View clinical trials related to Thyroid Diseases.
Filter by:Main goal of this clinical investigation is to investigate different cytokines in wound fluids of euthyroid vs. hypothyroid patients. As a primary endpoint we want to evaluate if different cytokine levels in euthyroid vs. hypothyroid patients exist and to what extent these cytokines differ. Our targeted cytokines are: IL6, IL10, TNFa and MCP-1. From the literature these 4 factors seem to be the most reasonable to measure and to focus on. Additionally we focus on these 4 factors for financial reasons, technically there wouldn't be a problem to measure more, which is correlated with higher costs. Besides, more than 6 factors would mean larger amounts of sample fluids needed, which would cause technical problems. These factors don`t have to change in the same direction. Secondarily, we believe that differences in cytokine profiles of hypothyroidism vs. euthyroidism will correlate to differences in duration and clinical characteristics of the wound healing process.
This research study is to compare the radiopharmacokinetics of I-124 to the radiopharmacokinetics of I-131 in patients who have well-differentiated thyroid cancer after recombinant human thyroid-stimulating hormone (rhTSH) injection. I-131 is routinely used for imaging and dosimetry for patients with well-differentiated thyroid cancer. In this study, I-124 is administered orally in capsular form, and the radiopharmacokinetics of I-124 is compared with I-131. I-124 is another isotope of iodine, which is cyclotron-produced. I-124 has multiple advantages: - Ideal Half-Life (4.2 days) for delayed imaging. - High resolution tomographic imaging. - Feasibility of quantitating lesion uptake. - Potential of dosimetry for the planning of radioiodine therapy. Voluntary patients will have I-124 dosimetry performed in addition to the I-131 dosimetry, which is planned as part of routine clinical care. I-124 dosimetry is composed of four parts: (1) two extra doses of injections of rhTSH, (2) the administration of I-124, (3) PET imaging, and (4) drawing blood samples. Patients will receive two additional injections of rhTSH. This is similar to the procedure for I-131 dosimetry. Second, they will receive I-124. I-124 is similar to I-131 except I-124 decays in a different way to emit a positron so that the PET scanner can be used for imaging. I-124 is given in the form of one or several capsules, which are taken by mouth. This is also similar to I-131. Third, PET/CT imaging is done for approximately 30 minutes to one hour on five consecutive days. Radiation from PET/CT scan is far less than what they receive from a diagnostic CT scan. For the fourth part, a technologist will draw about 5 cc from the forearm on each of the five consecutive days. This is also similar to I-131. Initially, all patients will be randomized to one of two study groups. The first group will have the I-131 dosimetry performed first followed by the I-124 dosimetry, and the second group will have the I-124 dosimetry performed first followed by the I-131 dosimetry. The risk of this study is considered very low, and the potential benefits to the patient are considered very high.
Background: - The combination of anti-cancer drugs vandetanib (given orally) and bortezomib (given intravenously) has not been used in humans. However, both drugs have been studied separately. Bortezomib has been approved by the U.S. Food and Drug Administration (FDA) for treating multiple myeloma and mantle cell lymphoma, while vandetanib is still under investigation pending FDA approval. - Both bortezomib and vandetanib are under investigation for use in treating certain kinds of cancer. Researchers hope that the combination of these two drugs will be more effective than either of them alone. Objectives: - To determine if the combination of vandetanib and bortezomib will decrease the amount of the cancer and, if it does, to determine how long the response will last. - To determine any side effects that may occur with this combination of treatments. - To determine what doses of each drug are well tolerated and safe when given together. - To study genetic mutations in tumors to better understand how tumors grow and how these drugs interact with the tumor. Eligibility: - Patients 18 years of age and older with solid tumors that cannot be surgically removed and have either recurred or shown further growth. The tumor(s) must be able to be evaluated by X-ray, MRI (magnetic resonance imaging), and CT (computerized tomography) scanning. - Patients who have been diagnosed with medullary thyroid cancer will participate in Phase II of the study. Design: - Tumor samples may be taken at the start of the study for research purposes. - Phase I: Patient groups will be treated on an outpatient basis with vandetanib and bortezomib, given at increasing doses over four different levels to determine the maximum tolerated dose calculated by height and weight: - Doses will be given on Days 1, 4, 8, and 11 for each 28-day cycle. - Two additional levels (Level 1A and Level 1B) may be included in the study, depending on side effects at various levels. - Phase II: Patients with medullary thyroid cancer will be divided into two groups, with two patients in Group A for every one patient in Group B. No placebo will be involved in this study. - Group A: Patients will be treated with vandetanib and bortezomib at the maximally tolerated dose of the Phase I study. - Group B: Patients will be treated with bortezomib alone. - A second tumor sample may be taken. In patients with thyroid cancer, the second biopsy will be done at the 6-week evaluation (approximately 42 days after beginning). In patients with cancer other than thyroid cancer, the second biopsy will be obtained on Day 4 of either the first or second cycle, after the bortezomib infusion. - The effects of the drugs will be studied through blood samples and CT scans taken during and after various drug cycles.
