The Influence of Probiotics in a Drinkable Yogurt on Skin Health

NCT ID: NCT00864188

Last Updated: 2013-05-16

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

Total Enrollment

207 participants

Study Classification

INTERVENTIONAL

Study Start Date

2009-02-28

Study Completion Date

2010-04-30

Brief Summary

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The aim of this study is to test if probiotics administered to healthy female subjects in a dairy format have any skin health benefits.

Detailed Description

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This is a placebo-controlled, double blind, randomized, single center, human clinical trial aimed at assessing the influence of probiotics on skin health in healthy female subjects, when administered in a food matrix over a period of 5 months.

It will consist of five groups(40 subjects/group). The first group (1) of subjects will receive acidified milk that does not contain bacterial strains. The second group (2) will receive acidified milk that contains one specific probiotic strain. The third group (3) will receive fermented milk that contains a standard mix of yogurt bacterial strains. The fourth group (4) will receive fermented milk, containing the same standard mix of yogurt bacterial strains as in group 3 plus the same specific probiotic strain as in group 2. Finally, the fifth group (5) will receive fermented milk, containing the same standard mix of yogurt bacterial strains as in group 3 and 4 plus the same specific probiotic strain as in group 2 and 4 plus a mix of antioxidants.

This study will address whether:

A.The bioefficacy of a specific probiotic strain is influenced by a milk matrix.

B.Whether other bacterial strains impact the bioefficacy of this specific probiotic strain, and validate whether or not the bioefficacy is related entirely to the activity of this specific probiotic strain.

C.Whether nutritional supplements impact the bioefficacy of a specific probiotic strain.

Conditions

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Skin Health

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

SUPPORTIVE_CARE

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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3

Fermented milk containing two standard bacterial strains for acidification - Streptococcus thermophilus and Lactobacillus delbrueckii subsp.bulgaricus.

Group Type PLACEBO_COMPARATOR

Two standard yogurt fermenting bacterial strains - Streptococcus thermophilus and Lactobacillus delbrueckii subsp. bulgaricus

Intervention Type DIETARY_SUPPLEMENT

Fermented milk containing two standard yogurt bacterial strains.

4

Fermented milk containing two standard bacterial strains for acidification - Streptococcus thermophilus and Lactobacillus delbrueckii and one probiotic strain called Lactobacillus paracasei NCC2461.

Group Type EXPERIMENTAL

One probiotic strain - Lactobacillus paracasei NCC2461

Intervention Type DIETARY_SUPPLEMENT

Glucono-Delta-Lactone acidified or fermented milk containing one probiotic strain.

Two standard yogurt fermenting bacterial strains - Streptococcus thermophilus and Lactobacillus delbrueckii subsp. bulgaricus

Intervention Type DIETARY_SUPPLEMENT

Fermented milk containing two standard yogurt bacterial strains.

5

Fermented milk containing two standard bacterial strains for acidification - Streptococcus thermophilus and Lactobacillus delbrueckii, one probiotic strain called Lactobacillus paracasei NCC2461 and Vitamin B2,B3, C and E, Beta Carotene and an Oil.

Group Type EXPERIMENTAL

One probiotic strain - Lactobacillus paracasei NCC2461

Intervention Type DIETARY_SUPPLEMENT

Glucono-Delta-Lactone acidified or fermented milk containing one probiotic strain.

Two standard yogurt fermenting bacterial strains - Streptococcus thermophilus and Lactobacillus delbrueckii subsp. bulgaricus

Intervention Type DIETARY_SUPPLEMENT

Fermented milk containing two standard yogurt bacterial strains.

Vit B2, B3, C and E, Beta Carotene and Oil

Intervention Type DIETARY_SUPPLEMENT

Fermented milk containing nutritional supplements

1

Glucono-Delta-Lactone acidified milk containing no bacterial strains

Group Type PLACEBO_COMPARATOR

no bacterial strains

Intervention Type DIETARY_SUPPLEMENT

Glucono-Delta-Lactone acidified milk containing no bacterial strains

2

Glucono-Delta-Lactone acidified milk containing one probiotic strain called Lactobacillus paracasei NCC2461.

Group Type EXPERIMENTAL

One probiotic strain - Lactobacillus paracasei NCC2461

Intervention Type DIETARY_SUPPLEMENT

Glucono-Delta-Lactone acidified or fermented milk containing one probiotic strain.

Interventions

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no bacterial strains

Glucono-Delta-Lactone acidified milk containing no bacterial strains

Intervention Type DIETARY_SUPPLEMENT

One probiotic strain - Lactobacillus paracasei NCC2461

Glucono-Delta-Lactone acidified or fermented milk containing one probiotic strain.

Intervention Type DIETARY_SUPPLEMENT

Two standard yogurt fermenting bacterial strains - Streptococcus thermophilus and Lactobacillus delbrueckii subsp. bulgaricus

Fermented milk containing two standard yogurt bacterial strains.

Intervention Type DIETARY_SUPPLEMENT

Vit B2, B3, C and E, Beta Carotene and Oil

Fermented milk containing nutritional supplements

Intervention Type DIETARY_SUPPLEMENT

Eligibility Criteria

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Inclusion Criteria

* Healthy women as assessed by medical history and standard medical examination
* Caucasian
* Age: 25-55 y (inclusive)
* Normal BMI ≤ 30
* Skin type 1-111
* Regular Hormonal Cycle
* Having given his/her written informed consent
* Willing to avoid the consumption of fermented dairy products
* Minimum consumption of dark chocolate during the period of the study

Exclusion Criteria

* Smoker
* Pregnant or lactating women
* Post menopausal women
* Heavy alcohol intake (usually consuming more than 3 standard drinks/day)
* Intake of chronic medications except oral contraceptive
* Vitamin and/or mineral and/or antioxidant supplementation over the 3 months preceding the initiation of the study and throughout the study.
* Having skin cancer or genetic disposition to skin cancer
* Regular exposure to artificial UVR
* Daily exposure to sun more than one week over the 2 months preceding the initiation of the study
* Planned vacation to sun during the period of the study.
* Excessive tea drinkers (more than 2 cups a day of green or black tea).
* Excessive consumer of fermented dairy products (more than 150g per day).
* Excessive consumer of dark chocolate (\> 25g per day).
* Regular high exercise such as a marathon
* Subject who regularly takes saunas (dry or wet) or swims daily.
* Subject who cannot be expected to comply with treatment
* Currently participating or having participated in another interventional clinical trial during the last 3 months prior to the beginning of this study.
Minimum Eligible Age

25 Years

Maximum Eligible Age

55 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

Yes

Sponsors

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Société des Produits Nestlé (SPN)

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Institut für umweltmedizinische Forschung (IUF) an der Heinrich-Heine-Universität Düsseldorf gGmbH

Düsseldorf, , Germany

Site Status

Countries

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Germany

Other Identifiers

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08.29.NRC

Identifier Type: -

Identifier Source: org_study_id

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