Effect of Probiotic on Rhinovirus Induced Colds (MK EPRIC)

March 16, 2020 updated by: Ronald Turner, MD, University of Virginia
This is a randomized, double-blind placebo controlled trial to evaluate the effect of a probiotic (Bl-04) on the occurrence of rhinovirus-associated common cold illness in the experimental rhinovirus challenge model. A previous study documented that Bl-04 has significant effects on the innate immune response in the nose and this study will be powered to assess whether these effects translate into a demonstrable clinical benefit. Volunteers will be given Bl-04 or placebo for 28 days then challenged with rhinovirus. The primary analysis will be on the proportion of volunteers who develop a rhinovirus associated illness in the two treatment groups.

Study Overview

Study Type

Interventional

Enrollment (Actual)

380

Phase

  • Not Applicable

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

16 years to 58 years (Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

INCLUSION CRITERIA AT ENROLLMENT:

  • Subject must be 18-60 years of age.
  • Subject must read and sign a copy of the approved Consent Form
  • Subject must have a serum neutralizing antibody titer of less than or equal to 1:4 to rhinovirus type 39

INCLUSION CRITERIA AT DAY -28

• Female subjects must be using an effective birth control method.

INCLUSION CRITERIA AT CHALLENGE:

  • Female subjects must be using an effective birth control method.

Exclusion Criteria:

  • Antibiotic use within 3 months prior to day -28

    • Female subjects with a positive urine pregnancy screen
    • History of use of probiotics in the preceding two weeks
    • Current cancer diagnosis or immunosuppressive therapy in the last 6 months
    • Any clinically significant abnormalities of the upper respiratory tract
    • Any clinically significant acute or chronic respiratory illness
    • Any clinically significant bleeding tendency by history
    • Hypertension that requires treatment with antihypertensive medications
    • History of angina or other clinically significant cardiac disease
    • Any medical condition that in the opinion of the Principal Investigator is cause for exclusion from the study
    • History of regular use (more than 3 days in 7) of tobacco products within the preceding two weeks
    • History of drug or alcohol abuse in the 6 months preceding the study

EXCLUSION CRITERIA AT CHALLENGE:

  • Any upper respiratory infection or allergic rhinitis in the two weeks prior to the challenge
  • Female subjects with positive pregnancy screen prior to challenge
  • Any medical condition that in the opinion of the Principal Investigator is cause for exclusion from the study
  • Use of any anti-inflammatory (steroids or NSAIDs) or cough/cold or allergy preparation in the two weeks prior to the challenge

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Prevention
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Triple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: Bifidobacterium lactis Bl-04
2*109 cfus of probiotic Bifidobacterium lactis Bl-04 (DuPont Nutrition and Health) mixed with 1g of sucrose as a carrier
Placebo Comparator: Placebo
sucrose

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Number of Participants With Rhinovirus-associated Illness Episodes
Time Frame: 5 days
Rhinovirus-associated illness episodes: Volunteers who have both a rhinovirus infection and a symptomatic illness will be defined as having a rhinovirus-associated common cold illness.
5 days

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

February 1, 2016

Primary Completion (Actual)

April 1, 2018

Study Completion (Actual)

April 1, 2018

Study Registration Dates

First Submitted

February 8, 2016

First Submitted That Met QC Criteria

February 8, 2016

First Posted (Estimate)

February 10, 2016

Study Record Updates

Last Update Posted (Actual)

March 25, 2020

Last Update Submitted That Met QC Criteria

March 16, 2020

Last Verified

March 1, 2020

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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