In the randomized , double-blind ACCOAST ( A Comparison of prasugrel at the time of percutaneous Coronary intervention Or as pre-treatment At the time of diagnosis in patients with non-ST-segment elevation myocardial infarction ) trial , @,@ patients were diagnosed with NSTEMI and @ % underwent PCI ; @,@ received pre-treatment with prasugrel ( @-mg loading dose ) , and @,@ received placebo .