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Individualising dual antiplatelet therapy after percutaneous coronary intervention: the IDEAL-PCI registry.

ABSTRACT: OBJECTIVE:To evaluate the clinical utility of individualising dual antiplatelet therapy (DAPT) after percutaneous coronary intervention (PCI) in an all-comers population, including ST-elevation myocardial infarction (STEMI) patients. SETTING:Tertiary care single centre registry. PARTICIPANTS:1008 consecutive PCI patients with stent implantation, without exclusion criteria. INTERVENTION:Peri-interventional individualisation of DAPT, guided by multiple electrode aggregometry (MEA), to overcome high on-treatment platelet reactivity (HPR) to ADP-induced (?50 U) and arachidonic acid (AA)-induced aggregation (>35 U). OUTCOME MEASURES:The primary efficacy end point was definite stent thrombosis (ST) at 30 days. The primary safety end point was thrombolysis in myocardial infarction (TIMI) major and minor bleeding. Secondary end points were probable ST, myocardial infarction, cardiovascular death and the combined end point: major cardiac adverse event (MACE). RESULTS:53% of patients presented with acute coronary syndrome (9% STEMI, 44% non-ST-elevation). HPR to ADP after 600 mg clopidogrel loading occurred in 30% of patients (73±19 U vs 28±11 U; p<0.001) and was treated by prasugrel or ticagrelor (73%), or clopidogrel (27%) reloading (22±12 U; p<0.001). HPR to ADP after prasugrel loading occurred in 2% of patients (82±26 U vs 19±10 U; p<0.001) and was treated with ticagrelor (34±15 U; p=0.02). HPR to AA occurred in 9% of patients with a significant higher proportion in patients with HPR to ADP (22% vs 4%, p<0.001) and was treated with aspirin reloading. Definite ST occurred in 0.09% of patients (n=1); probable ST, myocardial infarction, cardiovascular death and MACE occurred in 0.19% (n=2), 0.09% (n=1) and 1.8% (n=18) of patients. TIMI major and minor bleeding did not differ between patients without HPR and individualised patients (2.6% for both). CONCLUSIONS:Individualisation of DAPT with MEA minimises early thrombotic events in an all-comers PCI population to an unreported degree without increasing bleeding. A randomised multicentre trial utilising MEA seems warranted. TRIAL REGISTRATION NUMBER:http://www.clinicaltrials.gov; NCT01515345.

SUBMITTER: Christ G

PROVIDER: S-EPMC4216867 | biostudies-literature | 2014 Oct

REPOSITORIES: biostudies-literature

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Individualising dual antiplatelet therapy after percutaneous coronary intervention: the IDEAL-PCI registry.

Christ Günter G Siller-Matula Jolanta M JM Francesconi Marcel M Dechant Cornelia C Grohs Katharina K Podczeck-Schweighofer Andrea A

BMJ open 20141031 10

<h4>Objective</h4>To evaluate the clinical utility of individualising dual antiplatelet therapy (DAPT) after percutaneous coronary intervention (PCI) in an all-comers population, including ST-elevation myocardial infarction (STEMI) patients.<h4>Setting</h4>Tertiary care single centre registry.<h4>Participants</h4>1008 consecutive PCI patients with stent implantation, without exclusion criteria.<h4>Intervention</h4>Peri-interventional individualisation of DAPT, guided by multiple electrode aggreg ...[more]

PMID: 25361837

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Project description:IntroductionDual antiplatelet therapy (DAPT) is routinely given to patients after percutaneous coronary intervention (PCI) with stenting; however, there is ongoing debate about the optimal duration, especially in specific patient groups. In the proposed systematic review, we intend to assess the optimal duration of DAPT following PCI with stenting, with a focus on clinically relevant patient subgroups.Methods and analysisWe will perform a comprehensive search of the published literature for randomised controlled trials (RCTs) assessing the benefits and harms of extended DAPT (>12 months) compared with short-term DAPT (6-12 months) following PCI with stenting (bare metal or drug eluting). ClinicalTrials.gov and ICTRP will also be searched to identify ongoing and completed clinical trials. Two independent reviewers will select studies for inclusion, and the risk of bias will be assessed by use of Cochrane's Risk of Bias tool. The primary outcome of interest is death (all-cause, cardiovascular, non-cardiovascular). Secondary outcomes are bleeding (major, minor, gastrointestinal), urgent target vessel revascularisation, major adverse cardiovascular events, myocardial infarction, stroke and stent thrombosis. Subgroup data will be sought for patients with prior myocardial infarction, acute coronary syndrome at presentation and diabetes, and based on smoking status and age group. Data will be analysed by random-effects meta-analysis, and separate analyses will be performed for patient subgroups. Bayesian network meta-analysis will be performed to investigate the effect of individual P2Y12 inhibitors at different DAPT durations longer than 6 months.Ethics and disseminationThis review will provide a comprehensive overview of the available evidence of the benefits and harms associated with extending DAPT beyond 12 months following PCI with stenting and the effects on clinically important subgroups. The results of this review will inform clinical and policy decisions regarding the optimal treatment duration of DAPT following PCI with stenting.Systematic review registrationPROSPERO no. CRD42018082587.

Dataset Information

Individualising dual antiplatelet therapy after percutaneous coronary intervention: the IDEAL-PCI registry.

Publications

Individualising dual antiplatelet therapy after percutaneous coronary intervention: the IDEAL-PCI registry.

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