Suspected adverse drug reaction reports with oral anticoagulants in Portugal: a pharmacovigilance study

Expert Opinion on Drug Safety
Daniel CaldeiraJoaquim J Ferreira

Abstract

In this pharmacovigilance study, we aimed to determine the incidence of spontaneously reported suspected adverse drug reactions (ADRs) related to oral anticoagulants: non-vitamin K antagonist oral anticoagulants (NOACs; apixaban, dabigatran, edoxaban, rivaroxaban) and vitamin K antagonists (VKA) Research design and methods: In this retrospective observational study, we extracted all the individual case safety reports related to oral anticoagulants recorded in the Portuguese Pharmacovigilance Database (January 2010 to April 2015). The annual incidence of suspected ADRs was estimated using drug exposure data. Disproportionality of reporting ADR was addressed through reporting odds ratio (ROR) and 99% confidence intervals. We appraised 794 suspected ADR (78% related to NOACs). The annual number of ADRs increased overtime with 9 ADRs/million Defined Daily Dose (DDD) at the end of 2014. The incidence of NOACs ADRs decreased from 2012 onwards. VKA showed a disproportion in 'Investigation' (ROR 0.10, 99%CI 0.05-0.22) and 'Injury, poisoning and procedural complications' (ROR 0.36, 99%CI 0.19-0.69) ADRs compared with NOACs. NOACs had a higher significant disproportion of 'Nervous system disorders' related ADRs (ROR 3.98, 99%CI 1.50-10.5...Continue Reading

References

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Citations

Nov 28, 2020·International Journal of Clinical Pharmacy·Simona DvorackovaJosef Maly
Mar 2, 2021·Journal of Clinical Pharmacy and Therapeutics·Maria Antonietta BarbieriEdoardo Spina

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