The Effect of a Botanical Plant Extract on Gut Health, Immunity and Metabolic Disorders in Healthy Adults

NCT ID: NCT03921333

Last Updated: 2024-07-22

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

52 participants

Study Classification

INTERVENTIONAL

Study Start Date

2019-10-28

Study Completion Date

2024-03-25

Brief Summary

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There is an enormous increase in diabetes mellitus worldwide, especially in developed countries. Ninety percent of diabetes cases worldwide are of Type II diabetes mellitus (T2DM) as a result of greater prevalence of sedentary lifestyle, unhealthy diet and rise of obesity, as well as an increasing number of elderly populations. T2DM can be attributed to relative deficiency of insulin involving insulin resistance, aberrant synthesis of hepatic glucose and progressive deterioration of pancreatic beta-cell functions resulting in chronic hyperglycaemia. A growing amount of evidence has emerged in the last several years linking various nutrients and food sources with a positive management of T2DM. In in vitro studies, various botanical extracts have been found to significantly inhibit the activity of alpha-glucosidase and alpha-amylase. The inhibition of these enzymes' activity is a rational approach in managing glucose level for borderline and T2DM sufferers as inhibition of both alpha-amylase and alpha-glucosidase activity can profoundly reduce post-prandial increase in blood plasma glucose concentration following a mixed carbohydrate intake. Excessive levels of blood plasma glucose and free fatty acids impose a stressful condition for pancreatic beta-cells and other insulin sensitive cells resulting in the local secretion of pro-inflammatory cytokines and chemokines causing a continuous low levels of abnormal inflammation that alter insulin's action. As the body becomes less sensitive to insulin, the resulting insulin resistance leads to further inflammation, with more inflammation causing more insulin resistance, causing blood plasma sugar levels to continuously increase, eventually resulting in T2DM. In in vitro animal models, various compounds of botanical origin have also been shown to possess anti-inflammatory activities which can be beneficial in managing T2DM.

Detailed Description

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The aim of this human intervention study is to evaluate the impact of a botanical-based extract on gut health, immunity and metabolic disorders in healthy adults.

Conditions

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Healthy

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Dose response study
Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Participants Investigators

Study Groups

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Low dose plant extract

300 mg

Group Type ACTIVE_COMPARATOR

Low dose response efficacy of plant extracts

Intervention Type DIETARY_SUPPLEMENT

300mg

Middle dose plant extract

500 mg

Group Type ACTIVE_COMPARATOR

Middle dose response efficacy of plant extracts

Intervention Type DIETARY_SUPPLEMENT

500mg

High Dose plant extract

700 mg

Group Type ACTIVE_COMPARATOR

High Dose response efficacy of plant extracts

Intervention Type DIETARY_SUPPLEMENT

700mg

Placebo control

Cellulose microcrystalline

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DIETARY_SUPPLEMENT

Cellulose microcrystalline

Interventions

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Low dose response efficacy of plant extracts

300mg

Intervention Type DIETARY_SUPPLEMENT

Middle dose response efficacy of plant extracts

500mg

Intervention Type DIETARY_SUPPLEMENT

High Dose response efficacy of plant extracts

700mg

Intervention Type DIETARY_SUPPLEMENT

Placebo

Cellulose microcrystalline

Intervention Type DIETARY_SUPPLEMENT

Other Intervention Names

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Low dose Middle dose High Dose Placebo control

Eligibility Criteria

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Inclusion Criteria

* Females and males, aged 18 years to 65 years
* Body Mass Index (BMI) 27-35 kg/m2
* Not dieting within the last month and not having lost \>5% body weight in the previous year
* Not increased physical activity levels in the past 2-4 weeks or intending to modify them during the study
* Understands and is willing, able and likely to comply with all study procedures and restriction including being willing to follow the nutritional advice
* Able to eat most everyday foods
* Habitually consumes three standard meals a day (i.e. breakfast, lunch and dinner)

Exclusion Criteria

* Significant health problems (e.g. hypercholesterolaemia, diabetes, GI disorders)
* Taking any medication or supplements known to affect mineral or glucose metabolism within the past month and/or during the study
* Pregnant, planning to become pregnant or breastfeeding
* History of anaphylaxis to food
* Known allergies or intolerance to foods and/or to the study materials (or closely related compounds) or any of their stated ingredients
* BMI \<27 kg/m2 or \>35 kg/m2
* Volunteers self-reporting currently dieting or having lost \>5% body weight in the previous year
* Participants with abnormal eating behaviour
* Participation in another experimental study or receipt of an investigational drug/product within 30 days of the screening visit
* Volunteers who have significantly changed their physical activity in the past 2-4 weeks or who intend to change them during the study
* Participants receiving systemic or local treatment likely to interfere with the evaluation of the study parameters
* Participants on specific food avoidance diets
* Participants who work in appetite or feeding related areas
Minimum Eligible Age

18 Years

Maximum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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University of Roehampton

OTHER

Sponsor Role lead

Responsible Party

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DR ADELE COSTABILE

Director of the Study

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Adele Costabile, Dr

Role: STUDY_DIRECTOR

University of Roehampton

Steve Trangmar, Dr

Role: STUDY_DIRECTOR

University of Roehampton

Locations

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Health Sciences Research Centre, Life Sciences Department, University of Roehampton

London, UK, United Kingdom

Site Status

Countries

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United Kingdom

Other Identifiers

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LSC18/247

Identifier Type: -

Identifier Source: org_study_id

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