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Background: Teprotumumab, a novel IGF-1R antibody, has been shown to significantly reduce the signs of acute and chronic Thyroid Eye Disease (TED). Light sensitivity is a reported symptom in patients with TED. There is a lack of a prospective study that has explored the effects on light sensitivity in a large cohort of patients with acute and chronic TED following treatment with teprotumumab. Methods: Consecutive patients who were diagnosed with TED and reported light sensitivity at baseline were considered for study eligibility. All patients had measurements of Visual Light Sensitivity Questionnaire-8 (VLSQ-8), proptosis, clinical activity score (CAS), and MRD1 (distance between the upper eyelid margin and corneal reflex, mm) and MRD2 (distance between the lower eyelid margin and corneal reflex, mm) before and after treatment. Results: Ninety patients (41 acute, 49 chronic) met the inclusion criteria. The mean (SD) age was 47.3 (14.3). Eighty-six (95.6%) patients completed all 8 infusions. There was a significant reduction in the total score and across all categories of the VLSQ-8 (p < 0.01 for all). Seventy-two (80%) patients had a clinically significant improvement (≥2 reduction) in at least one category. There was no significant difference in the total VLSQ-8 score between the acute and chronic group (p = 0.8). Conclusion: Teprotumumab improves light sensitivity in patients with acute and chronic TED. The results of this study highlight that the improvements in light sensitivity following treatment are not directly related to the mechanical changes in TED, suggesting another underlying mechanism is potentially involved. [ABSTRACT FROM AUTHOR]

Background: Teprotumumab, a novel IGF-1R antibody was recently shown to significantly reduce the signs of acute and chronic thyroid eye disease (TED) related to hyperthyroidism. Given the lower incidence of TED associated with hypothyroidism / euthyroidism, there is a paucity of data regarding the efficacy of teprotumumab in this group.In this multicenter study, consecutive patients who had been diagnosed with TED, presenting with either hypothyroidism or euthyroidism as their baseline thyroid dysfunction and treated with teprotumumab were included. All patients had measurements of proptosis, clinical activity scores (CAS), diplopia scores and four-point strabismus scores before and after therapy.Twenty-six patients met the inclusion criteria. Mean age was 48 ± 14 years old and mean duration of TED prior to treatment was 31 ± 43 months. All patients received 8 infusions. Mean (SD) reduction in proptosis for study orbits was 2.7 mm (1.8) (p < 0.05) and 1.8 mm (2.0) for the fellow orbit (p < 0.05). In the study orbit, mean (SD) CAS was 2.3 (1.3) before therapy and 1.0 (1.0) following therapy (p < 0.05). At baseline, mean (SD) diplopia score was 1.2 (1.1) and 0.9 (1.1) following therapy (p < 0.05).Teprotumumab reduces proptosis and inflammation in patients presenting with TED associated with hypothyroidism and euthyroidism. The results of this study highlight the potential for teprotumumab therapy in this subgroup and also provide a unique insight into the potential role of the IGF-1R in these patients.Methods: Teprotumumab, a novel IGF-1R antibody was recently shown to significantly reduce the signs of acute and chronic thyroid eye disease (TED) related to hyperthyroidism. Given the lower incidence of TED associated with hypothyroidism / euthyroidism, there is a paucity of data regarding the efficacy of teprotumumab in this group.In this multicenter study, consecutive patients who had been diagnosed with TED, presenting with either hypothyroidism or euthyroidism as their baseline thyroid dysfunction and treated with teprotumumab were included. All patients had measurements of proptosis, clinical activity scores (CAS), diplopia scores and four-point strabismus scores before and after therapy.Twenty-six patients met the inclusion criteria. Mean age was 48 ± 14 years old and mean duration of TED prior to treatment was 31 ± 43 months. All patients received 8 infusions. Mean (SD) reduction in proptosis for study orbits was 2.7 mm (1.8) (p < 0.05) and 1.8 mm (2.0) for the fellow orbit (p < 0.05). In the study orbit, mean (SD) CAS was 2.3 (1.3) before therapy and 1.0 (1.0) following therapy (p < 0.05). At baseline, mean (SD) diplopia score was 1.2 (1.1) and 0.9 (1.1) following therapy (p < 0.05).Teprotumumab reduces proptosis and inflammation in patients presenting with TED associated with hypothyroidism and euthyroidism. The results of this study highlight the potential for teprotumumab therapy in this subgroup and also provide a unique insight into the potential role of the IGF-1R in these patients.Results: Teprotumumab, a novel IGF-1R antibody was recently shown to significantly reduce the signs of acute and chronic thyroid eye disease (TED) related to hyperthyroidism. Given the lower incidence of TED associated with hypothyroidism / euthyroidism, there is a paucity of data regarding the efficacy of teprotumumab in this group.In this multicenter study, consecutive patients who had been diagnosed with TED, presenting with either hypothyroidism or euthyroidism as their baseline thyroid dysfunction and treated with teprotumumab were included. All patients had measurements of proptosis, clinical activity scores (CAS), diplopia scores and four-point strabismus scores before and after therapy.Twenty-six patients met the inclusion criteria. Mean age was 48 ± 14 years old and mean duration of TED prior to treatment was 31 ± 43 months. All patients received 8 infusions. Mean (SD) reduction in proptosis for study orbits was 2.7 mm (1.8) (p < 0.05) and 1.8 mm (2.0) for the fellow orbit (p < 0.05). In the study orbit, mean (SD) CAS was 2.3 (1.3) before therapy and 1.0 (1.0) following therapy (p < 0.05). At baseline, mean (SD) diplopia score was 1.2 (1.1) and 0.9 (1.1) following therapy (p < 0.05).Teprotumumab reduces proptosis and inflammation in patients presenting with TED associated with hypothyroidism and euthyroidism. The results of this study highlight the potential for teprotumumab therapy in this subgroup and also provide a unique insight into the potential role of the IGF-1R in these patients.Conclusion: Teprotumumab, a novel IGF-1R antibody was recently shown to significantly reduce the signs of acute and chronic thyroid eye disease (TED) related to hyperthyroidism. Given the lower incidence of TED associated with hypothyroidism / euthyroidism, there is a paucity of data regarding the efficacy of teprotumumab in this group.In this multicenter study, consecutive patients who had been diagnosed with TED, presenting with either hypothyroidism or euthyroidism as their baseline thyroid dysfunction and treated with teprotumumab were included. All patients had measurements of proptosis, clinical activity scores (CAS), diplopia scores and four-point strabismus scores before and after therapy.Twenty-six patients met the inclusion criteria. Mean age was 48 ± 14 years old and mean duration of TED prior to treatment was 31 ± 43 months. All patients received 8 infusions. Mean (SD) reduction in proptosis for study orbits was 2.7 mm (1.8) (p < 0.05) and 1.8 mm (2.0) for the fellow orbit (p < 0.05). In the study orbit, mean (SD) CAS was 2.3 (1.3) before therapy and 1.0 (1.0) following therapy (p < 0.05). At baseline, mean (SD) diplopia score was 1.2 (1.1) and 0.9 (1.1) following therapy (p < 0.05).Teprotumumab reduces proptosis and inflammation in patients presenting with TED associated with hypothyroidism and euthyroidism. The results of this study highlight the potential for teprotumumab therapy in this subgroup and also provide a unique insight into the potential role of the IGF-1R in these patients. [ABSTRACT FROM AUTHOR]