Probiotics and Influenza Vaccination Response

NCT ID: NCT05690373

Last Updated: 2023-08-24

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

100 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-03-20

Study Completion Date

2023-06-30

Brief Summary

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Assess efficacy of oral ingestion of a probiotic product on immune function in a population of healthy adult men and women in a clinical vaccination study.

Detailed Description

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Conditions

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Vaccine Response

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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Probiotic

2B Colony Forming Unit/ day

Group Type EXPERIMENTAL

Probiotic effect on influenza vaccine response

Intervention Type DIETARY_SUPPLEMENT

Seroconversion rate: the percentage of subjects achieving at least a 4-fold increase or an increase from \>10 to 40 in Ab titre for seronegative subjects.

Placebo

Equivalent placebo

Group Type PLACEBO_COMPARATOR

Probiotic effect on influenza vaccine response

Intervention Type DIETARY_SUPPLEMENT

Seroconversion rate: the percentage of subjects achieving at least a 4-fold increase or an increase from \>10 to 40 in Ab titre for seronegative subjects.

Interventions

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Probiotic effect on influenza vaccine response

Seroconversion rate: the percentage of subjects achieving at least a 4-fold increase or an increase from \>10 to 40 in Ab titre for seronegative subjects.

Intervention Type DIETARY_SUPPLEMENT

Eligibility Criteria

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Inclusion Criteria

* Men and women
* Age 16 - 65 y and healthy
* Self-reported regular Dutch eating habits as assessed by questionnaire (3 main meals per day)
* No influenza vaccination in 2022
* Non-smokers
* BMI 18.5-28
* Adherence to habitual diet
* no changes during study period
* Signed informed consent

Exclusion Criteria

* Recent vaccination
* Acute or chronic illness (e.g., diabetes mellitus)
* Gastrointestinal disorders (e.g., inflammatory bowel disease)
* Acute gastroenteritis in the past 2 months
* Immunodeficiency disorder
* Use of immunosuppressive drugs (e.g. cyclosporine, azathioprine, systemic corticosteroids, antibodies)
* Unexplained weight loss or weight gain of \> 3 kg in the 3 months prior to pre-study screening
* Alcohol or drug abuse
* Mental status that is incompatible with the proper conduct of the study
* History of cancer
* Use of immune boosting supplements within 4 weeks before screening To be extended \& specified in protocol phase
Minimum Eligible Age

16 Years

Maximum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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NIZO Food Research

OTHER

Sponsor Role collaborator

The Archer-Daniels-Midland Company

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Alwine Kardinaal, PhD

Role: STUDY_CHAIR

NIZO food research B.V

Locations

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Alwine Kardinaal, PhD NIZO food research B.V

Ede, , Netherlands

Site Status

Countries

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Netherlands

Other Identifiers

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200918

Identifier Type: OTHER

Identifier Source: secondary_id

CTB2022TN106

Identifier Type: -

Identifier Source: org_study_id

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