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Clinical Trial Details — Status: Recruiting

Administrative data

NCT number NCT06234982
Other study ID # DTUNationalFoodInstitute
Secondary ID
Status Recruiting
Phase
First received
Last updated
Start date January 1, 2024
Est. completion date January 1, 2025

Study information

Verified date January 2024
Source DTU National Food Institute
Contact Gitte Ravn-Haren, Ph.D
Phone 93518989
Email girh@food.dtu.dk
Is FDA regulated No
Health authority
Study type Observational

Clinical Trial Summary

The overall aim of the study is to monitor the effects of the increased iodine fortification level implemented in 2019 on iodine intake from the diet (incl. dietary supplements) and the excretion of iodine in urine in children aged 2-10 years.


Description:

All children in Denmark receive iodine fortification through the iodine fortification program of salt, bread, and baked goods. As DANSDA's results demonstrate a risk of increased iodine intake among the youngest children, it is necessary to carry out the study in these age groups, as this can have harmful effects on children's thyroid health as well as neural development. Children are the group in society that most easily exceeds the intake of iodine, whereas many pregnant women still find it difficult to achieve a sufficient intake with the current level of fortification. Through this study, it is possible to detect and deal with a potentially too high intake in children in time. If, on the other hand, the study shows that the children have a satisfactory intake of iodine, the iodine fortification level can potentially be increased, so that the iodine intake is increased in the groups that still have an iodine intake below the recommended level. The study consists of two sub-studies. The specific objectives of the sub-studies are to: - Iodine status (1): Estimate the iodine intake and food sources of iodine among children after the increased iodine fortification and assess whether some children are at risk of an increased iodine intake (2-10 years old). - Diet validation (2): Validate the estimated iodine intake based on dietary records against the actual iodine intake measured in spot urines (4-10-year-olds). A total of 600 participants are recruited, divided into 200 participants in each of three age groups: 1) 2-3 years, 2) 4-6 years and 3) 7-10 years. A short, electronic questionnaire is completed for all participants. In the iodine status study (1), the child's parents/guardians collect one urine spot sample from each participant to measure the population's iodine intake. The diet validation study (2) is carried out in a subsample of 100 participants divided into 50 participants in each of the age groups 2) 4-6 years and 3) 7-10 years. From here, the child's parents/guardian register data for the dietary intake every day for 7 consecutive days and collect one spot urine per day on the same 7 days when the dietary registration takes place. All examinations are considered harmless.


Recruitment information / eligibility

Status Recruiting
Enrollment 600
Est. completion date January 1, 2025
Est. primary completion date January 1, 2025
Accepts healthy volunteers Accepts Healthy Volunteers
Gender All
Age group 2 Years to 10 Years
Eligibility Inclusion Criteria: - Children aged 2-10 years Exclusion Criteria: - Chronic diseases that can influence iodine metabolism (metabolic diseases, kidney or liver diseases or diabetes) - Parents/guardians do not have the opportunity to fill in the basic questionnaire or the diet questionnaire electronically

Study Design


Related Conditions & MeSH terms


Locations

Country Name City State
Denmark Technical University of Denmark Kongens Lyngby Copenhagen

Sponsors (2)

Lead Sponsor Collaborator
DTU National Food Institute University Hospital Bispebjerg and Frederiksberg

Country where clinical trial is conducted

Denmark, 

Outcome

Type Measure Description Time frame Safety issue
Primary Urinary Iodine Excretion Iodine and creatinine in urine samples Baseline
Secondary Iodine intake Dietary intake assessed by a 7-day web-based food diary Baseline
Secondary BMI Weight and height will be combined to report BMI in kg/m^2 Baseline
Secondary Socio-demographic background information Questionnaire about parents' education Baseline
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