Immune Response to the Consumption of Lactobacillus GG and FOS in Patients With Recurrent Herpes Labialis
EVIM
A Randomized, Triple-blind Placebo-controlled Single Center Trial to Evaluate the Immune Response to the Consumption of a Minidrink Containing a Combination of Lactobacillus GG and Fructooligosaccharides in Patients With Recurrent Herpes Labialis
1 other identifier
interventional
78
0 countries
N/A
Brief Summary
Background: Herpes labialis is the result of the presence of Herplex Simplex Virus -1 (HSV-1) and is a common disease in the population. Because of its visibility it has a serious impact on social life and the feeling of well-being in people who suffer from this disease. Until now there is no effective treatment and no remedy for prevention of the virus outbreak. Prebiotics and probiotics have both been shown to have a favorable and supportive effect on the immune system in different health conditions such as influenza, atopic dermatitis and diarrhea. So far no study has addressed the effect of the consumption of pre- and/or probiotics in a population with recurrent herpes labialis. Aim of the study: The present study investigated the effect of pre- or probiotics or a combination of the two on the recurrence of herpes labialis lesions as well as on the immune system in general. Design: 78 Patients were eligible to participate in the study and after a run-in period of two weeks consuming a placebo minidrink were randomized to one of the four experimental groups, these were: placebo minidrink (n=), prebiotic (fructooligosaccharides) minidrink (n=), probiotic (Lactobacillus rhamnosus GG or LGG) minidrink (n=) or a minidrink containing a combination of a pre- and probiotic. These minidrinks were consumed for another 5 weeks. At day 33 of the study the lip most prone to the development of a lesion was stimulated with UVB in order to provoke a lesion. During the entire study period subjects were checked for any clinical signs of a lesion, completed a self-assessment regarding the lesion and a quality of life questionnaire at baseline (day 14) and the end of the study (day 49). In addition, a blood sample was collected at baseline and at the end of the study to be analyzed for general and HSV-specific antibodies, intracellular cytokine concentrations and parameters of the innate immune response such as natural killer cell activity and phagocytosis.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for not_applicable
Started Dec 2008
Shorter than P25 for not_applicable
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
December 15, 2008
CompletedPrimary Completion
Last participant's last visit for primary outcome
September 16, 2009
CompletedStudy Completion
Last participant's last visit for all outcomes
October 20, 2009
CompletedFirst Submitted
Initial submission to the registry
October 3, 2017
CompletedFirst Posted
Study publicly available on registry
October 12, 2017
CompletedOctober 12, 2017
October 1, 2017
9 months
October 3, 2017
October 6, 2017
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Incidence rate of ultraviolet exposure-lesion
Incidence rate of ultraviolet exposure-lesion at at Day 42.
Day 42
Secondary Outcomes (14)
Incidence rate of ultraviolet exposure-lesion
day 35
Incidence rate of ultraviolet exposure-lesion
day 49
Measurement of lesion size (mm2).
Day 35 day 42 Day 49
Time to healing (days).
Day 35 day 42 Day 49
Lesion development by classification of lesion stage.
Day 35 day 42 Day 49
- +9 more secondary outcomes
Study Arms (4)
placebo drink
PLACEBO COMPARATORThe placebo drink consists of fermented low-fat milk with no added Lactobacillus GG.(placebo)
LGG Drink (
ACTIVE COMPARATORThe probiotic drink consists of fermented low-fat milk with added Lactobacillus GG. (probiotics)
FOS Drink
ACTIVE COMPARATORThe prebiotics drink consists of fermented low-fat milk with fructooligosaccharides. (prebiotics)
LGG e FOS Drink
ACTIVE COMPARATORThe probiotics and prebiotics drink consists of acidified low-fat milk with added Lactobacillus GG and fructooligosaccharides (prebiotics and probiotics)
Interventions
Eligibility Criteria
You may qualify if:
- Healthy free-living men and women aged 18 to 65 years-old
- History of recurrent herpes labialis at most 3 episodes after exposure to sunlight in the previous 12 months
- Fitzpatrick skin type 1 to 4
- No presence of herpes labialis lesion at the time of recruitment
- Consent to the study and to comply with study product
- Agreement to adhere to the prescribed list of food and nutrients as provided at the start of the study
You may not qualify if:
- Presence of acute/terminal disease
- Intolerance for milk protein or lactose
- Daily consumption of probiotic products 1 month before start of the study
- Treatment with acyclovir or other medication believed to interfere with immune responses at the time of the study
- Participation in any herpes UVB reactivation study within the previous three months
- Episode of herpes labialis within 30 days before enrolment in the study
Contact the study team to confirm eligibility.
Sponsors & Collaborators
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- DOUBLE
- Who Masked
- PARTICIPANT, INVESTIGATOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
October 3, 2017
First Posted
October 12, 2017
Study Start
December 15, 2008
Primary Completion
September 16, 2009
Study Completion
October 20, 2009
Last Updated
October 12, 2017
Record last verified: 2017-10