Effect of low-dose aspirin on urinary 11-dehydro-thromboxane B2 in the ASCEND (A Study of Cardiovascular Events iN Diabetes) randomized controlled trial

Autor: Sarah Parish, Georgina Buck, Theingi Aung, Marion Mafham, Sarah Clark, Michael R. Hill, Rory Collins, Louise Bowman, Jane Armitage, on behalf of the ASCEND Study Collaborative Group
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Trials, Vol 24, Iss 1, Pp 1-5 (2023)
Druh dokumentu: article
ISSN: 1745-6215
DOI: 10.1186/s13063-023-07198-z
Popis: Abstract Background Aspirin is widely used for cardioprotection with its antiplatelet effects due to the blocking of thromboxane A2 production. However, it has been suggested that platelet abnormalities in those with diabetes prevent adequate suppression with once daily aspirin. Methods In the ASCEND randomized double-blind trial of aspirin 100 mg once daily versus placebo in participants with diabetes but no history of cardiovascular disease, suppression was assessed by measuring 11-dehydro-thromboxane B2 excretion in urine (U-TXM) in a randomly selected sample of 152 participants (76 aspirin arm, 74 placebo arm), plus 198 (93 aspirin arm, 105 placebo arm) adherent to study drugs and selected to maximize the numbers ingesting their last tablet 12–24 h before urine sampling. U-TXM was assayed using a competitive ELISA assay in samples mailed a mean of 2 years after randomization, with time since taking last aspirin/placebo tablet recorded at the time of sample provision. Effective suppression (U-TXM
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