Prevention of Stroke with Ticagrelor in Patients with Prior Myocardial Infarction: Insights from PEGASUS-TIMI 54 (Prevention of Cardiovascular Events in Patients With Prior Heart Attack Using Ticagrelor Compared to Placebo on a Background of Aspirin-Thrombolysis in Myocardial Infarction 54)
Language English Country United States Media print-electronic
Document type Journal Article, Randomized Controlled Trial
PubMed
27576775
DOI
10.1161/circulationaha.116.024637
PII: CIRCULATIONAHA.116.024637
Knihovny.cz E-resources
- Keywords
- hemorrhagic stroke, ischemic stroke, platelet aggregation inhibitors, secondary prevention, stroke, thrombosis, ticagrelor,
- MeSH
- Adenosine administration & dosage analogs & derivatives therapeutic use MeSH
- Purinergic P2Y Receptor Antagonists therapeutic use MeSH
- Aspirin administration & dosage therapeutic use MeSH
- Stroke drug therapy prevention & control MeSH
- Myocardial Infarction drug therapy prevention & control MeSH
- Platelet Aggregation Inhibitors therapeutic use MeSH
- Intracranial Hemorrhages prevention & control MeSH
- Hemorrhage chemically induced MeSH
- Middle Aged MeSH
- Humans MeSH
- Coronary Artery Disease drug therapy MeSH
- Risk MeSH
- Secondary Prevention methods MeSH
- Aged MeSH
- Ticagrelor MeSH
- Check Tag
- Middle Aged MeSH
- Humans MeSH
- Male MeSH
- Aged MeSH
- Female MeSH
- Publication type
- Journal Article MeSH
- Randomized Controlled Trial MeSH
- Names of Substances
- Adenosine MeSH
- Purinergic P2Y Receptor Antagonists MeSH
- Aspirin MeSH
- Platelet Aggregation Inhibitors MeSH
- Ticagrelor MeSH
BACKGROUND: In the PEGASUS-TIMI 54 trial (Prevention of Cardiovascular Events in Patients With Prior Heart Attack Using Ticagrelor Compared to Placebo on a Background of Aspirin-Thrombolysis in Myocardial Infarction 54), ticagrelor reduced the risk of major adverse cardiovascular events when added to low-dose aspirin in stable patients with prior myocardial infarction, resulting in the approval of ticagrelor 60 mg twice daily for long-term secondary prevention. We investigated the incidence of stroke, outcomes after stroke, and the efficacy of ticagrelor focusing on the approved 60 mg twice daily dose for reducing stroke in this population. METHODS: Patients were followed for a median of 33 months. Stroke events were adjudicated by a central committee. Data from similar trials were combined using meta-analysis. RESULTS: Of 14 112 patients randomly assigned to placebo or ticagrelor 60 mg, 213 experienced a stroke; 85% of these strokes were ischemic. A total of 18% of strokes were fatal and another 15% led to either moderate or severe disability at 30 days. Ticagrelor significantly reduced the risk of stroke (hazard ratio, 0.75; 95% confidence interval, 0.57-0.98; P=0.034), driven by a reduction in ischemic stroke (hazard ratio, 0.76; 95% confidence interval, 0.56-1.02). Hemorrhagic stroke occurred in 9 patients on placebo and 8 patients on ticagrelor. A meta-analysis across 4 placebo-controlled trials of more intensive antiplatelet therapy in 44 816 patients with coronary disease confirmed a marked reduction in ischemic stroke (hazard ratio, 0.66; 95% confidence interval, 0.54-0.81; P=0.0001). CONCLUSIONS: High-risk patients with prior myocardial infarction are at risk for stroke, approximately one-third of which are fatal or lead to moderate-to-severe disability. The addition of ticagrelor 60 mg twice daily significantly reduced this risk without an excess of hemorrhagic stroke but with more major bleeding. In high-risk patients with coronary disease, more intensive antiplatelet therapy should be considered not only to reduce the risk of coronary events, but also of stroke. CLINICAL TRIAL REGISTRATION: URL: http://www.clinicaltrials.gov. Unique Identifier: NCT01225562.
References provided by Crossref.org
ClinicalTrials.gov
NCT01225562