Short-Term DAPT After Complex PCI With Third-Generation DES: A Post Hoc Analysis of the HOST-IDEA Trial

Jung Kyu Han, Keehwan Lee, Sang Hyeon Park, Seokhun Yang, Doyeon Hwang, Jeehoon Kang, Han Mo Yang, Kyung Woo Park, Hyun Jae Kang, Bon Kwon Koo, Seung Ho Hur, Weon Kim, Sang Hyun Park, Seung Hwan Han, Sang Hyun Kim, Yong Hoon Kim, Namho Lee, Seung Jin Lee, Sanghoon Shin, Hyo Soo Kim

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Abstract

BACKGROUND: The optimal duration of dual antiplatelet therapy (DAPT) after complex percutaneous coronary intervention (PCI) remains unclear. We aim to investigate the efficacy and safety of 3 to 6 months of DAPT over 12 months after complex PCI. METHODS: A post hoc analysis of the HOST-IDEA (Harmonizing Optimal Strategy for Treatment of Coronary Artery Stenosis-Coronary Intervention With Next-Generation Drug-Eluting Stent Platforms and Abbreviated Dual Antiplatelet Therapy) randomized trial which enrolled patients undergoing PCI with third-generation drug-eluting stents was performed. Complex PCI was defined by any of the following: ≥3 stents implanted, ≥3 lesions treated, bifurcation PCI with 2-stenting, total stent length ≥60 mm, left main PCI, or heavy calcification. The major end points were target lesion failure, a composite of cardiac death, target vessel myocardial infarction, and clinically driven target lesion revascularization for ischemic outcomes, and major bleeding, defined as BARC (Bleeding Academic Research Consortium) type 3 or 5, for bleeding outcomes at 12 months. RESULTS: Among 1992 patients, 624 underwent complex PCI. The complex PCI group had clinical features associated with high bleeding risk. A shortened DAPT duration did not increase the risk of target lesion failure, with hazard ratios of 0.818 (95% CI, 0.403-1.659) for the complex PCI group and 1.282 (95% CI, 0.506-3.249) for the noncomplex PCI group (Pinteraction=0.451). Conversely, it decreased the risk of major bleeding in the complex PCI group (hazard ratio, 0.269 [95% CI, 0.075-0.965]), but not in the noncomplex PCI group (hazard ratio, 1.534 [95% CI, 0.627-3.754], showing a significant interaction; Pinteraction=0.029). CONCLUSIONS: In patients undergoing complex PCI with a third-generation drug-eluting stent, a 3- to 6-month duration of DAPT was associated with a reduced risk of bleeding without an increased risk of ischemic events compared with 12-month DAPT. REGISTRATION: URL: https://www.clinicaltrials.gov; Unique Identifier: NCT02601157.

Original languageEnglish
Article numbere014623
JournalCirculation: Cardiovascular Interventions
Volume18
Issue number5
DOIs
StatePublished - 1 May 2025

Bibliographical note

Publisher Copyright:
© 2025 American Heart Association, Inc.

Keywords

  • coronary artery disease
  • drug-eluting stents
  • percutaneous coronary intervention
  • risk

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