Flaxseed Supplementation in Prediabetic Adults (LINAPRED)

NCT ID: NCT05245825

Last Updated: 2023-02-09

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

UNKNOWN

Clinical Phase

NA

Total Enrollment

96 participants

Study Classification

INTERVENTIONAL

Study Start Date

2021-11-20

Study Completion Date

2024-02-20

Brief Summary

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Prediabetes is the term used to describe the condition where blood glucose level is higher than normal but lower than the diagnosis criteria of type 2 diabetes mellitus (T2DM). This condition confers a high risk for the development of T2DM and other diseases. Prediabetes could be reversible with lifestyle modifications, which include medical-nutrition therapy. Within these modifications, a healthy diet high in fiber and sources of alpha-linolenic acid is recommended. Flaxseed is a seed that is considered a functional food because it can provide health benefits due to its high content of fiber, alpha-linolenic acid, and lignans, these components could improve glycemic control in prediabetes patients by different mechanisms. The purpose of this study is to assess the effect of flaxseed on glycemic control in prediabetic adults.

Detailed Description

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Prediabetes is a condition that increases the risk of T2DM and other diseases, its prevalence increases year after year despite being a reversible condition through lifestyle changes, diet, and medication. Therefore, it is important to find new strategies that, together with the known treatments, help to improve glycemic control in people with prediabetes and thus their risk of developing TDM2. Among these strategies may be the consumption of flaxseed, one of the main sources of alpha-linolenic acid (ALA), an omega-3 fatty acid, lignans, and fiber.

This open-label randomized clinical trial will include, prior informed consent, 96 men and women with prediabetes, subjects will be allocated in two groups, the intervention group or the control group. The intervention group will receive 30 g per day of ground flaxseed dissolved in water, (15 g in the morning and 15 g in the night), they will also be provided with a dietary plan. The Control group will not receive any supplementation, only a dietary plan controlled in alpha-linolenic acid.

The intervention will last 12 weeks; during this time, all patients will be scheduled every 2 weeks for follow-up visits. During the follow-up visits, subjects will be evaluated for changes in gastrointestinal symptoms, and adherence to supplementation, which will be assessed by a daily record, and the return of empty or unopened bags of flaxseed.

Every month, all subjects will undergo anthropometric, clinical, dietary, and biochemical evaluations that include measurements of body weight, body composition, waist, and hip circumferences, blood pressure, physical activity, quality of food intake, dietary intake, fasting plasma glucose, hemoglobin A1C, insulin, LDL-C, HDL-C, triglycerides, and total cholesterol; an oral glucose tolerance test will be performed at baseline and the end of the study to each subject.

At the end of the study, the obtained information will be shared with the scientific community to provide a possible food-based strategy for prediabetic adults in addition to the already known prediabetes treatment. All participants of the study will be beneficiated with free nutritional, anthropometric, and biochemical assessments.

Conditions

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Prediabetic State

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Flaxseed and dietary plan

30 g of ground flaxseed daily and a dietary plan

Group Type EXPERIMENTAL

Flaxseed

Intervention Type OTHER

A total of 30 g of ground flaxseed per day divided into two portions of 15 grams each, subjects will be asked to take 15 g in the morning and 15 g in the night dissolved in 400 ml of water. They will receive a dietary plan with a distribution of 20-30% of protein, 25-30% of lipids, and 40 to 45% of carbohydrates.

Control

Dietary plan controlled in alpha-linolenic acid consumption

Group Type OTHER

Dietary plan

Intervention Type OTHER

Dietary plan with a distribution of 20-30% of protein, 25-30% of lipids, and 40 to 45% of carbohydrates, controlled consumption of alpha-linolenic acid (no more than 6.8 g/day, the amount provided by 30 g of flaxseed).

Interventions

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Flaxseed

A total of 30 g of ground flaxseed per day divided into two portions of 15 grams each, subjects will be asked to take 15 g in the morning and 15 g in the night dissolved in 400 ml of water. They will receive a dietary plan with a distribution of 20-30% of protein, 25-30% of lipids, and 40 to 45% of carbohydrates.

Intervention Type OTHER

Dietary plan

Dietary plan with a distribution of 20-30% of protein, 25-30% of lipids, and 40 to 45% of carbohydrates, controlled consumption of alpha-linolenic acid (no more than 6.8 g/day, the amount provided by 30 g of flaxseed).

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Patients who agree to participate in the study once they have read and signed the informed consent
* Men and women
* Fasting glucose levels between 100 and 125 mg/dl
* Age 30-59 years
* Stable weight in the last 3 months (no more than 5% weight change)

Exclusion Criteria

* Fasting glucose \<100 and \>125 mg/dl
* Anemia
* Consumption of drugs that may modify glucose levels
* Consumption of flaxseed, chia, or omega-3, three months before the study
* Alternative diets (vegetarian, vegan, ketogenic, etc.)
* Pregnancy and breastfeeding
* Allergy or intolerance to flaxseed
Minimum Eligible Age

30 Years

Maximum Eligible Age

59 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Centro Universitario de Ciencias de la Salud, Mexico

OTHER

Sponsor Role lead

Responsible Party

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Gabriela Macedo Ojeda

Professor researcher A

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Gabriela Macedo Ojeda, PhD

Role: STUDY_DIRECTOR

University of Guadalajara

Locations

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Universidad de Guadalajara (CUCS)

Guadalajara, Jalisco, Mexico

Site Status RECRUITING

Countries

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Mexico

Central Contacts

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Gabriela Macedo, PhD

Role: CONTACT

+523310585200 ext. 33900

Yareni Zuñiga, PhD

Role: CONTACT

+523336190635 ext. 145

Facility Contacts

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Gabriela Macedo, PhD

Role: primary

+523310585200 ext. 33900

Yareni Zuñiga, PhD

Role: backup

+523336190635 ext. 145

Other Identifiers

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CI-01721

Identifier Type: -

Identifier Source: org_study_id

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