Personalisation of DAPT: from ‘bench’ to bedside

2022 ◽  
Vol 4 (1) ◽  
pp. 20-22
Author(s):  
Matthew Goss ◽  
Holly Morgan ◽  
Tim Kinnaird
Keyword(s):  
Percutaneous Coronary Intervention ◽  
Antiplatelet Therapy ◽  
Coronary Intervention ◽  
Healthcare Systems ◽  
Prolonged Treatment ◽  
Important Research ◽  
Percutaneous Coronary ◽  
The Ideal

The ideal duration of antiplatelet therapy following percutaneous coronary intervention is a topic of much discussion within the cardiology community. Numerous contemporary studies have highlighted benefits of both shortened and prolonged treatment courses within particular patient cohorts. Despite this, there is a delay in seeing such individualised decisions being made within stretched healthcare systems. We aimed to highlight this issue and facilitate discussions on how we can bring this important research from ‘bench’ to ‘bedside’.

TWILIGHT: A Randomized Trial of Ticagrelor Monotherapy Versus Ticagrelor Plus Aspirin Beginning at 3 Months in High-risk Patients Undergoing Percutaneous Coronary Intervention

2020 ◽  
Vol 14 ◽  
Author(s):  
Johny Nicolas ◽  
Usman Baber ◽  
Roxana Mehran
Keyword(s):  
Percutaneous Coronary Intervention ◽  
High Risk ◽  
Antiplatelet Therapy ◽  
Dual Antiplatelet Therapy ◽  
Coronary Intervention ◽  
Bleeding Events ◽  
High Risk Patients ◽  
Risk Of Death ◽  
Percutaneous Coronary ◽  
Risk Patients

A P2Y12 inhibitor-based monotherapy after a short period of dual antiplatelet therapy is emerging as a plausible strategy to decrease bleeding events in high-risk patients receiving dual antiplatelet therapy after percutaneous coronary intervention. Ticagrelor With Aspirin or Alone in High-Risk Patients After Coronary Intervention (TWILIGHT), a randomized double-blind trial, tested this approach by dropping aspirin at 3 months and continuing with ticagrelor monotherapy for an additional 12 months. The study enrolled 9,006 patients, of whom 7,119 who tolerated 3 months of dual antiplatelet therapy were randomized after 3 months into two arms: ticagrelor plus placebo and ticagrelor plus aspirin. The primary endpoint of interest, Bleeding Academic Research Consortium type 2, 3, or 5 bleeding, occurred less frequently in the experimental arm (HR 0.56; 95% CI [0.45–0.68]; p<0.001), whereas the secondary endpoint of ischemic events was similar between the two arms (HR 0.99; 95% CI [0.78–1.25]). Transition from dual antiplatelet therapy consisting of ticagrelor plus aspirin to ticagrelor-based monotherapy in high-risk patients at 3 months after percutaneous coronary intervention resulted in a lower risk of bleeding events without an increase in risk of death, MI, or stroke.

scholarly journals Use of Thromboelastography Platelet Mapping for Assessment of Individual Platelet Response Secondary to Oral Antiplatelet Therapy after Percutaneous Coronary Intervention: An Attempt to Start Personalized Antiplatelet Therapy in India

2021 ◽  
Author(s):  
Suvro Sankha Datta ◽  
Dibyendu De ◽  
Nadeem Afroz Muslim
Keyword(s):  
Percutaneous Coronary Intervention ◽  
Antiplatelet Therapy ◽  
Platelet Reactivity ◽  
Coronary Intervention ◽  
Platelet Inhibition ◽  
P Value ◽  
Platelet Response ◽  
Percutaneous Coronary ◽  
The Individual ◽  
Platelet Functions

AbstractHigh on-treatment platelet reactivity (HPR) with P2Y12 receptor antagonists in patients treated with dual antiplatelet therapy (DAPT) is strongly associated with adverse ischemic events after percutaneous coronary intervention (PCI). This prospective study was conducted to assess individual platelet response and HPR to antiplatelet medications in post-PCI cases by thromboelastography platelet mapping (TEG-PM). Total 82 patients who were on aspirin and on either clopidogrel, prasugrel, or ticagrelor were evaluated. The percentage of platelet inhibition to arachidonic acid (AA) and adenosine disdiphosphate (ADP) was calculated by [100-{(MA ADP/AA–MA Fibrin) / (MA Thrombin–MA Fibrin) × 100}], taking 50% response as cut-off for HPR. HPR to clopidogrel and prasugrel was 14.29 and 12.5%, respectively. No HPR was detected to aspirin and ticagrelor. The mean percentage of platelet inhibition was significantly higher in patients with ticagrelor 82.99, 95% confidence interval (CI) of [77.3, 88.7] as compared with clopidogrel 72.21, 95% CI of [65.3, 79.1] and prasugrel 64.2, 95% CI of [52.5, 75.9] (p-value of 0.041 and 0.003, respectively). Aspirin along with ticagrelor is associated with a higher mean percentage of platelet inhibition, and lower HPR as compared with the usage of aspirin combined with clopidogrel or prasugrel. Additionally, it might also be concluded that TEG-PM could be used effectively to measure the individual platelet functions which would make oral antiplatelet therapy more personalized for cardiac patients.

scholarly journals P2Y12 blocker monotherapy after percutaneous coronary intervention

2021 ◽  
Author(s):  
F. W. A. Verheugt ◽  
P. Damman ◽  
S. A. J. Damen ◽  
J. J. Wykrzykowska ◽  
E. C. I. Woelders ◽  
...  
Keyword(s):  
Coronary Artery Disease ◽  
Percutaneous Coronary Intervention ◽  
Coronary Artery ◽  
Antiplatelet Therapy ◽  
Coronary Intervention ◽  
Randomised Trials ◽  
Novel Therapy ◽  
Percutaneous Coronary ◽  
Artery Disease ◽  
Meta Analyses

AbstractFor secondary prevention of coronary artery disease (CAD) antiplatelet therapy is essential. For patients undergoing a percutaneous coronary intervention (PCI) temporary dual antiplatelet platelet therapy (DAPT: aspirin combined with a P2Y12 blocker) is mandatory, but leads to more bleeding than single antiplatelet therapy with aspirin. Therefore, to reduce bleeding after a PCI the duration of DAPT is usually kept as short as clinically acceptable; thereafter aspirin monotherapy is administered. Another option to reduce bleeding is to discontinue aspirin at the time of DAPT cessation and thereafter to administer P2Y12 blocker monotherapy. To date, five randomised trials have been published comparing DAPT with P2Y12 blocker monotherapy in 32,181 stented patients. Also two meta-analyses addressing this novel therapy have been presented. P2Y12 blocker monotherapy showed a 50–60% reduction in major bleeding when compared to DAPT without a significant increase in ischaemic outcomes, including stent thrombosis. This survey reviews the findings in the current literature concerning P2Y12 blocker monotherapy after PCI.

Dosing Strategies for Antiplatelet Therapy in Percutaneous Coronary Intervention

2010 ◽  
Vol 38 (2) ◽  
pp. 50-58 ◽  
Author(s):  
Gilles Lemesle ◽  
Gabriel Maluenda ◽  
Laurent Bonello ◽  
Cédric Delhaye ◽  
Arnaud Sudre ◽  
...  
Keyword(s):  
Percutaneous Coronary Intervention ◽  
Antiplatelet Therapy ◽  
Coronary Intervention ◽  
Percutaneous Coronary ◽  
Dosing Strategies
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