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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT05510050
Other study ID # PRO-FY2022-131
Secondary ID
Status Completed
Phase N/A
First received
Last updated
Start date May 13, 2022
Est. completion date March 3, 2023

Study information

Verified date September 2023
Source University of Memphis
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

The present study will compare the effect of Manapol to DaltonMax on select measures of health. Currently, both ingredients are sold both as a stand-alone dietary supplement and as an active ingredient within various multi-nutrient products. Immune function will be assessed using blood samples to determine white blood cell counts and distributions, and cytokine levels with/without lipopolysaccharide (LPS) challenge. Additionally, effects specific to antioxidant function and glucose regulation, glucose, insulin, lipid peroxidation, and advanced oxidation protein products will be observed. Antioxidant capacity will also be measured. as well as completion of weekly questionnaires regarding gut health, and microbiome analysis.


Description:

Previous research has identified many beneficial properties of aloe vera extracts on health including the "induction of apoptosis, hepatoprotection, antioxidant, antibacterial, antidiabetic, antihyperglycemic, and anti-inflammatory effects". Further, aloe vera may ameliorate digestive issues such as irritable bowel syndrome, as indicated in a recent meta-analysis, although findings are somewhat inconsistent across studies and may be dependent on aloe form and dosage. The present study will compare the effect of Manapol to DaltonMax on select measures of health. Currently, both ingredients are sold both as a stand-alone dietary supplement and as an active ingredient within various multi-nutrient products. Immune function will be assessed using blood samples to determine white blood cell counts and distributions, and cytokine presence (IL-1β, IL-6, IL-10, TNF-alpha) with/without lipopolysaccharide (LPS) challenge. Additionally, aloe has been noted to have multiple effects specific to antioxidant function and glucose regulation, glucose, insulin, lipid peroxidation, and advanced oxidation protein products. An increase in blood antioxidant capacity was noted in an earlier study of Ambrotose, therefore antioxidant capacity will also be measured. As prior studies of aloe, coupled with anecdotal reports, provide evidence specific to a potential benefit to gut health, subjects will complete weekly questionnaires regarding gut health, and have a microbiome analysis performed.


Recruitment information / eligibility

Status Completed
Enrollment 60
Est. completion date March 3, 2023
Est. primary completion date November 3, 2022
Accepts healthy volunteers Accepts Healthy Volunteers
Gender All
Age group 18 Years to 65 Years
Eligibility Inclusion Criteria: - no consumption of alcohol-containing beverages within 48 hours of testing - no consumption of caffeine-containing beverages within 48 hours of testing - no strenuous exercise within 48 hours of testing - be able to fast overnight (>10 hrs) Exclusion Criteria: - self-reported active infection or illness of any kind - diabetic - diagnosed with an autoimmune disease including but not limited to rheumatoid arthritis, lupus, Multiple sclerosis, Guillain-Barre syndrome, Psoriasis - diagnosed GI-related health problems - using tobacco products - allergic or hypersensitive to aloe vera - if female, pregnant or lactating - using antibiotics - using a medication/dietary supplement that alters immune or digestive function or that might otherwise impact study outcomes including, but not limited to supplements with immune, immunity, or defense in their name, immunosuppressants including Cyclosporines (Neoral®, Gengraf®, Sandimmune®), Tacrolimus (Prograf®, FK506), Mycophenolate mofetil (CellCept®), Prednisone, Azathioprine (Imuran®), Sirolimus (Rapamune®), Daclizumab and Basiliximab (Zenapax® and Simulect®), OKT3® (monoclonal antibody), Anti-Fungal Medications (Mycelex Troche®, Nystatin® Swish and Swallow, and Diflucan®), Antiviral Medications: Zovirax® (acyclovir), Cytovene® (ganciclovir), and Valcyte® (valganciclovir), Diuretics: Lasix® (furosemide), Antibiotics: Bactrim® (septra), Anti-Ulcer Medications: Prilosec® (omeprazole), Prevacid® (lansoprazole), Zantac® (ranitidine), Axid® (nizatidine), Carafate®(sucralfate), Pepcid®

Study Design


Related Conditions & MeSH terms


Intervention

Dietary Supplement:
Aloe Vera Extract 1
2 capsules taken daily for 30 days
Control
2 capsules taken daily for 30 days
Aloe Vera Extract 2
2 capsules taken daily for 30 days

Locations

Country Name City State
United States Center for Nutraceutical and Dietary Supplement Research Memphis Tennessee

Sponsors (2)

