Active clinical trials for "Thyroiditis"

To investigate whether the supplementation of organic selenium at the "adult" dose (200 mcg per day in the form of L-selenomethionine) has a favorable impact on thyroid function, including the titer of anti-thyroid antibodies [Anti-thyroid peroxidase (anti-TPO) and Anti-thyroglobulin (anti-Tg) antibodies], in children and adolescents with autoimmune thyroiditis (AT).

Selenium suppresses autoimmune destruction of thyrocytes and decreases titers of serum TPOAb in AIT patients. Older 4 clinical trials approved the efficacy of the daily dose of 200micg. It's believed that Se saturates the deficient stores of GPX so GPX saves the thyrocytes against to oxidative stresses. Although less than 70 micg/d is sufficient to maximize GPX activity, none of the authors tested the doses less than 200 micg/d. Our hypothesis was that If 100 micg/d can not suppress the TPOAb titers,it means autoimmune destruction can not be blocked by saturation of deficient stores of GPX solely and the mechanism of action requires more than repletion of deficient stores. It's important not only to estimate the optimal dose but to understand the mechanism of action. High dose therapy may also suppress TPOAb levels in Se-non-deficient AIT patients, if it is so, Se therapy may becomes the solely treatment modality which can suppress the autoimmunity in more than 400 million AIT patients. Because there've been no way to suppress autoimmune war and replacement of LT4 had been the only treatment modality for palliation. An other independent part of the study is to test the effect of Se in adolescent AIT patients.

INTRODUCTION: Chronic autoimmune thyroiditis (TCA) is the main cause of acquired hypothyroidism, which requires continuous treatment with levothyroxine (LT4). A randomized, placebo-controlled trial including 43 patients with hypothyroidism caused by TCA without nodules on ultrasonography study (US) was conducted from March 2006 to March 2009 (NCT01129492). Among them, 23 were submitted to low-level laser therapy (LLLT) and 20 to placebo. The LLLT was effective in improving the echogenicity, the volume and of the thyroid vascularization pattern by US. There was also improvement in the thyroid function and reduction of serum thyroid peroxidase antibodies (TPOAb). Although the results have shown promising and LLLT has shown to be safe in many study models, the long-term LLLT actions on the thyroid parenchyma are unknown. Thus, the objective of this study is to perform biochemical tests and thyroid US six years after the clinical trial interventions to evaluate levothyroxine dose, serum levels of autoantibodies and, especially, the frequency and nature of nodules in the gland and then compare these variables between LLLT and placebo groups. METHODS: This study will include the trial participants performed six years before. The levothyroxine dose and serum levels of thyrotropin (TSH), T3, T4, free T4, TPOAb and anti-thyroglobulin antibodies (TgAb) will be evaluated in these patients. The thyroid US will assess the texture (with particular attention to identifying nodules), echogenicity, volume, as well as vascularization of the gland. The US nodules features, such as dimensions, shape, margins, extracapsular invasion, echogenicity, texture, hypoechoic halo, calcification, internal content, vascularization pattern and resistivity index will be searched. Regional lymph nodes and other characteristics will be also investigated. The USs will be carried out by only one examiner who will be blinded for the previously performed intervention (LILT or placebo). The same investigator will execute a fine needle aspiration (FNA) of patients with thyroid nodules. The cytological analysis of the material collected from the nodules will be undertaken by a pathologist who will be also blinded for the treatment assignments. RESULTS: The following variables will be compared between the two groups: levothyroxine doses, antithyroid antibodies, US parameters, thyroid nodules (if detected) and in this case, the result of their respective FNA.

This is a study to evaluate the safety, tolerability, and potential effects of Anatabloc dietary supplementation on antithyroid autoantibodies, thyroid structure, and thyroid function in subjects with autoimmune thyroiditis.

Efficiency and Safety Study of Short-term Prednisone to Treat Moderate and Severe Subacute Thyroiditis The investigators hypothesize that less adverse reactions will be observed, comparing with the guidelines recommend. The recurrence rate, adrenal insufficiency, temporary and permanent hypothyroidism aren't significant difference.

