Heart HealthBlood Pressure Drug Benefits Peak Within Months, Not Years
A landmark individual-participant meta-analysis of 51 randomized trials involving over 358,000 people found that blood pressure-lowering therapy reduces major cardiovascular events quickly — within the first year — but the relative benefit does not grow with longer treatment. A 5 mmHg reduction in systolic blood pressure was linked to a 12% lower risk of stroke, heart attack, or heart failure in year one, with no progressive increase over subsequent years. Crucially, this pattern held across all five major antihypertensive drug classes. The findings challenge assumptions that longer treatment duration compounds cardiovascular protection, and instead suggest that targeting higher-risk individuals offers more clinical value than extending therapy in lower-risk patients.
