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Acetyl Salicylic Elimination Trial JAPAN: The ASET JAPAN Pilot Study
Sponsor: Meditrix Corp
Summary
The ASET Japan Pilot study is a multicenter, single arm, open-label trial of single antiplatelet therapy with prasugrel for patients undergoing successful and optimal Percutaneous Coronary Intervention (PCI) for Chronic Coronary Syndrome (CCS) and Non-ST elevation Acute coronary syndrome (NSTE-ACS). The enrollment consists of two phases: i) 200 patients presenting with CCS; ii) 200 patients presenting with NSTE-ACS. The patients will be loaded with standard dual antiplatelet therapy according to local practice (usually aspirin 81 to 330 mg and clopidogrel 300 mg or prasugrel 20 mg or ticagrelor 180 mg, unless patient is on long-term therapy) prior to the PCI procedure. After PCI, if the results are considered to be satisfactory by the operator based on clinical (e.g. clinical status, ECG, etc.), angiographic and/or findings from intracoronary imaging, only then patients will be enrolled in the study and loaded with prasugrel 20 mg if the patients have not loaded prasugrel prior to PCI or have not taken a maintenance dose of prasugrel before the index PCI. Patients continued with prasugrel only (3.75 mg once a day) for three months in CCS patients and for 12 months in NSTE-ACS patients. Aspirin, clopidogrel, and ticagrelor will be discontinued just after the index procedure. i. CCS patients (phase 1): At the 3-months follow-up visit, prasugrel monotherapy will be replaced by aspirin monotherapy or dual-antiplatelet therapy according to local standard of care. Clinical follow-up with office visit will be performed at 3 months and telephone contacts at 1, and 4 months (final follow-up). ii. NSTE-ACS patients (phase 2): At the 12-months follow-up visit, prasugrel monotherapy will be replaced by aspirin monotherapy for an observational period of 1 month, followed by antiplatelet treatment according to local practice. Clinical follow-up with office visit will be performed at 1 and 12 months and telephone contacts at 3, 6, 9 and 13 months (final follow-up). All events will be adjudicated by an independent clinical events committee (CEC). An independent Data Safety and Monitoring Board (DSMB) will monitor the individual and collective safety of the patients in the study during enrolment of CCS patients and up to 3 months follow-up of CCS patients, and during enrollment of NSTE-ACS patients and up to 12 months follow-up of NSTE-ACS patients (timepoint for primary endpoint).
Official title: A Multicenter, Single Arm, Open-label Trial of Prasugrel Monotherapy After PCI With the SYNERGY® Stent in Patients With Chronic Coronary Syndrome or Non-ST-elevation Acute Coronary Syndromes
Key Details
Gender
All
Age Range
20 Years - Any
Study Type
INTERVENTIONAL
Enrollment
307
Start Date
2020-09-15
Completion Date
2025-12-31
Last Updated
2024-08-22
Healthy Volunteers
No
Interventions
prasugrel Monotherapy
Prasugrel Monotherapy according to the local dosage (Loading : 20mg, maintenance: 3.75mg/day)
Locations (13)
CORRIB Research Centre for Advanced Imaging and Core laboratoryNational University of Ireland, Galway
Galway, Ireland
Fujita Health University, Okazaki Medical Centre
Okazaki, Aichi-ken, Japan
Fujita Health University
Toyoake, Aichi-ken, Japan
Sapporo Higashi Tokushukai Hospital
Sapporo, Hokkaido, Japan
Iwate Medical University Hopsital
Morioka, Iwate, Japan
St. Marianna University School of Medicine Hospital
Kawasaki, Kanagawa, Japan
JCHO Hoshigaoka Medical center
Hirakata, Osaka, Japan
Kinki University Hospital, Faculty of Medicine
Ōsaka-sayama, Osaka, Japan
Yamaguchi University Hospital
Ube, Yamaguchi, Japan
Mitusi Memorial Hospital
Tokyo, Japan
St. Luke's international hospital
Tokyo, Japan
Teikyo University Hospital
Tokyo, Japan
Toho University Ohashi Medical Center
Tokyo, Japan