RT Journal Article SR Electronic A1 Sylvester, Bruce T1 Promise and Problems Emerge for Oral Investigative Factor Xa Drug in Treating Acute Coronary Syndrome JF MD Conference Express YR 2008 FD SAGE Publications VO 8 IS 6 SP 22 OP 23 DO 10.1177/155989770800800613 UL http://mdc.sagepub.com/content/8/6/22.abstract AB Treatment with investigative apixaban, an oral factor Xa inhibitor, shows promise as add-on protection against recurrent ischemic cardiovascular events among acute coronary syndrome patients who already are on standard antiplatelet therapy, including aspirin and clopidogrel. But dose-dependent bleeding remains an unresolved problem. This article discusses the Phase 2, Placebo-Controlled, Randomized, Double-Blind, Parallel Arm, Dose-Ranging Study to Evaluate Safety and Efficacy of Apixaban in Patients with a Recent Acute Coronary Syndrome [APPRAISE-1; NCT00313300] trial.