Genotype-guided de-escalation and abbreviation of dual antiplatelet therapy in patients with myocardial infarction and high bleeding risk: Design and rationale of the investigator-initiated, multicenter, randomized, controlled trial, DAN-DAPT

IF 3.7 2区医学 Q1 CARDIAC & CARDIOVASCULAR SYSTEMS

American heart journal Pub Date : 2025-02-26 DOI:10.1016/j.ahj.2025.02.020

Mia Ravn Jacobsen MD , Reza Jabbari MD, PhD , Erik Lerkevang Grove MD, PhD , Michael Mæng MD, PhD, DMSC , Karsten Veien MD , Mikkel Hougaard MD, PhD , Philip Freeman MB, BS, PhD , Henning Kelbæk MD, DMSC , Mette Gitz Charlot MD, PhD , Thomas Engstrøm MD, PhD, DMSC , Rikke Sørensen MD, PhD

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引用次数: 0

Abstract

Rationale

Approximately one-third of patients with myocardial infarction (MI) treated with percutaneous coronary intervention (PCI) are at high risk of bleeding side-effects when on dual antiplatelet therapy (DAPT). High bleeding risk is often accompanied by high ischemic risk, thus challenging the choice of P2Y₁₂ inhibitor and duration of DAPT. The optimal DAPT strategy for these patients remains debated, and it is unknown whether genotype-guided DAPT de-escalation to clopidogrel and aspirin, with or without abbreviation of DAPT to 3 months, is noninferior in terms of net adverse clinical events (NACE) and superior in reducing bleeding side-effects compared with standard DAPT for 6 months.

Design

The DAN-DAPT trial is an investigator-initiated, open-label, multicenter, multiarm, randomized controlled trial conducted at all Danish hospitals performing PCI. From 2022 to 2029, we planned to randomize 2,700 patients with MI and high bleeding risk in a 1:1:1 ratio to 1 of 3 groups: CYP2C19-genotyping and 6 months DAPT (experimental group 1), CYP2C19-genotyping and 3 months DAPT (experimental group 2), and 6 months DAPT with prasugrel (or ticagrelor) and aspirin (control group). The coprimary outcomes are NACE defined as the composite of all-cause mortality, recurrent MI, definite stent thrombosis, stroke, and BARC type 3-5 bleeding (Bleeding Academic Research Consortium), and major and minor bleedings defined as the composite of BARC type 2-5 bleedings at 1 year.

Conclusion

DAN-DAPT trial is an open-label, multicenter, randomized controlled trial comparing genotype-guided DAPT de-escalation to clopidogrel - with or without DAPT abbreviation to 3 months - and standard DAPT for 6 months after PCI in high bleeding risk patients with MI. As of March 2025, 36% of the planned 2,700 patients have been enrolled in the study.

Trial Registration

ClincialTrials.gov (NCT05262803) and EU number (2022-500125-32-00).

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来源期刊

American heart journal 医学-心血管系统

CiteScore

8.20

自引率

2.10%

发文量

214

审稿时长

38 days

期刊介绍： The American Heart Journal will consider for publication suitable articles on topics pertaining to the broad discipline of cardiovascular disease. Our goal is to provide the reader primary investigation, scholarly review, and opinion concerning the practice of cardiovascular medicine. We especially encourage submission of 3 types of reports that are not frequently seen in cardiovascular journals: negative clinical studies, reports on study designs, and studies involving the organization of medical care. The Journal does not accept individual case reports or original articles involving bench laboratory or animal research.