms (2)
Probiotic Group
EXPERIMENTALIntervention with Bifidobacterium longum subsp. infantis BI45 (30 billion CFU/ day, 3g) was administered daily for 8 weeks. Store in a cool, dry place.
Placebo Group
PLACEBO COMPARATOREvery day to give 3 g maltodextrin intervention for 8 weeks. Store in a cool and dry place.
Interventions
Dietary supplement: Probiotics. The trial period of this study lasts for 2 months (8 weeks), during which each participant will have 3 visits (at month 0, month 1, and month 2).
Dietary supplement: Placebo. The trial period of this study lasts for 2 months (8 weeks), during which each participant will have 3 visits (at month 0, month 1, and month 2).
Eligibility Criteria
You may qualify if:
- Willing to undergo 3 follow-up visits during the intervention period Be willing to provide blood, urine and stool samples 2 times during the intervention period
- Willing to self-administer probiotic or placebo once a day during the intervention period
- Good eyesight, can read and write, can wear glasses
- Have good hearing and be able to hear and understand all instructions during the intervention
You may not qualify if:
- Digestive diseases, mainly gastrointestinal diseases (celiac disease, ulcerative colitis, Crohn's disease)
- Have a serious neurological condition (epilepsy, stroke, severe head trauma, meningitis in the last 10 years, brain surgery, brain tumor, prolonged coma - not including general anaesthesia)
- Have received/are receiving treatment for the following mental disorders: alcohol/drug/substance abuse dependence, schizophrenia, psychosis, bipolar disorder
- Take medication for depression or low mood Internal organ failure (heart, liver or kidney failure, etc.)
- Have received radiation or chemotherapy in the past
- Have undergone a general anesthesia procedure/procedure within the past three years, or plan to undergo a general anesthesia procedure/procedure within the next 3 months during this trial period
- Have had hepatitis (hepatitis B, hepatitis C), HIV or syphilis in the past
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Henan University of Technology
Zhengzhou, Henan, 462000, China
MeSH Terms
Interventions
Intervention Hierarchy (Ancestors)
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- SINGLE
- Who Masked
- PARTICIPANT
- Purpose
- PREVENTION
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
March 3, 2025
First Posted
March 7, 2025
Study Start
March 15, 2025
Primary Completion
October 10, 2025
Study Completion
December 25, 2025
Last Updated
March 10, 2025
Record last verified: 2025-03