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Clinical Trial Details — Status: Active, not recruiting

Administrative data

NCT number NCT03974477
Other study ID # iMCSALT19-21
Secondary ID
Status Active, not recruiting
Phase N/A
First received
Last updated
Start date June 1, 2019
Est. completion date March 31, 2021

Study information

Verified date December 2020
Source Universidade do Porto
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

In this study, the researchers will evaluate the efficacy of an intervention using the SALT CONTROL H instrument (an innovative equipment to monitor and control salt) in workers at the University of Porto to reduce dietary salt intake. This is a randomized clinical trial with intervention conducted according to good clinical practice guidelines. The researchers will randomize 260 workers who meet the eligibility criteria and are enrolled in occupational health appointments. Prior to the intervention, the informed consent of the participants will be obtained and those who agree to participate will be allocated randomly in one of the two arms of the study (control or intervention), with balance of baseline characteristics (sex and hypertension). The intervention will last for 8 weeks, an individual session of presentation of SALT CONTROL H will be carried out, with explanation of how the equipment works in the culinary preparation with an adequate salt content, will be used an illustrative video and recipes with an adequate salt content; use of SALT CONTROL H at home by the participant to control the use of salt during the cooking process; supervision and enhancement of the use of equipment; daily occurrence log; and the application of a satisfaction questionnaire on the use of SALT CONTROL H. A leaflet will also be delivered about "The new Food Wheel, a guide to the daily food choice!". Control Group: No intervention will be carried out except the provision of a leaflet on "The new Food Wheel, a guide to the daily food choice!" to the participants. Baseline, at the 4th and 8th intervention weeks, and 6 months after intervention analysis will cover the following domains: urinary sodium excretion corresponding to a 24 hour urine collection as a proxy for salt intake; 24-hour urinary potassium excretion, sodium:potassium ratio, systolic and diastolic blood pressure, and anthropometric measurements. Urine samples will be collected according to standardized procedures and analyzed by a certified laboratory. Secondary data such as satisfaction questionnaire, daily use of equipment, iodine analysis of salt used and excreted in urine 24h, hydration status, analysis of quality of life and quality of diet will also be analyzed, as well as intestinal microbiota.


Recruitment information / eligibility

Status Active, not recruiting
Enrollment 260
Est. completion date March 31, 2021
Est. primary completion date March 31, 2021
Accepts healthy volunteers Accepts Healthy Volunteers
Gender All
Age group 18 Years and older
Eligibility Inclusion Criteria: - Adults (> 18 years) - Eat frequently cooked meals at home (> 4 days a week, of which at least 3 Sundays / month) - Have an occupational health appoitments at São João Hospital - Reported motivation to control salt consumption Exclusion Criteria: - Pregnant - Subjects with kidney disease, - Subjects with active infection with an impact on renal function, - Subjects with urinary incontinence, - Subjects with acute coronary syndrome, - Subjects with severe liver disease; - Subjects with heart failure; - Subjects who do not use salt for cooking; - Subjects with hypotension; - Subjects that work at Faculty that are the Sponsor of the study

Study Design


Related Conditions & MeSH terms


Intervention

Device:
SALT CONTROL H equipment to control and monitor salt during cooking process
Participants will use SALT CONTROL H at home during 8 weeks to cook meals with adequate salt content.

Locations

Country Name City State
Portugal Carla Gonçalves Porto

Sponsors (4)

Lead Sponsor Collaborator
Universidade do Porto Centro Hospitalar De São João, E.P.E., Fundação para a Ciência e a Tecnologia, Instituto Nacional de Saúde Doutor Ricardo Jorge

Country where clinical trial is conducted

Portugal, 

References & Publications (3)

Gonçalves C, Abreu S, Padrão P, Pinho O, Graça P, Breda J, Santos R, Moreira P. Sodium and potassium urinary excretion and dietary intake: a cross-sectional analysis in adolescents. Food Nutr Res. 2016 Apr 11;60:29442. doi: 10.3402/fnr.v60.29442. eCollection 2016. — View Citation

