SAN FRANCISCO (Nov. 9, 2011; 12:50 p.m.) Late breaking clinical trial results from testing of cangrelor, an investigational intravenous antiplatelet, showed patients can be "bridged" from the time that their physicians stop their oral antiplatelet drugs until they undergo cardiac surgery. Study results demonstrated cangrelor maintained target levels of platelet inhibition known to be associated with a low risk of thrombotic events, such as stent thrombosis, vs. placebo. The BRIDGE Trial results were presented here today at the Cardiovascular Research Foundation (CRF) annual Transcatheter Cardiovascular Therapeutics (TCT) conference.
"Patients with coronary stents require drugs that block platelets that can stick to their stents and cause clots. When these patients require surgery, the oral drugs must be stopped days in advance to wear off and reduce the risk of surgical bleeding; however, this puts them at an increased risk of thrombotic events," said Eric Topol, MD, cardiologist and chief academic officer at Scripps Health and BRIDGE Trial primary investigator. "With nothing available that blocks platelets and then goes away quickly, we are between the rock of thrombosis and the hard place of surgical bleeding."
BRIDGE results showed 99 percent of cangrelor-treated patients maintained target levels of platelet inhibition for all time points measured over the bridging period compared to 19 percent of placebo patients (p<0.001). The primary safety measure demonstrated no significant excess in surgical bleeding complications (data below).
The results were presented by Dominick J. Angiolillo, MD, PhD, medical director, cardiovascular research program at the University of Florida College of Medicine Jacksonville, "BRIDGE results support the hypothesis that intravenous cangrelor may be a feasible and well tolerated management strategy in patients who require prolonged platelet P2Y12 inhibition after thienopyridine discontinuation pr
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