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Blood pressure reduction and anti‐hypertensive treatment choice: A post‐hoc analysis of the SPRINT trial

Abstract : Background: Uncontrolled blood pressure (BP) increases the risk of major adverse cardiovascular events. In SPRINT an intensive versus standard BP lowering strategy resulted in a lower rate of cardiovascular events and death. Whether BP reduction only or also the choice of anti-hypertensive drugs is associated with outcomes remains to be elucidated. Aims: We aim to study the association of BP and different anti-hypertensive drugs with several cardiovascular outcomes. Methods: Time-updated Cox and mixed-effects models. The primary outcome was a composite of first myocardial infarction, acute coronary syndrome, stroke, heart failure, or cardiovascular death. Results: A total of 9361 patients were included. The anti-hypertensive agents most frequently used were ACEi/ARBs, with an almost 20% higher prescription rate in the intensive arm (80% vs. 61%), followed by thiazide-type diuretics (65% vs. 42%), calcium-channel blockers (57% vs. 39%), and beta-blockers (52% vs. 26%). Mineralocorticoid receptor antagonists were rarely used (≤7% of the observations). In multivariate analysis, the use of ACEi/ARBs, especially in combination with thiazides, were independently associated with a lower primary outcome event-rate (HR [95%CI] 0.75 [0.61-0.92], p = .006), whereas a DBP <60 mmHg was independently associated with a higher event-rate (HR [95%CI] 1.36 [1.07-1.71], p = .011). SBP <120 mmHg was associated with lower rate of cardiovascular and all-cause death on intensive treatment but not on the standard arm (interaction p < .05 for both). Conclusions: In SPRINT, an intensive therapy strategy achieving SBP <120 mmHg with a DBP ≥60 mmHg, and using ACEi/ARBs plus thiazides was associated with a lower event-rate.
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Submitted on : Tuesday, May 25, 2021 - 4:59:22 PM
Last modification on : Thursday, May 27, 2021 - 3:15:01 PM
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João Ferreira, John Gregson, Michael Böhm, Patrick Rossignol, Faiez Zannad, et al.. Blood pressure reduction and anti‐hypertensive treatment choice: A post‐hoc analysis of the SPRINT trial. Clinical Cardiology, Wiley, 2021, 44 (5), pp.665-674. ⟨10.1002/clc.23591⟩. ⟨hal-03235254⟩



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