Searchable abstracts of presentations at key conferences in endocrinology
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45th Annual Meeting of the European Thyroid Association (ETA) 2023

ea0092op-09-01 | Oral Session 9: Thyroid Eye Disease | ETA2023

VRDN-001, a full antagonist antibody to IGF-1 receptor: in vitro pharmacology and phase 1/2 results in patients with thyroid eye disease (TED)

Douglas Raymond , Ugradar Shoaib , Turbin Roger , Cockerham Kimberly , Tang Rosa , Nijhawan Navdeep , Kossler Andrea , Boisvert Chantal , Lee Wendy , Yen Michael , Kaufman David , Yoon Michael , Bedian Vahe , Katz Barrett

Objectives: Antagonism of the IGF-1 receptor (IGF-1R) has been shown to reduce TED-related inflammation and proptosis. VRDN-001, a high-affinity antagonist antibody to IGF-1R, has distinct pharmacological properties that may enable differentiated dosing and better efficacy than observed with other antibodies. We assessed VRDN-001 in vitro pharmacology compared with teprotumumab and clinical proof of concept in a phase 1/2 randomized controlled trial (NCT05176639)....

ea0092op-09-02 | Oral Session 9: Thyroid Eye Disease | ETA2023

Preclinical pharmacokinetics and clinical exposure prediction for VRDN-003, a next-generation half-life extended antibody to the IGF-1 receptor for thyroid eye disease

Foster Kelly , Dickinson Brent , Bedian Vahe

Objective: Evidence shows that IGF-1 receptor (IGF-1R) antagonism reduces the inflammation and proptosis that occur in thyroid eye disease (TED). VRDN-001 is a full antagonist to IGF-1R, and VRDN-003 is a next-generation, half-life extended version of VRDN-001 designed to enable subcutaneous (SC) administration. We compared the in vivo pharmacokinetic (PK) parameters of VRDN-001 and VRDN-003 and used a PK model to simulate potential VRDN-003 SC dosing regimens.<p ...

ea0092op-09-03 | Oral Session 9: Thyroid Eye Disease | ETA2023

Linsitinib, AN IGF-1R inhibitor, attenuates disease development and progression in a model of thyroid eye disease

Gulbins Anne , Horstmann Mareike , Daser Anke , Flogel Ulrich , Oeverhaus Michael , Bechrakis Nikolaos , Paul Banga J , Keitsch Simone , Wilker Barbara , Krause Gerd , Hammer Gary , Spencer Andy , Zeidan Ryan , Eckstein Anja , Philipp Svenja , Gortz Gina-Eva

Study objective: We investigated the effect of linsitinib, a dual small-molecule kinase inhibitor of the insulin-like growth factor 1 receptor (IGF-1R) and the Insulin receptor (IR), on Graves’ Disease and thyroid eye disease. Graves‘ disease (GD), also known as ‘Basedow’s disease‘, is the most common cause for hyperthyroidism, typically presenting in patients between 40-60 years. GD is an autoimmune condition of the thyroid which is caused by autoanti...

ea0092op-09-04 | Oral Session 9: Thyroid Eye Disease | ETA2023

Novel, rapid, sensitive bioassay for thyrotropin receptor stimulatory antibodies- a multicenter, single blind study

Kahaly George , Bossowski Artur , Frommer Lara , Hatun Burak , Wolf Jan , Lupo Mark

Background: Autoantibody mimicry of hormone action at the thyrotropin receptor (TSH-R) and aberrant signaling of TSH-R by autoantibodies (TSH-R-Ab) causes autoimmune thyroid disease (AITD), hyperthyroidism and hypothyroidism, both of which affect millions of patients worldwide. In this multicenter, single blind study, the specificity, sensitivity and performance of a novel bioassay for stimulatory TSH-R-Ab were tested.Methods: TSH-R-Ab were measured in a...

ea0092op-09-05 | Oral Session 9: Thyroid Eye Disease | ETA2023

Clinical and visual outcomes of dysthyroid optic neuropathy after surgical orbital decompression

Armenti Mirco , Curro Nicola , Guastella Claudio , Bottari De Castello Alessandra , Chiara Fazio Maria , Contarino Andrea , Rossi Giada , Muller Ilaria , Arosio Maura , Viola Francesco , Pignataro Lorenzo , Salvi Mario

Objectives: Dysthyroid Optic Neuropathy (DON) is a severe complication of Graves’ Orbitopathy (GO), requiring prompt treatment. First line treatment is high dose intravenous steroids, then surgery is considered mandatory. We studied the clinical outcomes of surgery for DON, with and without previous therapy with steroids.Methods: 88 orbits of 56 patients with DON were treated with surgical orbital decompression. 33 orbits (37.5 %) underwent surgery ...