Dataset Information

De-escalation of antiplatelets after percutaneous coronary intervention: a Bayesian network meta-analysis of various de-escalation strategies.

ABSTRACT:

Aims

To compare early de-escalation of dual antiplatelet therapy (DAPT) (1-3 months) to monotherapy with either P2Y12 inhibitor or aspirin vs. 12 months DAPT after percutaneous coronary intervention (PCI) with drug-eluting stent (DES).

Methods and results

Electronic databases of Medline, Embase, and Cochrane library were searched through February 2020 to identify randomized controlled trials. A Bayesian network meta-analysis was conducted with random effects model. The main endpoints of interest were cardiovascular mortality and total bleeding events. Among seven trials (35 821 patients), 52.6% patients were presented with acute coronary syndrome. A total of 3359 patients and 14 530 patients were de-escalated to aspirin and P2Y12 inhibitor monotherapy, respectively. At a median follow-up of 12 months, compared with 12 months of DAPT, there was no significant difference in cardiovascular mortality between 1-month DAPT followed by P2Y12 inhibitor monotherapy [hazard ratio (HR) 0.84 (95% credible interval 0.29-2.43)], 3 months of DAPT followed by P2Y12 inhibitor monotherapy [HR 0.74 (0.39-1.46)], or 3 months of DAPT [HR 1.00 (0.54-1.86)] followed by aspirin monotherapy. Except for de-escalation of DAPT to aspirin monotherapy after 3 months [HR 0.75 (0.43-1.20)], de-escalation to P2Y12 inhibitor monotherapy after 1 month [HR 0.28 (0.10-0.83)], or 3 months [HR 0.57 (0.33-0.98)] were associated with significant decrease in total bleeding events. There were no significant differences in terms of ischaemic endpoints among different DAPT strategies.

Conclusion

Early de-escalation of DAPT (1-3 months) to monotherapy with a P2Y12 inhibitor instead of aspirin might be a safer and equally effective approach compared with 12 months of DAPT in patients with PCI and DES.

SUBMITTER: Khan SU

PROVIDER: S-EPMC8599873 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Project description:ImportanceDe-escalation of dual-antiplatelet therapy through dose reduction of prasugrel improved net adverse clinical events after acute coronary syndrome (ACS), mainly through the reduction of bleeding without an increase in ischemic outcomes. However, whether such benefits are similarly observed in those receiving complex procedures is unknown.ObjectiveTo investigate whether the benefits of prasugrel dose de-escalation therapy are maintained in the complex percutaneous coronary intervention (PCI) subgroup.Design, setting, and participantsThis was a post hoc analysis of the HOST-REDUCE-POLYTECH-ACS trial, a randomized, open-label, adjudicator-blinded, multicenter trial performed at 35 hospitals in South Korea. Study participants included patients with ACS who were receiving PCI. Data were collected from September 30, 2014, to December 18, 2015, and analyzed from September 17, 2020, to June 15, 2021.Interventions and exposuresPatients were randomized to a prasugrel dose de-escalation (5 mg daily) at 1 month post-PCI group or a conventional (10 mg daily) group. Complex PCI was defined as having at least 1 of the following features: 3 or more stents implanted, 3 or more lesions treated, bifurcation PCI, total stent length 60 mm or larger, left main PCI, or heavy calcification.Main outcomes and measuresThe main analysis end points were MACE (major adverse cardiac event, a composite of cardiovascular death, nonfatal myocardial infarction, stent thrombosis, and repeat revascularization) at 1 year for ischemic outcomes, and BARC (Bleeding Academic Research Consortium) class 2 or higher bleeding events at 1 year for bleeding outcomes.ResultsOf 2271 patients (mean [SD] age, 58.9 [9.0] years; 2024 [89%] male patients) for whom full procedural data were available, 705 patients received complex PCI, and 1566 patients received noncomplex PCI. Complex PCI was associated with higher rates of ischemic outcomes but not with bleeding outcomes. Prasugrel dose de-escalation did not increase the risk of MACE (hazard ratio [HR], 0.88; 95% CI, 0.47-1.66; P = .70 in complex PCI; HR, 0.81; 95% CI, 0.45-1.46; P = .48 in noncomplex PCI; P for interaction = .84) but decreased BARC class 2 or higher bleeding events (HR, 0.25; 95% CI, 0.10-0.61; P = .002 in complex PCI; HR, 0.62; 95% CI, 0.38-1.00; P = .05 in noncomplex PCI; P for interaction = .08), albeit with wide 95% CIs.Conclusions and relevanceIn this post hoc analysis of patients with ACS, prasugrel dose de-escalation compared with conventional therapy was not associated with an increased risk of ischemic outcomes but may reduce the risk of minor bleeding events at 1 year, irrespective of PCI complexity.Trial registrationClinicalTrials.gov Identifier: NCT02193971.