View clinical trials related to Graves Ophthalmopathy.
Filter by:The study is aimed at assessing IGF-1R-Abs in patients with Graves' disease, with or without GO, compared with healthy subjects and patients with autoimmune thyroiditis in a cross-sectional investigation.
The overall objective is to evaluate the safety and efficacy of teprotumumab in the treatment of thyroid eye disease (TED) in participants who participated in the lead-in study HZNP-TEP-301 (NCT03298867; OPTIC) and who were either proptosis non-responders at Week 24 of HZNP-TEP-301 or were proptosis responders at Week 24 but met the criteria for re-treatment due to relapse during the Follow-Up Period of HZNP-TEP-301.
Graves' orbitopathy (GO) affects about 50% of patients with Graves' disease (GD), and some cannot be cured by current treatments. Orbital fibroblasts involves in the pathogenesis of GO by producing glycosaminoglycans and inflammatory cytokines. Since fibroblast growth factors (FGFs) binding to FGF receptors (FGFRs) can induce proliferation and differentiation of fibroblasts, investigators would like to measure the expression of FGFs and FGFRs in GO patients to see if inhibition of FGF-FGFR pathway has potential in treatment.
The overall objective is to investigate the efficacy, tolerability, and safety of teprotumumab (a fully human monoclonal antibody [mAb] inhibitor of the insulin-like growth factor-1 receptor [IGF-1R]) administered once every 3 weeks (q3W) for 21 weeks with a final assessment at Week 24, in comparison to placebo, in the treatment of participants with moderate-to-severe active thyroid eye disease (TED).
Randomized prospective clinical trial, aiming to compare two techniques of orbital decompression. Patients with Graves orbitopathy in the inactive phase for at least 6 months will be divided in two groups; one group will be submitted to orbital decompression by antro-ethmoidal technique; the other group will be submitted to orbital decompression by lateral wall technique. Patients will be followed up for a period of 6 months after the surgery, and will be evaluated about the effect of orbital decompression on ocular motility, proptosis, ocular surface and quality of life.
Graves orbitopathy (GO) is an inflammatory eye disease associated in 95% of patients with Graves' hyperthyroidism (GH), in ~3-4% with hypothyroid autoimmune thyroiditis, and in ~1-2% with thyroid autoimmunity in the absence of thyroid dysfunction, the former known as euthyroid GO. The pathogenesis of GO is autoimmune, with the TSH-receptor being considered the major autoantigen, thereby establishing a pathogenetic link between the thyroid and orbital tissue. Thus, TSH-receptor is expressed by orbital fibroblasts, where it forms a complex with the IGF-1 receptor. Unlike GH, which is notoriously caused by TSH-receptor stimulating autoantibodies, GO is believed to reflect cell-mediated autoimmunity, as suggested by studies showing a Th1-like pattern of cytokine release by primary cultures of orbital infiltrating lymphocytes from GO patients. On the other hand, a role of B lymphocytes has emerged in recent years based on the observation that the anti-CD20 monoclonal antibody rituximab has a beneficial effect on GO activity, as demonstrated by a recent randomized clinical trial in which rituximab was compared with intravenous glucocorticoids (GC), being the former the standard treatment of moderately-severe GO. The explanation for the findings was that B lymphocytes are involved in the pathogenesis of GO as antigen-presenting cells. However, in spite of the above mentioned promising observations, another randomized clinical trial in which rituximab was compared with placebo provided opposite results. Thus, rituximab had no effect at all on GO. Data from the two studies were confronted and major differences between the two cohorts emerged, especially concerning GO activity, leading to the conclusion that rituximab may be effective for active, but not for inactive GO. Rituximab has been employed also for autoimmune diseases other than GO, including type 1 diabetes. In the former, it was shown that the effectiveness of rituximab paralleled the presence of CD20-positive infiltrating lymphocytes in pancreas islets. We therefore postulated that something similar may occur in GO, because of which we planned the present, perspective, observational study, aimed at determining the presence and immunohistochemical features of lymphocytes infiltrating orbital tissues in patients with GO and to relate them with the clinical features of GO.
In an investigator initiated multicenter trial (Malmö, Odense, Århus) the investigators aim at evaluating activity of Graves´ophthalmopathy (GO) and progress to severe GO in patients with mild to moderate Graves´ ophthalmopathy treated with simvastatin or no treatment.
Continuous use of systemic glucocorticoids decreases bone mineral density and increases fracture risk. Graves' orbitopathy is treated with weekly infusion of high-dose intravenous glucocorticoid. The investigators aim at investigating whether this treatment regimen also affects bone metabolism.
Graves' orbitopathy (GO) is the most common extra-thyroidal manifestation of Graves' disease (GD), being observed in ~25% of patients. Besides genetic and demographical variables, risk factors associated with the development of GO in GD patients are known to be inadequate control of hyperthyroidism, radioiodine treatment, and smoking. In a large retrospective study conducted in more than 8,000 individuals with GD it was observed that treatment with 3-hydroxy-3-methylglutaryl-coenzyme reductase inhibitors, better known as statins, is associated with a ~40% reduced risk of developing GO in GD patients. The findings were interpreted as the consequence of the anti-inflammatory action of statins, being GO notoriously an autoimmune, inflammatory conditions. Statins are widely used for the treatment of hypercholesterolemia, for which they are quite effective. The possibility that their "protective" effect in terms of GO development in GD patients, as observed by Stein et al., was simply due to their hypolipemic actions was not considered. To evaluate the possibility that the findings reflected lowering of cholesterol rather than a direct anti-inflammatory effect of statins a prospective, observational study to assess the association between GO and high cholesterol levels and/or the relationship between the degree and/or activity of GO and hypercholesterolemia is ongoing. Preliminary findings suggest that GO is more severe and active in patients with high cholesterol levels. On the basis of these observations, the present randomized clinical trial was designed to be performed in hypercholesterolemic patients with GD and moderate-to-severe and active GO, aimed at investigating if lowering of cholesterol levels with statins is associated with a better outcome of GO.
For patients with active moderate-to-severe thyroid associated ophthalmopathy (TAO), the Intravenous Glucocorticoids (GCs) is the recommended therapy. However, the efficacy of GCs is not satisfied. Investigators established a novel classification of TAO for the first time to assess more precisely for better personal treatment.