Management of initial bleeding or spotting after levonorgestrel-releasing intrauterine system placement: a randomized controlled trial

Obstetrics and Gynecology
Terje SørdalThomas Schmelter


To assess the efficacy of tranexamic acid or mefenamic acid in the management of the initial "nuisance" bleeding or spotting in the period immediately after placement of the levonorgestrel-releasing intrauterine system. Women were randomized after levonorgestrel-releasing intrauterine system placement to oral tranexamic acid (500 mg), mefenamic acid (500 mg), or placebo three times daily during bleeding or spotting episodes over a 90-day treatment period. Treatment was initiated from onset of a bleeding or spotting episode and continued until the first day after bleeding or spotting stopped and restarted with a new bleeding or spotting episode. The primary efficacy variable was reduction in the number of bleeding or spotting days. Tranexamic acid and mefenamic acid were compared with placebo using a one-sided Wilcoxon rank-sum test. Bonferroni-Holm adjustment was used to account for multiple testing. A total of 204 women were screened; 187 were randomized to tranexamic acid (n=63), mefenamic acid (n=63), or placebo (n=61). The median number of bleeding or spotting days experienced during treatment was 25, 29, and 33 days in the three groups, respectively. The median number of bleeding or spotting days was reduced by 6 days (95%...Continue Reading


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