Ticagrelor plus aspirin for 1 month, followed by ticagrelor monotherapy for 23 months vs aspirin plus clopidogrel or ticagrelor for 12 months, followed by aspirin monotherapy for 12 months after implantation of a drug-eluting stent: a multicentre, open-label, randomised superiority trial
Why the study?
Does ticagrelor plus aspirin for 1 month followed by ticagrelor monotherapy for 23 months reduce all-cause mortality or new Q-wave myocardial infarction in patients undergoing percutaneous coronary intervention compared to standard dual antiplatelet therapy?
Population
15,968 patients undergoing percutaneous coronary intervention with a biolimus A9-eluting stent for stable…
Comparison
75-100 mg aspirin daily plus 90 mg ticagrelor… vs Standard dual antiplatelet therapy with 75-100…
Design
RCT, Randomly assigned, concealed, stratified by centre and clinical…
Follow-up
2 years
Key result
Ticagrelor in combination with aspirin for 1 month followed by ticagrelor alone for 23 months was not superior to 12 months of standard dual antiplatelet therapy followed by aspirin alone in preventing all-cause mortality or new Q-wave myocardial infarction (RR 0.87, p=0.073).
Authors
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Does not support ticagrelor monotherapy after 1-month DAPT post-PCI; fails to confirm superiority hypothesis in broad populations.
RCT (n=15,968)
Open-label
1:1, concealed, stratified by centre and clinical presentation, blocked
Yes
Does ticagrelor plus aspirin for 1 month followed by ticagrelor monotherapy for 23 months reduce all-cause mortality or new Q-wave myocardial infarction in patients undergoing percutaneous coronary intervention compared to standard dual antiplatelet therapy?
Ticagrelor monotherapy after 1 month of dual antiplatelet therapy was not superior to standard 12-month dual antiplatelet therapy followed by aspirin in reducing mortality or new Q-wave myocardial infarction at 2 years after percutaneous coronary intervention.
Relative Risk: 0.87 (95% CI 0.75–1.01)
Absolute Event Rate: 3.81% vs 4.37%
p-value: p=0.073
Vranckx et al. (2018) conducted an RCT in Stable coronary artery disease or acute coronary syndromes undergoing percutaneous coronary intervention (n=15,968). Ticagrelor plus aspirin for 1 month, followed by ticagrelor monotherapy vs. 75-100 mg aspirin daily plus either 75 mg clopidogrel daily or 90 mg ticagrelor twice daily for 12 months, followed by aspirin monotherapy for 12 months was evaluated on Composite of all-cause mortality or non-fatal centrally adjudicated new Q-wave myocardial infarction (RR 0.87, 95% CI 0.75-1.01, p=0.073). Ticagrelor in combination with aspirin for 1 month followed by ticagrelor alone for 23 months was not superior to 12 months of standard dual antiplatelet therapy followed by aspirin alone in preventing all-cause mortality or new Q-wave myocardial infarction (RR 0.87, p=0.073).
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