• Jeffrey A Sparks, Tamara Lesperance, Neil A Accortt, and Daniel H Solomon.
• Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts.
• Arthritis Care Res (Hoboken). 2019 Apr 1; 71 (4): 512-520.

ObjectiveTo examine disease-modifying antirheumatic drug (DMARD) treatments and estimate the risk of a subsequent cardiovascular (CV) event following an initial CV event in patients with rheumatoid arthritis (RA), psoriatic arthritis (PsA), or psoriasis.MethodsWe analyzed data from MarketScan claims databases (January 1, 2006 to June 30, 2015) for adults with RA, PsA, or psoriasis and an initial/index CV event (acute myocardial infarction, stroke, or coronary revascularization) while receiving DMARDs (tumor necrosis factor inhibitor [TNFi] biologic DMARDs [bDMARDs], conventional synthetic DMARDs [csDMARDs], or non-TNFi bDMARDs). We studied DMARD treatment patterns following the index event and rates of subsequent CV events. We used Cox regression to investigate predictors of DMARD discontinuation and risk factors for subsequent CV events.ResultsAmong 10,254 patients, 15.3% discontinued and 15.5% switched DMARD therapy after the index CV event. Independent predictors of DMARD discontinuation included a psoriasis diagnosis, renal disease, hypertension, heart failure, diabetes mellitus, older age, and baseline csDMARD or non-TNFi bDMARD use (versus TNFi bDMARDs). Rates per 1,000 patient-years of subsequent events were 75.2 (95% confidence interval [95% CI] 54.4-96.0) for patients taking TNFi bDMARDs, 83.6 (95% CI 53.3-113.9) for csDMARDs, and 122.4 (95% CI 60.6-184.3) for non-TNFi bDMARDs. A diagnosis of RA (versus psoriasis) and heart failure at baseline, but not a DMARD pattern after the index event, were independently associated with an increased risk of subsequent CV event.ConclusionIn this large nationwide study, nearly one-third of patients with RA, PsA, or psoriasis switched or discontinued DMARD therapy following a CV event. There was no association between DMARD class and the risk of a subsequent CV event.© 2018, The Authors. Arthritis Care & Research published by Wiley Periodicals, Inc. on behalf of American College of Rheumatology.

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