ArticleEuropean thyroid journal2025
High-dose versus low-dose block-and-replace treatment for a first episode of Graves' disease.
Article in European thyroid journal, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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6 authors.
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Abstract
Objective: The optimal treatment with antithyroid drugs (ATDs) for a first episode of Graves' disease (GD) remains controversial. Methods: Retrospective, two academic centres study of newly diagnosed GD between 1990 and 2022, treated with ATD in block-and-replace (B+R) regimen for at least 12 months and followed up for at least 1 year after ATD discontinuation or until disease relapse. Sixty patients received high-dose B+R (HD) with fixed ATD dose maintained during the study, and 60 patients received low-dose B+R (LD) with lower ATD dose adjusted during the study. Results: Baseline characteristics were similar in both groups. The point-prevalence of euthyroidism was not different between HD and LD (38 vs 47%, P = 0.460 at 6 months, 69 vs 82%, P = 0.194 at 12 months, 70 vs 78%, P = 0.370 at 18 months, respectively). At 18 months, 27% HD vs 38% LD (P = 0.242) had thyroid eye disease. There were no differences in the number or type of ATD-related adverse events (AE) (no AE 73 vs 78%, P = 0.707). LD received mean lower ATD dose (15.3 ± 4.2 vs 30.0 ± 0.0 mg/day, P < 0.001) and lower levothyroxine dose (72.6 ± 16.7 vs 100.6 ± 24.5 μg/day, P < 0.001). After a first course of ATD, 63% of HD patients and 60% of LD patients relapsed (P = 0.707) after a median time (interquartile range) of 11.0 (18) vs 7.0 (19) months (P = 0.109). Conclusion: We observed similar relapse rates in patients with a first episode of GD receiving up to 50% less ATD and 30% less levothyroxine dose than high-dose B+R regimen.
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