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Abstract: AbstractContextThyroid eye disease (TED), a vision-threatening and disfiguring autoimmune process, has thwarted our efforts to understand its pathogenesis and develop effective and safe treatments. Recent scientific advances have facilitated improved treatment options.ObjectiveReview historically remote and recent advances in understanding TED.Design/Setting/ParticipantsPubMed was scanned using search terms including thyroid-associated ophthalmopathy, thyroid eye disease, Graves’ orbitopathy, autoimmune thyroid disease, and orbital inflammation.Main outcome measuresStrength of scientific evidence, size, scope, and controls of clinical trials/observations.ResultsGlucocorticoid steroids are widely prescribed systemic medical therapy. They can lessen inflammation-related manifestations of TED but fail to reliably reduce proptosis and diplopia, 2 major causes of morbidity. Other current therapies include mycophenolate, rituximab (anti-CD20 B cell-depleting monoclonal antibody), tocilizumab (interleukin-6 receptor antagonist), and teprotumumab (IGF-I receptor inhibitor). Several new therapeutic approaches have been proposed including targeting prostaglandin receptors, vascular endothelial growth factor, mTOR, and cholesterol pathways. Of potentially greater long-term importance are attempts to restore immune tolerance.ConclusionDespite their current wide use, steroids may no longer enjoy first-tier status for TED as more effective and better tolerated medical options become available. Multiple current and emerging therapies, the rationales for which are rooted in theoretical and experimental science, promise better options. These include teprotumumab, rituximab, and tocilizumab. Restoration of immune tolerance could ultimately become the most effective and safe medical management for TED. PubDate: Mon, 08 Aug 2022 00:00:00 GMT DOI: 10.1210/clinem/dgac328 Issue No:Vol. 107, No. Supplement_1 (2022)
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Abstract: AbstractContextThyroid eye disease (TED) is a sight-threatening and debilitating autoimmune condition, with limited therapies available, that often poses diagnostic and therapeutic challenges. In recent years, the treatment landscape has shifted to early intervention with targeted therapy.MethodsA PubMed review of the literature was conducted for the period between 1979 and 2021. Search terms included thyroid eye disease, teprotumumab, targeted therapy, Graves disease, Graves ophthalmopathy, dysthyroid optic neuropathy, and related terms in different combinations. Novel biologic therapies for TED have emerged as alternatives to traditional steroid regimens in recent years. New insights into TED pathophysiology have uncovered the role of the insulin-like growth factor 1 receptor (IGF-1R) and led to the development of teprotumumab, an IGF-1R–inhibiting monoclonal antibody.ResultsRandomized clinical trials demonstrating the efficacy of teprotumumab for TED led to Food and Drug Administration approval. Teprotumumab is gradually replacing immunosuppressive agents as first-line therapy in the United States for active moderate-to-severe TED, while emerging reports also show its use in other stages of the disease. Recent data highlight risk factors for adverse events and screening protocols to maximize patient safety. Personalized therapeutic plans developed through effective partnership between endocrinologists and ophthalmologists aim to enhance the safety and outcomes of TED treatments and improve care for this complex disease.ConclusionTED management is shifting to an era of targeted therapy with multidisciplinary care. Teprotumumab has demonstrated superior efficacy to conventional treatments and has transformed our therapeutic and surgical algorithms. Clinical guidelines and additional studies are needed to further guide and refine therapy. PubDate: Mon, 08 Aug 2022 00:00:00 GMT DOI: 10.1210/clinem/dgac168 Issue No:Vol. 107, No. Supplement_1 (2022)
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Abstract: AbstractBackground and AimsThis review aims to summarize current and emerging therapies for treatment of thyroid eye disease (TED), in the light of novel understanding of pathogenetic mechanisms, leading to new treatment options and clinical trials.MethodsWe reviewed and analyzed peer-reviewed literature reporting recent translational studies and clinical trials in the treatment of TED. Searches were made at www.pubmed.gov with keywords “thyroid eye disease,” “Graves’ ophthalmopathy,” “thyroid orbitopathy,” and “Graves’ orbitopathy.”ResultsSurgery is reserved for rehabilitation in chronic TED or for emergent compressive optic neuropathy. Oral and intravenous