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In high-risk stent patients, stopping aspirin after discharge reduced bleeding without more heart attacks.
*Meta-analysis of randomized trials; Level 1a.
Navarese EP, Gurbel P, Tantry U, et al. PLoS Medicine. 2026;23(3):e1004995. doi:10.1371/journal.pmed.1004995
After coronary stenting, two antiplatelet medicines lower clot risk but increase bleeding. The safest timing for aspirin withdrawal in higher-risk patients has been uncertain.
27,743 adults in 7 randomized trials after coronary stenting, at high clotting or bleeding risk. Excluded were trials not limited to high-risk patients, clopidogrel-only strategies, nonrandomized designs, confounded medication changes, or nonstandard stents.
Aspirin not started or stopped in hospital, or stopped within 3 months, with ticagrelor or prasugrel alone.
Continued aspirin plus ticagrelor or prasugrel.
Co-primary outcomes: heart attack and clinically relevant bleeding using the Bleeding Academic Research Consortium scale (0–5).
Mostly 12 months; one trial contributed 30-day data.
| Significant outcome | Comparison | Effect | Absolute impact |
|---|---|---|---|
| Clinically relevant bleeding | Aspirin stopped ≤3 months | Hazard ratio 0.55 | 3.80% vs 6.05%; number needed to treat 45 |
| Major bleeding | Early aspirin withdrawal trials | Hazard ratio 0.48 | 1.02% vs 2.14%; number needed to treat 90 |
| Heart attack | Immediate aspirin nonuse or in-hospital stop | Hazard ratio 1.41 | Harm signal |
Overall heart attack, death, stroke, and stent clot rates did not significantly differ. Analyses used intention-to-treat trial data. Continued two-drug therapy is current standard for many acute coronary syndrome patients.
Used published summary data, not individual patient data. Only two trials tested immediate withdrawal. Bleeding results varied across studies, and several trials were open-label.
No specific funding; several authors reported industry ties.
For high-risk stent patients on ticagrelor or prasugrel, consider stopping aspirin at 1–3 months; avoid immediate cessation and clopidogrel extrapolation.
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