SalT Reduction InterVEntion: Metabolic, Behavioral and Health Consequences of Reducing Salt in Bread

NCT ID: NCT03810885

Last Updated: 2019-07-12

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

316 participants

Study Classification

INTERVENTIONAL

Study Start Date

2018-02-01

Study Completion Date

2019-04-30

Brief Summary

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The trial is conducted as a randomized controlled trial including children and adults recruited as families. The families are randomly allocated into three groups to investigate the effect of different salt reduction strategies in a period of 3-4 months. Families in the first intervention group are receiving salt reduced bread. Families in the second intervention group are receiving salt reduced bread in combination with dietary counselling to reduce salt and increase potassium intake. Families in the control group are receiving bread with a regular content of salt and no dietary counselling.

Detailed Description

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The trial is conducted as a randomized controlled trial including children and adults recruited as families. The families are randomly allocated into three groups to investigate the effect of different salt reduction strategies in a period of 3-4 months. Families in the first intervention group are receiving salt reduced bread. Families in the second intervention group are receiving salt reduced bread in combination with dietary counselling to reduce salt and increase potassium intake. Families in the control group are receiving bread with a regular content of salt and no dietary counselling.

Participants will be instructed to replace their usual consumption of bread by the bread products provided in the study. In all other respects, participants will be requested to live their lives as usual without changing any habits, except the families receiving dietary counselling. The participants will be unaware of the treatment groups and the salt content of the bread products will be blinded to the participants.

Families will attend a physical examination at baseline and at 3-4 months follow-up. The health examination includes anthropometrics, blood pressure measurements and blood samplings for analysis of glucose, lipid metabolism and hormone balance. Urine samples will be collected to investigate the sodium and potassium content. Furthermore salt-sensitivity and preference tests will be made. After both health examinations the families will collect three repeated 24-hour urine collections at home and fill in a 7 days dietary record.

After data collection, blood and urine samples will be analysed. Analyses from both baseline and follow-up are expected ultimo February 2019, whereby data cleaning and statistical analyses will be performed.

Conditions

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Salt Intake

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

FACTORIAL

Active Comparator:

Intervention A : Salt reduced bread

Assigned Interventions: Participants will receive salt reduced bread and no dietary counselling.

Active Comparator:

Intervention A+B: Salt reduced bread + Dietary counselling

Assigned Interventions: Participants in this group will receive both salt reduced bread and dietary counselling to reduce salt and increase potassium intake.

Placebo comparator:

Control: normal bread

Assigned Interventions: Participants will receive bread with a regular content of salt and no dietary counselling.
Primary Study Purpose

PREVENTION

Blinding Strategy

SINGLE

Participants
The participants will be unaware of the treatment groups and the salt content of the bread products will be blinded to the participants.

Nurses examining participants at baseline and follow-up will be unaware of which intervention group the families were randomized into. The primary outcome measures will be blinded to the outcome assessors.

Study Groups

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Salt reduced bread

Bread with reduced salt content

Group Type EXPERIMENTAL

Bread with reduced salt content

Intervention Type OTHER

Bread with gradually lowered salt content

Dietary advice and Salt reduced bread

bread with reduced salt content, dietary advice

Group Type EXPERIMENTAL

Bread with reduced salt content

Intervention Type OTHER

Bread with gradually lowered salt content

Dietary advice

Intervention Type BEHAVIORAL

Participants will receive information on how to lower salt and increase potassium intake

Normal bread

Bread with standard salt content

Group Type PLACEBO_COMPARATOR

Bread with standard salt content

Intervention Type OTHER

Bread with normal salt content

Interventions

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Bread with reduced salt content

Bread with gradually lowered salt content

Intervention Type OTHER

Dietary advice

Participants will receive information on how to lower salt and increase potassium intake

Intervention Type BEHAVIORAL

Bread with standard salt content

Bread with normal salt content

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Participants living with children
* Adults 18-69 years
* Children 3-17 years
* Daily intake of bread

Exclusion Criteria

* Diabetes
* Cardiovascular disease
* Antihypertensive treatment
* Lipid-lowering treatment
* Pregnancy
* U-albumin \> 300 mg/day
* Celiac disease
Minimum Eligible Age

3 Years

Maximum Eligible Age

69 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Bispebjerg Hospital

OTHER

Sponsor Role lead

Responsible Party

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Ulla Toft

Associate Professor, PhD, MSc, Head of Section of Health Promotion and Prevention

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Ulla Toft, MSc, PhD

Role: PRINCIPAL_INVESTIGATOR

Capital Region, Copenhagen, Denmark

Locations

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Center fot Clinical Research and Prevention

Glostrup Municipality, Capital Region, Denmark

Site Status

Countries

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Denmark

Provided Documents

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Document Type: Study Protocol

View Document

Document Type: Statistical Analysis Plan

View Document

Other Identifiers

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H-17030995

Identifier Type: -

Identifier Source: org_study_id

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