RT Journal Article SR Electronic A1 Spevak, Aimee T1 REGULATE-PCI Trial JF MD Conference Express YR 2015 FD SAGE Publications VO 15 IS 5 SP 12 OP 13 DO 10.1177/1559897715583815 UL http://mdc.sagepub.com/content/15/5/12.abstract AB The REGULATE-PCI trial compared REG1, a novel factor IXa inhibitor system for patients undergoing percutaneous coronary intervention, with bivalirudin for safety and efficacy outcomes. After just under a year of data collection, an unexpected increase in severe allergic reaction to the REG1 system led to early termination of the trial.