CINCINNATI -- The combination of the clot-busting drug tPA with an infusion of the antiplatelet drug eptifibatide dissolves blood clots safely and more quickly than tPA alone, a study led by University of Cincinnati (UC) researchers has found.
Results from the study, known as the CLEAR-ER Stroke Trial, are published online in the journal Stroke: Journal of the American Heart Association. UC was the coordinating center for the trial, which included nine medical centers comprising 21 hospitals.
Standard treatment for acute ischemic stroke (characterized by an obstruction to the blood flow, typically a clot), is intravenous (IV) delivery of U.S. Food and Drug Administration-approved tissue plasminogen activator (tPA) within three hours of stroke onset.
The CLEAR-ER (Combined Approach to Lysis Utilizing Eptifibatide and rt-PA in Acute Ischemic Stroke Enhanced Regimen) trial was a phase-2 clinical trial designed to determine the safety of an enhanced dosing regimen using eptifibatide and establish evidence for a phase-3 clinical trial, which would use a larger pool of subjects. As an antiplatelet medication, eptifibatidedelivered intravenouslyworks together with the tPA to break up the existing clot and prevents formation of additional clots by decreasing the clumping of blood platelets.
"Through our team's research efforts, we were able to determine that eptifibatide may be safely combined with medium-dose IV tPA administered within three hours of symptom onset and that a phase-3 clinical trial is warranted," says Opeolu Adeoye, MD, UC assistant professor of emergency medicine and neurosurgery and a neurointensivist at UC Medical Center.
Adeoye was co-principal investigator along with Arthur Pancioli, MD, professor and Richard C. Levy Chair for Emergency Medicine at UC. Both Adeoye and Pancioli are members of the UC Neuroscience Institute, one of four institutes affiliated with the UC College of Medicine and UC
|Contact: Kathryn Cosse|
University of Cincinnati Academic Health Center