The Effect of Probiotics (L. Helveticus, B. Longum, and B. Bifidum) on Immune Function and Digestive Health

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

583 participants

Study Classification

INTERVENTIONAL

Study Start Date

2012-09-30

Study Completion Date

2013-01-31

Brief Summary

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The purpose of this study is to determine if daily consumption of a probiotic in the period before, during and after academic exams will help maintain digestive and immune health and quality of life of undergraduate students.

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Detailed Description

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A randomized, double-blinded, placebo-controlled trial will be used. Healthy full-time undergraduate students will be recruited from the University of Florida via flyers, emails, announcements, etc. Informed consent will be obtained and the inclusion/exclusion criteria will be reviewed to determine whether a participant qualifies for the study. All participants will be consented for the main six-week intervention and a subgroup (n=50/group) of these students will be consented to provide two stool samples.

Participants will provide saliva and stool samples (for the sub-group)during the pre-baseline week and during the week of final exams at approximately week 4. At the randomization visit, height, weight and age will be obtained. Participants will be stratified based on body mass index and randomized via sealed envelopes to one of four groups: Lactobacillus helveticus, Bifidobacterium longum ssp. Infantis, Bifidobacterium bifidum or the placebo (n=145/group). Participants will take the study provided capsule of probiotic or placebo daily for 6 weeks. Participants will receive daily questionnaires via email throughout the prebaseline week and the 6-week intervention. Daily questionnaires will ask about intake of the supplement, cold symptoms, and general health (i.e., new medications, doctor visits). Throughout the study, participants will also be asked to complete weekly questionnaires (inquiring about gastrointestinal symptoms and physical activity) and Quality of Life Questionnaires (administered during pre-baseline, final exam week and week 6 of the study).

Conditions

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Healthy

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

BASIC_SCIENCE

Blinding Strategy

DOUBLE

Participants Investigators

Study Groups

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