Gonçalves C, Monteiro S, Padrão P, Rocha A, Abreu S, Pinho O, Moreira P. Salt reduction in vegetable soup does not affect saltiness intensity and liking in the elderly and children. Food Nutr Res. 2014 Oct 6;58. doi: 10.3402/fnr.v58.24825. eCollection 2014. — View Citation

Moreira P, Sousa AS, Guerra RS, Santos A, Borges N, Afonso C, Amaral TF, Padrão P. Sodium and potassium urinary excretion and their ratio in the elderly: results from the Nutrition UP 65 study. Food Nutr Res. 2018 Feb 27;62. doi: 10.29219/fnr.v62.1288. eCollection 2018. — View Citation

Outcome

Type Measure Description Time frame Safety issue
Primary Change from Baseline 24h urinary sodium excretion at during and after intervention Sodium excretion as a proxy of dietary salt intake Baseline, at the 4th and 8th intervention weeks, and 6 months after intervention
Secondary Change from Baseline 24h urinary potassium excretion at during and after intervention Urinary potassium excretion as a proxy of dietary potassium intake Baseline, at the 4th and 8th intervention weeks, and 6 months after intervention
Secondary Change from Baseline Systolic Blood Pressure at during and after intervention Systolic blood pressure Baseline, at the 4th and 8th intervention weeks, and 6 months after intervention
Secondary Change from Baseline Diastolic Blood Pressure at during and after intervention Diastolic blood pressure Baseline, at the 4th and 8th intervention weeks, and 6 months after intervention
Secondary Change from Baseline Hydration Status at during and after intervention urinary osmolality (mOsm/kg) Baseline, at the 4th and 8th intervention weeks, and 6 months after intervention
Secondary Change from Baseline Perception of quality of life at during and after intervention Questionnaire WHOQOL-BREF, results from 0 to 100, higher values represent better perception of quality of life Baseline, at 8th intervention week, and 6 months after intervention
Secondary Change from Baseline Culinary competences at during and after intervention Questionnaire, questions scales from 1 to 6 according to culinary competences, higher values represent better culinary competences Baseline, at 8th intervention week, and 6 months after intervention
Secondary Change from Baseline Intestinal Microbiota at after intervention OTU (operational taxonomy unit) analysis (%) Baseline and at 8th intervention week
Secondary Change from Baseline Diet Quality at during and after intervention HDI (Healthy Diet Indicator), HDI-2015 was calculated as the sum of 7 components (range 0-7) and was classified as follows: high adherence (met 6-7 components), moderate adherence (met 4-5 components), and low adherence (met 0-3 components) Baseline, at the 4th and 8th intervention weeks, and 6 months after intervention
Secondary Change from Baseline Knowledges, attitudes and behaviours about salt at during and after intervention Questionnaire on Knowledge, Attitudes, Behavior toward Dietary Salt and Health from PAHO (n and %) Baseline, at the 4th and 8th intervention weeks, and 6 months after intervention
Secondary Change from Baseline Weight at during and after intervention Weight in kilograms Baseline, at the 4th and 8th intervention weeks, and 6 months after intervention
Secondary Change from Baseline Height at during and after intervention Height in meters Baseline, at the 4th and 8th intervention weeks, and 6 months after intervention
Secondary Change from Baseline Fat Mass and Fat Free Mass at during and after intervention Fat mass (in kg), Fat free mass (in kg) Baseline, at the 4th and 8th intervention weeks, and 6 months after intervention
Secondary Change from Baseline Extra and intra cellular water at during and after intervention Extra and intra cellular water, basal metabolic rate Baseline, at the 4th and 8th intervention weeks, and 6 months after intervention
Secondary Change from Baseline Extra and intra cellular water at during and after intervention Extra and intra cellular water (in kg) Baseline, at the 4th and 8th intervention weeks, and 6 months after intervention
Secondary Change from Baseline Basal Metabolic Rate at during and after intervention Basal metabolic rate (in kcal) Baseline, at the 4th and 8th intervention weeks, and 6 months after intervention
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