Lead Sponsor Collaborator
University of Memphis Mannatech

Country where clinical trial is conducted

United States, 

Outcome

Type Measure Description Time frame Safety issue
Primary White blood cell characterization A blood sample will be used to characterize the white blood cell population (cell count and distribution) baseline
Primary White blood cell characterization A blood sample will be used to characterize the white blood cell population (cell count and distribution) on day 30 of treatment
Primary Cytokine Panel for plasma IL-1beta, IL-6, IL-10, and TNF-alpha will be quantified from plasma baseline
Primary Cytokine Panel for plasma IL-1beta, IL-6, IL-10, and TNF-alpha will be quantified from plasma on day 30 of treatment
Primary Cytokine Panel on LPS stimulated whole blood IL-1beta, IL-6, IL-10, and TNF-alpha will be quantified on whole blood treated with LPS baseline
Primary Cytokine Panel on LPS stimulated whole blood IL-1beta, IL-6, IL-10, and TNF-alpha will be quantified on whole blood treated with LPS on day 30 of treatment
Primary Glucose Glucose levels in blood will be measured baseline
Primary Glucose Glucose levels in blood will be measured on day 30 of treatment
Primary Insulin Insulin levels in a blood sample will be measured baseline
Primary Insulin Insulin levels in a blood sample will be measured on day 30 of treatment
Primary Lipid peroxidation Lipid peroxiation in a blood sample will be quantified baseline
Primary Lipid peroxidation Lipid peroxiation in a blood sample will be quantified on day 30 of treatment
Primary Advanced oxidation protein products Advanced oxidation protein products in a blood sample will be quantified baseline
Primary Advanced oxidation protein products Advanced oxidation protein products in a blood sample will be quantified on day 30 of treatment
Primary Blood antioxidant capacity Blood antioxidant capacity will be quantified from a blood sample baseline
Primary Blood antioxidant capacity Blood antioxidant capacity will be quantified from a blood sample on day 30 of treatment
Primary Self-reported assessment of fatigue & associated variables Subjects will self-report feelings by marking a scale from 0 (None) to 10 (Extreme) for different fatigue associated variables: Attentive, Tired, Alert, Groggy, Focuse, Sluggish, Energetic, Lethargic, Enthusiastic, Sore, Well-rested, Fatigue, Sickly, Mental Stress. baseline
Primary Self-reported assessment of fatigue & associated variables Subjects will self-report feelings by marking a scale from 0 (None) to 10 (Extreme) for different fatigue associated variables: Attentive, Tired, Alert, Groggy, Focuse, Sluggish, Energetic, Lethargic, Enthusiastic, Sore, Well-rested, Fatigue, Sickly, Mental Stress. Week 1 of treatment
Primary Self-reported assessment of fatigue & associated variables Subjects will self-report feelings by marking a scale from 0 (None) to 10 (Extreme) for different fatigue associated variables: Attentive, Tired, Alert, Groggy, Focuse, Sluggish, Energetic, Lethargic, Enthusiastic, Sore, Well-rested, Fatigue, Sickly, Mental Stress. Week 2 of treatment
Primary Self-reported assessment of fatigue & associated variables Subjects will self-report feelings by marking a scale from 0 (None) to 10 (Extreme) for different fatigue associated variables: Attentive, Tired, Alert, Groggy, Focuse, Sluggish, Energetic, Lethargic, Enthusiastic, Sore, Well-rested, Fatigue, Sickly, Mental Stress. Week 3 of treatment
Primary Self-reported assessment of fatigue & associated variables Subjects will self-report feelings by marking a scale from 0 (None) to 10 (Extreme) for different fatigue associated variables: Attentive, Tired, Alert, Groggy, Focuse, Sluggish, Energetic, Lethargic, Enthusiastic, Sore, Well-rested, Fatigue, Sickly, Mental Stress. Week 4 of treatment
Primary Subjects' perceived digestive/bowel health Subjects will record their bowel movements/health using the Bristol stool chart weekly and questionnaire on their upper abdominal, lower abdominal, and other digestive symptoms on a scale 0 (no problem at all) to 9 (the worst it has ever been) baseline
Primary Subjects' perceived digestive/bowel health Subjects will record their bowel movements/health using the Bristol stool chart weekly and questionnaire on their upper abdominal, lower abdominal, and other digestive symptoms on a scale 0 (no problem at all) to 9 (the worst it has ever been) Week 1 of treatment
Primary Subjects' perceived digestive/bowel health Subjects will record their bowel movements/health using the Bristol stool chart weekly and questionnaire on their upper abdominal, lower abdominal, and other digestive symptoms on a scale 0 (no problem at all) to 9 (the worst it has ever been) Week 2 of treatment
Primary Subjects' perceived digestive/bowel health Subjects will record their bowel movements/health using the Bristol stool chart weekly and questionnaire on their upper abdominal, lower abdominal, and other digestive symptoms on a scale 0 (no problem at all) to 9 (the worst it has ever been) Week 3 of treatment
Primary Subjects' perceived digestive/bowel health Subjects will record their bowel movements/health using the Bristol stool chart weekly and questionnaire on their upper abdominal, lower abdominal, and other digestive symptoms on a scale 0 (no problem at all) to 9 (the worst it has ever been) Week 4 of treatment
Primary Microbiome analysis Subjects will submit a stool sample kit for microbiome analysis baseline
Primary Microbiome analysis Subjects will submit a stool sample kit for microbiome analysis on Day 30 of treatment
Secondary Food Logs Subjects will record their dietary consumption for the 5 days leading up to each test visit baseline
Secondary Food Logs Subjects will record their dietary consumption for the 5 days leading up to each test visit on Day 30 of treatment
Secondary Resting Blood Pressure Blood pressure will be measured following a 10 min rest using an automated system baseline
Secondary Resting Blood Pressure Blood pressure will be measured following a 10 min rest using an automated system on Day 30 of treatment
Secondary Resting Heart Rate Heart rate will be measured following a 10 min rest using an automated system baseline
Secondary Resting Heart Rate Heart rate will be measured following a 10 min rest using an automated system on day 30 of treatment
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