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Hypothyroidism clinical trials

View clinical trials related to Hypothyroidism.

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NCT ID: NCT00505479 Recruiting - Pregnancy Clinical Trials

Iodine Status in Pregnant Women and Their Newborns: is Congenital Hypothyroidism Related to Iodine Deficiency in Pregnancy?

Start date: May 2007
Phase: N/A
Study type: Observational

Iodine is an essential component of thyroid hormone, which is necessary for many metabolic processes as well as the maturation of the CNS. Deficiencies of iodine have deleterious effects on both pregnant women and infants. The iodine status of the population after implementation of the universal salt iodization program in Zhejiang province has not been known. This study was to determine whether pregnant women show evidence of iodine deficiency, and to examine the correlation between maternal urine iodine concentration and newborn thyroid function.

NCT ID: NCT00498238 Completed - Clinical trials for Subclinical Hypothyroidism

The Effect of Levothyroxine on Arterial Stiffness and Lipid Profile in Patients With Subclinical Hypothyroidism

Start date: July 2003
Phase: N/A
Study type: Interventional

We evaluated the effect of levothyroxine in subclinical hypothyroidism (SCH) on arterial stiffness, lipid profile and inflammation. Thirty-four patients with SCH were included. Patients were treated with levothyroxine for 7 months. Arterial stiffness was evaluated by Augmentation index (AIx). After accomplishing euthyroidism, the AIx decreased from 8.3±17.2 to 6.5±14.3(P<0.01) and AIx percentage decreased from36.2 11.5 ± to 9.1±33.2 (P =0.03). Systolic blood pressure decreased from 20±134.7 to mmHg 13.7±127.6 (P<0.01). No significant improvement was found in other parameters. In patients whose AIx's decreased, LDL-cholesterol levels decreased by 37.1±-15.5 mg/dl compared to the patients whose AIx's didn't decrease and LDL-cholesterol increased by 57.4±24.1 mg/dl (P=0.057). We concluded that in patients suffering from SCH, treatment with levothyroxine had a significant beneficial effect on arterial stiffness and systolic blood pressure and no effect on lipid profile or inflammation.

NCT ID: NCT00497575 Completed - Clinical trials for Congenital Hypothyroidism

Diagnosis and Follow-up of Patients With Subclinical Hypothyroidism

CHRO1
Start date: October 1999
Phase: N/A
Study type: Observational

Long term follow-up of the patients with delayed TSH elevation or subclinical hypothyroidism has been seldom reported. The purpose of this study was to explore the diagnostic criteria for subclinical hypothyroidism and the initial dosage of L-thyroxine through long-term follow up for infants with subclinical hypothyroidism ,and evaluate the curative effect.

NCT ID: NCT00493103 Completed - Clinical trials for Congenital Hypothyroidism

TG Gene Mutations and Congenital Hypothyroidism

Start date: July 2003
Phase: N/A
Study type: Observational

The aim of this study was to identify mutations in the thyroglobulin gene that might be present in patients with fetal goiter and congenital goiter hypothyroidism.

NCT ID: NCT00488644 Terminated - Brain Tumor Clinical Trials

Combined Levothyroxine/Liothyronine Supplementation in Hypothyroid Patients With Brain Tumors

Start date: February 2006
Phase: N/A
Study type: Interventional

Primary Objectives: 1. Assess whether combined treatment with Levothyroxine and Liothyronine improves learning and memory. 2. Explore the relationship between T3 treatment and other domains of cognitive function, quality of life, and mood.

NCT ID: NCT00437931 Completed - Hyperthyroidism Clinical Trials

Color Flow Doppler Ultrasound in Subclinical Thyroid Dysfunction

Start date: February 2007
Phase: N/A
Study type: Observational

Overt hyperthyroidism and hypothyroidism are associated with inverted hemodynamic changes.Regional blood flow disturbances (including intrathyroidal) were also reported in these thyroid disorders. The purpose of this study is to investigate the thyroid vascularity and blood flow by Color Flow Doppler Sonography in patients with subclinical thyroid dysfunction

NCT ID: NCT00403390 Completed - Hypothyroidism Clinical Trials

Generic vs. Name-Brand Levothyroxine

Start date: November 2006
Phase: N/A
Study type: Interventional

This study compares two different brands of thyroxine (thyroid hormone). Currently, pharmacists may be substituting generic formulations of thyroid hormone without your doctor knowing about this. Although a small difference in thyroid function is not significant in most healthy children, adolescents and adults, in infants and toddlers even a small difference in thyroid function can have important harmful consequences on brain development. The purpose of the present study is to learn whether the difference between brands of thyroid hormone that are currently being substituted is sufficient to cause a difference in thyroid function.

NCT ID: NCT00388297 Completed - Pregnancy Clinical Trials

Thyroid Therapy for Mild Thyroid Deficiency in Pregnancy

TSH
Start date: October 2006
Phase: Phase 3
Study type: Interventional

The purpose of this study is to determine whether treating women, who are diagnosed with a mild imbalance of thyroid hormones during pregnancy, with thyroid hormone replacement affects their children's intellectual development at 5 years of age.

NCT ID: NCT00360074 Completed - Hyperlipidemias Clinical Trials

Phase 4 Study in Secondary Hypothyroidism: Body Weight Adapted Thyroxin Treatment and Triiodothyronine Supplementation

Start date: February 2004
Phase: Phase 4
Study type: Interventional

The purpose of this study is to determine whether a body weight adjusted dose of thyroxin is superior to treatment guided by laboratory results of thyroxin hormones in patients with central hypothyroidism. Moreover beneficial effects of triiodthyronine supplementation are investigated.

NCT ID: NCT00336102 Completed - Breast Cancer Clinical Trials

Thyroid Dysfunction in Women With Newly Diagnosed Breast Cancer Compared to Healthy Volunteers

Start date: April 2006
Phase: N/A
Study type: Observational

RATIONALE: Learning about thyroid dysfunction in patients with breast cancer may help plan treatment and may help patients live more comfortably. PURPOSE: This clinical trial is studying how often thyroid dysfunction happens in women with newly diagnosed stage I, stage II, or stage III breast cancer who are planning to undergo chemotherapy compared to how often it happens in healthy volunteers.