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Philips anuncia a conclusão do registro no estudo clínico do Hypothermia Therapeutic para pacientes do cardíaco de ataque

Press releases may be edited for formatting or style | April 30, 2013
Andover, Mass. - Royal Philips Electronics (NYSE: PHG, AEX: PHIA), today announced the completion of patient enrollment in the CHILL-MI clinical study designed to further evaluate the safety and effectiveness of the company's InnerCool RTx endovascular cooling system in patients with ST-elevation myocardial infarction (STEMI).

Following an acute myocardial infarction, restoring blood flow to the heart is critical to the survival of heart tissue.[1] However, this process may cause additional damage known as reperfusion injury.[2] Preventing heart tissue damage is a significant unmet medical need in the treatment of acute myocardial infarction. Endovascular cooling is a method for quickly achieving therapeutic hypothermia - reducing a patient's body temperature to help lower the amount of tissue injury.[3]

This prospective, randomized study enrolled 120 patients in nine European centers. Patients received immediate percutaneous coronary intervention (primary PCI) with or without adjunctive rapid endovascular cooling.

The primary endpoint of the study is reduction of myocardial infarct size as a percentage of myocardium at-risk, assessed by cardiac magnetic resonance imaging (MRI) at 4 days (±[<00B1>][<00B1>] 2 days). Secondary safety and efficacy endpoints are also being evaluated. Principal investigators for the study are David Erlinge, MD PhD, Professor of Cardiology and Goran Olivecrona, MD PhD from the Department of Cardiology, Lund University in Lund, Sweden.

Previous research has shown that therapeutic hypothermia can reduce infarct size in patients whose body temperature reaches ≤[<2264>][<2264>]35°C prior to reperfusion or opening of the blocked artery. The previously published Rapid MI-ICE study, which utilized the InnerCool system, showed a 38 percent reduction in infarct size in STEMI patients who were cooled to a body temperature of ≤[<2264>][<2264>]35°C before primary PCI.[4]

"Therapeutic hypothermia is the most promising therapy to reduce infarct size in STEMI patients," says Dr. Erlinge. "We look forward to sharing the clinical experience of this innovative therapy as the results become available." Added Dr. Olivecrona, "Clinical sites were able to cool patients quickly and the cooling procedure was easily implemented into the workflow of the cardiac catheterization lab with minimal delay."

"We are very pleased to report completion of enrollment in the CHILL-MI study," said Randy Whitfield, Vice President, Therapeutic Care, at Philips Healthcare. "This would offer a new therapeutic option for acute myocardial infarction patients who are at risk for heart tissue damage due to reperfusion injury."

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