ArticleAmerican journal of cardiovascular drugs : drugs, devices, and other interventions2026
Dual Antiplatelet Therapy beyond 1 Year after a Myocardial Infarction Compared with Low-Dose Aspirin Alone: A 3-Year Follow-Up Cohort Study Within the French SNDS Nationwide Claims Database.
Article in American journal of cardiovascular drugs : drugs, devices, and other interventions, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
introductionAntiplatelet therapy with low-dose aspirin, alone or as dual antiplatelet therapy (DAPT) with a P2Y
methodsThis cohort study performed in the French nationwide claims database compared 3-year outcomes between DAPT and low-dose aspirin alone pursued beyond 1 year after MI. All adults discharged from hospital following MI in 2013-2014, and who survived ≥ 1 year under DAPT, without rehospitalization for acute coronary syndrome or major bleeding were enrolled (N = 51,468). The primary outcome was a composite of MI, stroke, major bleeding, or all-cause death during the 3 years following the index date (defined as 365 days after MI). Secondary outcomes were a composite of MI, stroke, and all-cause death, and each component of the primary composite. DAPT and low-dose aspirin exposure periods were analyzed as time-dependent variables and compared using hazard ratios (HR) from Cox proportional hazard or Fine-Gray competing risks models, adjusted using a high-dimensional disease risk score.
resultsThe 3-year cumulative follow-up duration was 93,398 person-years (DAPT exposure: 26,223 person-years; low-dose aspirin exposure: 67,175 person-years). HRs for DAPT versus low-dose aspirin were 0.93 (0.85-1.03) for the primary composite outcome, 0.93 (0.84-1.03) for the secondary composite outcome, 1.04 (0.87-1.25) for MI, 0.91 (0.70-1.17) for stroke, 1.19 (0.88-1.60) for major bleeding, and 0.94 (0.83-1.07) for death.
conclusionsThis national cohort study did not find a significant benefit of continued DAPT beyond 1 year after MI compared with low-dose aspirin. REGISTRATION: This study was registered with the European Medicines Agency EUPASS registry ( https://catalogues.ema.europa.eu/catalogue-rwd-studies ; registration no. EUPAS29177).
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