Comparison of Dual Antiplatelet Therapy De-escalation by Dose Reduction Versus Switching in Patients Undergoing PCI: The Switching Antiplatelet-8 (SWAP-8) Study

Summary

Dual antiplatelet therapy (DAPT) with low-dose aspirin and a P2Y12 inhibitor is the current standard of care in patients with coronary artery disease experiencing an acute event or undergoing percutaneous coronary intervention. However, the ischemic benefits are counterbalanced by a significant increase in bleeding events. Over time, different DAPT de-escalation strategies have been developed to reduce the bleeding risk while maintaining the ischemic protection, but there is currently no head-to-head comparison between them. The purpose of this clinical trial is to conduct a head-to-head comparison on the pharmacodynamic efficacy of DAPT de-escalation by dose reduction to low-dose prasugrel (5 mg od) and DAPT de-escation by switching from standard-dose more potent P2Y12 receptor inhibitor to standard-dose clopidogrel (75 mg). To determine if the PD profiles of these two strategies are comparable, we aim to conduct a non-inferiority study.

Timeline

Start

2025-03-10

Primary completion

2026-11-01

Completion

2027-01-07

Publications

• Background Erlinge D, Ten Berg J, Foley D, Angiolillo DJ, Wagner H, Brown PB, Zhou C, Luo J, Jakubowski JA, Moser B, Small DS, Bergmeijer T, James S, Winters KJ. Reduction in platelet reactivity with prasugrel 5 mg in low-body-weight patients is noninferior to prasugrel 10 mg in higher-body-weight patients: results from the FEATHER trial. J Am Coll Cardiol. 2012 Nov 13;60(20):2032-40. doi: 10.1016/j.jacc.2012.08.964. Epub 2012 Oct 17.
• Background Erlinge D, Gurbel PA, James S, Lindahl TL, Svensson P, Ten Berg JM, Foley DP, Wagner H, Brown PB, Luo J, Zhou C, Moser BA, Jakubowski JA, Small DS, Winters KJ, Angiolillo DJ. Prasugrel 5 mg in the very elderly attenuates platelet inhibition but maintains noninferiority to prasugrel 10 mg in nonelderly patients: the GENERATIONS trial, a pharmacodynamic and pharmacokinetic study in stable coronary artery disease patients. J Am Coll Cardiol. 2013 Aug 13;62(7):577-83. doi: 10.1016/j.jacc.2013.05.023. Epub 2013 Jun 7.
• Background Capodanno D, Mehran R, Krucoff MW, Baber U, Bhatt DL, Capranzano P, Collet JP, Cuisset T, De Luca G, De Luca L, Farb A, Franchi F, Gibson CM, Hahn JY, Hong MK, James S, Kastrati A, Kimura T, Lemos PA, Lopes RD, Magee A, Matsumura R, Mochizuki S, O'Donoghue ML, Pereira NL, Rao SV, Rollini F, Shirai Y, Sibbing D, Smits PC, Steg PG, Storey RF, Ten Berg J, Valgimigli M, Vranckx P, Watanabe H, Windecker S, Serruys PW, Yeh RW, Morice MC, Angiolillo DJ. Defining Strategies of Modulation of Antiplatelet Therapy in Patients With Coronary Artery Disease: A Consensus Document from the Academic Research Consortium. Circulation. 2023 Jun 20;147(25):1933-1944. doi: 10.1161/CIRCULATIONAHA.123.064473. Epub 2023 Jun 19.

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