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Revista Colombiana de Cardiología
Print version ISSN 0120-5633
Abstract
TRIANA, Juan J. et al. Cost-effectiveness of dabigatran compared with warfarin in the treatment of patients with non valvular atrial fibrillation in Colombia. Rev. Colomb. Cardiol. [online]. 2016, vol.23, n.2, pp.82-86. ISSN 0120-5633. https://doi.org/10.1016/j.rccar.2015.06.010.
Introduction:Atrial fibrillation (AF), the most common cardiac rhythm disorder, increases the risk of stroke risk by 5 fold. AF prevalence in Colombia has been estimated in 3.6% in population age 60 or over (some 180 000 patients). Objective: The aim of this study was to estimate cost-effectiveness of dabigatran 110 and 150 mg BID compared with warfarin as a therapy for non valvular AF in Colombian population. Methods: From a third-party payer perspective (Colombian health system) we used a three-month cycle Markov model with 6 health states (and death): non-disabling stroke, disabling stroke, myocardial infarction and pulmonary embolism; two additional events were minor and mayor bleeding. Transition probabilities and proportion of events were extracted from the RELY trial; utilities were derived from the literature. Costs for medications and procedures were obtained from official government databases, all costs were in 2014 Colombian pesos (1 USD = 2.000 COP). Annual discount rate was 5% and we used a life time horizon (close to 20 years, on average). Cost-effectiveness threshold was 3 times per capita GDP (around USD 22,500). Results: Compared with warfarin, patients treated with dabigatran 150 and 110 mg gained, on average 0.37 and 0.23 life-years respectively, or 0.55 and 0.43 QALYs. The ICER for dabigatran 150 mg was USD 11,537 per QALY, and for dabigatran 110 mg was 17,090 per QALY gained. Conclusions: Dabigatran 150 and 110 mg, compared with warfarin -the standard therapy- are cost-effective therapies for ambulatory treatment of patients with non valvular AF.
Keywords : Atrial fibrillation; Anticoagulant therapy; Cerebrovascular diseases.