- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT05017428
Absorption and Digestion Kinetics of Human Metabolites
August 17, 2021 updated by: Angela Zivkovic, PhD, University of California, Davis
The purpose of this pilot study is to evaluate the effects oral supplementation with four human metabolites (spermidine, nicotinamide, palmitoylethanolamide (PEA), and oleoylethanolamide(OEA)) at varying doses on the circulating blood levels of these metabolites as well as their immediate effects on plasma functionality and postprandial inflammation.
5 young healthy subjects will participate in a four armed study consisting of a Placebo arm and a Low, Medium, and High Dose arm.
Subjects will be given a standardized breakfast along with supplementation with either an escalating dose (Low: 1x, Medium: 2x, High: 3x) of a combination of spermidine, nicotinamide, PEA and OEA or a placebo control and a time course of their blood plasma will be collected after supplementation.
Plasma samples will be assessed for their concentration of spermidine, nicotinamide, PEA, and OEA as well as their experimental and clinical functionalities including their anti-inflammatory, antioxidant, and cholesterol efflux abilities on primary human macrophage.
Study Overview
Status
Completed
Conditions
Study Type
Interventional
Enrollment (Actual)
5
Phase
- Not Applicable
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Locations
-
-
California
-
Davis, California, United States, 95616
- University of California Davis
-
-
Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
20 years to 40 years (Adult)
Accepts Healthy Volunteers
Yes
Genders Eligible for Study
Male
Description
Inclusion Criteria:
- Age: 20-40 years old to constitute a young study population
- BMI: 19-27 kg/m2 to constitute a normal/healthy weight population
- Weight: 133lbs or more
- Subjects must be willing and able to consume a standardized breakfast bar containing cashews and dates (Larabar).
- Subjects must be willing to consume oral dietary supplement versions of spermidine, 1-methlynicotinamide, palmitoylethanolamide, and oleoylethanolamide.
- Subjects must be willing and able to undergo blood draws at the UC Davis Ragle Nutrition Center at 0, 1, 2, and 4 hours after supplementation with spermidine, niacinamide, palmitoylethanolamide, and oleoylethanolamide.
Exclusion Criteria:
- Smoker
- Anemia
- Documented chronic diseases including diabetes, thyroid disease, metabolic syndrome, cancer, autoimmune diseases, or previous cardiovascular events
- Any inflammatory bowel disease including IBS, Crohn's Disease, Celiac Disease
- Any allergy or sensitivity to wheat, gluten, or soy products
- Consumption of >1 alcoholic drink/day
- Current consumption of any probiotic, prebiotic, or dietary supplements
- Extreme dietary or exercise patterns
- Recent weight fluctuations (greater than 10% in the last six months)
- Regular use of over-the-counter allergy or pain medications (>1/week)
- Taking prescription lipid medications (e.g. statins) or other supplements known to alter lipoprotein metabolism such as isoflavones.
- Use of any form of hormonal birth control including oral contraception pills, hormonal IUDs or rings, or hormonal birth control patches
- Illness such as flu or cold of any kind within the last two weeks
- Allergy to components of standardized breakfast bar (cashew/dates)
- Changes to any of the above during the study period.
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
- Primary Purpose: Basic Science
- Allocation: Non-Randomized
- Interventional Model: Crossover Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Low Dose
The Low Dose arm provides subjects with supplementation with 5mg of spermidine (in the form of 5g of a 0.1% spermidine wheat germ extract), 500mg of nicotinamide, 400mg of palmitoylethanolamide, and 200mg of oleoylethanolamide.
|
Spermidine in the form of a 0.1% spermidine wheat germ extract
Other Names:
Nicotinamide given as niacinamide
Other Names:
Palmitoylethanolamide given at 98% purity
Other Names:
Oleoylehtanolamide given at 90% purity
Other Names:
|
Experimental: Medium Dose
The Medium Dose arm provides subjects with supplementation with 10mg of spermidine (in the form of 10g of a 0.1% spermidine wheat germ extract), 750mg of nicotinamide, 800mg of palmitoylethanolamide, and 400mg of oleoylethanolamide.
|
Spermidine in the form of a 0.1% spermidine wheat germ extract
Other Names:
Nicotinamide given as niacinamide
Other Names:
Palmitoylethanolamide given at 98% purity
Other Names:
Oleoylehtanolamide given at 90% purity
Other Names:
|
Experimental: High Dose
The Low Dose arm provides subjects with supplementation with 15mg of spermidine (in the form of 15g of a 0.1% spermidine wheat germ extract), 1000mg of nicotinamide, 1200mg of palmitoylethanolamide, and 600mg of oleoylethanolamide.
|
Spermidine in the form of a 0.1% spermidine wheat germ extract
Other Names:
Nicotinamide given as niacinamide
Other Names:
Palmitoylethanolamide given at 98% purity
Other Names:
Oleoylehtanolamide given at 90% purity
Other Names:
|
Placebo Comparator: Placebo
In this arm the participants are given supplementation with a placebo control consisting of 15g of wheat flour.
|
Wheat flour given as a placebo control
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Circulating Plasma Levels of Metabolites
Time Frame: 1, 2, and 4 hours after ingestion
|
Quantitative plasma concentrations of spermidine, nicotinamide, pamitoylethanolamide, and oleoylethanolamide (in nmol/L).
|
1, 2, and 4 hours after ingestion
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Anti-inflammatory capacity of plasma
Time Frame: 1, 2, and 4 hours after ingestion
|
Ex vivo assessment of the effects of subject plasma on the secretion of pro-inflammatory cytokine TNF-alpha (pg/mL) by primary human macrophage
|
1, 2, and 4 hours after ingestion
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start (Actual)
April 8, 2021
Primary Completion (Actual)
July 1, 2021
Study Completion (Actual)
July 1, 2021
Study Registration Dates
First Submitted
August 11, 2021
First Submitted That Met QC Criteria
August 17, 2021
First Posted (Actual)
August 23, 2021
Study Record Updates
Last Update Posted (Actual)
August 23, 2021
Last Update Submitted That Met QC Criteria
August 17, 2021
Last Verified
August 1, 2021
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- 1725738
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
NO
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
No
Studies a U.S. FDA-regulated device product
No
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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