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Hypothyroidism clinical trials

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NCT ID: NCT02301520 Completed - Clinical trials for Vitamin D Deficiency

Vitamin D, Iodine, and Lead Levels in Haitian Infants and Children.

Haiti
Start date: January 2015
Phase: N/A
Study type: Observational

Vitamin D deficiency is common worldwide, including in infants and children, and rickets remains a public health concern in many developing countries. The vitamin D status and prevalence of vitamin D deficiency in the Haitian population has not been studied. There is currently no approved point-of-care testing device for vitamin D deficiency. Iodine deficiency and resulting hypothyroidism is the leading cause of preventable neuro-developmental delay and cognitive impairment worldwide. Young infants and children are especially susceptible to sequelae of disruption in thyroid function given the dependence of the developing brain on sufficient levels of thyroid hormone. Perchlorate and thiocyanate have been described as potential environmental disrupters of thyroid function. Lead intoxication is a significant cause of disease throughout the world. Millions of people have suffered the effects of lead poisoning. Although most developed countries have taken drastic measures to limit the environmental lead levels, many countries in the developing world have not been able to address, or even assess, the problem. Our objectives are to study the following three components in 300 Haitian children between 9 months and 6 years of age in three different geographical areas of Haiti: 1) Vitamin D status and prevalence of rickets, environmental factors associated with low vitamin D levels, and the accuracy and efficacy of a vitamin D point-of-care testing (POCT) device for the screening of vitamin D insufficiency. 2) Iodine status and thyroid function, and environmental disruptors such as perchlorate and thiocyanate as potential risk factors for abnormal thyroid function. 3) Lead levels and the extent of childhood lead poisoning.

NCT ID: NCT02280330 Completed - Hypothyroidism Clinical Trials

Iodine Status of Preschoolers Given Micronutrient Powder for 6 Months

MNP-CAR
Start date: November 2014
Phase: Phase 4
Study type: Interventional

Iodine deficiency remains widespread worldwide with children as among the vulnerable groups considering their stage of growth and development. In the Philippines, current data shows an optimal status among schoolchildren, however no data exists on iodine status nor intake of preschool children. One recent approach to improvement of the vitamin and mineral status of the population is home fortification using micronutrient powder or MNP. This contains 15 vitamins and minerals, including iodine and iron. Current guidelines exist for MNP use to improve iron status and reduce anemia among infants and young children 6-23 months old, but did not mention use among preschoolers such as those in day care centers. This study, therefore, aims to compare the iodine status and growth of day care children given MNP for 6 months.

NCT ID: NCT02190214 Completed - Hypothyroidism Clinical Trials

Thyroid Disorders in Malaysia: A Nationwide Multicentre Study

MyEndo-Thyroid
Start date: August 2014
Phase: N/A
Study type: Observational

This will be a population based study looking at the prevalence of thyroid disorders in Malaysia (including hypo- and hyperthyroidism, subclinical hypo- or hyperthyroidism) and its association with different ethnicity and iodine status. The study will also look at genetic susceptibility for autoimmune thyroid disorders in the Malaysian population General hypotheses: The prevalence of thyroid disorders in Malaysia is 10% for hypothyroidism and 2% for hyperthyroidism Hypo- and hyperthyroidism is associated with iodine status in our population There are different susceptibility gene for autoimmune thyroid disorder in different ethnicity in our population

NCT ID: NCT02094079 Completed - Hypothyroidism Clinical Trials

Monitoring and Evaluation of the Levothyroxin Replacement Therapy in Pregnant Women With Hypothyroidism

Start date: March 2014
Phase: N/A
Study type: Observational

The aim of the study was to evaluate the clinical control program in patients with hypothyroidism during pregnancy (suggested in resent guidelines). Is it possible by monitoring the patients every 4. week during pregnancy to keep the thyroid function parameters within the recommended range? A retrospective study of consecutive pregnant women with hypothyroidism followed at the outpatient clinic at the Endocrinology Unit, Herlev Hospital, Denmark during 2012. Patients selected through electronic medical system. Blood tests for the The hormone levels drawn from the laboratory of Clinical Biochemical Department, Herlev Hospital

