Pilot Study on Effect Size of Non-digestible Polysaccharides (NPS) on Immunity

NCT ID: NCT01896154

Last Updated: 2016-11-17

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

PHASE1/PHASE2

Total Enrollment

239 participants

Study Classification

INTERVENTIONAL

Study Start Date

2012-08-31

Study Completion Date

2014-06-30

Brief Summary

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The aim of the study is to estimate the effect size of a 5-week consumption period of different dietary non-digestible polysaccharides (NPS) on antibody response to influenza vaccination and cellular immunity of healthy volunteers (aged ≥ 50) for clarifying whether these NPS may enable enhancement of immune defence and to estimate the sample size for a confirmative trial. Furthermore the effects on faecal microbiota and its metabolites will be investigated.

Detailed Description

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The study is conducted in the frame of the collaborative project 'FibeBiotics' (Nr. 289517) (Fibers as support of the Gut and Immune function of Elderly - From polysaccharide compound to health claim) within the Seventh Framework Programme (FP7) for Research and Technological Development of the European Union (EU).

Conditions

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Immunosenescence

Keywords

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dietary fibers, influenza vaccination, HI titres

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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NPS from yeast

Powder containing the active ingredients (500mg NPS from yeast) as well as filling substances (maltodextrins) and flavour adding up to 12.0 g altogether in sachets; consumed once daily after having been stirred in milk or filtered apple juice (ca. 200 ml/ 1 glass) for 5 weeks. 2 weeks before vaccination and 3 weeks after vaccination.

Group Type EXPERIMENTAL

NPS

Intervention Type DIETARY_SUPPLEMENT

Comparison of multiple dietary non-digestible polysaccharides

NPS from shiitake

Powder containing the active ingredient (500mg NPS from shitake) as well as filling substances (maltodextrins) and flavour adding up to 12.0 g altogether in sachets; consumed once daily after having been stirred in milk or filtered apple juice (ca. 200 ml/ 1 glass) for 5 weeks: 2 weeks before vaccination and 3 weeks after vaccination.

Group Type EXPERIMENTAL

NPS

Intervention Type DIETARY_SUPPLEMENT

Comparison of multiple dietary non-digestible polysaccharides

NPS from oat

Powder containing the active ingredient (10g NPS from oat) as well as filling substances (maltodextrins) and flavour adding up to 12.0 g altogether in sachets; consumed once daily after having been stirred in milk or filtered apple juice (ca. 200 ml/ 1 glass) for 5 weeks: 2 weeks before vaccination and 3 weeks after vaccination.

Group Type EXPERIMENTAL

NPS

Intervention Type DIETARY_SUPPLEMENT

Comparison of multiple dietary non-digestible polysaccharides

NPS from wheat

Powder containing the active ingredient (10g NPS from wheat) as well as filling substances (maltodextrins) and flavour adding up to 12.0 g altogether in sachets; consumed once daily after having been stirred in milk or filtered apple juice (ca. 200 ml/ 1 glass) for 5 weeks: 2 weeks before vaccination and 3 weeks after vaccination.

Group Type EXPERIMENTAL

NPS

Intervention Type DIETARY_SUPPLEMENT

Comparison of multiple dietary non-digestible polysaccharides

NPS from Lactobacillus mucosae

Powder containing the active ingredient (2,3g NPS from L. mucosae) as well as filling substances (maltodextrins) and flavour adding up to 12.0 g altogether in sachets; consumed once daily after having been stirred in milk or filtered apple juice (ca. 200 ml/ 1 glass) for 5 weeks: 2 weeks before vaccination and 3 weeks after vaccination.

Group Type EXPERIMENTAL

NPS

Intervention Type DIETARY_SUPPLEMENT

Comparison of multiple dietary non-digestible polysaccharides

Maltodextrin

12.0 g Maltodextrin and flavour with identical/similar appearance and taste (when mixed in drink), consumed once daily as described for the active products (NPS.

