Author:
Sabaté M.,Vidal X.,Ballarin E.,Rottenkolber M.,Schmiedl S.,Grave B.,Huerta C.,Martin-Merino E.,Montero D.,Leon-Muñoz L. M.,Gasse C.,Moore N.,Droz C.,Lassalle R.,Aakjær M.,Andersen M.,De Bruin M. L.,Souverein P.,Klungel O. H.,Gardarsdottir H.,Ibáñez L.
Abstract
Aims: To describe and compare the adherence to different direct oral anticoagulants (DOACs) in eight European databases representing six countries.Methods: Longitudinal drug utilization study of new users (≥18 years) of DOACs (dabigatran, rivaroxaban, apixaban) with a diagnosis of non-valvular atrial fibrillation (2008–2015). Adherence was examined by estimating persistence, switching, and discontinuation rates at 12 months. Primary non-adherence was estimated in BIFAP and SIDIAP databases.Results: The highest persistence rate was seen for apixaban in the CPRD database (81%) and the lowest for dabigatran in the Mondriaan database (22%). The switching rate for all DOACs ranged from 2.4 to 13.1% (Mondriaan and EGB databases, respectively). Dabigatran had the highest switching rate from 5.0 to 20.0% (Mondriaan and EGB databases, respectively). The discontinuation rate for all DOACs ranged from 16.0 to 63.9% (CPRD and Bavarian CD databases, respectively). Dabigatran had the highest rate of discontinuers, except in the Bavarian CD and AOK NORDWEST databases, ranging from 23.2 to 64.6% (CPRD and Mondriaan databases, respectively). Combined primary non-adherence for examined DOACs was 11.1% in BIFAP and 14.0% in SIDIAP. There were differences in population coverage and in the type of drug data source among the databases.Conclusion: Despite the differences in the characteristics of the databases and in demographic and baseline characteristics of the included population that could explain some of the observed discrepancies, we can observe a similar pattern throughout the databases. Apixaban was the DOAC with the highest persistence. Dabigatran had the highest proportion of discontinuers and switchers at 12 months in most databases (EMA/2015/27/PH).
Subject
Pharmacology (medical),Pharmacology
Cited by
9 articles.
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