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Emulsion Lipid Digestion & Satiety Study - Effect of Physical State and Acid Stability

NCT ID: NCT03990246

Last Updated: 2020-10-27

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

15 participants

Study Classification

INTERVENTIONAL

Study Start Date

2019-06-12

Study Completion Date

2020-08-31

Brief Summary

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The purpose of this study is to compare the changes in blood lipids and feelings of satiety after consumption of acid stable or acid unstable oil-in-water emulsions in which the droplets are in either the liquid or partially solid (i.e. crystalline) states.

Detailed Description

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A double blinded randomized cross-over acute meal study will be carried out in which 15 healthy male participants will attend four study visits, separated by at least one week. On each study visit, fasted participants will consume either the emulsion with solid or liquid droplets and that is either acid stable or acid unstable, in a randomized order. All emulsions will have similar compositions, mainly differing in terms of droplet physical state, achieved by using lipids with different melting temperature. The emulsions will also contrast in terms of colloidal stability to acids, achieved by using different emulsifiers. This will isolate the impacts of physical state and acid stability, and their interactions. Postprandial lipemia, gastric emptying and satiety will be measured for 6 hours after consumption of each test beverage. The study meals will include crushed acetaminophen, the appearance of which will be measured in plasma as a measure of liquid content gastric emptying. It will also include periodic measurements of the gastric antrum area by ultrasound to assess the rate of gastric emptying. Participants will be asked to maintain their usual lifestyle habits throughout the study, with some changes in the 48 hour period leading up to each of the four visits.

Conditions

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Healthy

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

Primary Study Purpose

BASIC_SCIENCE

Blinding Strategy

DOUBLE

Participants Investigators

Study Groups

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Acid stable emulsion with solid droplets

Acid stable emulsion with solid droplets will be consumed by participants in one study visit along with 1500 mg of crushed and dissolved acetaminophen.

Group Type EXPERIMENTAL

Acid stable emulsion with solid droplets

Intervention Type OTHER

This will be a 250 mL acid stable beverage emulsion in which the droplets are crystalline. It will have identical similar to the other intervention, i.e. in a set of samples the emulsion lipid droplets are in the liquid state and are either acid stable or unstable and, in the other set of samples they are solid (i.e. crystallized) and are also either acid stable or unstable in the acidic environment of the stomach, and will be introduced at least 7 days apart. The emulsion will contain 20% of the lipid palm stearin with 2.2% of the emulsifier sorbitan monooleate (Tween80)

Acid stable emulsion with liquid droplets

Acid stable emulsion with liquid droplets will be consumed by participants in one study visit along with 1500 mg of crushed and dissolved acetaminophen.

Group Type EXPERIMENTAL

Acid stable emulsion with liquid droplets

Intervention Type OTHER

This will be a 250 mL acid stable beverage emulsion in which the droplets are liquid. It will have identical similar to the other intervention, i.e. in a set of samples the emulsion lipid droplets are in the liquid state and are either acid stable or unstable and, in the other set of samples they are solid (i.e. crystallized) and are also either acid stable or unstable in the acidic environment of the stomach, and will be introduced at least 7 days apart. The emulsion will contain 20 % of the lipid palm olein with 2.2% of the emulsifier sorbitan monooleate (Tween80)

Acid unstable emulsion with solid droplets

Acid unstable emulsion with solid droplets will be consumed by participants in one study visit along with 1500 mg of crushed and dissolved acetaminophen.

Group Type EXPERIMENTAL

Acid unstable emulsion with solid droplets

Intervention Type OTHER

This will be a 250 mL acid unstable beverage emulsion in which the droplets are solid. It will have identical similar to the other intervention, i.e. in a set of samples the emulsion lipid droplets are in the liquid state and are either acid stable or unstable and, in the other set of samples they are solid (i.e. crystallized) and are also either acid stable or unstable in the acidic environment of the stomach, and will be introduced at least 7 days apart. The emulsion will contain 20% of the lipid palm stearin with 2.5% of the emulsifier sorbitan monostearate (Span60)

Acid unstable emulsion with liquid droplets

Acid unstable emulsion with liquid droplets will be consumed by participants in one study visit along with 1500 mg of crushed and dissolved acetaminophen.