Group Type PLACEBO_COMPARATOR

NPS

Intervention Type DIETARY_SUPPLEMENT

Comparison of multiple dietary non-digestible polysaccharides

Interventions

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NPS

Comparison of multiple dietary non-digestible polysaccharides

Intervention Type DIETARY_SUPPLEMENT

Eligibility Criteria

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Inclusion Criteria

* Free-living postmenopausal woman and men aged ≥ 50 years willing to have influenza vaccination season 2012/2013
* willingness to abstain as far as possible from food and supplements containing probiotics, prebiotic supplements, other fermented products, supplements containing vitamins and minerals as well as willing to sustain on a low dietary fibre diet for 7 weeks.
* written informed consent

Exclusion Criteria

* Subjects enrolled in another clinical study in the last 4 weeks
* Subjects already vaccinated against influenza during 2012-2013 with either the influenza vaccine used in the present study or another influenza vaccine
* vaccination against influenza within the previous 10 months
* suffering from influenza or influenza-like illness within the previous 10 months
* other vaccinations during and within 2 months before the study
* symptoms of common infectious diseases (CID) of the airways or other organ systems e.g. gastrointestinal tract in the last 4 weeks before inclusion
* known congenital, acquired or iatrogenic immunodeficiency (e.g. HIV, chemotherapy, immunosuppression)
* active autoimmune diseases
* allergy or hypersensitivity to any component of the vaccine (e. g. chicken egg protein, certain antibiotics)(s. a. 9.2)
* allergy or hypersensitivity to any component of the test product (e. g. yeast, gluten, shiitake mushrooms)
* allergy to latex
* known coeliac disease (gluten enteropathy)
* bowel movement less than 3 times per week
* subjects, who meet 2 or more Rome III criteria for constipation or who take laxatives on a regular basis
* severe chronic disease (cancer, IBD, malabsorption, malnutrition, chronic inflammatory diseases, renal, hepatic or cardiac diseases, COPD, respiratory insufficiency)
* chronic abdominal pain
* malformation of fingers
* systemic treatment or topical treatment likely to interfere with evaluation of the study parameters: antibiotics, intestinal or respiratory antiseptics, anti-rheumatics, antiphlogistics (except aspirin or equivalent products preventing from aggregation of platelets or blood clotting) and steroids prescribed in chronic inflammatory diseases
* other treatments likely to interfere with study outcome (e.g. laxatives, body weight management and/or medication)
* treatments with calcium antagonists and nitrates and alpha blockers
* diabetes mellitus on drug therapy
* severe neurological, cognitive or psychiatric diseases
* surgery or intervention requiring general anaesthesia within 2 months before the study
* vegetarian, vegan
* eating disorders (e.g. anorexia, bulimia)
* alcohol and drug abuse
* pregnancy or lactation
* legal incapacity
* blood parameters: Hb \< 12 g/dL Liver transaminases (ALT, AST) \> 2-fold increased Serum creatinine \> 1,2 mg/dL
Minimum Eligible Age

50 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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European Commission

OTHER

Sponsor Role collaborator

Food & Biobased Research - Wageningen UR

UNKNOWN

Sponsor Role collaborator

Teagasc

INDUSTRY

Sponsor Role collaborator

Nofima

OTHER

Sponsor Role collaborator

BioActor B.V.

INDUSTRY

Sponsor Role collaborator

Swedish Oat Fiber AB

UNKNOWN

Sponsor Role collaborator

Immitec

UNKNOWN

Sponsor Role collaborator

Institut Pasteur

INDUSTRY

Sponsor Role collaborator

University of Bologna

OTHER

Sponsor Role collaborator

Clinical Research Center Kiel GmbH

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Christiane Laue, MD

Role: PRINCIPAL_INVESTIGATOR

Clinical Research Center Kiel GmbH

Other Identifiers

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Fib-P-2012

Identifier Type: -

Identifier Source: org_study_id