glucocorticoid therapy has been used for decades with variable efficacy in acute TED, but results may be temporary and side effects significant. Nonsteroidal oral immunosuppressive agents offer modest benefit in TED. Several immunomodulatory monoclonal antibodies, including rituximab and tocilizumab, have shown efficacy for inactivating TED. Recently, teprotumumab, an insulin-like growth factor 1 receptor (IGF-1R) inhibitor, has demonstrated significant improvement in proptosis, clinical activity score, diplopia, and quality of life in patients with active TED, with good tolerability. Newly proposed TED therapies, currently in preclinical and clinical trial phases, include thyroid-stimulating hormone (TSH) receptor inhibitory drugs, RVT-1401, local anti-vascular endothelial growth factor therapy, IGF-1R drugs delivered subcutaneously and orally, and desensitization to the TSH receptor with modified TSH receptor peptides.ConclusionNew, albeit incomplete, understanding of the molecular mechanisms of TED has led to new promising therapies and offered improved outcomes in TED patients. Their full role and their relationship to classical immune suppression should be clarified over the next few years. PubDate: Mon, 08 Aug 2022 00:00:00 GMT DOI: 10.1210/clinem/dgac252 Issue No:Vol. 107, No. Supplement_1 (2022)
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Abstract: AbstractHealth-related quality of life (HQOL) is a concept that aims to understand the totality of an individual’s experience of their disease state. This can include the physical, psychosocial, emotional, and psychological effects of a disease state. A complex and multifactorial concept, HQOL can be challenging to measure accurately and reliably. Thyroid eye disease (TED), as a multifaceted physically debilitating and facial disfiguring disorder, presents unique challenges and opportunities in the measurement of HQOL. Multiple distinct tools have been developed for this purpose, each has been constructed, assessed, and utilized. This discussion surveys the landscape of TED-related QOL measurement and presents challenges for the future. Clinicians and clinical researchers should implement TED-related QOL measurement as part of routine TED care and as a primary outcome in TED clinical trials. We recommend utilizing the Graves’ ophthalmopathy (GO)-QOL routinely in clinical practice and as a primary outcome in TED clinical trials. If the GO-QOL is too time-consuming or in mild TED, a faster alternative is the TED-QOL. PubDate: Mon, 08 Aug 2022 00:00:00 GMT DOI: 10.1210/clinem/dgac230 Issue No:Vol. 107, No. Supplement_1 (2022)
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Abstract: AbstractContextThyroid eye disease (TED) is a complex autoimmune disease process. Orbital fibroblasts represent the central orbital immune target. Involvement of the TSH receptor (TSHR) in TED is not fully understood. IGF-I receptor (IGF-IR) is overexpressed in several cell types in TED, including fibrocytes and orbital fibroblasts. IGF-IR may form a physical and functional complex with TSHR. ObjectiveReview literature relevant to autoantibody generation in TED and whether these induce orbital fibroblast responses directly through TSHR, IGF-IR, or both. EvidenceIGF-IR has traditionally been considered a typical tyrosine kinase receptor in which tyrosine residues become phosphorylated following IGF-I binding. Evidence has emerged that IGF-IR possesses kinase-independent activities and can be considered a functional receptor tyrosine kinase/G-protein-coupled receptor hybrid, using the G-protein receptor kinase/β-arrestin system. Teprotumumab, a monoclonal IGF-IR antibody, effectively reduces TED disease activity, proptosis, and diplopia. In addition, the drug attenuates in vitro actions of both IGF-I and TSH in fibrocytes and orbital fibroblasts, including induction of proinflammatory cytokines by TSH and TED IgGs.ConclusionsAlthough teprotumumab has been proven effective and relatively safe in the treatment of TED, many questions remain pertaining to IGF-IR, its relationship with TSHR, and how the drug might be disrupting these receptor protein/protein interactions. Here, we propose 4 possible IGF-IR activation models that could underlie clinical responses to teprotumumab observed in patients with TED. Teprotumumab is associated with several adverse events, including hyperglycemia and hearing abnormalities. Underpinning mechanisms of these are being investigated. Patients undergoing treatment with drug must be monitored for these and managed with best medical practices. PubDate: Tue, 15 Feb 2022 00:00:00 GMT DOI: 10.1210/clinem/dgac045 Issue No:Vol. 107, No. Supplement_1 (2022)
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