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The aim of the present investigation is to evaluate the immunomodulation effect of ESIT12, a poplar-type propolis dry extract standardized in polyphenols, and its efficacy in subjects at risk of contracting upper respiratory tract infections (URTIs), during a 12-week supplementation period plus 4-week follow-up.
The number of onset of upper respiratory tract infections, the symptoms severity and lasting and interferences with well-being will be assessed with WURSS-24 questionnaire. The quality of life will be assessed with the SF-36 questionnaire and a testimonial. Blood immune markers will also be assessed. Finally, long lasting benefits will additionally be evaluated 4 weeks after end of the supplementation period. The design of the study is double-blind, randomized, parallel and placebo controlled.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Placebo | Placebo Comparator |
| |
| Verum | Experimental |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Placebo | Dietary Supplement | Arabic gum, sucrose and silicon dioxide mix |
| |
| Measure | Description | Time Frame |
|---|---|---|
| Supplementation Efficacy on URTI incidence | The incidence of URTI developped in Verum compare to Placebo measured with the WURSS-24 symptoms questionnaire | 12 weeks |
| Supplementation Efficacy on number of URTI incidence | The number of URTI incidence per person in Verum compare to Placebo measured with the WURSS-24 symptoms questionnaire | 12 weeks |
| Measure | Description | Time Frame |
|---|---|---|
| Supplementation Efficacy on URTI symptoms | The comparison of symptoms score (domain 2) between placebo and verum as measured with WURSS-24 questionnaire | 12 weeks |
| Supplementation Efficacy on impact of URTI on quality of life |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Pedro Alcaraz | UCAM (Universidad Catolica San Antonio de Murcia) | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| UCAM (Universidad Catolica San Antonio de Murcia) | Murcia | Spain |
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| ID | Term |
|---|---|
| D012141 | Respiratory Tract Infections |
| ID | Term |
|---|---|
| D007239 | Infections |
| D012140 | Respiratory Tract Diseases |
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| ID | Term |
|---|---|
| C068637 | calcium D-pantothenate, L-cysteine drug combination |
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| Verum |
| Dietary Supplement |
Propolis dry extract ESIT12 and carriers (arabic gum, sucrose and silicon dioxide mix) |
|
The comparison of cold-specific functional impairments (domain 3) between placebo and verum as measured with WURSS-24 questionnaire
| 12 weeks |
| Supplementation Efficacy on URTI severity | The comparison of global cold severity (domain 4) between placebo and verum as measured with WURSS-24 questionnaire | 12 weeks |
| Supplementation Efficacy on immunomodulation | Assessment of immunological vigor (SIV) as monitored by 4 PBMC panels Panel 1 : global activation Panel 2 : Tcells focus Panel 3 : B cells focus Panel : Neutrophils / monocytes focus | 12 weeks |