Hashimoto's thyroiditis (HT) is the most commonly observed inflammatory and autoimmune disease of the thyroid gland. Many genetic and environmental factors play a role in the pathogenesis of the disease, including iodine exposure, drugs, chemicals, toxins, infections and smoking. In recent years, the relationship between oxidative stress level and thyroid autoantibodies in HT has attracted increasing attention of researchers. In the studies, it has been reported that oxidative stress levels may increase due to chronic inflammation, insufficient thyroid hormone levels, excessive autoimmune response and excessive iodine intake. Data from clinical studies clearly show that the balance between oxidants and antioxidants shifts towards the oxidative side in patients with autoimmune thyroiditis, suggesting that oxidative stress may be a key event in the pathophysiology of the disease, independent of thyroid function. Recent evidence has suggested that low-level laser therapy (LLLT) can improve thyroid function and reduce levels of thyroid peroxidase antibodies (TPOAb) in patients with hypothyroidism caused by chronic autoimmune thyroiditis. In the literature, data examining the effects of LLLT on oxidative stress level and quality of life in patients with HT is limited. As far as we know, it will be the first study examining the effect of LLLT on oxidative stress, fatigue and quality of life in cases diagnosed with HT. The aim of the study is to examine the effects of LT4 treatment combined with LLLT on thyroid autoimmunity, oxidative stress, fatigue and quality of life in patients with Hashimoto's diagnosis.

The aim of the work is to determine whether the use of immunomodulatory drugs could improve the reproductive of outcome of infertile patients who have autoimmune thyroiditis with positive autoimmune antibodies undergoing IVF-ET.

This study is expected to provide novel data regarding potential structural and functional changes of the thyroid gland in morbidly obese adults following significant weight loss through bariatric surgery. These data will complement evidence from epidemiological studies regarding the association of obesity and alterations in thyroid function. Potentially this study may justify further longer-term studies regarding the effects of weight gain and/or weight loss on the morphology of the thyroid gland and could help to form recommendations regarding follow-up investigations for the thyroid in morbidly obese patients.

Serum levels of isolated anti-thyroperoxidase (TPOab) and anti-thyreoglobulin (Tgab) autoantibodies are strongly associated with an increased risk of miscarriage and premature deliveries in euthyroid pregnant women. Replacement of thyroxine (LT4) or other supplementations in euthyroid-Ab positivity during pregnancy has not been established. The development of a safe and effective intervention that modulates inappropriate inflammatory responses could be a very important component of prevention against adverse health outcomes during pregnancy. The anti-oxidant Selenium (Se) suppresses autoimmune destruction of thyrocytes and at daily dose of 200 mcg and 100 mcg decreases titers of serum TPOAb and TgAb also in Se-non-deficient patients with autoimmune thyroiditis (AIT). The use of Se in AIT has been shown to reduce the incidence of postpartum thyroiditis and hypothyroidism. Women with recurrent pregnancy loss had lower Se levels and Se deficiency has been implicated in the pathogenesis of AIT and in the impairment of T/B cell-mediated immunity. The purpose of the present study is performed to establish the effect of Se supplementation in euthyroid women with AIT (pregnant and in whom embryo transfer is expected within 60 days) on Ab trend, thyroid function and structure, implantation rates, pregnancy rates, pregnancy outcome and number of obstetrical, fetal and neonatal complications.

The purpose of this study is to evaluate whether Eye Movement Desensitization and Reprocessing (EMDR) is effective in decreasing the level of autoantibodies of patients with autoimmune thyroiditis. The investigators hypothesize that processing traumatic memories from events that happened before the illness onset will have a positive impact first on the psyche (a) by decreasing the level of dissociation, alexithymia, anger, and (b) by increasing the quality of life and emotional regulation, than those in the control group. Secondly, it will have an impact on the biological level, by decreasing the level of autoantibodies, antithyroglobulin antibody (anti-Tg) and anti-thyroid peroxidase antibody (anti-TPO), which are the main antibodies detected in chronic autoimmune thyroiditis.