This is multicenter, open-label, randomized, active-controled, phase IV study of local direct intra-tumor injection of rAd-p53 monotherapy, with concurrent radioactive iodine , or combination with surgery for treatment of advanced malignant thyroid tumors.
The purpose of this study is to assess whether therapy with Sorafenib reinduces radioiodine uptake in thyroid carcinoma.
The aim is to evaluate the effect of dramatic weight loss after bariatric surgery on thyroid function (thyroid hormone levels and particulary morphological changes) in the short and long-term setting of a cross-sectional study. A particular focus will be made with regard to putting into correlation preoperative thyroid function abnormalities and postoperative changes over time with respect to the type of bariatric intervention carried out.
Thyroid nodule pathologies occur frequently and represent a clinical issue for the endocrinologists, surgeons, nuclear physicians as well as the general practitioners. The incidence of this pathology has been further highlighted by the introduction of the ultrasound examination into the clinical practice as 20% with impalpable thyroid nodules is now detected through ultrasound. The majority of nodules are benign and characterized by slow growth, and therefore treated with suppressive doses of levothyroxine. Long-term levothyroxine treatment has, however, several well-known side effects and limitations. During the last years, number of controlled studies have demonstrated that ultrasound guided percutaneous laser treatment (PLA) is able to reach the target lesion within the thyroid with a high level of precision, and to destroy the thyroid tissue in a predictable and repeatable fashion, without side effects. Aim of the study: 1. to assess 1-year and 3-year effect of laser ablation therapy on the volume of benign thyroid nodules and on nodule-related symptoms, and to compare these effects with findings in control group without active therapy; 2. to assess the eventual re-occurence of thyroid lesions (observed after other types of ablation treatment, like percutaneous ethanol injection) during a 3-year follow-up; 3. to demonstrate reproducibility of results within different environments and under different operators; 4. to validate eventual presence of major or minor side effects. To this aim we shall randomized 200 patients either for PLA (100 pts) or standard follow-up. Patients will be recruited, treated and followed in 4 italian centers (Ospedale Regina Apostolorum - Roma, Arcispedale S. Maria Nuova - Reggio Emilia, Ospedale S. Maria della Misericordia - Perugia, Ospedale di Cisanello - Pisa) by physicians with experience in PLA.The scientific coordinator of this multicentre study is dr. Claudio Maurizio Pacella.
The purpose of this study is to determine whether treatment of thyroid disease during pregnancy decrease the incidence of adverse outcome, and to compare the impact of Universal Screening versus case Finding strategy in detecting thyroid dysfunction
Because of the high iodine uptake in the stomach, radioactive iodine treatment for thyroid diseases (cancer or hyperthyroidism) or radioactive iodine administered for thyroid scan may be able to eradicate H.pylori infection from the stomach of patients infected with H.pylori. Also to test the hypothesis that CagA virulent strains of H.pylori are more common in patients with thyroid cancer than with other thyroid diseases.
This study intends to examine how a common genetic pattern affects thyroid function. Recent studies have demonstrated that a substance (enzyme) produced by a gene has an important role in controlling circulating thyroid hormone levels. A commonly found pattern in this gene exists in many individuals and might affect the function of the enzyme. These individuals need higher doses of thyroid hormone medication in certain situations (e.g. in the treatment of thyroid cancer after the thyroid gland has been removed) than those individuals without the variation. We intend to study this by looking at the response to a hormone-test in healthy volunteers with different genetic patterns. We plan to screen healthy volunteers using a blood test to identify their genetic pattern relating to the enzyme we are interested in. From this group, forty-five healthy volunteers will be recruited for the hormone-test. This test (called the TRH test) uses a hormone produced by the brain and stimulates the pituitary and thyroid gland. The response to this test will allow us to compare the function of the thyroid system in relation to the genetic pattern of the volunteer. We hypothesize that the stimulation of the thyroid hormone system will be decreased in volunteers with a specific genetic pattern and that these individuals will release less active thyroid hormone from the thyroid gland in response to the TRH test. This study will provide new information on the effect of a common genetic pattern on thyroid hormone function and will help us to better understand the way in which the thyroid hormone system operates. Ultimately, the results of this study might help to provide a more individualized therapy for patients in need of thyroid hormone replacement.