ArticleClinical drug investigation2017
Assessment of the Impact of L-Thyroxine Therapy on Bleeding Risk in Patients Receiving Vitamin K Antagonists.
Article in Clinical drug investigation, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02706080 (Registry of Patient With Antithrombotic Agents Admitted to an Emergency), which is not on this 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.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Registry of Patient With Antithrombotic Agents Admitted to an Emergency
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0 citing papers in PubMed, 0 citations in OpenAlex.
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Authors and funding
8 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundSeveral studies have suggested a link exists between L-thyroxine and the coagulation system, and, according to some drug interaction studies, L-thyroxine can potentiate the effect of warfarin. This study sought to assess whether thyroid hormone therapy could impact the risk of bleeding in patients receiving vitamin K antagonists (VKAs).
methodsWe conducted a monocentric, retrospective study on prospectively collected data from consecutive patients enrolled in the Registry of patient with AntiThrombotic agents admitted to an Emergency Department (RATED) database, and compared the hemorrhage rates (both major and nonmajor) of patients receiving treatment with and without L-thyroxine. Propensity score matching analysis was performed to reduce the differences between patients receiving L-thyroxine and those not receiving L-thyroxine in order to reassess bleeding outcomes in patients receiving VKAs.
resultsFrom January 2014 to June 2015, 1454 patients receiving VKAs were recruited into the RATED database. Overall, 187 patients (12.8%) received L-thyroxine. Patients receiving L-thyroxine were more likely to be female than those not receiving L-thyroxine (78.1 vs. 55%) and more likely to exhibit hypertension (65.5 vs. 55.7%; p = 0.015), but less likely to have history of myocardial infarction (9.6 vs. 16.6%; p = 0.022) or higher creatinine levels (96.1 vs. 112.1 μmol/L; p = 0.04). After propensity score matching, bleeding outcomes were not significantly different between patients receiving L-thyroxine and those not receiving L-thyroxine.
conclusionsOur study revealed no evidence that L-thyroxine could increase bleeding risk in patients receiving VKAs. However, physicians must be aware that patients with thyroid disease receiving VKA therapy could have other drug interactions, particularly with amiodarone therapy. CLINICALTRIALS. GOV NUMBER: NCT02706080.
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