Effect of Lubricity of Food Gels on Satiation and Satiety

NCT ID: NCT04240795

Last Updated: 2020-08-14

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

17 participants

Study Classification

INTERVENTIONAL

Study Start Date

2019-11-01

Study Completion Date

2020-07-31

Brief Summary

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The main aim of the study is to elucidate the influence of fibre-based hydrogels differing in their mechanical properties (characterized both instrumentally and sensorially) in terms of low/ high lubricity on satiety, satiation and salivary biomarkers.

Detailed Description

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An acute, randomized cross-over study that compares two types of fibre-based hydrogels differing in their lubrication properties, resulting in different pastiness and instrumental mechanical properties (lubricity). The gels are prepared using dietary fibres (kappa carrageenan, alginate). Both hydrogels contain added watermelon flavor, food grade color and sweetener. Water acts as a control and has the same flavor, color and sweetness to match the hydrogels.

Participants are asked come to the laboratory on three occasions. Before participating, each participant is screened for eligibility criteria using an online health screening questionnaire and Three Factors Eating Questionnaire. Participants are offered one of the three products (water or either of the two gels), the order of which is randomized and counterbalanced.

Participants are instructed to fast for 11 hours and to restrict from drinking alcohol for 24 hours before each session. In the first session, weight and height are measured. Participants then provide baseline (- 5 minutes) appetite ratings on a 100 mm visual analogue scale (VAS). After that they are given a standardized breakfast (females - 250kcal, males - 350 kcal). Then, participants are asked to rate their appetite on a 100-mm VAS in every 30 minutes for the next 2.5 hours. After that, they are given the preload - either hydrogels differing in their structure complexity or water. After consuming the preload, appetite ratings are recorded by the participants on three time points on 100-mm VAS. Ad libitum food is offered as lunch after 30 minutes after ingesting the preload and the last VAS is taken. Food intake is measured. Saliva is taken three times during each session after breakfast, before and after preload consumption to measure protein, mucin content, amylase activity, and salivary lubricity (tribology).

Conditions

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Appetitive Behavior

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

Tightly controlled cross-over study design with three arms.
Primary Study Purpose

BASIC_SCIENCE

Blinding Strategy

SINGLE

Participants

Study Groups

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Low lubricity (LL) hydrogels containing fibre-based beads

Participants are given a preload of 30 g of low lubricity hydrogels (alginate beads in kappa-carrageenan hydrogels) after 2.5 hours after a standardized breakfast. After 30 minutes of the preload, participants are given ad libitum lunch. They are asked to eat "as much or as little as they want, until they feel comfortably full".

Group Type EXPERIMENTAL

Low lubricity (LL) hydrogels containing fibre-based beads

Intervention Type DIETARY_SUPPLEMENT

The preload is made from kappa-carrageenan and alginate beads of 450 μm size. It contains no additional macronutrient but has food-grade watermelon flavor, color, and non-nutritive sweetener.

High lubricity (HL) hydrogels containing no fibre-based beads

Participants are given a preload of 30 g of high lubricity hydrogels (no beads in kappa-carrageenan and alginate mixed hydrogels) after 2.5 hours after a standardized breakfast. After 30 minutes of the preload, participants are given ad libitum lunch. They are asked to eat "as much or as little as they want, until they feel comfortably full".

Group Type ACTIVE_COMPARATOR

Low lubricity (LL) hydrogels containing fibre-based beads

Intervention Type DIETARY_SUPPLEMENT

The preload is made from kappa-carrageenan and alginate beads of 450 μm size. It contains no additional macronutrient but has food-grade watermelon flavor, color, and non-nutritive sweetener.

Water

The water containing the same watermelon flavor, color and sweetness was given as control to match the gels. Participants receive the same amount of water like hydrogels - 30 g after 2.5 hours after a standardized breakfast. After 30 minutes of the preload, participants are given ad libitum lunch. They are asked to eat "as much or as little as they want, until they feel comfortably full".

Group Type PLACEBO_COMPARATOR

Low lubricity (LL) hydrogels containing fibre-based beads

Intervention Type DIETARY_SUPPLEMENT

The preload is made from kappa-carrageenan and alginate beads of 450 μm size. It contains no additional macronutrient but has food-grade watermelon flavor, color, and non-nutritive sweetener.

Interventions

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Low lubricity (LL) hydrogels containing fibre-based beads

The preload is made from kappa-carrageenan and alginate beads of 450 μm size. It contains no additional macronutrient but has food-grade watermelon flavor, color, and non-nutritive sweetener.

Intervention Type DIETARY_SUPPLEMENT

Other Intervention Names

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High lubricity (HL) hydrogels containing no fibre-based beads Water

Eligibility Criteria

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Inclusion Criteria

* With a normal weight (BMI=18.5 - 24.99 kg/m²)
* Generally healthy

Exclusion Criteria

* A smoker
* Having oral infections/diseases/problems in chewing and swallowing
* Anyone with a chronic or acute health condition that may affect the ability to sense, eat, digest or absorb food
* Anyone currently using prescribed or non-prescribed medication that may interfere with the ability to sense, eat, digest or absorb food
* Anyone who is pregnant or lactating
* Anyone with a food allergy or intolerance
* Anyone who are on a special diet or are taking protein/fiber supplements
* Anyone who cannot tolerate food gels
* Underweight (BMI \<18.5 kg/m²) or overweight (25 - 29.99 kg/m²) or obese (BMI=\>29.99 kg/m²)
* Suffer from any blood borne disease e.g. HIV, Hep B
Minimum Eligible Age

18 Years

Maximum Eligible Age

55 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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University of Leeds

OTHER

Sponsor Role lead

Responsible Party

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Anwesha Sarkar

Associate Professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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University of Leeds

Leeds, West Yorkshire, United Kingdom

Site Status

Countries

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United Kingdom

Other Identifiers

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LUBSAT (18-049)

Identifier Type: -

Identifier Source: org_study_id

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