Phase 4
N=204
Prasugrel Switching Study in Patients With Acute Coronary Syndrome (ACS) Who Underwent Percutaneous Coronary Intervention (PCI)
Acute Coronary Syndrome (ACS)
Bottom Line
View on ClinicalTrials.gov: NCT03672097 ↗Enrolled (actual)
204
Serious AEs
13.8%
Results posted
Nov 2021
Primary outcome: Primary: Mean Change From Baseline to Week 4 in P2Y12 Reaction Units During Period 1 — -18.2 P2Y12 reaction unit
Study Design & Population
- Study type
- Interventional
- Phase
- Phase 4
- Interventions
- Prasugrel (Drug)
- Age
- Adult, Older Adult · 20+ yrs
- Sex
- All
- Sponsor
- Daiichi Sankyo Taiwan Ltd., a Daiichi Sankyo Company
- Primary completion
- Aug 2020
Outcome Measures
| Outcome | Result | p-value |
|---|---|---|
| PRIMARY Mean Change From Baseline to Week 4 in P2Y12 Reaction Units During Period 1 |
-18.2 | — |
| PRIMARY Number of Participants With Thrombolysis In Myocardial Infarction (TIMI) Major Bleeding Events During Period 2 |
4 | — |
| SECONDARY Number of Participants With High On-Treatment Platelet Reactivity (HTPR) During Period 1 |
23; 6 | — |
| SECONDARY Mean Percentage Change From Baseline to Week 4 in Platelet Inhibition During Period 1 |
7.2 | — |
| SECONDARY Number of Participants With Adverse Events of Special Interest During Period 1 |
0; 1; 2; 0; 0; 0 | — |
| SECONDARY Number of Participants With Adverse Events of Special Interest During Period 2 |
4; 12; 4; 0; 2; 0 | — |
Summary
This Phase IV, multicenter trial is designed to assess the efficacy of prasugrel in preventing the formation of blood clots in Taiwanese patients with ACS who have been treated with PCI.
Eligibility Criteria
Inclusion Criteria
- Is within the age limits and has signed informed consent
- Weighs at least 50 kg
- Had a previous diagnosis of ACS (UA, STEMI, or NSTEMI), underwent PCI, and received one of the following treatments:
- Clopidogrel MD of 75 mg and aspirin 81-100 mg for 2-8 weeks following clopidogrel loading dose (LD) of 300 mg or 600 mg at the time of PCI
- Ticagrelor MD of 90 mg twice daily (BID) and aspirin 81-100 mg for 1-4 weeks and switching to clopidogrel MD of 75 mg and aspirin 81-100 mg for 2-4 weeks following ticagrelor LD of 180 mg at the time of PCI
- Clopidogrel MD 75 mg and aspirin 81-100 mg for 2-8 weeks following ticagrelor LD of 180 mg at the time of PCI
- Or based on investigator's judgment with at least 2 weeks continued use of clopidogrel MD and aspirin 81-100 mg per day before switching to prasugrel and maximum 8 weeks P2Y12 inhibitors MD treatment (prasugrel is not allowed)
- Is willing and able to abide by the rules of the research unit and study restrictions
- If a woman of child-bearing potential, has a negative serum pregnancy test at screening
- Agrees to use at least one method of contraception during the study
Exclusion Criteria
- Has active bleeding, significant risk of hemorrhage, or unusual susceptibility to bleed
- Had previous hemorrhagic stroke at any time, or transient ischemic attack (TIA) or ischemic stroke within 3 months before the informed consent date
- Has known allergies or hypersensitivity to prasugrel, aspirin, or any of their excipients
- Has significant hypertension at screening or baseline assessment
- Has hemoglobin levels <10.5 g/dL or hematocrit levels <30%
- Has severe left ventricular systolic dysfunction, ejection fraction <30%
- Is currently undergoing hemodialysis
- Has evidence of severe hepatic disease or any of the following: serum alanine transaminase or aspartate transaminase ≥3 times the upper limit of normal (ULN); or bilirubin ≥2 times the ULN at screening
- Has any clinical laboratory result performed at screening that is determined to be detrimental to the patient or could compromise the study as determined the Investigator
- Has previously participated in this study or in another interventional trial that is not compatible with this study
- Has evidence of significant active neuropsychiatric disease, alcohol abuse or drug abuse as determined by the Investigator
Data sourced from ClinicalTrials.gov (NCT03672097). Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication.