Ability of a Euglena Beta Glucan Supplementation to Augment Immune Function
- Conditions
- Symptoms FluSymptoms Cold
- Interventions
- Dietary Supplement: PlaceboDietary Supplement: Whole Cell Euglena containing Beta Glucan
- Registration Number
- NCT03518281
- Lead Sponsor
- Kemin Foods LC
- Brief Summary
Upper respiratory tract infections cause cold and flu-like symptoms and are the most common form of acute illness. Certain populations are at increased risk of upper respiratory tract infections including athletes who train at a high level of intensity for prolonged periods of time. Consequently, some athletes experience higher rates of cold and flu-like symptoms than the general population.
Euglena gracilis is a micro-algae which can synthesize many nutrients necessary for human health, including insoluble beta glucan. Thus, intake of whole cell Euglena may be beneficial to athletes by providing essential vitamins to optimize immune function.
- Detailed Description
At screening, an informed consent form will be given to the potential volunteer. They will be required to read the information and be given the opportunity to seek more information if needed, or provided with the option of taking the consent form home to review prior to making their decision. If agreeable, the volunteer will sign the consent form and receive a duplicate of the signed copy. Once consent has been obtained, the screening visit will proceed.
Screening assessments include:
1. Review of medical history, concomitant therapies and current health status (weight, height, BMI, vital signs, safety blood work)
2. Assesses inclusion and exclusion criteria
3. Urine pregnancy test for female potential participants that are not post-menopausal
Eligible participants will return to the clinic for baseline assessments. Baseline (day 0) assessments include:
1. Review of concomitant therapies and current health status
2. Review pre-supplement emergent AEs
3. Reassess inclusion and exclusion criteria
4. Randomization of eligible participants
5. Dispense daily upper respiratory tract symptom questionnaire
6. Collect saliva sample for measurement of secretory IgA
7. Collect blood sample for the analysis of cell activity
8. Administer mood and stress questionnaire in-clinic
9. Dispense daily gastrointestinal and bowel questionnaire
10. Dispense investigational product and instruct participants on use
11. Dispense daily study diary
At the end-of-study visit (Day 90) participants will return to the clinic for Visit 3 assessments with unused investigational product, completed study diaries, daily symptom questionnaires, daily gastrointestinal and bowel diaries.
Visit 3 assessments include:
1. Collection of all study diaries
2. Return of unused investigational product and calculate compliance
3. Review of concomitant therapies and adverse events
4. Check of health status (vitals, BMI, safety bloodwork)
5. Administer mood and stress questionnaire in-clinic.
6. Collect saliva sample for an end-of-study measurement of secretory IgA
7. Complete Product Tolerability and Perception Questionnaire
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- All
- Target Recruitment
- 60
- Body Mass Index (BMI) > 18 kg/m2 to <35 kg/m2.
- Willing to comply with a wash-out period for nutritional supplements known to affect immune function and to not consume these supplements for the entire study period
- Females of childbearing potential must agree to use a medically approved method of birth control
- Agree to maintaining a consistent diet and lifestyle routine throughout the study
- An endurance training athlete
- Healthy as determined by laboratory results and medical history
- Women who are pregnant, breastfeeding, or planning to become pregnant during the course of the trial
- Verbal confirmation of previous major gastrointestinal surgery
- Consuming doses of beta-glucan-containing nutritional supplements
- Chronic consumption of anti-inflammatory medications
- Taking antibiotics within 4 weeks of screening and during the study period
- Verbal confirmation of a diagnosed chronic inflammatory condition or autoimmune disorder
- Verbal confirmation of Type I or Type II diabetes or clinically important renal, hepatic, cardiac, pulmonary, pancreatic, neurologic, or biliary disorder, or a recent history (prior 2 years) of cancer other than non-melanoma skin cancer
- Currently taking antipsychotic medications
- Chronic recurring respiratory signs and symptoms due to allergies (including seasonal allergies) or chronic bronchitis, asthma, or wheezing
- Use of immunomodulators (including corticosteroids) such as immunosuppressant or immunostimulant medications within 4 weeks of baseline and during the study period
- Chronic use of Antacids and Proton Pump Inhibitors (PPI)
- Individuals who have received or are planning to receive the flu vaccination for the current flu season
- Active infection or signs/symptoms of an acute infection
- Heavy use of tobacco
- Alcohol or drug abuse within the last 2 years
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- PARALLEL
- Arm && Interventions
Group Intervention Description Placebo Placebo - Treatment Whole Cell Euglena containing Beta Glucan Whole Cell Euglena delivering βeta Glucan
- Primary Outcome Measures
Name Time Method Incidence of upper respiratory tract infections ANOVA of 90 day supplementation incidence of very mild/mild/ moderate/ severe upper respiratory tract infection symptoms
- Secondary Outcome Measures
Name Time Method Symptom Duration 30 and 90 days Duration of very mild/mild/moderate/sever upper respiratory tract infection symptoms
Stress 90 days Effect of treatment on Stress via Perceived Stress Scale Total Score
Secretory IgA 90 days Effect of treatment on secretory IgA levels
Natural Killer (NK) Cell Population 90 days Effect of treatment on NK cell population changes
Gastrointestinal status 30 and 90 days Effect of treatment on gastrointestinal status via questionnaire
Trial Locations
- Locations (1)
KGK Science Inc.
🇨🇦London, Ontario, Canada