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Prasugrel monotherapy safe, effective after PCI in patients with stable CAD, finds study
Aspirin-free prasugrel monotherapy following successful everolimus-eluting stent implantation has demonstrated feasibility and safety without any stent thrombosis in selected low-risk patients with stable CAD, suggests the findings of a recent research from the Journal of the American College of Cardiology.
Recent studies have suggested that short dual-antiplatelet therapy strategies may provide an adequate balance between ischemic and bleeding risks. However, the complete omission of aspirin immediately after percutaneous coronary intervention (PCI) has not been tested so far.
The aim of this study, a multicenter, single-arm, open-label, first-in-human, proof-of-concept pilot trial, was to evaluate the hypothesis that prasugrel monotherapy following successful everolimus-eluting stent implantation is feasible and safe in patients with stable coronary artery disease (CAD).
A team under Norihiro Kogame,from the Department of Cardiology, Amsterdam University Medical Center, designed the study as a multicenter, single-arm, open-label trial with a stopping rule based on the occurrence of definite stent thrombosis (if >3, trial enrollment would be terminated). Patients undergoing successful everolimus-eluting stent implantation for stable CAD with SYNTAX (Synergy Between PCI With Taxus and Cardiac Surgery)scores <23 were included. All participants were on standard dual-antiplatelet therapy at the time of index PCI. Aspirin was discontinued on the day of the index procedure but given prior to the procedure; prasugrel was administered in the catheterization laboratory immediately after the successful procedure, and aspirin-free prasugrel became the therapy regimen from that moment. Patients were treated solely with prasugrel for 3 months. The primary ischemic endpoint was the composite of cardiac death, spontaneous target vessel myocardial infarction, or definite stent thrombosis, and the primary bleeding endpoint was Bleeding Academic Research Consortium types 3 and 5 bleeding up to 3 months.
Data analysis revealed the following facts.
- From February 22, 2018, to May 7, 2019, 201 patients were enrolled. All patients underwent PCI for stable CAD.
- Overall, 98.5% of patients were adherent to prasugrel at 3-month follow-up. The primary ischemic and bleeding endpoints occurred in 1 patient (0.5%).
- No stent thrombosis events occurred.
"Aspirin-free prasugrel monotherapy was feasible and safe following successful DES implantation in a population of selected patients with stable CAD with low anatomic complexity. Our findings may help underpin larger randomized controlled studies to evaluate the aspirin-free strategy compared with traditional DAPT following PCI." Opined the research team.
Primary source: Journal of the American College of Cardiology
Dr Satabdi Saha (BDS, MDS) is a practicing pediatric dentist with a keen interest in new medical researches and updates. She has completed her BDS from North Bengal Dental College ,Darjeeling. Then she went on to secure an ALL INDIA NEET PG rank and completed her MDS from the first dental college in the country – Dr R. Ahmed Dental College and Hospital. She is currently attached to The Marwari Relief Society Hospital as a consultant along with private practice of 2 years. She has published scientific papers in national and international journals. Her strong passion of sharing knowledge with the medical fraternity has motivated her to be a part of Medical Dialogues.
Dr Kamal Kant Kohli-MBBS, DTCD- a chest specialist with more than 30 years of practice and a flair for writing clinical articles, Dr Kamal Kant Kohli joined Medical Dialogues as a Chief Editor of Medical News. Besides writing articles, as an editor, he proofreads and verifies all the medical content published on Medical Dialogues including those coming from journals, studies,medical conferences,guidelines etc. Email: drkohli@medicaldialogues.in. Contact no. 011-43720751