NCT ID: NCT02090907 Completed - Clinical trials for Subclinical Hypothyroidism

Effects of Levothyroxine on Endothelial Function of Patients With Subclinical Hypothyroidism

Start date: May 2013
Phase: Phase 2/Phase 3
Study type: Interventional

Hypothyroidism is risk factor in atherosclerotic cardiovascular diseases, but there is a controversy in effect of subclinical hypothyroidism on cardiovascular diseases. We aim to estimate the relation between subclinical hypothyroidism and endothelial dysfunction and the effects of levothyroxine therapy on it. Patients with confirmed subclinical hypothyroidism by lab results will be randomized to two groups of treatment with one daily dose of 100 mg Levothyroxine or placebo. The flow-mediated dilation and intima media thickness are evaluated before and after the study.

NCT ID: NCT02061111 Completed - Clinical trials for Subclinical Hypothyroidism

NeoThyr - the Role of Mitochondria-dysfunction in Newborns of Mothers With Autoimmune Thyroid Disease

Start date: January 2014
Phase:
Study type: Observational

Previously, studies have shown that children of women with thyroid autoantibodies experience more birth complications and poorer health in their first days. Studies have also shown later signs of cognitive developmental challenges (risk of attention deficit/hyperactivity problems) among children of mothers with autoimmune thyroid disease and/or subclinical hypothyroidism. In Denmark there is no formalized screening or treatment of subclinical thyroid disease - with or without Thyroid Peroxidase Antibodies (TPO-antibodies) - among pregnant women. The hypothesis of this study is that the offspring of women with subclinical thyroid disease have a mitochondria-dysfunction which leads to more complications during birth, poorer health and well-being in the early childhood. The investigators will test this by recruiting mothers by a blood sample in the third trimester of pregnancy, screen the cord blood at birth and later on test the children with Bayley test two times in the early childhood.

NCT ID: NCT02005250 Completed - Hypothyroidism Clinical Trials

Bone Structure and Strength Evaluated by Extreme-CT Scan Before and After Treatment of Hyper- and Hypothyroidism

Start date: February 2012
Phase:
Study type: Observational

The aim to evaluate the bone structure by Dexa-scan, extreme CT and bone markers before and one year after treatment for a thyroid functional disorder

NCT ID: NCT01997554 Completed - Hypothyroidism Clinical Trials

Validation of a New TSH Test

Start date: March 2012
Phase: N/A
Study type: Interventional

The aim of this research project, which is realised with the partnership of the enterprise Siamed'Xpress (Marseille), is to validate a new TSH diagnostic test in vitro, to allow an earlier screening of hypothyroidism. A serum bank will be conserved in the "Centre de Biologie Sud" ("Groupement Hospitalier Lyon Sud"). The serum samples will be assayed locally for the usual medical support to patients and after they will be sent to Siamed'Xpress (Marseille), where they will be assayed with the new diagnostic test. The results obtained from the two techniques will be compared. The validation of this new TSH test represents a major advancement, since it could bring in the future to a therapeutic index which will allow clinicians to treat earlier asymptomatic patients with subclinical hypothyroidism.

NCT ID: NCT01985204 Completed - Iodine Deficiency Clinical Trials

Iodine Supplementation in Obesity

Start date: November 2013
Phase: N/A
Study type: Interventional

The study hypothesis is that iodine supplementation will lower serum TSH and leptin concentrations and thereby improve the lipid and glucose profile.

NCT ID: NCT01921452 Completed - Hypothyroidism Clinical Trials

Study to Verify Clinical Utility of Point-of-Care (POC) Thyroid Stimulating Hormone (TSH) Test Kits as Compared to Third Generation TSH Test Kit

Start date: October 2013
Phase: Phase 4
Study type: Interventional

This is a Phase 4, single-center, open-label, interventional study, wherein all enrolled subjects will be tested for Thyroid Stimulating Hormone (TSH) by using the quantitative and the qualitative Point-of-Care (POC) TSH test kits and the third generation TSH test kit at the same time.