A major international trial presented at the American Heart Association’s Scientific Sessions 2026 suggests that keeping blood pressure tightly controlled after an ischaemic stroke may reduce the risk of major cardiovascular events, including further strokes.
The OPTIMAL-STROKE trial, published in the New England Journal of Medicine, examined whether intensive blood pressure management in patients who had previously experienced an ischaemic stroke (a stroke caused by a blood clot blocking blood supply to the brain) produced better outcomes than standard treatment. The findings were shared at #ScientificSessions26, the American Heart Association’s annual scientific conference.
The trial adds to a long-running question in stroke medicine: how low should blood pressure go after a first event? Standard care already targets raised blood pressure as a key risk factor, but the OPTIMAL-STROKE results suggest a more intensive approach may offer additional protection for some patients.
Stroke is one of the leading causes of death and long-term disability in England. An ischaemic stroke — the most common type — happens when a clot cuts off blood flow to part of the brain.
The research was posted by the New England Journal of Medicine’s official account and linked to the full published article. The trial’s primary endpoint was a composite of major cardiovascular events, including cardiovascular death, heart attack, nonfatal stroke, unstable angina hospitalisation, and heart failure hospitalisation. According to the published results, major cardiovascular events occurred in 10.9% of participants in the intensive treatment group compared with 13.5% in the standard treatment group (hazard ratio 0.79), representing approximately a 21% reduction in major cardiovascular events.
Patients who have had a stroke and have questions about their blood pressure management should speak to their GP or stroke specialist rather than adjusting any medication themselves. NHS 111 can provide guidance on stroke symptoms and when to seek urgent care.
Key information
- Stroke symptoms to act on immediately: face drooping, arm weakness, speech difficulty — call 999 without delay (NHS guidance uses the FAST acronym)
- Blood pressure concerns after a stroke: speak to your GP or stroke care team
- NHS 111 is available 24 hours a day for health advice that is not an emergency
- The full OPTIMAL-STROKE trial is published in the New England Journal of Medicine
Source: @NEJM