Group Type EXPERIMENTAL

Acid unstable emulsion with liquid droplets

Intervention Type OTHER

This will be a 250 mL acid unstable beverage emulsion in which the droplets are liquid. It will have identical similar to the other intervention, i.e. in a set of samples the emulsion lipid droplets are in the liquid state and are either acid stable or unstable and, in the other set of samples they are solid (i.e. crystallized) and are also either acid stable or unstable in the acidic environment of the stomach, and will be introduced at least 7 days apart. The emulsion will contain 20 % of the lipid palm olein with 2.5% of the emulsifier sorbitan monostearate (Span60)

Interventions

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Acid stable emulsion with solid droplets

This will be a 250 mL acid stable beverage emulsion in which the droplets are crystalline. It will have identical similar to the other intervention, i.e. in a set of samples the emulsion lipid droplets are in the liquid state and are either acid stable or unstable and, in the other set of samples they are solid (i.e. crystallized) and are also either acid stable or unstable in the acidic environment of the stomach, and will be introduced at least 7 days apart. The emulsion will contain 20% of the lipid palm stearin with 2.2% of the emulsifier sorbitan monooleate (Tween80)

Intervention Type OTHER

Acid stable emulsion with liquid droplets

This will be a 250 mL acid stable beverage emulsion in which the droplets are liquid. It will have identical similar to the other intervention, i.e. in a set of samples the emulsion lipid droplets are in the liquid state and are either acid stable or unstable and, in the other set of samples they are solid (i.e. crystallized) and are also either acid stable or unstable in the acidic environment of the stomach, and will be introduced at least 7 days apart. The emulsion will contain 20 % of the lipid palm olein with 2.2% of the emulsifier sorbitan monooleate (Tween80)

Intervention Type OTHER

Acid unstable emulsion with solid droplets

This will be a 250 mL acid unstable beverage emulsion in which the droplets are solid. It will have identical similar to the other intervention, i.e. in a set of samples the emulsion lipid droplets are in the liquid state and are either acid stable or unstable and, in the other set of samples they are solid (i.e. crystallized) and are also either acid stable or unstable in the acidic environment of the stomach, and will be introduced at least 7 days apart. The emulsion will contain 20% of the lipid palm stearin with 2.5% of the emulsifier sorbitan monostearate (Span60)

Intervention Type OTHER

Acid unstable emulsion with liquid droplets

This will be a 250 mL acid unstable beverage emulsion in which the droplets are liquid. It will have identical similar to the other intervention, i.e. in a set of samples the emulsion lipid droplets are in the liquid state and are either acid stable or unstable and, in the other set of samples they are solid (i.e. crystallized) and are also either acid stable or unstable in the acidic environment of the stomach, and will be introduced at least 7 days apart. The emulsion will contain 20 % of the lipid palm olein with 2.5% of the emulsifier sorbitan monostearate (Span60)

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* BMI of 18 - 26 kg/m2
* generally healthy
* non-smoking
* non to moderate alcohol drinkers
* fasting plasma cholesterol level \<5.2 mmol/L
* plasma triacylglycerol level \<1.7 mmol/L
* plasma glucose level \<5.6 mmol/L
* no history of gastric surgeries

Exclusion Criteria

* History of major medical conditions
* taking prescription medications/ over the counter medications
* taking natural health products/ dietary supplements (other than a multivitamin)
* oral antibiotic use in the previous 3 months
* planning to take oral antibiotics in the next 3 months
* food allergy/anaphylactic/life-threatening allergy
* smokers/ regular users of recreational drugs
* elite/ training athletes
* significant weight loss/ gain during the past 3 months
* previous reaction/ sensitivity to acetaminophen
* inability to avoid taking acetaminophen for 48 hours
* sensitivity to the artificial sweetener Sugar Twin® Sucralose and artificial vanilla extract
* not willing to consume Sugar Twin® Sucralose or Artificial vanilla.
Minimum Eligible Age

18 Years

Maximum Eligible Age

55 Years

Eligible Sex

MALE

Accepts Healthy Volunteers

Yes

Sponsors

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University of Guelph

OTHER

Sponsor Role lead

Responsible Party

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Amanda Wright, Ph.D.

Associate Professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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University of Guelph

Guelph, Ontario, Canada

Site Status

Countries

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Canada

References

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Hamad S, Tari NR, Mathiyalagan G, Wright AJ. Emulsion acid colloidal stability and droplet crystallinity modulate postprandial gastric emptying and short-term satiety: a randomized, double-blinded, crossover, controlled trial in healthy adult males. Am J Clin Nutr. 2021 Sep 1;114(3):997-1011. doi: 10.1093/ajcn/nqab116.

Reference Type DERIVED
PMID: 33963742 (View on PubMed)

Hamad S, Thilakarathna SH, Cuncins A, Brown M, Wright AJ. Emulsion Droplet Crystallinity Attenuates Short-Term Satiety in Healthy Adult Males: A Randomized, Double-Blinded, Crossover, Acute Meal Study. J Nutr. 2020 Sep 1;150(9):2295-2304. doi: 10.1093/jn/nxaa164.

Reference Type DERIVED
PMID: 32556204 (View on PubMed)

Other Identifiers

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19-04-003

Identifier Type: -

Identifier Source: org_study_id