Safety and Efficacy of a Probiotic Supplement

NCT ID: NCT05425329

Last Updated: 2022-06-21

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

17 participants

Study Classification

INTERVENTIONAL

Study Start Date

2020-08-01

Study Completion Date

2021-12-31

Brief Summary

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Exercise-induced gastrointestinal dysfunction is common amongst endurance athletes and is characterized by gastrointestinal permeability, also known as "leaky gut." Probiotics have been shown to improve gut permeability through the secretion of mucin, immunoglobulin A and improvement in stability of tight junctions between epithelial cells. This study will determine the efficacy of a probiotic containing the bacterial strains P. acidilatici, CECT 7483, L. plantarum CECT 7484, L. plantarum CECT7485) in altering markers of gut inflammation and dysfunction, and symptoms of gastrointestinal distress.

Detailed Description

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This study is a randomized, placebo-controlled, double-blinded crossover study where trained runners that experience moderate gastrointestinal discomfort with exhaustive runs will be subjected to the probiotic intervention/placebo supplementation for one month with a one month washout period. The intervention consists of the probiotic strains Lactobacillus plantarum (CECT7484 and CECT7485) and Pediococcus acidilactici (CECT7483) at a ratio of 1:1:1 at a dose of 3b cfu/day. Probiotic/Placebo capsules will be taken once daily. Biological samples and symptom data collection will be collected at baseline and after one month of probiotic/placebo supplementation. Data are also collected after an in-house treadmill run after one month of supplementation.

Conditions

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Gastrointestinal Discomfort

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

Primary Study Purpose

PREVENTION

Blinding Strategy

DOUBLE

Participants Investigators

Study Groups

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Probiotic treatment

P. acidilatici, CECT 7483, L. plantarum CECT 7484, L. plantarum CECT7485 in a ration of 1:1:1 at a dose of 3b cfu/day.

Group Type EXPERIMENTAL

I3.1

Intervention Type DIETARY_SUPPLEMENT

Capsule containing bacterial strains Lactobacillus plantarum (CECT7484 and CECT7485) and Pediococcus acidilactici (CECT7483) at a ratio of 1:1:1.

Placebo treatment

Capsules indistinguishable from intervention containing maltodextrin.

Group Type PLACEBO_COMPARATOR

Placebo treatment

Intervention Type DIETARY_SUPPLEMENT

Capsule containing maltodextrin.

Interventions

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I3.1

Capsule containing bacterial strains Lactobacillus plantarum (CECT7484 and CECT7485) and Pediococcus acidilactici (CECT7483) at a ratio of 1:1:1.

Intervention Type DIETARY_SUPPLEMENT

Placebo treatment

Capsule containing maltodextrin.

Intervention Type DIETARY_SUPPLEMENT

Eligibility Criteria

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Inclusion Criteria

* Males, females between 18-50 years of age
* Healthy and injury free as determined by screening questions and medical history
* Distance runners as determined by physical activity questionnaire; run = 15 miles/week, run = 3 time or more/week
* VO2max level of = 40ml/kg/min for males or = 35ml/kg/min for females
* Agree to maintain normal diet and exercise routine throughout study
* Agrees to collect stool samples as needed
* Agree to complete questionnaires, records

Exclusion Criteria

* Women who are pregnant or breastfeeding, or plan to become pregnant during course of the study will not be included as the effect of probiotic on pregnancy and lactation is not established.
* Subjects with a known allergy to the test material (active and placebo)
* Subjects taking NSAIDs, Metformin, probiotics, or supplements that might alter the gut microbiome;these will be assessed individually. (Multivitamin and protein supplementation are allowed)
* Subject that have abnormal test results during screening.
* Alcohol or drug abuse within past year (alcohol can impair gut barrier).
* History of GI surgery within past year as it would alter the gut microbiome (excluding appendectomy and herniorrhaphy).
* Severe heart, liver, kidney, neurological, oncological or psychiatric disease, or immunosuppressed subjects will be excluded.
* Coeliac disease, inflammatory bowel disease or acute pancreatitis (all 3 can impair gut barrier)
* Regular use of antacid medication (can significantly alter microbiota)
* Subject following a low FODMAP (fermentable oligo-, di-, mono-saccharides and polyols) diet will be excluded as this dietary pattern can alter the intestinal response to exercise in some people.
Minimum Eligible Age

20 Years

Maximum Eligible Age

50 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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University of Memphis

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Marie van der Merwe, PhD

Role: PRINCIPAL_INVESTIGATOR

University of Memphis

Locations

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University of Memphis

Memphis, Tennessee, United States

Site Status

Countries

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United States

Other Identifiers

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PRO-FY2020-304

Identifier Type: -

Identifier Source: org_study_id

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