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Iodine Deficiency clinical trials

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NCT ID: NCT05934006 Completed - Iodine Deficiency Clinical Trials

Comparison of I-FFQ and Two Reference Methods

Start date: August 10, 2021
Phase:
Study type: Observational

Mild-to-moderate iodine deficiency remains a problem in many parts of the world, including Norway. Of particular concern are fertile, pregnant, and lactating women. The Norwegian Dairy Council developed a digital iodine-specific food frequency questionnaire (I-FFQ) for the assessment of iodine intake levels, but it has yet to be validated. The main objective was thus to investigate the relative validity of the I-FFQ by comparing estimates of iodine intake obtained from the I-FFQ against a single 24-hour recall (24HR) and urinary iodine concentration (UIC) in fertile women.

NCT ID: NCT05920603 Completed - Iodine Deficiency Clinical Trials

Iodine Status of the Indigenous Peoples (Karen) Living in Thailand

Start date: August 5, 2022
Phase:
Study type: Observational

In describing the iodine status involving health conditions of the minority groups, this observational study aims to learn about the iodine status of the Indigenous Peoples (Karen) in a subdistrict in western Thailand. The Participants will be collected their urine to determine urinary iodine concentrations At the same time, their household salt will be also collected to determine iodine content.

NCT ID: NCT05862376 Completed - Iodine Deficiency Clinical Trials

Nutritional Status and Iodized Salt Use Among School-aged Children

Start date: April 1, 2021
Phase:
Study type: Observational

To determine and explore the iodized salt concentration provided in the local community, especially in the Phu Kut district whether it meets the standard or not. This district is located in a mountainous area which means that the local community confronts with geographical access due to the limited transportation and road condition, in addition, it is quite far from downtown approximately 26 kilometers and it is difficult to access the iodized salt consumption. On the other hand, since 2013, the Lao People's Democratic Republic has implemented the iodized survey of urine among the primary students, this time could be the chance to compare based on the previous data, which will be an important source of the data for certifying the quality of iodized salt available in the local community that could be one cause of lacking iodized salt intake. Furthermore, the investigators could conduct the survey and monitor the current action plan related to iodized consumption in Laos as well, in order to eradicate diseases concerning with lacking iodized salt intake. Objectives 1. To investigate the nutritional status of school-aged children (SAC) living in Phu Kut City, Xieng Khouang province. 2. To investigate the iodine status and iodized salt use of school-aged children (SAC) living in Phu Kut City, Xieng Khouang province.

NCT ID: NCT05792241 Completed - Iodine Deficiency Clinical Trials

Acceptability and Nutritional Impact of Double-fortified Salt Containing Iodine and Folic Acid - Phase 1

DFS-IoFA-1
Start date: June 26, 2023
Phase:
Study type: Observational

The overarching objective of this two-phase project is to assess the effects of fortifying iodized salt with folic acid on improving women's folate status and thereby reduce the risk of neural tube defects (NTDs), which are highly prevalent in Ethiopia. The project will be conducted in two phases. The purpose of Phase 1, described herein, is to complete formative research in preparation for a community-based, randomized trial, which will be carried out in Phase 2. The objectives of Phase 1 are to: 1) assess the hematological condition and nutritional status with respect to folate, iodine, and other micronutrients among non-pregnant women of reproductive age (WRA) in the study communities, and 2) measure discretionary salt and dietary folate intakes of the women and their households.

NCT ID: NCT05773456 Completed - Iodine Deficiency Clinical Trials

Iodine Status After Intake of Sushi and Seaweed Salad

Start date: August 10, 2021
Phase: N/A
Study type: Interventional

Seaweed is becoming increasingly popular in the Western part of the world, especially sushi wrapped in nori and seaweed salad, also called wakame. There are limited data on the iodine content of different seaweed products in the Norwegian Food composition table. Furthermore, there is limited available research regarding in vivo bioavailability of iodine from seaweeds. The objective of this study is to assess whether iodine from a sushi meal (with nori, Porphyra spp), and a wakame salad (Undaria pinnatifida) has similar bioavailability as a potassium iodide reference supplement of similar iodine content.

NCT ID: NCT05724251 Completed - Periodontitis Clinical Trials

Effect of Iodine Deficiency on Periodontitis

Start date: October 30, 2021
Phase:
Study type: Observational [Patient Registry]

The goal of this observational study is to compare urine iodine levels of participants with/without periodontitis. The main question it aims to answer is there a relationship between iodine levels of urine and periodontitis. Participants will give urine samples without any intervention.

NCT ID: NCT05685056 Completed - Iodine Deficiency Clinical Trials

Nutrition & Food Choices in Early Pregnancy

PICk
Start date: March 25, 2017
Phase: N/A
Study type: Interventional

PICk study is a mHealth intervention in women trying to conceive and women up to 14 weeks pregnant, aiming to guide food choices, to achieve the recommended iodine intake through diet.

NCT ID: NCT05170997 Completed - Pregnancy Related Clinical Trials

Strategies to Improve Iodine Status in Early Pregnancy

Start date: October 14, 2021
Phase: N/A
Study type: Interventional

This study aims to investigate the benefit of increased intake of cows' milk during pregnancy on iodine status.

NCT ID: NCT04875377 Completed - Iodine Deficiency Clinical Trials

Seaweed Iodine Delivered Via Food or Supplementation

INNOVATE
Start date: February 12, 2018
Phase: N/A
Study type: Interventional

In this project, the investigators propose an intervention design testing the efficacy of a food reformulated with seaweed as an ingredient in meal, capsules against placebo and no intervention controls. The randomised control trial (supplementation) will last 24 weeks. The aim is to study the effect of the food matrix on variables associated with iodine nutrition: iodine status and thyroid function.

NCT ID: NCT04860622 Completed - Pregnancy Related Clinical Trials

Normal Range of TSH and FT4 in Pregnancy

NRTSHTURKEY
Start date: April 1, 2021
Phase:
Study type: Observational [Patient Registry]

Physiological changes necessitate the use of pregnancy-specific reference ranges for thyrotrophin (TSH) and free T4 (FT4) to diagnose thyroid dysfunction during pregnancy. Although many centers use fixed upper limits for TSH of 2.5 or 3.0 mU/L, this may lead to overdiagnosis or even overtreatment. The new guidelines of the American Thyroid Association have considerably changed recommendations regarding thyroid function reference ranges in pregnancy accordingly. Any hospital or physician that is still using the 2.5 or 3.0 mU/l cut-off for TSH during pregnancy should evaluate their own lab-specific cut-offs. The investigator's objective is to establish a rational reference range of serum TSH for the diagnosis of subclinical hypothyroidism in the first, second, and third trimester of pregnant women in the Sancaktepe region in Turkey.