Dietary Supplement With and Without a Probiotic

NCT ID: NCT04433208

Last Updated: 2025-03-18

Study Results

Results available

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

62 participants

Study Classification

INTERVENTIONAL

Study Start Date

2020-03-13

Study Completion Date

2020-12-02

Brief Summary

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Complex oligosaccharides can alter the gut microbiome by aiding in the growth of certain organisms, and possibly, inhibiting others. The synergy with a probiotic may enhance gastrointestinal colonization.

Detailed Description

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The study will evaluate the synergy of the use of a complex oligosaccharide with and without a probiotic on the human microbiome in healthy volunteers. The combination should support general gastrointestinal health.

The study a multi-dose randomized cohort trial using 10 subjects per cohort for a total of 60 healthy adult volunteers ages 18-44.

Conditions

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Healthy Adult Subjects

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

BASIC_SCIENCE

Blinding Strategy

NONE

Study Groups

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Cohort 1 (Probiotic)

Day 1-7: Subjects receive standard probiotic dose (mixed in aqueous diluent) orally once daily

Group Type EXPERIMENTAL

Probiotic

Intervention Type DIETARY_SUPPLEMENT

Probiotic

Cohort 2 (Complex oligosaccharide)

Day 1-14: Subjects receive 18 g dose of complex oligosaccharide orally twice daily

Group Type EXPERIMENTAL

Complex oligosaccharide

Intervention Type DIETARY_SUPPLEMENT

Complex oligosaccharide concentrate

Cohort 3 (4.5 g Dose of Complex oligosaccharide + Probiotic)

Day 1-7: Subjects receive standard probiotic dose (mixed in aqueous diluent) orally once daily in combination with 4.5 g dose of complex oligosaccharide orally twice daily Day 8-14: Subjects receive only 4.5 g dose of complex oligosaccharide orally twice daily

Group Type EXPERIMENTAL

Complex oligosaccharide

Intervention Type DIETARY_SUPPLEMENT

Complex oligosaccharide concentrate

Probiotic

Intervention Type DIETARY_SUPPLEMENT

Probiotic

Cohort 4 (9 g dose of Complex oligosaccharide + Probiotic)

Day 1-7: Subjects receive standard probiotic dose (mixed in aqueous diluent) orally once daily in combination with 9 g dose of complex oligosaccharide orally twice daily Day 8-14: Subjects receive only 9 g dose of complex oligosaccharide orally twice daily

Group Type EXPERIMENTAL

Complex oligosaccharide

Intervention Type DIETARY_SUPPLEMENT

Complex oligosaccharide concentrate

Probiotic

Intervention Type DIETARY_SUPPLEMENT

Probiotic

Cohort 5 (18 g dose of Complex oligosaccharide + PPI + Probiotic +/- H2 Blocker)

First Course Day 1-7: Subjects receive standard probiotic dose (mixed in aqueous diluent) and PPI orally once daily in combination with 18 g dose of complex oligosaccharide orally twice daily Day 8-14: Subjects receive only 18 g dose of complex oligosaccharide orally twice daily

Second Course Day 29-35: Subjects receive standard probiotic dose (mixed in aqueous diluent) and may receive H2 blocker\* orally once daily in combination with 18 g dose of complex oligosaccharide orally twice daily Day 36-42: Subjects receive only 18 g dose of complex oligosaccharide orally twice daily

\*4 subjects received H2 blocker, 4 subjects did not receive H2 blocker during second course

Group Type EXPERIMENTAL

Complex oligosaccharide

Intervention Type DIETARY_SUPPLEMENT

Complex oligosaccharide concentrate

Probiotic

Intervention Type DIETARY_SUPPLEMENT

Probiotic

PPI

Intervention Type OTHER

Over-the-counter proton pump inhibitor (PPI)

H2 Blocker

Intervention Type OTHER

Over-the-counter H2 blocker

Cohort 6 (18 g dose of Complex oligosaccharide + Probiotic)

Day 1-7: Subjects receive standard probiotic dose (mixed in aqueous diluent) orally once daily in combination with 18 g dose of complex oligosaccharide orally twice daily Day 8-14: Subjects receive only 18 g dose of complex oligosaccharide orally twice daily

Group Type EXPERIMENTAL

Complex oligosaccharide

Intervention Type DIETARY_SUPPLEMENT

Complex oligosaccharide concentrate

Probiotic

Intervention Type DIETARY_SUPPLEMENT

Probiotic

Interventions

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Complex oligosaccharide

Complex oligosaccharide concentrate

Intervention Type DIETARY_SUPPLEMENT

Probiotic

Probiotic

Intervention Type DIETARY_SUPPLEMENT

PPI

Over-the-counter proton pump inhibitor (PPI)

Intervention Type OTHER

H2 Blocker

Over-the-counter H2 blocker

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Healthy adults between the ages of 18-44 years
* Willingness to complete all study procedures and clinic visits, and provide required samples
* Provides informed consent

Exclusion Criteria

* Women who are pregnant or breastfeeding, or intend to become pregnant during the course of this study
* Subjects with history of lactose intolerance
* Subjects who are on a PPI regimen
* Subjects who have taken a probiotic during the previous 30 days, or intends to take a probiotic during the study.
* Subjects who have taken antibiotics within 120 days
* Alcohol or drug abuse during the last 12 months, including passing a screen for drugs of abuse at screening
* Unstable medical condition, in the opinion of the investigator
* Clinically significant abnormal laboratory test results at screening
* Participation in a clinical research trial within 30 days prior to screening
* Unable to give informed consent
* Any condition which may preclude subject's ability to comply with and complete the study or may pose a risk to the health of the subject
Minimum Eligible Age

18 Years

Maximum Eligible Age

44 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Prolacta Bioscience

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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WCCT Global

Cypress, California, United States

Site Status

Countries

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United States

Provided Documents

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Document Type: Study Protocol and Statistical Analysis Plan

View Document

Other Identifiers

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20-CT-001

Identifier Type: -

Identifier Source: org_study_id

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