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Human HealthNCT04335435

Avenanthramide and Saponin Bioavailability in Oat Bran

A study testing Oat Bran Consumption in people with Human Health and Polyphenols, run by North Carolina Agriculture & Technical State University.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Avenanthramides and saponins are types of chemical compounds found naturally in oats. Avenanthramides have anti-oxidant properties, anti-atherosclerotic, anti-inflammation, and anti-proliferative effects on cancer cells in vitro. Read more about this study

Who is it for?
Ages 18 to 50 yearsHealthy volunteers can take part
Conditions the study is for
Human Health, Polyphenols, Pharmacokinetics
What is being tested?
Oat Bran Consumption
Could I receive a placebo?
No, everyone receives an active treatment
How many people
13 participants
Where
No sites listed yet
Study dates
15 Jan 2016to 21 Jan 2016
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 50 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • BMI 18.5-25
  • Have blood and urine biochemical markers in normal range
  • Have no known allergy to oat relate foods
  • Be not taking antibiotics for six months
  • Be not currently taking medication
  • Be nonsmoking
  • Have no alcoholic intoxication
  • Have no extensive exposure to industrial waste

Who cannot join

  • Individuals with gout
  • Individuals with heart disease
  • Individuals with peripheral vascular diseases
  • Individuals with degenerative liver
  • Cancer patients
  • Patients with diabetes
  • Individuals with GI disorders
  • Individuals with endocrine disorders

About this study

Avenanthramides and saponins are types of chemical compounds found naturally in oats.

Avenanthramides have anti-oxidant properties, anti-atherosclerotic, anti-inflammation, and anti-proliferative effects on cancer cells in vitro. Oat saponins, or avenacosides, have the ability to bind cholesterol, and thus, the ability to lower blood cholesterol.

Read more

Oat bran is a known source of these dietary compounds. This study aims to determine the bioavailability of these compounds to in the urine of participants after ingesting an oat bran cereal, both before, and after for multiple time points.

Analytical chemistry will be used to determine the bioavailability of the oat compounds at each time point. This will help to establish a kinetic curve for the metabolism of these compounds.

Read the detailed description

Initially, the diet of the participants will be asked to restricted to avoid eating any polyphenols that might interfere with the employed analytical chemistry techniques. This period of diet restriction is the washout period. The list of foods to avoid are: oats, whole grains, fruits, vegetables, herbal supplements, ginger, coffee, tea, and chocolate.

After the washout period, a baseline urine and fecal sample will be collected from the participants, then a large portion of oat bran will be provided to the participants for consumption. The approximate portion size will be 100 g by dry weight. The participants will then provide urine samples during the designated time points. The time points for the urine collection are as follows:

  1. st sample, ~ 30 min to 1 hour prior to oat consumption
  2. nd sample: 0-2 hours after oat consumption
  3. rd sample: 2-4 hours after oat consumption
  4. th sample: 4-6 hours after oat consumption
  5. th sample: 6-9 hours after oat consumption
  6. th sample: 9-12 hours after oat consumption
  7. th sample: 12-24 hours after oat consumption
  8. th sample: 24-32 hours after oat consumption
  9. th sample: 48 hours after oat consumption These samples will be analyzed in using HPLC and LC/MS.
Being tested
Oat Bran Consumption
Keywords
Avenanthramides, Saponins, bioavailability, polyphenols, oat bran, pharmacokinetics

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Oat Bran ConsumptionDietary supplement

    Also called Gut Microbiome and Oat metabolism Study

    Oat bran (120 g), single dose.

Study groups in NCT04335435
Study groupRoleWhat they receive
Oat Bran ConsumptionExperimentalEach subject consumed 120 g of oat bran (by dry weight) in a single dose, and samples (urine and fecal) were collected at different time points following the administration of oat bran.
Receives: Dietary Supplement: Oat Bran Consumption

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Bioavailability of Avenanthramides and Saponins in Urine

    Liquid chromatography-tandem mass spectrometry will be utilized to assess the bioavailability of avenanthramides and saponins in urine.

    Measured: 0-2 hours post-dose

  2. Bioavailability of Avenanthramides and Saponins in Urine

    Liquid chromatography-tandem mass spectrometry will be utilized to assess the bioavailability of avenanthramides and saponins in urine.

    Measured: 2-4 hours post-dose

  3. Bioavailability of Avenanthramides and Saponins in Urine

    Liquid chromatography-tandem mass spectrometry will be utilized to assess the bioavailability of avenanthramides and saponins in urine.

    Measured: 4-6 hours post-dose

  4. Bioavailability of Avenanthramides and Saponins in Urine

    Liquid chromatography-tandem mass spectrometry will be utilized to assess the bioavailability of avenanthramides and saponins in urine.

    Measured: 6-9 hours post-dose

  5. Bioavailability of Avenanthramides and Saponins in Urine

    Liquid chromatography-tandem mass spectrometry will be utilized to assess the bioavailability of avenanthramides and saponins in urine.

    Measured: 9-12 hours post-dose

  6. Bioavailability of Avenanthramides and Saponins in Urine

    Liquid chromatography-tandem mass spectrometry will be utilized to assess the bioavailability of avenanthramides and saponins in urine.

    Measured: 12-24 hours post-dose

  7. Bioavailability of Avenanthramides and Saponins in Urine

    Liquid chromatography-tandem mass spectrometry will be utilized to assess the bioavailability of avenanthramides and saponins in urine.

    Measured: 24-32 hours post-dose

  8. Bioavailability of Avenanthramides and Saponins in Urine

    Liquid chromatography-tandem mass spectrometry will be utilized to assess the bioavailability of avenanthramides and saponins in urine.

    Measured: 32-48 hours post-dose

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted6 Apr 2020
  2. Study start15 Jan 2016
  3. Primary completion21 Jan 2016
  4. Study completion21 Jan 2016

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Basic science
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
13 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04335435
Sponsor's protocol ID
15-0179
Status last verified
Aug 2020
First submitted
2 Apr 2020
Last updated
6 Aug 2020
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No

Publications

  • Wang P, Zhang S, Yerke A, Ohland CL, Gharaibeh RZ, Fouladi F, Fodor AA, Jobin C, Sang S. Avenanthramide Metabotype from Whole-Grain Oat Intake is Influenced by Faecalibacterium prausnitzii in Healthy Adults. J Nutr. 2021 Jun 1;151(6):1426-1435. doi: 10.1093/jn/nxab006.

    PubMed 33694368

Questions about this trial

What is this clinical trial studying?

A study testing Oat Bran Consumption in people with Human Health and Polyphenols, run by North Carolina Agriculture & Technical State University.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 8 inclusion and 8 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 6 Aug 2020. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Bioavailability of Avenanthramides and Saponins in Urine (time frame: 0-2 hours post-dose). The study lists 8 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT04335435, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 6 Aug 2020.

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