LAUSR

OBJECTIVES People with PsA are at increased risk of cardiovascular disease. The objective of this study was to quantify the risk of myocardial infarction (MI), stroke and revascularizations in people with apremilast-treated PsA compared with patients receiving other PsA treatments. METHODS We conducted a cohort study of 68 678 patients with PsA treated with apremilast, TNF inhibitor (TNF-i) biologics, IL-17 or -12/23 biologics, conventional DMARDs or CS in the United States MarketScan database. Cohort entry was date of first study drug after 21 March 2014. Cases were patients with MI, stroke or revascularization. We calculated incidence rates (IRs) and incidence rate ratios for each outcome by exposure. RESULTS We identified 292 MI, 151 stroke and 475 revascularizations cases. IRs for MI were lowest for users of TNF-i biologics [1.4 per 1000 person-years (PY)] and similar for all other treatments, including apremilast, ranging from 1.8 to 3.8 per 1000 PY. IRs were similar for all treatments for both stroke (0.1-1.6 per 1000 PY) and revascularization (3.1-5.1 per 1000 PY). IRs for apremilast were 2.5 per 1000 PY for MI, 1.6 per 1000 PY for stroke and 3.3 per 1000 PY for revascularization. CONCLUSION In patients with treated PsA, IRs of MI, stroke and revascularization were low for all systemic treatments evaluated. Although the number of events was small, apremilast exposure did not signal potential acute cardiovascular harm and was not associated with a material increase in the risk of these serious cardiac events.